131 results on '"Li Hai-ming"'
Search Results
102. Evanescent wave decomposition in a novel resonator comprising unmagnetized and magnetized plasma layers
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Kong, Xiang-kun, primary, Liu, Shao-bin, additional, Zhang, Hai-feng, additional, Bian, Bo-rui, additional, Li, Hai-ming, additional, and Zhao, Xin, additional
- Published
- 2013
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103. The Relationship between Minimum Zone Sphere and Minimum Circumscribed Sphere and Maximum Inscribed Sphere
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Meng, Fan Wu, primary, Xu, Chun Guang, additional, Li, Hai Ming, additional, and Hao, Juan, additional
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- 2012
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104. Research of routing algorithm for wireless sensor network
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Cheng, Meng-Xiao, primary, Huang, Ting-Lei, additional, Li, Hai-Ming, additional, and Xin, Hong-Bo, additional
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- 2010
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105. DV-RSD localization algorithm based on FIND in wireless sensor network
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Xin, Hong-Bo, primary, Huang, Ting-Lei, additional, Li, Hai-Ming, additional, and Cheng, Meng-Xiao, additional
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- 2010
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106. Research on Bayesian Decision Theory in Pattern Recognition
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Li, Hai-ming, primary, Huang, Ting-lei, additional, and Wang, Xin, additional
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- 2009
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107. Effects of Colloid Release on Permeability of Water-Bearing Media in Different pH Medium
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Li, Hai-Ming, primary, Ma, Jie, additional, Wu, Jin-Lan, additional, Li, Yun, additional, and Gu, Xiao-Ming, additional
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- 2009
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108. Adsorption of Aqueous Oil on Sediments in the Bohai Tidal Flat
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Li, Hai-Ming, primary, Zheng, Xi-Lai, additional, Gu, Xiao-Ming, additional, Ma, Jie, additional, Jia, Xiao-Yu, additional, Wang, Bo, additional, and Wu, Jin-Lan, additional
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- 2008
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109. Study on Effect Hemopoiesis Reconstituted of Auto-Mesenchymal Stromal Cells or Allo-Mesenchymal Stromal Cells Transplantion.
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Wang, Chun Yan, primary, Tan, Huo, additional, Huang, Zhen Qian, additional, Li, Hai Ming, additional, Liu, Dan, additional, and Zheng, Run Hui, additional
- Published
- 2007
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110. A Method Checking the Correctness of Sentence of Formal language Based on Linear Resolution
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Du, Ya-Jun, primary, Li, Hai-ming, additional, Hao, Fei, additional, and Xie, Chuan, additional
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- 2006
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111. The Impact of US and CGIAR Germplasm on Maize Production in China
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LI, Hai-ming, primary, HU, Rui-fa, additional, and ZHANG, Shi-huang, additional
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- 2006
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112. Permeability Loss of Substrate in High Salinity Landscape Water Constructed Wetland.
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Li Hai-ming, Xu Xiao-mei, Li Zi-chen, and Tong Qi
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- 2011
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113. Manual reduction of children's Monteggia fractures associated with anterior interosseous nerve injury.
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LI Hai-ming and LIU Xiao-jun
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- 2014
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114. Case-control study on close reduction and plaster slab fixation combined with plaster external traction for the treatment of pediatric Gartland type III supracondylar humerus fractures.
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KANG Yu-xiang, WEI Xiao-chun, and LI Hai-ming
- Published
- 2014
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115. A comparative study of band Faraday effects in 3D magnetized photonic crystals with different high-symmetry lattices with uniaxial materials.
- Author
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Zhang, HaiFeng, Liu, ShaoBin, and Li, Hai-Ming
- Subjects
COMPARATIVE studies ,FARADAY effect ,THREE-dimensional imaging ,PHOTONIC crystals ,SYMMETRY (Physics) ,ANISOTROPY - Abstract
In this paper, the band Faraday effects in three-dimensional (3D) magnetized plasma photonic crystals (MPPCs) composed of anisotropic dielectric (the uniaxial material) spheres immersed in uniform magnetized plasma background with various lattices including the face-centered-cubic (fcc), body-centered-cubic (bcc), and simple-cubic (sc) lattices are theoretically investigated by a modified plane wave expansion (PWE) method, as the Faraday effects of magnetized plasma are considered (the incidence electromagnetic wave vector is parallel to the external magnetic field at any time). The equations for calculating the anisotropic PBGs in the first irreducible Brillouin zone are theoretically deduced. The anisotropic PBGs and a flatbands region can be achieved as the uniaxial material introduced into 3D MPPCs. The 3D MPPCs with fcc, bcc, sc lattices will not exhibit a complete PBG unless the uniaxial material is introduced. The influences of the ordinary refractive index, extraordinary refractive index, filling factor, plasma frequency, and plasma cyclotron frequency (the external magnetic field) on the properties of anisotropic PBGs for 3D MPPCs with fcc, bcc, sc lattices are investigated in detail, respectively, and some corresponding physical explanations are also given. The numerical results show that the anisotropy can open partial band gaps in 3D MPPCs with fcc, bcc, sc lattices, and the complete PBGs can be obtained compared to 3D MPPCs containing of the conventional isotropic dielectric. It also is shown that the anisotropic PBGs can be tuned by the ordinary refractive index, extraordinary refractive index, plasma cyclotron frequency, filling factor, and plasma frequency, respectively. The larger relative bandwidth of complete PBG can be obtained by introducing the uniaxial material as 3D MPPCs are with high-symmetry lattices. This also provides a way to design the tunable MPPCs devices. [ABSTRACT FROM AUTHOR]
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- 2014
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116. Saltwater intrusion into groundwater systems in the Mekong Delta and links to global change
- Author
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Xiao, Han, Tang, Yin, Li, Hai-Ming, Zhang, Lu, Ngo-Duc, Thanh, Chen, De-Liang, and Tang, Qiu-Hong
- Abstract
In recent decades, changes in temperature, wind, and rainfall patterns of Southeast Asia induced by climate warming in the Tibetan Plateau result in many environmental changes that have serious impacts on the lower reach of the Mekong River basin, a region already battling severe water-related environmental problems such as pollution, saltwater intrusion, and intensified flooding. In the densely populated Mekong Delta located at the mouth of the Mekong River basin in southern Vietnam, the hydrogeological systems have been transformed from an almost undisturbed to a human-impacted state and saltwater intrusion into surface water and groundwater systems has grown to be a detrimental issue recently, seriously threatening freshwater supply and degrading the eco-environment. In this article, the impacts of human activities and climate change (e.g., groundwater over-exploitation, relative sea-level rise, storm surge, changing precipitation and temperature regimes, uncontrolled drainage canals, operation of hydropower dams, and rapid development of aquaculture) on saltwater intrusion into groundwater systems in the Mekong Delta are briefly reviewed. Based on current status of research findings regarding saltwater intrusion and the subsequent groundwater quality degradation under the impacts of human activities and climate change, major knowledge gaps and challenges are identified and discussed, including thickness and permeability of the silt and clay aquitard, present-day highly heterogeneous 3D distribution of saline groundwater zones, dynamic variation of saltwater/freshwater transition zone, and the most effective and economical control measure. To bridge these gaps, future work should: 1) apply environmental isotope techniques in combination with borehole tests to gain detailed hydrogeological information regarding spatial variation of permeability and thickness of the silt and clay aquitard; 2) intensify regular groundwater monitoring and collect as much groundwater samples from multiple hydro-stratigraphic units at different depths as possible to visualize the present-day highly heterogeneous 3D distribution of saline groundwater; 3) develop a series of variable-density coupled groundwater flow and salt transport models representing various scenarios of human activities and climate change for predicting future extent of saltwater intrusion; and 4) identify the dominant factor causing saltwater intrusion and determine the most effective and economical engineering technique to address saltwater intrusion problems in the Mekong Delta.
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- 2021
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117. Analysis of Drought Tolerance and Associated Traits in Upland Cotton at the Seedling Stage.
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Li, Hai-Ming, Liu, Shao-Dong, Ge, Chang-Wei, Zhang, Xiao-Meng, Zhang, Si-Ping, Chen, Jing, Shen, Qian, Ju, Fei-Yan, Yang, Yong-Fei, Li, Yang, Liu, Rui-Hua, Ma, Hui-Juan, Zhao, Xin-Hua, Li, Cun-Dong, and Pang, Chao-You
- Subjects
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COTTON quality , *COTTON , *DROUGHT tolerance , *DROUGHT management , *MITOGEN-activated protein kinases , *DROUGHTS , *RNA sequencing , *ABSCISIC acid - Abstract
(1) Background: Upland cotton (Gossypium hirsutum L.) is the most important natural fiber worldwide, and it is extensively planted and plentifully used in the textile industry. Major cotton planting regions are frequently affected by abiotic stress, especially drought stress. Drought resistance is a complex, quantitative trait. A genome-wide association study (GWAS) constitutes an efficient method for dissecting the genetic architecture of complex traits. In this study, the drought resistance of a population of 316 upland cotton accessions was studied via GWAS. (2) Methods: GWAS methodology was employed to identify relationships between molecular markers or candidate genes and phenotypes of interest. (3) Results: A total of 8, 3, and 6 SNPs were associated with the euphylla wilting score (EWS), cotyledon wilting score (CWS), and leaf temperature (LT), respectively, based on a general linear model and a factored spectrally transformed linear mixed model. For these traits, 7 QTLs were found, of which 2 each were located on chromosomes A05, A11, and D03, and of which 1 was located on chromosome A01. Importantly, in the candidate regions WRKY70, GhCIPK6, SnRK2.6, and NET1A, which are involved in the response to abscisic acid (ABA), the mitogen-activated protein kinase (MAPK) signaling pathway and the calcium transduction pathway were identified in upland cotton at the seedling stage under drought stress according to annotation information and linkage disequilibrium (LD) block analysis. Moreover, RNA sequencing analysis showed that WRKY70, GhCIPK6, SnRK2.6, and NET1A were induced by drought stress, and the expression of these genes was significantly different between normal and drought stress conditions. (4) Conclusions: The present study should provide some genomic resources for drought resistance in upland cotton. Moreover, the germplasm of the different phenotypes, the detected SNPs and, the potential candidate genes will be helpful for molecular marker-assisted breeding studies about increased drought resistance in upland cotton. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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118. Utility of enteral nutrition via percutaneous transhepatic cholangiography drainage catheterization in late-stage malignant obstructive jaundice.
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Cao JH, Mu ZH, Li HM, Li GX, Chen J, Yao JJ, Yang XW, and Wang S
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- Humans, Male, Female, Middle Aged, Aged, Stents, Treatment Outcome, Catheterization methods, Postoperative Complications etiology, Malnutrition etiology, Malnutrition therapy, Aged, 80 and over, Jaundice, Obstructive etiology, Jaundice, Obstructive therapy, Jaundice, Obstructive surgery, Drainage methods, Enteral Nutrition methods, Cholangiography methods
- Abstract
Objective: The purpose of this study was to explore the clinical benefits of establishing an enteral nutrition (EN) pathway via percutaneous transhepatic cholangiography drainage (PTCD) catheterization in patients with late-stage malignant obstructive jaundice (MOJ). Methods: We selected 30 patients diagnosed as having late-stage MOJ with malnutrition. A dual-lumen biliary-enteral nutrition tube was placed via PTCD along with a biliary stent implantation. Postoperative EN was provided, and we observed the time taken for tube placement, its success rate, complications, and therapeutic efficacy. Results: Tube placement was successful in all 30 patients with an average procedural time of 5.7 ± 1.4 min with no tube placement complications. Compared to preoperative measures, there was a significant improvement in postoperative jaundice reduction and nutritional indicators one month after the procedure ( p < 0.05). Post-placement complications included tube perileakage in 5 cases, entero-biliary reflux in 4 cases, tube blockage in 6 cases, tube displacement in 4 cases, accidental tube removal in 3 cases, and tube replacement due to degradation in 8 cases, with tube retention time ranging from 42 to 314 days, averaging 124.7 ± 37.5 days. All patients achieved the parameters for effective home-based enteral nutrition with a noticeable improvement in their quality of life. Conclusion: In this study, we found that the technique of establishing an EN pathway via PTCD catheterization was minimally invasive, safe, and effective; the tube was easy to maintain; and patient compliance was high. It is, thus, suitable for long-term tube retention in patients with late-stage MOJ.
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- 2024
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119. Deep Learning Nomogram for the Identification of Deep Stromal Invasion in Patients With Early-Stage Cervical Adenocarcinoma and Adenosquamous Carcinoma: A Multicenter Study.
- Author
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Xiao ML, Qian T, Fu L, Wei Y, Ma FH, Gu WY, Li HM, Li YA, Qian ZX, Cheng JJ, Zhang GF, and Qiang JW
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- Female, Humans, Middle Aged, Nomograms, Retrospective Studies, Magnetic Resonance Imaging methods, Carcinoma, Adenosquamous diagnostic imaging, Carcinoma, Adenosquamous pathology, Carcinoma, Adenosquamous therapy, Deep Learning, Uterine Cervical Neoplasms pathology, Adenocarcinoma pathology
- Abstract
Background: Deep stromal invasion (DSI) is one of the predominant risk factors that determined the types of radical hysterectomy (RH). Thus, the accurate assessment of DSI in cervical adenocarcinoma (AC)/adenosquamous carcinoma (ASC) can facilitate optimal therapy decision., Purpose: To develop a nomogram to identify DSI in cervical AC/ASC., Study Type: Retrospective., Population: Six hundred and fifty patients (mean age of 48.2 years) were collected from center 1 (primary cohort, 536), centers 2 and 3 (external validation cohorts 1 and 2, 62 and 52)., Field Strength/sequence: 5-T, T2-weighted imaging (T2WI, SE/FSE), diffusion-weighted imaging (DWI, EPI), and contrast-enhanced T1-weighted imaging (CE-T1WI, VIBE/LAVA)., Assessment: The DSI was defined as the outer 1/3 stromal invasion on pathology. The region of interest (ROI) contained the tumor and 3 mm peritumoral area. The ROIs of T2WI, DWI, and CE-T1WI were separately imported into Resnet18 to calculate the DL scores (TDS, DDS, and CDS). The clinical characteristics were retrieved from medical records or MRI data assessment. The clinical model and nomogram were constructed by integrating clinical independent risk factors only and further combining DL scores based on primary cohort and were validated in two external validation cohorts., Statistical Tests: Student's t-test, Mann-Whitney U test, or Chi-squared test were used to compare differences in continuous or categorical variables between DSI-positive and DSI-negative groups. DeLong test was used to compare AU-ROC values of DL scores, clinical model, and nomogram., Results: The nomogram integrating menopause, disruption of cervical stromal ring (DCSRMR), DDS, and TDS achieved AU-ROCs of 0.933, 0.807, and 0.817 in evaluating DSI in primary and external validation cohorts. The nomogram had superior diagnostic ability to clinical model and DL scores in primary cohort (all P < 0.0125 [0.05/4]) and CDS (P = 0.009) in external validation cohort 2., Data Conclusion: The nomogram achieved good performance for evaluating DSI in cervical AC/ASC., Level of Evidence: 3 TECHNICAL EFFICACY: Stage 2., (© 2023 International Society for Magnetic Resonance in Medicine.)
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- 2024
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120. Intratumoral and peritumoral MRI radiomics nomogram for predicting parametrial invasion in patients with early-stage cervical adenocarcinoma and adenosquamous carcinoma.
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Xiao ML, Fu L, Wei Y, Liu AE, Cheng JJ, Ma FH, Li HM, Li YA, Lin ZJ, Zhang GF, and Qiang JW
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- Humans, Female, Nomograms, Retrospective Studies, Radiomics, Magnetic Resonance Imaging, Carcinoma, Adenosquamous diagnostic imaging, Carcinoma, Adenosquamous pathology, Carcinoma, Adenosquamous surgery, Uterine Cervical Neoplasms pathology, Adenocarcinoma pathology
- Abstract
Objective: To develop a comprehensive nomogram based on MRI intra- and peritumoral radiomics signatures and independent risk factors for predicting parametrial invasion (PMI) in patients with early-stage cervical adenocarcinoma (AC) and adenosquamous carcinoma (ASC)., Methods: A total of 460 patients with IB to IIB cervical AC and ASC who underwent preoperative MRI examination and radical trachelectomy/hysterectomy were retrospectively enrolled and divided into primary, internal validation, and external validation cohorts. The original (Ori) and wavelet (Wav)-transform features were extracted from the volumetric region of interest of the tumour (ROI-T) and 3mm- and 5mm-peritumoral rings (ROI-3 and ROI-5), respectively. Then the Ori and Ori-Wav feature-based radiomics signatures from the tumour (RST) and 3 mm- and 5 mm-peritumoral regions (RS3 and RS5) were independently built and their diagnostic performances were compared to select the optimal ones. Finally, the nomogram was developed by integrating optimal intra- and peritumoral signatures and clinical independent risk factors based on multivariable logistic regression analysis., Results: FIGO stage, disruption of the cervical stromal ring on MRI (DCSRMR), parametrial invasion on MRI (PMIMR), and serum CA-125 were identified as independent risk factors. The nomogram constructed by integrating independent risk factors, Ori-Wav feature-based RST, and RS5 yielded AUCs of 0.874 (0.810-0.922), 0.885 (0.834-0.924), and 0.966 (0.887-0.995) for predicting PMI in the primary, internal and external validation cohorts, respectively. Furthermore, the nomogram was superior to radiomics signatures and clinical model for predicting PMI in three cohorts., Conclusion: The nomogram can preoperatively, accurately, and noninvasively predict PMI in patients with early-stage cervical AC and ASC., Clinical Relevance Statement: The nomogram can preoperatively, accurately, and noninvasively predict PMI and facilitate precise treatment decisions regarding chemoradiotherapy or radical hysterectomy in patients with early-stage cervical AC and ASC., Key Points: The accurate preoperative prediction of PMI in early-stage cervical AC and ASC can facilitate precise treatment decisions regarding chemoradiotherapy or radical hysterectomy. The nomogram integrating independent risk factors, Ori-Wav feature-based RST, and RS5 can preoperatively, accurately, and noninvasively predict PMI in early-stage cervical AC and ASC. The nomogram was superior to radiomics signatures and clinical model for predicting PMI in early-stage cervical AC and ASC., (© 2023. The Author(s), under exclusive licence to European Society of Radiology.)
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- 2024
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121. Magnetic Resonance Imaging and Diffusion Weighted Imaging-Based Histogram in Predicting Mesenchymal Transition High-Grade Serous Ovarian Cancer.
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Cai SQ, Song ZY, Wu MR, Lu JJ, Sun WW, Wei F, Li HM, Qiang JW, Li YA, Zhu J, Zhou JJ, and Zeng MS
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- Humans, Female, Sensitivity and Specificity, Diffusion Magnetic Resonance Imaging methods, ROC Curve, Retrospective Studies, Magnetic Resonance Imaging methods, Ovarian Neoplasms diagnostic imaging
- Abstract
Rationale and Objectives: To investigate the value of magnetic resonance imaging (MRI) including diffusion-weighted imaging (DWI) findings in predicting mesenchymal transition (MT) high-grade serous ovarian cancer (HGSOC)., Materials and Methods: Patients with HGSOC were enrolled from May 2017 to December 2020, who underwent pelvic MRI including DWI (b = 0,1000 s/mm
2 ) before surgery, and were assigned to the MT HGSOC or non-MT HGSOC group according to histopathology results. Clinical characteristics and MRI features including DWI-based histogram metrics were assessed and compared between the two groups. Univariate and multivariate analyses were performed to identify the significant variables associated with MT HGSOC - these variables were then incorporated into a predictive nomogram, and ROC curve analysis was subsequently carried out to evaluate diagnostic performance., Results: A total of 81 consecutive patients were recruited for pelvic MRI before surgery, including 37 (45.7%) MT patients and 44 (54.3%) non-MT patients. At univariate analysis, the features significantly related to MT HGSOC were identified as absence of discrete primary ovarian mass, pouch of Douglas implants, ovarian mass size, tumor volume, mean, SD, median, and 95th percentile apparent diffusion coefficient (ADC) values (all p < 0.05). At multivariate analysis, the absence of discrete primary ovarian mass {odds ratio (OR): 46.477; p = 0.025}, mean ADC value ≤ 1.105 (OR: 1.023; p = 0.009), and median ADC value ≤ 1.038 (OR: 0.982; p = 0.034) were found to be independent risk factors associated with MT HGSOC. The combination of all independent criteria yielded the largest AUC of 0.82 with a sensitivity of 83.87% and specificity of 66.67%, superior to any of the single predictor alone (p ≤ 0.012). The predictive C-index nomogram performance of the combination was 0.82., Conclusion: The combination of absence of discrete primary ovarian mass, lower mean ADC value, and median ADC value may be helpful for preoperatively predicting MT HGSOC., (Copyright © 2022 The Association of University Radiologists. Published by Elsevier Inc. All rights reserved.)- Published
- 2023
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122. Clinical characteristics and postoperative outcomes of systemic artery-to-pulmonary vessel fistula in hemoptysis patients.
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Zhang CJ, Jiang FM, Zuo ZJ, Li SS, Zhao YA, Li PJ, Ye DF, Zhang LL, Tong LH, Chen SL, Li HM, Luo FM, and Wang Y
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- Bronchial Arteries diagnostic imaging, Hemoptysis diagnostic imaging, Hemoptysis etiology, Hemoptysis therapy, Humans, Lung, Retrospective Studies, Treatment Outcome, Embolization, Therapeutic methods, Fistula complications
- Abstract
Objectives: To investigate the clinical characteristics and outcomes on the success of bronchial arterial embolization (BAE) in patients with and without systemic artery-to-pulmonary vessel fistula (SA-PF) and to evaluate the feasibility of CTA in the assessment of SA-PF., Methods: We retrospectively enrolled 420 consecutive patients that underwent BAE for hemoptysis control in our hospital from September 2011 to May 2019. The clinical characteristics, preprocedural CTA findings, BAE procedural findings, and follow-up outcomes were collected. Patients were divided into two groups according to DSA findings: patients with SA-PF and those without., Results: A total of 184 (43.7%) patients presented with SA-PF. Pneumonia was less likely to be the concomitant condition in patients with SA-PF (p < 0.001). The mean number of culprit arteries per patient was significantly higher in patients with SA-PF compared to that in patients without SA-PF (p = 0.017). The SA-PF patients saw a greater probability of recurrence (HR: 2.782, 95% CI: 1.617-4.784, p < 0.001). SA-pulmonary venous fistula (SA-PVF) favored lower hemoptysis recurrence rate (HR: 0.199, 95%CI: 0.052-0.765, p = 0.019). SA-pulmonary artery fistula (SA-PAF) can be detected by optimized CTA protocol with a detection rate of 65.3% (49/75)., Conclusions: The presence of SA-PF is an independent risk factor predicting early recurrence of hemoptysis after BAE. SA-PVF seems to be a protective factor for longer hemoptysis control compared to SA-PAF. Optimized preprocedural CTA is a reliable examination to identify SA-PAF., Key Points: • The appearance of SA-PF is associated with a greater probability of early recurrent hemoptysis after bronchial artery embolization. • The presence of SA-PVF seems to be a protective factor for longer hemoptysis control after BAE compared to SA-PAF. • Optimized CTA protocol seems to be a promising auxiliary examination to detect SA-PAF., (© 2021. The Author(s), under exclusive licence to European Society of Radiology.)
- Published
- 2022
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123. CT-guided transthoracic pulmonary artery catheterization: an experimental study in a porcine model.
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Ye DF, Jiang FM, Yang L, Zhao YA, Xiong XY, Xiang LY, Xiao LP, Yang G, Yang XL, Li HM, Wang Y, and Luo FM
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- Animals, Humans, Pulmonary Artery diagnostic imaging, Punctures, Swine, Tomography, X-Ray Computed, Catheterization, Swan-Ganz, Heart Valve Prosthesis
- Abstract
Objectives: We investigated the safety and feasibility of CT-guided transthoracic pulmonary artery catheterization (TPAC) in a porcine model., Methods: Procedures were conducted on ten mature Bama miniature pigs. After anesthesia, chest CT was performed in the left lateral decubitus position to determine the puncture route. Under the guidance of multiple CT scans, the introducer sheath was inserted from the right chest wall of the pig into the right pulmonary artery using the Seldinger technique. Then, a catheter connected with a transducer was inserted into the sheath to measure the pulmonary artery pressure. Finally, an active approximator was used to close the puncture site on the pulmonary artery. The pigs were followed up for 8 weeks to evaluate the operation-related complications and survival., Results: Ten of 11 CT-guided TPAC procedures were successfully performed on ten pigs, rendering a technical success rate of 90.9%. One pig had hemoptysis while the needle was being inserted during the first operation, and a second procedure was successfully conducted 17 days later. Other complications, including pulmonary bleeding along the needle track (3 of 11; 27.3%), unclosed pulmonary artery puncture sites (3 of 10; 30%), pneumothorax (1 of 11; 9.1%), and hemopericardium (1 of 11; 9.1%), spontaneously resolved without complication-specific treatment. The mean pulmonary arterial pressure was 32 ± 17.6 mmHg. All animals survived the procedure and reached the end of the follow-up period., Conclusions: CT-guided TPAC is feasible and safe in a porcine model, serving as a potential alternative pathway for pulmonary artery intervention., Key Points: • TPAC is feasible and safe in a porcine model, serving as a potential alternative pathway for pulmonary artery intervention. • This novel approach allows for faster access to the pulmonary artery, and it might be easier to operate the tip of the catheter to super-select the intent branch of the pulmonary artery. • TPAC can be an alternative pulmonary artery intervention pathway in patients with mechanical right-heart valves, great-vessel transposition, and other obstacles., (© 2021. The Author(s), under exclusive licence to European Society of Radiology.)
- Published
- 2022
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124. Development of MRI-Based Radiomics Model to Predict the Risk of Recurrence in Patients With Advanced High-Grade Serous Ovarian Carcinoma.
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Li HM, Gong J, Li RM, Xiao ZB, Qiang JW, Peng WJ, and Gu YJ
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- Female, Humans, Middle Aged, Ovary diagnostic imaging, Ovary pathology, Retrospective Studies, Survival Analysis, Image Interpretation, Computer-Assisted methods, Magnetic Resonance Imaging methods, Neoplasm Recurrence, Local diagnostic imaging, Neoplasm Recurrence, Local pathology, Ovarian Neoplasms diagnostic imaging, Ovarian Neoplasms pathology, Support Vector Machine
- Abstract
OBJECTIVE. The purpose of our study was to develop a radiomics model based on preoperative MRI and clinical information for predicting recurrence-free survival (RFS) in patients with advanced high-grade serous ovarian carcinoma (HGSOC). MATERIALS AND METHODS. This retrospective study enrolled 117 patients with HGSOC, including 90 patients with recurrence and 27 without recurrence; 1046 radiomics features were extracted from T2-weighted images and contrast-enhanced T1-weighted images using a manual segmentation method. L1 regularization-based least absolute shrinkage and selection operator (LASSO) regression was performed to select features, and the synthetic minority oversampling technique (SMOTE) was used to balance our dataset. A support vector machine (SVM) classifier was used to build the classification model. To validate the performance of the proposed models, we applied a leave-one-out cross-validation method to train and test the classifier. Cox proportional hazards regression, Harrell concordance index (C-index), and Kaplan-Meier plots analysis were used to evaluate the associations between radiomics signatures and RFS. RESULTS. The fusion radiomics-based model yielded a significantly higher AUC value of 0.85 in evaluating RFS than the model using contrast-enhanced T1-weighted imaging features alone or T2-weighted imaging features alone (AUC = 0.79 and 0.74 and p = .02 and .01, respectively). Kaplan-Meier survival curves showed significant differences between high and low recurrence risk in patients with HGSOC by different models. The fusion model combining radiomics features and clinical information showed higher performance than the clinical model (C-index = 0.62 and 0.60, respectively). CONCLUSION. The proposed MRI-based radiomics signatures may provide a potential way to develop a prediction model and can help identify patients with advanced HGSOC who have a high risk of recurrence.
- Published
- 2021
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125. Isolation, purification, characterization and antioxidant activity of polysaccharides from the stem barks of Acanthopanax leucorrhizus.
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Hu HB, Liang HP, Li HM, Yuan RN, Sun J, Zhang LL, Han MH, and Wu Y
- Abstract
A novel water-soluble polysaccharide (named ALP-1) was successfully isolated from the stem barks of Acanthopanax leucorrhizus by hot-water extraction, and further purified by Cellulose DEAE-52 and Sephadex G-100 chromatography. The structure of ALP-1 was characterized by HPLC, HPGPC, partial acid hydrolysis, periodate oxidation, Smith degradation, methylation, together with UV, IR and NMR spectral analysis. The antioxidant activities also were evaluated in vitro. Structural analysis revealed that ALP-1 was a homogeneous galactan with the average molecular weight of 169 kDa, composed of galactose, glucose, mannose and arabinose in a molar ratio of 6.1:2.1:1.1:1.0, owning a backbone structure of 1,6-linked α-d-Galp residues with some branches of α-d-Manp-(1 → 3)-α-l-Araf residues at O-3 and α-d-Galp residues at O-4 of 1,6-linked α-d-Galp. Antioxidant assay showed that ALP-1 exhibited strong DPPH and HO scavenging activities, as well as ferric-reducing antioxidant power. These results provide a scientific basis for the further use of polysaccharides from A. leucorrhizus., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2018
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126. [Prevalence and Risk Factors of Major Depression Disorders in Local Teachers Three Months after Lushan Earthquake].
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Chen R, Li HM, Chen DC, Gong Y, Zhu SY, Tian YL, and Zhang J
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- Anxiety, China, Faculty, Humans, Prevalence, Prospective Studies, Risk Factors, Surveys and Questionnaires, Depressive Disorder, Major epidemiology, Disasters, Earthquakes
- Abstract
Objective: To determine the prevalence and risk factors of major depression disorder (MDD) in local teachers at an early stage post Lushan earthquake., Methods: A prospective cohort study was undertaken, with 319 local teachers receiving diagnostic MDD assessment using MINI 14-22 d and 85-95 d after the earthquake, respectively. Possible predictive factors were identified using a self-developed questionnaire. Univariate and multivariate logistic regression analyses were performed to determine the predictors of MDD., Results: Fifteen (4. 70%) local teachers were diagnosed with MDD. Those who had an injured direct relative [odds ratio (OR) = 6. 26], with inhabitable house (OR=4. 26), and felt easy to get sad 14-20 d weeks post earthquake (OR= 11. 45) were more likely to suffer from MDD than others. An anxious emotion 14-20 d post earthquake was a protective factor (OR=0. 14) of MDD., Conclusion: Post earthquake MDD in local teachers deserves concerns, especially for those who have injured relatives, with an inhabitable house, and who feel easy to get sad 14-20 d post earthquake.
- Published
- 2015
127. [Manual reduction of children's Monteggia fractures associated with anterior interosseous nerve injury].
- Author
-
Li HM and Liu XJ
- Subjects
- Arm Bones injuries, Arm Bones surgery, Child, Child, Preschool, Female, Fracture Fixation, Internal, Humans, Male, Arm Bones innervation, Forearm Injuries surgery, Median Nerve injuries, Monteggia's Fracture surgery
- Abstract
Objective: To study clinical results of the manual reduction in treatment., Methods: From October 2010 to April 2013,39 children with Monteggia fracture associated with anterior interosseous nerve injury were treated by manual reduction and fixation on buckling rotation backward,including 17 females and 22 males with an average age of 6.3 years old ranging from 3.2 to 11 years old. Among them, 15 cases were on the right side and 24 cases on the left. The course of disease was 40 minutes to 8 days (averaged 1.5 days). There were 7 cases with skateboard injured, 13 cases with stumble injured, 11 cases with falling injured,8 cases with air bed injured. According to Bado classification, 13 cases were type II, 22 cases were type III, 4 cases were type IV., Results: The distal forefinger showed exercise normally in 34 cases at 3 weeks after treatment, and the patients restored normal activities at 6 weeks after treatment. All patients were follow-up from 54 days to 6 months (averaged 67 days. According to Mayo elbow functional evaluation standard,the scoring result was 19.62±1.35 in activity, 45.00 ± 0.00 in pain, 9.87 ± 0.80 in stability, 25.00±0.00 in strength, 99.49 ±1.92 in total. The outcome of all patients was excellent and good evaluation results., Conclusion: If the anterior interosseous nerve injury could be identified early and treated timely, patients could gradually restore reasonable function and recover with satisfactory results. Raising understanding of anterior interosseous nerve injury can effectively reduce misdiagnosis.
- Published
- 2014
128. [Case-control study on close reduction and plaster slab fixation combined with plaster external traction for the treatment of pediatric Gartland type III supracondylar humerus fractures].
- Author
-
Kang YX, Wei XC, and Li HM
- Subjects
- Case-Control Studies, Child, Child, Preschool, Female, Fracture Healing, Humans, Infant, Male, Casts, Surgical, External Fixators, Humeral Fractures surgery, Traction methods
- Abstract
Objective: To compare the therapeutic effects between close reduction and plaster slab fixation combined with plaster external traction and operation for the treatment of pediatric closed Gartland type III supracondylar humerus fractures without neurovascular injury complications., Methods: From June 2009 to June 2012, 151 children with closed Gartland III supracondylar humerus fractures were retrospectively studied and divided into two groups, including 87 boys and 64 girls, ranging in age from 1 to 12 years old with an average of 5.3 years old. Among them, 76 children (conservative group) were treated with close reduction and plaster slab fixation combined with plaster external traction; 75 children (operation group) underwent surgical operation. The time of elbow joint function exercise, the healing time of fracture, the function recovery of elbow joint and carrying angle was recorded and analyzed. The therapeutic effects were evaluated by the Flynn criteria system., Results: All patients were followed up from 6 to 36 months (18.3 months on average). The average time of fracture healing and elbow joint functional exercise of the conservative group was shorter than those of operation group (P < 0.001). Motion range of the elbows and carrying angle of two groups were no statistical difference (P > 0.05). According to Flynn criteria system, in conservative group, the result was excellent in 31 cases, good in 35, fair in 7, and poor in 3; in operation group, 27 in excellent, 30 in good, 17 in fair and 1 in poor; there was no significant difference between two groups in therapeutic effects (P > 0.05)., Conclusion: Close reduction and plaster slab fixation combined with plaster external traction in treatment of pediatric closed Gartland type III supracondylar humerus fractures without neurovascular injury complications,which has similar effect to surgical treatment, and the time of fracture healing and elbow joint function exercise are significantly shorter.
- Published
- 2014
129. [Colloid effects on temporal-spatial variability of iron and manganese in shallow groundwater of garbage contaminated sites].
- Author
-
Ma J, Li HM, Gu XM, and Li Y
- Subjects
- Colloids, Garbage, Refuse Disposal methods, Water Movements, Iron analysis, Manganese analysis, Soil analysis, Soil Pollutants analysis, Water Pollutants, Chemical analysis
- Abstract
Simulation tank experiment was conducted to elucidate the temporal-spatial variability of Iron and Manganese in leachate pollution plumes of water-bearing media. Colloid effects on transport and transformation of Fe and Mn in water-bearing media were determined emphatically. Moreover, the mechanism of Fe and Mn transport and transformation were discussed by the convection-dispersion, dissolution and transport-deposition of colloid. The results show that the total Fe and Mn in leachate pollution plume was 2.82 times and 7.51 times of infiltration leachate due to the dissolution of water-bearing medium. Along the flow direction, Fe and Mn pollution plumes spread, and the central region of plumes gradually widened by the convection-dispersion and dissolution. In the presence of colloid, the average transport velocity of Fe and Mn plumes central axis from 1.17 cm/d and 1.75 cm/d increased to 1.83 cm/d and 2.5 cm/d respectively, colloid had obvious facilitation to the migration of Fe and Mn.
- Published
- 2011
130. Effects of glycoprotein IIb/IIIa antagonists and chloride channel blockers on platelet cytoplasmic free calcium.
- Author
-
Yin SM, Xie SF, Nie DN, Li YQ, Li HM, Ma LP, Wang XJ, Wu YD, and Feng JH
- Subjects
- Adolescent, Adult, Dose-Response Relationship, Drug, Female, Humans, Male, Platelet Aggregation drug effects, 4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid pharmacology, Blood Platelets metabolism, Calcium metabolism, Chloride Channels antagonists & inhibitors, Cytosol metabolism, Niflumic Acid pharmacology, Oligopeptides pharmacology, Platelet Glycoprotein GPIIb-IIIa Complex antagonists & inhibitors
- Published
- 2005
131. Argon supper-cryosurgery for patients with middle and late stage liver cancer.
- Author
-
Dou KF, Yue SQ, Li HM, Yang YL, Tao KS, Guan WX, Chen Y, and Sun K
- Subjects
- Adult, Aged, Argon, Female, Humans, Liver Neoplasms mortality, Male, Middle Aged, Postoperative Complications, Retrospective Studies, Treatment Outcome, Cryosurgery methods, Liver Neoplasms surgery
- Abstract
Objective: To assess the value of argon supper-cryosurgery for 42 patients with middle and late stage liver cancer., Methods: Forty-two patients who had received argon supper-cryosurgery were analyzed retrospectively in terms of their clinical characteristics as well as the performance of argon supper-cryosurgery., Results: All patients were ameliorated in symptoms shortly after the operation, including pain alleviation, psyche straightening up, alpha-fetoprotein descending or recovery. Jaundice occurred in 1 patient and intraabdominal hemorrhage in 2. The levels of aspartate transaminase and alanine transaminase in all patients were elevated 1 month after the operation, and normalized after protective therapy of the liver. No operative death was noted., Conclusions: Cold and heat reversed therapy of argon supper-cryosurgery can drastically destroy tumor tissue, especially the tumors which are too large to resect or close to the large vessels. It is applicable to increase the operative rate, decrease the operative death rate, and enlarge the therapeutic scope.
- Published
- 2003
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