Characteristics of paraesophageal varices:A study with 64-row multidetector computed tomograghy portal venography

作     者：Li-Qin Zhao Wen He Guang Chen 

作者机构：Department of Radiology Beijing Friendship Hospital Capital Medical University Beijing 100050 China 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2008年第14卷第34期

页      面：5331-5335页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1006[医学-中西医结合] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 100106[医学-放射医学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：The Science Technology Program of Beijing Education Committee  No.KM200810025002 

主　　题：Computer tomograghy Portal venography, Paraesophageal varices Hepatic cirrhosis Portal hypertension 

摘      要：AIM:To identify the characteristics of morphology, loca- tion and collateral circulation involved in paraesophageal varices (para-EV) of portal hypertension patients with 64-row multidetector computed tomograghy (MDCT). METHODS: Fifty-two of 501 patients with portal hypertensive cirrhosis accompanied with esophageal varices were selected for 64-row MDCT examination af- ter the observation of para-EV. The CT protocol includ- ed unenhanced, arterial and portal phases with a slice thickness of 0.625 mm and a scanning field of 2 cm above the bifurcation to the lower edge of kidney. The CT portal venography (CTPV) was reformatted on AW4.3 workstation. The characteristics of origina- tion, location, morphology and collateral circulation in para-EV were observed. RESULTS: Among the 52 cases of para-EV, 50 showed the originations from the posterior branch of left gastric vein, while the others from the anterior branch. Fifty cases demonstrated their locations close to the esoph- ageal-gastric junction, and the other two cases were extended to the inferior bifurcation of the trachea. The circuitous pattern was observed in 16 cases, while reticulated pattern was seen in 36 cases. Collateral circulation identifi ed 4 cases of single periesophageal varices (peri-EV) communication, 3 cases of single hemiazygous vein, one case of single inferior vena cava, 41 cases of mixed type (collateral communica-tions of at least 2 of above mentioned types) and 3 cases of undetermined communications. Among all the cases, 43 patients showed the communications between para-EV and peri-EV, while hemiazygous vein (43 cases) and inferior vena cava (5 cases) were also involved. CONCLUSION: Sixty-four-row multidetector computed tomograghy portal venography could display the loca- tion, morphology, origin, and collateral types of para- EV, which provides important and referable information for clinical management and disease prognosis.