Objective To study the color Doppler ultrasound image characteristics and ultrasonic diagnosis classification of Budd-Chiari syndrome (BCS),so as to facilitate the treatment choice.Methods The clinical material of 126 BCS patients were retrospectively analyzed.All patients were proved by angiography,intervention or surgical treatment,and were classified according to the main color Doppler ultrasound images.Results According to the image characteristics of color Doppler ultrasound,BCS patients were divided into eight types:type Ⅰ,incomplete membrane of inferior vena cava in 30 cases; type Ⅱ,complete membrane of inferior vena cava in 3 cases;type Ⅲ,stenosis of inferior vena cava in 8 patients;type Ⅳ,inferior vena cava obstruction in 3 patients;type Ⅴ,stenosis of big hepatic vein in 20 cases;type Ⅵ,big hepatic vein obstruction in 15 cases; type Ⅶ,extensive obstruction of small hepatic vein in 9 cases; type Ⅷ,38 cases of mixed lesions.Conclusions Color Doppler ultrasound can display the stenosis or obstruction of the inferior vena cava,hepatic vein with property,position,degree and the hemodynamic changes,which are accurate and reliable to the diagnosis and classification of BCS.

Objective To analyze the CT signs of acute blunt or penetrating intestinal injury,and to improve the diagnostic accuracy of multi spiral CT for intestinal injury.Methods The CT and clinical data of 63 patients with intestinal injury confirmed by clinical surgical exploration who underwent emergency CT scan were collected,and the CT findings and surgical findings were comparatively analyzed.Results There were 63 cases of intestinal injury,of which 26 cases were complicated with mesenteric injury.The direct CT signs of intestinal injury included intestinal wall thickening sign and intestinal discontinuity sign,which accounted for 64%(40/63)and 17%(10/63),respectively.The indirect CT signs of intestinal injury included intraperitoneal/retroperitoneal gas sign,intraperitoneal/retroperitoneal effusion sign,intramural air,and portal venous gas,which accounted for 72%(45/63),88%(55/63),7%(5/63)and 5%(3/63),respectively.Conclusion Recognizing the CT signs of intestinal injury,such as intestinal wall thickening sign,intestinal discontinuity sign,intraperitoneal/retroperitoneal gas sign,intraperitoneal/retroperitoneal effusion sign,intramural air,and portal venous gas can help to make the early and correct diagnosis of intestinal injury if combined with clinical practice.