胃肠超声造影检查法对胃肠间质瘤的诊断价值

Diagnostic Value of Intraluminal Contrast Enhanced Ultrasonography in Evaluation of Gastrointestinal Stromal Tumors

随着胃肠造影超声检查的发展和应用,超声对于胃肠疾病的诊断范围得到了拓宽。本研究探讨了胃肠超声造影检查对于胃肠间质瘤(GIST)的诊断价值。共66例经手术病理证实的GIST病例被纳入,患者均接受常规经腹部超声检查机胃肠超声造影检查。研究者对两种检查方法对病变的发现率、定位病变的准确率及发现病变的大小差异进行比较;对不同风险度的GIST在胃肠超声造影检查中的声像图特点进行对比分析。结果表明,胃肠超声造影检查对GIST的检出的敏感性(57/66,86.4%)较常规经腹超声检查(33/66,50%)高(P<0.05)。胃肠超声造影检查法对于GIST定位能力较常规经腹超声检查强(定位准确率分别为52/57,91.2%及13/33,39.4%)。在胃肠超声造影检查下,可清楚观察GIST的影像学特征,较高风险度的GIST与较低风险度的GIST的影像学特征有差异。胃肠超声造影检查对GIST的诊断价值优于常规经腹部超声检查,GIST在胃肠超声造影检查中的影像学表现具有特征性。

The aim of the present study was to investigate the diagnostic value of the contrast-enhanced ultrasonogra- phy for gastrointestinal stromal tumors （GISTs）. The conventional transabdominal ultrasonography and contrast-en- hanced 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 morphological 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.