Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Atlas of Human Body Ultrasound Scanning_ Methods and Diagnostic Applications ( PDFDrive ).pdf
Скачиваний:
147
Добавлен:
29.07.2022
Размер:
40.13 Mб
Скачать

232

M. Zhang

 

 

1.14.1\ Scanning Method

The patient should be on fast for 8–12 h. Subcostal scanning should be performed with the patient in a left lateral decubitus or supine position. Deep inspiration can make the liver move down as an acoustic window.

1.14.3\ Measuring Method and Normal

Measuring inner diameter of the portal vein and right portal vein. Generally portal vein diameter should be measured outside the porta hepatis and should be less than 1.3–1.4 cm; right portal vein should be less than 1.0 cm.

1.14.2\ Section Structure

Major areas: longitudinal section of the portal vein and right portal vein, gallbladder, inferior vena cava.

1.14.4\ Clinical Application Value

This is the standard scan of the porta hepatis, being used to observe the portal vein, right portal vein, and liver parenchymal near the porta hepatis.