title: [Diagnostic value of intraluminal contrast enhanced ultrasonography in evaluation of gastrointestinal stromal tumors].
abstract: The aim of the present study was to investigate the diagnostic value of the contrast-enhanced ultrasonography for gastrointestinal stromal tumors (GISTs). The conventional transabdominal ultrasonography and contrast-enhanced ultrasonography using an intraluminal contrast agent were performed in 66 cases. The different diagnostic value between conventional transabdominal ultrasonography and contrast-enhanced hydrocolon ultrasonography was compared, including the depiction ratio and location accuracy. The morpholpgical features of GISTs were observed. The sensitivity of the contrast-enhanced hydrocolon ultrasonography in the depiction of the GISTs (57/66, 86.4%) was higher than that of the conventional transabdominal ultrasonography(33/66, 50%, P<0. 05). Furthermore, the accuracy of the contrast-enhanced ultrasonography in the location of the GISTs (52/57, 91. 2%) was higher than that of the conventional transabdominal ultrasonography (13/33, 39. 4%, P<0. 05). The GISTs with higher or lower risk have different ultrasonic features. The contrast-enhanced ultrasonography was a more valuable diagnostic method for GIST than the conventional transabdominal ultrasonography.
authors.affiliation: Department of Ultrasound, West China Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Zhuang
authors.forename: Mingzhi
authors.initials: M
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Lei
authors.forename: Qiong
authors.initials: Q
authors.lastname: Zhang
authors.forename: Zhaoxia
authors.initials: Z
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Xia
authors.forename: Yan
authors.initials: Y
authors.lastname: Luo
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage; D019160:Endosonography / Q000379:methods*; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging*; D046152:Gastrointestinal Stromal Tumors / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D003287:Contrast Media