Inter-observer variability of portal hemodynamics measured by Doppler ultrasound on three different locations of portal vein

Dar In Tai*, Seng Kee Chuah, Chien Lin Chen, Sing Kai Lo, Chi Sin Changchien, Ing Tzu Li

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

11 引文 斯高帕斯(Scopus)

摘要

Doppler ultrasound is a noninvasive modality for portal hemodynamic study. However, inter-observer variability has been observed. This study has investigated ways to produce less inter-observer variability. Doppler ultrasound portal vein hemodynamic studies were carried out by three well- trained specialists on 20 healthy hospital staff members. The intra-hepatic, first branch, right portal vein, the hilar portal vein, and the extra- hepatic portal vein were chosen for study. With respect to the diameter of portal veins, a significant inter-observer variability was found for the first branch right portal vein and the extra-hepatic portal vein, but not for the hilar portal vein. For maximal portal vein velocity studies, inter- observer variability was not found at any location. A significant failure rate was noted for the measurement of extrahepatic portal vein velocity. Only 8 volunteers had complete data from all of the three investigators. A significant variability was also noted for the average velocity of extrahepatic portal vein. We conclude that Doppler ultrasound hemodynamic studies of the hilar portal vein has the most acceptable inter-observer variability and thus should be used for longitudinal portal hemodynamic studies.

原文英語
頁(從 - 到)61-66
頁數6
期刊Journal of Clinical Ultrasound
24
發行號2
DOIs
出版狀態已出版 - 1996
對外發佈

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