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4. Ray computational ghost imaging based on rotational modulation method

Author

Zhou, Zhi, Li, Sangang, Liao, Shan, Gong, Sirun, Su, Rongrong, Zhao, Chuxiang, Yang, Li, Liu, Qi, Yan, Yucheng, Liu, Mingzhe, and Cheng, Yi

Subjects
Physics - Medical Physics, Quantum Physics
Abstract

The CGI (CGI) has the potential of low cost, low dose, and high resolution, which is very attractive for the development of radiation imaging field. However, many sub-coding plates must be used in the modulation process, which greatly affects the development of CGI technology. In order to reduce the coding plates, we refer to the rotation method of computed tomography (CT), then propose a novel CGI method based on rotational modulation method of a single-column striped coding plate. This method utilizes the spatial variation of a single sub-coding plate (rotation) to realize multiple modulation of the ray field and improves the utilization rate of a single sub-coding plate. However, for this rotation scheme of CGI, the traditional binary modulation matrix is no longer applicable. To obtain the system matrix of the rotated striped coding plate, an area model based on beam boundaries is established. Subsequently, numerical and Monte Carlo simulations were conducted. The results reveal that our scheme enables high-quality imaging of N*N resolution objects using only N sub-coding plates, under both full-sampling and under-sampling scenarios. Moreover, our scheme demonstrates superiority over the Hadamard scheme in both imaging quality and the number of required sub-coding plates, whether in scenarios of full-sampling or under-sampling. Finally, an {\alpha} ray imaging platform was established to further demonstrate the feasibility of the rotational modulation method. By employing our scheme, a mere 8 sub-coding plates were employed to achieve CGI of the radiation source intensity distribution, achieving a resolution of 8*8. Therefore, the novel ray CGI based on rotational modulation method can achieve high-quality imaging effect with fewer sub-coding plates, which has important practical value and research significance for promoting single-pixel radiation imaging technology.

Published
2023

10. Gait Planning and Switching Strategy of Hexapod Robot with Single-Leg Failure

Author

You, Bo, Gao, Biao, Li, Jiayu, Chen, Chen, Yan, Yucheng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Fu, Wenxing, editor, Gu, Mancang, editor, and Niu, Yifeng, editor

Published
2023
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35. Use of Both Serum Cystatin C and Creatinine as Diagnostic Criteria for Cardiac Surgery-Associated Acute Kidney Injury and Its Correlation with Long-Term Major Adverse Events

Author

Che, Miaolin, primary, Wang, Xudong, additional, Xie, Bo, additional, Huang, Ritai, additional, Liu, Shang, additional, Yan, Yucheng, additional, Zhu, Mingli, additional, Lu, Renhua, additional, Qian, Jiaqi, additional, Zhang, Weiming, additional, Gu, Leyi, additional, Mou, Shan, additional, Ni, Zhaohui, additional, and Xue, Song, additional

Published
2019
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36. Early serum cystatin C-enhanced risk prediction for acute kidney injury post cardiac surgery: a prospective, observational, cohort study.

Author

Wang, Xudong, Lin, Xinghui, Xie, Bo, Huang, Ritai, Yan, Yucheng, Liu, Shang, Zhu, Mingli, Lu, Renhua, Qian, Jiaqi, Ni, Zhaohui, Xue, Song, and Che, Miaolin

Subjects
ACUTE kidney failure, CARDIAC surgery, SURGICAL complications, OPERATIVE surgery, GLOMERULAR filtration rate, PROXIMAL kidney tubules, MORBID obesity
Abstract

Background: Acute kidney injury (AKI) is a common post-cardiac surgery complication. It leads to increased morbidity and mortality. The aim of our study is to identify the prevalence and risk factors of AKI and to demonstrate if early postoperative serum cystatin C (sCyC) could accurately predict the development of AKI. Methods: We prospectively studied 628 patients undergoing elective cardiac surgery. Pre-morbid and operative variables known to be or potentially associated with AKI or other adverse outcomes were examined. AKI was defined according to Kidney Disease Improving Global Outcomes (KDIGO) creatinine criteria. Blood samples for biomarker measurement were collected at baseline, within 10 h of surgical completion and daily for three days. Logistic regression was used to assess predictive factors for AKI including 10 h sCyC. Model discrimination was assessed using receiver operator characteristic (ROC) curves. Results: AKI occurred in 178 (28.3%) patients, Stage 1 in 17.5%, Stage 2 in 8.6% and Stage 3 in 2.2%. Mortality rose progressively with increased AKI stage (non-AKI 0.2%, Stage 1 1.8%, Stage 2 11.1% and Stage 3 35.7%). Age > 75 years, baseline estimated glomerular filtration rate (eGFR), proteinuria, diabetes mellitus, hypertension, hyperuricaemia, NYHA classification >2, recent myocardial infarction were associated with AKI in univariate analysis. A multivariate logistic model with clinical factors (age, eGFR, hypertension, NYHA classification >2, combined surgery and operation time) demonstrated moderate discrimination for AKI (area under ROC curve [AUC] 0.75). The 10 h postoperative sCyC levels strongly associated with AKI. After multivariable adjustment, the highest quartile of sCyC was associated with 13.1 – higher odds of AKI, compared with the lowest quartile. Elevated 10 h sCyC levels associated with longer hospital stay, longer intensive care unit stay and duration of mechanical ventilation. The addition of 10 h sCyC improved model discrimination for AKI (AUC 0.81). Conclusions: AKI following cardiac surgery was identified using KDIGO criteria in around one fourth of the patients. These patients had significantly increased morbidity and mortality. When added to prediction model, 10 h sCyC may enhance the identification of patients at higher risk of AKI, providing a readily available prognostic marker. [ABSTRACT FROM AUTHOR]

Published
2020
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44. Prognostic Value of the Delivery Dialysis Dose on Twice-Weekly Hemodialysis Patients

Author

Fan, Qichen, primary, Yan, Yucheng, additional, Gu, Leyi, additional, He, Liqun, additional, Chen, Nan, additional, Jiang, Gengru, additional, Yuan, Li, additional, Xue, Jun, additional, Zhang, Yun, additional, Ma, Jun, additional, Jin, Huimin, additional, Yuan, Weijie, additional, Guo, Zhiyong, additional, Guo, Lili, additional, Wang, Niansong, additional, Zhang, Wei, additional, Ye, Zhibin, additional, Mao, Peiju, additional, Pi, Xiaoling, additional, Lu, Renhua, additional, Zhu, Mingli, additional, Zhang, Weiming, additional, Ni, Zhaohui, additional, Qian, Jiaqi, additional, and Pang, Huihua, additional

Published
2017
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45. The Incidence Prognosis and Risk Factors of Cognitive Impairment in Maintenance Haemodialysis Patients.

Author

Lu, Renhua, Xu, Chenqi, Li, Yan, Yu, Ling, Shao, Xinghua, Xie, Kewei, Gu, Jiaqi, Yu, Zanzhe, Yan, Yucheng, Guan, Yangtai, Ni, Zhaohui, Ronco, Claudio, and Gu, Leyi

Subjects
UNILATERAL neglect, DISEASE risk factors
Abstract

Objective: To investigate the incidence and the prognosis of cognitive impairment (CI) and to find out the risk factors associated with the outcome in maintenance haemodialysis (MHD) patients. Methods: Enrolled the patients who met the criteria as below: MHD (≥3 months) patients before July 2014, ≥18 years old and could carry on the cognitive function test (Montreal Cognitive Assessment [MoCA]). All enrolled patients were divided into 2 groups: CI group (MoCA < 26) and non-CI group (MoCA ≥26). All patients were followed up for 36 months. The incidence, demography data, medical history, haemodialysis data, laboratory examination and prognosis of CI in haemodialysis patients were prospectively compared and analyzed. Multivariate logistic regression analysis was used to investigate the risk factors of CI. Kaplan-Meier survival curve was used for survival analysis. Results: In the present study, 219 patients were enrolled. The ratio of male to female was 1.46: 1. Age was 60.07 ± 12.44 and dialysis vintage was 100.79 ± 70.23 months. One hundred thirteen patients' MoCA scores were lower than 26 were divided into CI group. Education status (OR 3.428), post-dialysis diastolic pressure (OR 2.234) and spKt/V (OR 1.982) were independent risk factors for CI in MHD patients. During the follow-up period, 15 patients died (13.2%) in the CI group and 5 died (4.72%) in the non-CI group (p < 0.05). The Kaplan-Meier survival curve analysis showed that the survival rate of patients with CI was lower than that of non-CI group in MHD patients during 3 years follow-up (p = 0.046). Conclusion: CI is one of the most common complications in MHD patients. The mortality is high in patients who had CI. Education status, post-dialysis diastolic pressure and spKt/V are independent risk factors for CI in MHD patients. [ABSTRACT FROM AUTHOR]

Published
2019
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46. Scutellaria baicalensisPolysaccharide-Mediated Green Synthesis of Smaller Silver Nanoparticles with Enhanced Antimicrobial and Antibiofilm Activity

Author

Yan, Yucheng, Li, Guofeng, Su, Mingming, and Liang, Hao

Abstract

Silver nanoparticles (AgNPs) have attracted widespread attention in multidrug-resistant bacterial infections. However, the application of AgNPs synthesized by conventional methods is restricted by its high costs, toxicity, and poor stability. Herein, a water-soluble polysaccharide (Scutellaria baicalensispolysaccharide, SBP) rich in reducing sugars was used as both the reductant and stabilizer to greenly synthesize spherical AgNPs@SBP with smaller particle sizes (11.18 ± 2.50 nm) and higher negative zeta potential (−23.05 ± 2.76 mV), which was favorable to enhance its antimicrobial activity and improve pH and thermal stability. Besides, SBP facilitated the adhesion and penetration of AgNPs@SBP to methicillin-resistant Staphylococcus aureus(MRSA) and carbapenem-resistant Escherichia coli(CREC), thus significantly enhancing its antibacterial activity (increased by 32-fold and 64-fold, respectively). Likewise, AgNPs@SBP at a low concentration (7.8 μg/mL) could effectively penetrate and inhibit nearly 90% of MRSA and CREC biofilm formation. Antimicrobial mechanism studies showed that AgNPs@SBP could lead to more severe cell membrane damage and genetic material leakage by upregulating reactive oxygen species and depolarizing mitochondrial membrane potential, ultimately resulting in the apoptosis of bacteria. Overall, the wrapping of SBP significantly enhanced the antibacterial and antibiofilm activity of AgNPs, which possessed great potential in the prevention and treatment of multidrug-resistant bacterial infections.

Published
2024
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