Abstract：Objective To investigate the effects of MSSCT (Multi-slice Spiral Computerized Tomography) in diagnosing GISTs (Gastrointestinal Stromal Tumors). Methods Both non-contrast-enhanced and enhanced CT scanning results of 23 GIST patients who were confirmed through surgical operations and immunohistochemistry were retrospectively analyzed. Pathological manifestations of GISTs were taken as the control group for comparison with CT scanning results. Results Among all the cases, most were found solitary; 2 occurred in the esophagus; 9 in the stomach; 1 in the duodenum; 3 in the small intestine;1 in the colon; 7 outside the gastrointestinal tract. Non-contrast-enhanced CT scanning displayed the features of GISTs as slightly-low-density or equal-density soft tissues inside and outside the cavity. With deployment of enhanced CT scanning, there were 6 cases identified to be benign with the characteristics involving the diameter of tumors＜3 cm, round or round-like shapes, smooth edges, even density and uniform enhancement (CT value was increased by 10 to 35 HU); slightly malignant tumors were revealed in 5 patients as diameter＜2.5 to 6cm, round or round-like shapes, smooth edges, averagely uniform density and moderate enhancement (The increment in the value of CT was 25 to 55HU); 12 cases showed the signs of relatively large tumors (Diameter＜4.5 to 20 cm), lobulated shapes, visible interior cystic necroses and calcification, obviously uneven density as well as visible metastases and apparent enhancement (The increase of 45 to 80 HU could be obtained in the CT value) and were identified to be malignant. Through statistical analysis of the correlation between the CT features (including locations, sizes, shapes, density and enhanced features) and the nature of tumors (benignancy or malignancy), the χ2 values were 8.74, 17.66, 22.77, 18.5 and 26.45 respectively with statistical differences (P<0.05). Conclusion MSSCT presented its great capability for clear demonstrations of tumors in the aspects of their numbers, locations, sizes, shapes, edge, density and enhanced features, which contributed to a remarkable improvement in detection and accurate diagnosis of GISTs and was of fundamental significance in relevant clinical surgeries and treatment.
王牧，杨春霞，王书智，范春瑛，卢玲铨，吴前芝. 多排螺旋CT对胃肠道间质瘤的诊断价值[J]. 中国医疗设备, 2013, 28(11): 158-160.
WANG Mu, YANG Chun-xia, WANG Shu-zhi, FAN Chun-ying, LU Ling-quan, WU Qian-zhi. Effects of MSSCT in Diagnosing GISTs. China Medical Devices, 2013, 28(11): 158-160.
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