半傅里叶采集单激发快速自旋回波扩散加权成像在中耳胆脂瘤诊断中的价值

发布时间：2018-08-30 17:36

【摘要】：目的对照平面回波扩散加权序列及病理结果评估半傅里叶采集单激发快速自旋回波扩散加权成像(HASTE-DWI)在中耳胆脂瘤诊断中的价值。方法临床怀疑中耳胆脂瘤患者共37例在术前行1.5 T磁共振检查,同时采用常规平面回波扩散加权成像(EPI-DWI)和HASTE-DWI。由两名影像科医师分别对图像进行独立诊断,将EPI-DWI以及HASTE-DWI诊断结果分别与手术记录及病理结果相对照,分别得出其敏感性、特异性、阳性预期值和阴性预期值,并两两比较。结果 37例中,胆脂瘤患者共24例,EPI-DWI诊断正确18例,假阳性3例,假阴性6例,敏感性为75%,特异性为76.9%,阳性预期值为85.7%,阴性预期值为62.5%;HASTE-DWI诊断正确22例,假阳性1例,假阴性2例,敏感性、特异性、阳性预期值及阴性预期值分别为91.7%、92.3%、95.7%、85.7%。两种序列诊断中耳胆脂瘤差异无统计学意义(P0.05)。结论 HASTE-DWI序列在中耳胆脂瘤的诊断中具有较高的应用价值。
[Abstract]:Objective to evaluate the value of half Fourier acquisition single shot fast spin echo diffusion weighted imaging (HASTE-DWI) in the diagnosis of middle ear cholesteatoma. Methods A total of 37 patients with suspected middle ear cholesteatoma were examined with 1.5T MRI before operation. Conventional planar echo diffusion-weighted imaging (EPI-DWI) and HASTE-DWI. were used simultaneously. The results of EPI-DWI and HASTE-DWI were compared with the surgical records and pathological results, and the sensitivity, specificity, positive expected value and negative expected value were obtained, and compared with each other. Results among the 37 cases, 24 cases of cholesteatoma were diagnosed correctly on EPI-DWI, 3 cases were false positive, 6 cases were false negative, sensitivity was 75, specificity was 76.9T, positive predictive value was 85.7 and negative predictive value was 62.5% HASTE-DWI in 22 cases, false positive in 1 case. The sensitivity, specificity, positive expected value and negative expected value of false negative in 2 cases were 91.7% and 92.7%, respectively. There was no significant difference between the two sequences in the diagnosis of middle ear cholesteatoma (P0.05). Conclusion HASTE-DWI sequence is valuable in the diagnosis of middle ear cholesteatoma.
【作者单位】：上海市第一人民医院分院放射科;
【分类号】：R445.2;R764.21

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