多层螺旋CT诊断老年胃肠道间质瘤的价值

发布时间：2018-08-25 09:40

【摘要】：目的研究多层螺旋CT(MSCT)影像对老年胃肠道间质瘤(GIST)患者的诊断价值。方法选择接受治疗的老年GIST患者93例,同时选择同期接受体检的健康志愿者50例。对所有参与者进行MSCT和常规CT扫描,将MSCT扫描结果记为观察组和CT扫描结果记为对照组。对比两组诊断的准确度、特异性等,然后依据不同危险分级对观察组所有病患进行MSCT扫描结果对比。并采用Logistic回归性分析对影响老年GIST危险分级的影响因素。结果观察组诊断的准确度显著高于对照组,但两组在特异性、敏感性以及漏诊率等比较无显著差异。观察组处于低度的GIST病患表现为生长于胃部、内生型、5 cm、规则形、均匀强化及无系统脂肪浸润,中重度相反。根据Logistic回归性分析,将老年GISI危险分级作为因变量,将其他因素作自变量,筛选出6个影响因素,即:病灶位置、生长方式、大小、形态、强化方式、系统脂肪浸润。不同危险度GIST病患中通过MACT平扫、动脉期、静脉期扫描强度存在显著差异(均P0.05)。结论将MSCT应用于GIST的诊断中具有较高的准确度,并且在不同危险分级中相关特点对应准确。这能提高临床治疗的指导价值,适合推广应用。
[Abstract]:Objective to study the diagnostic value of multislice spiral CT (MSCT) imaging in elderly patients with gastrointestinal stromal tumor (GIST) (GIST). Methods 93 elderly GIST patients and 50 healthy volunteers were selected. MSCT and routine CT scans were performed on all participants, and MSCT scan results were recorded as observation group and CT scan results as control group. The accuracy and specificity of diagnosis were compared between the two groups, and the MSCT scan results of all patients in the observation group were compared according to different risk grades. Logistic regression analysis was used to analyze the risk factors affecting the elderly GIST risk classification. Results the accuracy of diagnosis in the observation group was significantly higher than that in the control group, but there was no significant difference in specificity, sensitivity and missed diagnosis rate between the two groups. In the observation group, the patients with low degree of GIST presented as follows: they grew in the stomach, the endophytic type was 5 cm, regular, homogeneous enhancement and no systematic fat infiltration, which was the opposite of the moderate and severe. According to Logistic regression analysis, elderly GISI risk classification was regarded as dependent variable and other factors as independent variables. Six influencing factors were selected, that is, location of lesion, growth mode, size, morphology, enhancement mode and systemic fat infiltration. There were significant differences in the intensity of MACT scan, arterial phase and venous phase in patients with different risk of GIST (P0.05). Conclusion the application of MSCT in the diagnosis of GIST has high accuracy, and the correlation characteristics in different risk grades are accurate. It can improve the guiding value of clinical treatment and is suitable for popularization and application.
【作者单位】：江阴市中医院影像科;江阴市人民医院医学影像科;南京军区南京总医院医学影像科;
【分类号】：R735;R730.44

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