原发性小肠恶性间质瘤B超和CT诊断的影像表现分析  

Imaging findings of primary malignant stromal tumors in small intestine by B-ultrasound and CT

作　　者：王晶晶 李娜 WANG Jing-jing;LI Na(Department of Imaging,No.215 Hospital of Shaanxi Nuclear Industry,Xianyang 712000,China)

机构地区：[1]陕西省咸阳市核工业215医院功能科,咸阳712000

出　　处：《中国肿瘤临床与康复》2021年第3期310-312,共3页Chinese Journal of Clinical Oncology and Rehabilitation

摘　　要：目的探讨原发性小肠恶性间质瘤患者行B超和CT诊断的影像表现及价值。方法选取2017年1月至2020年1月间陕西省咸阳市核工业215医院收治的102例原发小肠间质瘤患者,患者均行B超和CT检查,获得详细的影像资料,以手术病理结果为标准,良性45例,恶性57例,评价两种方法检出率及良恶性鉴别价值。结果CT诊断对<2.0 cm和2.0~3.0 cm原发小肠间质瘤检出率分别为95.2%和100.0%及总检出率98.0%,均高于B超诊断的相应检出率73.8%、85.7%和83.3%,差异均有统计学意义(均P<0.05)。B超诊断原发小肠恶性间质瘤敏感性88.0%、特异性82.0%、鉴别准确率81.2%和诊断准确率67.6%均低于CT诊断95.6%、94.5%、95.0%和93.1%,差异均有统计学意义(均P<0.05)。B超诊断32例呈现强回声的中低水平回声,外形不规则,5例内部回声不均、肿瘤内坏死液化。CT诊断100例观察到大小不等的、圆形、类圆形、分叶状或不规则软组织肿块影,增强扫描41例呈现肿块不均匀强化,囊性区域和低密度坏死范围大。结论在原发性小肠恶性间质瘤诊断中行B超和CT诊断均具有检出价值,其中CT影像表现更加详细,且对良恶性鉴别准确率高,实现对原发小肠恶性间质瘤准确检出,为治疗提供可靠依据,值得推广应用。Objective To investigate the imaging findings and significance of primary malignant gastrointestinal stromal tumors by B-ultrasound and computed tomography(CT).Methods A total of 102 patients with primary gastrointestinal stromal tumors admitted to No.215 Hospital of Shaanxi Nuclear Industry were selected from January 2017 to January 2020.All of them underwent B-ultrasound and CT examinations and detailed imaging data were obtained.Using surgical results and pathological results as references,45 patients had benign tumors and 57 patients had malignant tumors.The detection rate of the two examinations and the differentiation value for benign and malignant tumors were evaluated.Results The detection rate of CT for primary gastrointestinal stromal tumors of<2.0 cm and 2.0 cm to 3.0 cm was 95.2 and 100.0%,respectively and the overall detection rate was 98.0%,which was significantly higher than 73.8%,85.7%and 83.3%,respectively of B-ultrasound(all P<0.05).The sensitivity,specificity,differential accuracy rate and diagnostic accuracy rate was 88.0%,82.0%,81.2%and 67.6%,respectively for B-ultrasound diagnosis,which was lower than 95.6%,94.5%,95.0%and 93.1%,respectively for CT diagnosis(all P<0.05).Strong echo,especially low-medium-level echo,and irregular appearance were discovered in 32 patients by B-ultrasound.Uneven internal echo and liquefaction of tumor necrosis were discovered in 5 patients.Round,oval,lobulated or irregular soft tissue mass shadows of different sizes were observed in 100 patients by CT.Enhanced scanning showed uneven mass enhancement and a cystic area and a low density necrosis area with large necrosis range were dis-covered in 41 patients.Conclusion Both B-ultrasound and CT are valuable for the diagnosis of primary malignant gastrointestinal stromal tumors.CT imaging is detailed,and the accuracy of it for the differentiation of benign and malignant tumors is high,and the accurate detection of primary malignant gastrointestinal stromal tumors can be achieved.It provides a reliable basis for the tr

关 键 词：原发小肠间质瘤 B超 CT 影像表现 良恶性 

分 类 号：R735.3[医药卫生—肿瘤]