Abstract：Objective: To observe the blood distribution and blood flow state of accessory hepatic veins（AHV） by ultrasound. Methods: Eight hundred normal cases were chosen randomly for study. Ultrasound was carried out in vertical section at xiphoid process, cross section at middle abdomen, and coronary section at the waist to detect the presence of AHV. The function site, number of AHV, caliber, flow velocity and the angle between AHV and IVC were investigated. Result: There were 568 AHVs in 490 of the 800 cases, with an average of (0.80±0.38)branch?蛐case(range 0～3), average caliber is (0.35±0.16)cm. One branch of AHV has been showed in 343 cases(70%). Two branches of AHV have been showed in 120 cases(24.5%). Three branches of AHV have been showed in 27 cases(5.5%). There were 298 of inferior right hepatic veins in 230 cases. The average caliber was (0.40±0.19)cm, and 270 caudate veins were found. The average caliber was (0.26±0.18)cm. Most of the angle between IVC and AHV are right angle or close to right angle(89%, 505/568). The average caliber was (0.36±0.17)cm. A small part of them were acute angle(11%, 63/568), average caliber was (0.26±0.12)cm. The Doppler form is double direction three peak, the average speed is (12±4)cm/s. Conclusion: Ultrasound can display AHV in its physiologic condition. It is important for liver surgery, important for classification, as well as for the therapy of Budd-Chiari syndrome.
2007, Vol. 18 
