多层螺旋CT用于胃肠道间质瘤诊断的临床研究

摘要

Objective:To evaluate the value of multi-slice spiral CT in the clinical diagnosis of gastrointestinal stromal tumors(GIST).Methods:Twenty-five patients with gastrointestinal stromal tumors who were hospitalized were examined by multi-slice spiral CT before and after multi-plane spiral CT scan.The findings of the diagnosis were jointly obtained by physicians and compared with histopathological diagnosis of surgical tumors.Results:13 cases of malignant GIST,6 cases of potential malignant GIST and 6 cases of benign GIST were found in this group. The accuracy of preoperative CT in diagnosing GIST was 92.00%.In GIST,there were 13 cases(52.00%)in stomach,6 cases(24.00%)in duodenum,2 cases(8.00%)in gastrointestinal tract and 4 cases Submucosal type in 12 cases(12.00%),intramural type in 12 cases(48.00%),and extra-gastrointestinal tract in 4 cases(16.00%), irregular shape in 17 cases(68.00%),circular or nearly circular in 8 cases(32.00%).Conclusion:Multi-slice spiral CT is used in the clinical diagnosis of GIST,which is of great significance to the qualitative and localization of the tumor.It is helpful to judge the benign and malignant tumor and provide a powerful data for the development of the surgical plan.%目的:分析多层螺旋CT 检查在胃肠道间质瘤(GIST)临床诊断中的价值.方法:对25例胃肠道间质瘤患者进行术前多层螺旋CT 检查,通过行平扫和增强扫描,构建多平面影像,经两位医师共同得出诊断结果,并与手术肿瘤组织病理学诊断结果进行比较.结果:本组中恶性GIST 13例,潜在恶性GIST 6例,良性GIST6例,而术前CT 诊断GIST 良恶性准确率为92.00%.GIST 中,胃13例(52.00%),十二指肠6例(24.00%),胃肠道外2例(8.00%),空回肠4例(16. 00%);肿瘤直径≥5 cm者15例(60.00%),<5 cm者10例(40.00%);黏膜下型6例(24.00%),浆膜下型3例(12.00%),肌壁间型12例(48.00%),胃肠道外4例(16.00%);不规则形17例(68. 00%),圆形或近圆形8例(32.00%).结论:多层螺旋CT 用于GIST 的临床诊断,对肿瘤的定性、定位有重要意义,有利于判断肿瘤的良、恶性,为手术方案的制定提供有力资料.