OU Guo-cheng

South China Agricultural University

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Xuemei Wang

Ningbo Institute of Industrial Technology

Chunmei Tao

China Medical University

Xuemei Wang

Beijing Ditan Hospital

Wenjing Zhao

China Medical University

Yanhong Que

First Hospital of China Medical University

Yanjun Liu

China Medical University

Huang Jianqing

Hainan University

Yan Wang

Tianjin Medical University

Ping Li

Fujian Medical University

Lu Kanju

South China Agricultural University

Cooperative Institutions

China Medical University

First Hospital of China Medical University

South China Agricultural University

Capital Medical University

Hainan University

Tianjin University

Jinan University

Chinese Academy of Sciences

Guangzhou Medical University

First Affiliated Hospital of Liaoning Medical University

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Comparison of quantitative parameters of contrast enhanced ultrasound in two sizes of region of interest in normal rabbit liver

Zhongguo yixue yingxiang jishu (2011)

OU Guo-cheng

Objective To compare the quantitative parameters of CEUS in two different sizes of ROI area in normal rabbit liver.Methods Fifteen New Zealand rabbits with normal liver underwent CEUS.Two different sizes of ROI were chosen,and the corresponding quantitative parameters(slope of increasing curve ,derived peak intensity ,time to peak ) were obtained and compared statistically.Results SIC,DPI and TTP were statistically different among liver parenchyma,hepatic artery and hepatic vein(P0.05),but SIC,DPI,TTP of the portal vein were not statistically different(P0.05).Conclusion A fixed size ROI area is suitable for the liver parenchyma,while ROI with the same area of cross-section area of hepatic artery,the hepatic vein and the portal vein should be used for these vasculars.

Liver parenchyma

Region of interest

Contrast-enhanced ultrasound

Parenchyma

Hepatic veins

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The application value of score by ultrasound elastography at fatty liver graduation

Journal of China Clinic Medical Imaging (2009)

OU Guo-cheng

Objective: The aim of this study was to investigate the application value of score by ultrasound elastography in grading fatty liver. Methods: Seventy-seven patients with fatty liver were enrolled, and 30 patients with proven healthy livers were used as control group. After all patients with conventional ultrasound scanning, and following ultrasound elastography scan, we scored patients with fatty liver in accordance with ultrasound elastography score criteria. Results: There was a high consistency between ultrasound elastography score and traditional ultrasound score (Kappa value=0.833). The sensitivity, specificity of fatty liver evaluated by ultrasound elastography were 96.1%, 93.3% respectively. Conclusion: Ultrasound elasticity imaging technique can be used as a more objective auxiliary examination method in grading fatty liver.

Ultrasound Elastography

Grading (engineering)

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STREPTOMYCES HYGROSCOPICUSにおけるグルタミン遺伝子の同定および大腸菌における発現【JST・京大機械翻訳】

Weishengwu Xuebao (2008)

Zengliang Ren Dongxu Zhang Meiying Yu Qingxin Zhao OU Guo-cheng

Streptomyces hygroscopicus

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Histogram of ultrasound in diagnosing and grading of fatty liver

Zhongguo yixue yingxiang jishu (2010)

Liang Sang Xuemei Wang OU Guo-cheng Liu Yan-jun

Objective To explore the value of the histogram of ultrasound in diagnosing and grading of fatty liver.Methods Ninety subjects were enrolled in normal group,light or moderate to severe fatty liver group(each n =30),respectively.All the subjects underwent histogram of ultrasound of the liver,kidney,spleen and right hepatic vein(RHV),and the ratio of histogram M value of different area were analyzed.Results Statistical differences of the ratio of histogram M value of anterior hepatic tissue of kidney and kidney(AntK)between normal group and two fatty liver groups were detected(P 0.05).The ratio of histogram M value of anterior hepatic tissue of RHV and RHV(AntV)between the normal group and moderate to severe fatty liver group,as well as the light and moderate to severe fatty liver group had statistical differences(P 0.05).When 0.97,0.78 were used respectively as the critical value of the ratio of histogram M value in diagnosing and grading of fatty liver at AntK and AntV,the sensitivity was all 80.00% and 80.00%,specificity was 85.00% and 70.00%,respectively.Conclusion The ratio of histogram M value of AntK,AntV can be used as the referent index in diagnosing and grading of fatty liver.

Grading (engineering)

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A comparative study between firefly and gray-scale imaging technology in thyroid calcification diagnosis.

OU Guo-cheng Xiong Yi Xuemei Wang

Objective To investigate the value of firefly technology in the diagnosis of thyroid calcification. Methods The thyroid nodules of 44 patients were examined with gray-scale imaging and firefly technology respectively before operation. The ultrasound images were compared and analyzed. Results Totally 73 nodules(5 malignant,68 benign)were surgically removed. In the 73 images of gray-scale technology,there were 15 nodules with micro-calcification(5 withgravel-likechange),17 nodules with thick-calcification,6 nodules with suspicious calcification,and 35 nodules without calcification. In the 73 images of firefly technology,23,17 and 33 nodules showed micro-calcification,thick-calcification and no calcification respectively. Conclusion The gray-scale imaging and firefly technology both have high detection rate of thyroid calcification,but the firefly technology can show the calcification more clearly,distinguish the suspicious calcification and exhibit the calcification which can not be identified by gray-scale imaging technology. The firefly technology is also sensitive to pseudo-calcification.

Thyroid Nodules

Imaging technology

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Ultrasound Features in 102 Cases with Ovarian Cancer

Journal of Oncology (2008)

OU Guo-cheng

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Transabdominal Ultrasound in Diagnosing Autoimmune Pancreatitis

Zhongguo Chaoshengyixue Zazhi (2011)

Yun-Fei Zhang OU Guo-cheng Xuemei Wang

Autoimmune Pancreatitis

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Development and test of aquacultural water quality monitoring system based on wireless sensor network

Nongye gongcheng xuebao (2013)

Huang Jianqing Weixing Wang Jiang Sheng Daozong Sun OU Guo-cheng

10.3969/j.issn.1002-6819.2013.4.023

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Preliminary Study on Quantitative Analysis of Fatty Liver by Ultrasound Elastography

Yinyan Li Xuemei Wang Yixia Zhang OU Guo-cheng

Objective To investigate the application value of the quantitative diagnosis of fatty liver by ultrasound elastography.Methods Seventy seven patients with fatty liver(mild,moderate and severe)were enrolled with 30 liver-disease-free patients as control group.The rate of blue areas and the thickness of prehepatic fat were measured by ultrasound elasticity imaging.Results Different characteristics of ultrasound elastography images appeared in different groups.The rate of the blue areas among the groups with fatty liver was of significant differences.Conclusion Under the examination of the ultrasound elastography,the ratio of blue to hot area can be regarded as a reference to quantify the fatty liver degree.

Ultrasound Elastography

Quantitative assessment

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Value of ultrasound in the diagnosis of ulcerative colitis

Zhongguo Yike Daxue xuebao (2005)

Chunmei Tao Xuemei Wang OU Guo-cheng

Objective: To study the value of ultrasound in the diagnosis of ulcerative colitis.Methods:Ultrasound examination was performed in 46 patients with clinically diagnosed ulcerative colitis, and the ultrasonic characteristics were observed. Results:The ultrasonic characteristics of ulcerative colitis were the thickening of intestinal wall with decreased echo, narrowing of intestinal lumen, and loss of gas in it. Conclusion:Ultrasound examination can be used as an assistant method to diagnose and evaluate the treatment of ulcerative colitis.

Lumen (anatomy)

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