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