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Efficacy of quantitative analysis for differentiating pancreatic solid lesions using contrast-enhanced endoscopic ultrasonography

The bulletin of the Yamaguchi Medical School Volume 68 Issue 1-2

Aim: To evaluate the efficacy of quantitative analysis for differentiating pancreatic ductal adenocarcinoma (PDAC) and inflammatory pancreatic masses (IPM) using time intensity curve (TIC) analysis based on contrast-enhanced endoscopic ultrasonography (CE-EUS). Methods: We reviewed 89 patients who had undergone CE-EUS for pancreatic solid lesions at our department between August 2012 and January 2016. CE-EUS images were recorded for 2 minutes after injection of the contrast agent. The diagnostic abilities of the enhanced patterns and TIC analysis were assessed. Results: The enhanced patterns of PDAC were mainly hypovascular and heterogeneous (66/77), while IPM were mainly isovascular and homogeneous (6/12). In PDAC, sensitivity was 77.9%, specificity 83.3%, and accuracy was 78.7%. In TIC analysis, the intensity reduction rate was significantly different at 10 and 30 seconds after peak intensity. After creating a cutoff value (49%) based on the receiver operating characteristic curve for the intensity reduction rate after 30 seconds, diagnosing PDAC with TIC analysis had a sensitivity of 67.5%, specificity of 100%, and accuracy of 71.9%. Combining enhanced pattern analysis with TIC analysis had a sensitivity of 90.9%, pecificity of 83.3%, and accuracy of 89.9%. Conclusion: Combining TIC analysis with CE-EUS improved diagnostic accuracy when differentiating between PDAC and IPM.

A three-sector model : an analysis of fiscal and monetary policy

山口経済学雑誌 Volume 69 Issue 5

Creators : Umada Tetsuji Publishers : 山口大學經濟學會 Date Issued : 2021-01-31

An invited review following the Soujinkai Fujiu Memorial Award : development of stent-enhanced 3d optical coherence tomography and its clinical application for coronary bifurcation lesions

The bulletin of the Yamaguchi Medical School Volume 68 Issue 1-2

Creators : Okamura Takayuki | Yano Masafumi Publishers : Yamaguchi University School of Medicine Date Issued : 2021

Titles of the masterʼs theses of the graduate school of humanities, 2020

山口大学文学会志 Volume 71

Publishers : 山口大學文學會 Date Issued : 2021-03-18

A Study of the commentaries on menfa (門法) in Xutongzhi Qiyinlue (續通志七音略)

山口大学文学会志 Volume 71

Creators : Tomihira Miwa Publishers : 山口大學文學會 Date Issued : 2021-03-18

An invited review following the Soujinkai Fujiu Memorial Award : emanation of several clinical practice guidelines based on basic and clinical research including surveillance projects in the field of pediatric infectious diseases and enlightenment on judicious use of antimicrobial drugs

The bulletin of the Yamaguchi Medical School Volume 68 Issue 1-2

Creators : Ouchi Kazunobu Publishers : Yamaguchi University School of Medicine Date Issued : 2021

Arthur Binard and Kiyoshi Tanimoto peace award : the role of picture books and real problems

山口大学文学会志 Volume 71

Creators : Hayashi Shin’ichi Publishers : 山口大學文學會 Date Issued : 2021-03-18

Identification and differentiation in the Hansen’s disease patient’s movements : a case study of Okinawa Airakuen

山口大学文学会志 Volume 71

Creators : Kuwahata Yoichiro Publishers : 山口大學文學會 Date Issued : 2021-03-18

A study of supports and the international exchange of the Junior Red Cross : based on the public information magazine of the post war period

山口大学文学会志 Volume 71

Creators : Yamaguchi Mutsumi Publishers : 山口大學文學會 Date Issued : 2021-03-18

Influence of Kiheitai for the establishment of the Kitakyusyu City Library

山口大学文学会志 Volume 71

Creators : Ito Tatsuya Publishers : 山口大學文學會 Date Issued : 2021-03-18

A study on “ura” and its structure of the hagi clan in the early and middle stages of the early modern period

山口大学文学会志 Volume 71

Creators : Ishida Shun Publishers : 山口大學文學會 Date Issued : 2021-03-18

Practice and application of a trading game in a university class