磁共振弥散加权成像在卵巢纤维瘤诊断中的应用

Application of Diffusion Weighted Imaging in the Diagnosis of Ovarian Fibroma

目的旨在探讨磁共振弥散加权成像(DWI)在卵巢纤维瘤诊断中的诊断价值对比分析。方法选取我院2015年10月-2016年11月收治的经手术或病理证实的卵巢纤维瘤患者43例作为研究对象,患者均行治疗前磁共振成像检查,包括T1WI、T2WI、DWI扫描,将磁共振平扫结合DWI扫描的检查结果与手术或病理检查结果进行分析对比。结果 43例患者中,MR平扫显示:肿瘤大小平均(5.98±3.11)cm,33个肿瘤呈较规则圆形或类圆形,5个肿瘤呈分叶形,5个肿瘤呈不规则形。6例边缘不光整,37例边缘光整。与病理结果对照,卵巢纤维瘤共43例,磁共振弥散加权成像扫描对浅基层肿瘤的诊断准确率95.35%,灵敏度为86.75%,阳性预测值为97.13%;磁共振弥散加权成像扫描对深基层肿瘤的诊断准确率为93.02%,灵敏度为95.86%,阳性预测值为86.63%。结论磁共振弥散加权成像扫描能清晰显示卵巢纤维瘤的影像特征,诊断准确率高,可为临床提高可靠影像学资料。

Objective To investigate the diagnostic value of magnetic resonance diffusion weighted imaging(DWI)in ovarian fibroma.Methods 43 patients with ovarian fibroma confirmed by operation or pathology in our hospital from October 2015 to November-2016 were selected as the research objects,all patients underwent magnetic resonance imaging before treatment,including T1 WI,T2 WI and DWI scan.The results of MRI scan combined with DWI scan were compared with the results of operation or pathological examination.Results In 43 patients,MR scan showed that the average tumor size was(5.98±3.11)cm,the 33 tumors were regular round or round shaped,5 tumors were divided into leaves,and 5 tumors were irregular.In 6 cases,the edges were not smooth and 37 cases were round.Compared with pathological findings,43 cases of ovarian fibroma,the diagnostic accuracy of magnetic resonance diffusion weighted imaging for superficial primary tumors was 95.35%,sensitivity was 86.75%,positive predictive value was 97.13%.The accuracy of MR diffusion weighted imaging in diagnosis of deep root tumors was 93.02%,sensitivity was 95.86%,and positive predictive value was 86.63%.Conclusion MR diffusion weighted imaging can clearly show the imaging features of ovarian fibroma,with high diagnostic accuracy,and can improve the reliable imaging data for the clinical.