Search

Your search keyword '"Zheng, Rongqin"' showing total 9 results
Start Over Author "Zheng, Rongqin" Journal radiology
9 results on '"Zheng, Rongqin"'

1. Multiparametric US for Identifying Metabolic Dysfunction–associated Steatohepatitis: A Prospective Multicenter Study

Author

Liu, Fangyi, primary, Bi, Mingsen, additional, Jing, Xiang, additional, Ding, Hong, additional, Zeng, Jie, additional, Zheng, Rongqin, additional, Chen, Yaqing, additional, Wang, Wenping, additional, Xie, Xiaoyan, additional, Mi, Chengrong, additional, Chen, Man, additional, Cheng, Wen, additional, Zhang, Shuhua, additional, Wang, Zhanbo, additional, Zhang, Chunquan, additional, Zhou, Hongyu, additional, Cheng, Zhigang, additional, Han, Zhiyu, additional, Yu, Jie, additional, and Liang, Ping, additional

Published
2024
Full Text
View/download PDF

7. Liver Fibrosis with Two-dimensional US Shear-Wave Elastography in Participants with Chronic Hepatitis B: A Prospective Multicenter Study

Author

Gao, Yongyan, primary, Zheng, Jian, additional, Liang, Ping, additional, Tong, Minghui, additional, Wang, Jiabing, additional, Wu, Changjun, additional, He, Xin, additional, Liu, Changzhu, additional, Zhang, Shumei, additional, Huang, Liping, additional, Jiang, Tian’an, additional, Cheng, Chao, additional, Meng, Fankun, additional, Mu, Xiaojie, additional, Lu, Yongping, additional, Li, Yunyan, additional, Ai, Hong, additional, Qiao, Xudong, additional, Xie, Xiao-Yan, additional, Wang, Wei, additional, Yin, Li-ping, additional, Wu, Yi-yun, additional, and Zheng, Rongqin, additional

Published
2018
Full Text
View/download PDF

9. Ultrasensitive US Microvessel Imaging of Hepatic Microcirculation in the Cirrhotic Rat Liver.

Author

Zhang W, Huang C, Yin T, Miao X, Deng H, Zheng R, Ren J, and Chen S

Subjects
Rats, Animals, Microcirculation, Rats, Sprague-Dawley, Liver Cirrhosis diagnostic imaging, Liver Cirrhosis pathology, Liver pathology, Microvessels diagnostic imaging, Microvessels pathology
Abstract

Background Liver microcirculation dysfunction plays a vital role in the occurrence and development of liver diseases, and thus, there is a clinical need for in vivo, noninvasive, and quantitative evaluation of liver microcirculation. Purpose To evaluate the feasibility of ultrasensitive US microvessel imaging (UMI) in the visualization and quantification of hepatic microvessels in healthy and cirrhotic rats. Materials and Methods In vivo studies were performed to image hepatic microvasculature by means of laparotomy in Sprague-Dawley rats (five cirrhotic and five control rats). In vivo conventional power Doppler US and ex vivo micro-CT were performed for comparison. UMI-based quantifications of perfusion, tortuosity, and integrity of microvessels were compared between the control and cirrhotic groups by using the Wilcoxon test. Spearman correlations between quantification parameters and pathologic fibrosis, perfusion function, and hepatic hypoxia were evaluated. Results UMI helped detect minute vessels below the liver capsule, as compared with conventional power Doppler US and micro-CT. With use of UMI, lower perfusion indicated by vessel density (median, 22% [IQR, 20%-28%] vs 41% [IQR, 37%-46%]; P = .008) and fractional moving blood volume (FMBV) (median, 6.4% [IQR, 4.8%-8.6%] vs 13% [IQR, 12%-14%]; P = .008) and higher tortuosity indicated by the sum of angles metric (SOAM) (median, 3.0 [IQR, 2.9-3.0] vs 2.7 [IQR, 2.6-2.9]; P = .008) were demonstrated in the cirrhotic rat group compared with the control group. Vessel density ( r = 0.85, P = .003), FMBV ( r = 0.86, P = .002), and median SOAM ( r = -0.83, P = .003) showed strong correlations with pathologically derived vessel density labeled with dextran. Vessel density ( r = -0.81, P = .005) and median SOAM ( r = 0.87, P = .001) also showed strong correlations with hepatic tissue hypoxia. Conclusion Contrast-free ultrasensitive US microvessel imaging provided noninvasive in vivo imaging and quantification of hepatic microvessels in cirrhotic rat liver. © RSNA, 2022 Supplemental material is available for this article. See also the editorial by Fetzer in this issue.

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results