Spectral Computed Tomography Imaging of Gastric Schwannoma and Gastric Stromal Tumor
Spectral Computed Tomography Imaging of Gastric Schwannoma and Gastric Stromal Tumor
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DOI：
10.1097/rct.0000000000000548
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发表时间：
2017-05-01
影响因子：
1.3
通讯作者：
Liu, Bin
中科院分区：
文献类型：
--
作者：
Liu, Jianli;Chai, Yanjun;Liu, Bin
目的：胃神经鞘瘤(GSS)和胃肠道间质瘤(GSTs)是大体相似的黏膜下肿瘤，但预后不同。方法：对兰州大学中国第二医院2013-05/2015-06收治的GS或GST患者进行回顾性研究。结果：12例GS患者(男性3例，女性9例，平均年龄47.0[11.5]岁)和20例GST患者(男性7例，女性13例，平均年龄54.7[9.9]岁)在70kev的动脉期(AP)有显著差异(P<；0.001)、70keV门脉相(PP)(P=0.002)、AP碘浓度、PP碘浓度、AP水浓度、光谱曲线AP斜率和PP斜率(均P&t；0.001)。结论：频谱CT对粘膜下肿瘤的无创性诊断有一定价值。
Objective: Gastric schwannomas (GSs) and gastrointestinal stromal tumors (GSTs) are grossly similar submucosal neoplasms with different prognoses. We explored the value of spectral computed tomography (CT) to distinguish between them.Methods: Patients diagnosed with GS or GST at Lanzhou University Second Hospital, China, between May 2013 and June 2015 were included retrospectively. The subjects underwent spectral CT examination before surgery and had histologically confirmed diagnosis of GS or GST.Results: Twelve patients with GS (3 men; 9 women; mean [SD] age, 47.0 [11.5] years) and 20 with GST (7 men; 13 women; mean [SD] age, 54.7 [9.9]) showed significant differences in terms of arterial phase (AP) at 70 keV (P < 0.001), portal phase (PP) at 70 keV (P = 0.002), AP iodine concentration, PP iodine concentration, AP water concentration, AP slope of spectral curve, and PP slope of spectral curve (all P < 0.001).Conclusions: Spectral CT may be useful for noninvasive diagnosis of submucosal tumors.