影像诊断与介入放射学
影像診斷與介入放射學
영상진단여개입방사학
JOURNAL OF DIAGNOSTIC IMAGING AND INTERVENTIONAL RADIOLOGY
2014年
6期
466-469
,共4页
章绪辉%全显跃%路世龙%黄凡衡
章緒輝%全顯躍%路世龍%黃凡衡
장서휘%전현약%로세룡%황범형
前列腺癌%T2加权成像%磁共振成像%动态增强%Gleason评分
前列腺癌%T2加權成像%磁共振成像%動態增彊%Gleason評分
전렬선암%T2가권성상%자공진성상%동태증강%Gleason평분
Prostate cancer%T2 Weight imaging%Magnetic resonance imaging%Dynamic enhancement%Gleason scale
目的探讨3.0 T MR动态增强成像(DCE-MRI)在前列腺癌诊断中的应用价值。方法收集疑诊前列腺癌者75例,所有患者均行T2 WI和DCE-MRI检查。分析比较T2 WI和DCE-MRI对前列腺癌诊断敏感性、特异性和准确性的差异,并分析DCE-MRI对前列腺癌的检出率和Gleason评分的相关性。结果前列腺癌患者44例,T2 WI和DCE-MRI对前列腺癌诊断的敏感性、特异性和准确性分别为64%和91%、58%和77%、61%和85%。DCE-MRI诊断敏感性和准确性明显高于T2 WI(P<0.01),而特异性未见明显高于T2 WI(P>0.05)。DCE-MRI对高分化组Gleason评分<7分的前列腺癌检出率明显低于对中低分化组Gleason评分≥7分的前列腺癌(P<0.05)。结论和T2 WI相比,3.0 T DCE-MRI能明显提高对前列腺癌的诊断敏感性和准确性。而且,DCE-MRI更容易检出中低分化的前列腺癌。
目的探討3.0 T MR動態增彊成像(DCE-MRI)在前列腺癌診斷中的應用價值。方法收集疑診前列腺癌者75例,所有患者均行T2 WI和DCE-MRI檢查。分析比較T2 WI和DCE-MRI對前列腺癌診斷敏感性、特異性和準確性的差異,併分析DCE-MRI對前列腺癌的檢齣率和Gleason評分的相關性。結果前列腺癌患者44例,T2 WI和DCE-MRI對前列腺癌診斷的敏感性、特異性和準確性分彆為64%和91%、58%和77%、61%和85%。DCE-MRI診斷敏感性和準確性明顯高于T2 WI(P<0.01),而特異性未見明顯高于T2 WI(P>0.05)。DCE-MRI對高分化組Gleason評分<7分的前列腺癌檢齣率明顯低于對中低分化組Gleason評分≥7分的前列腺癌(P<0.05)。結論和T2 WI相比,3.0 T DCE-MRI能明顯提高對前列腺癌的診斷敏感性和準確性。而且,DCE-MRI更容易檢齣中低分化的前列腺癌。
목적탐토3.0 T MR동태증강성상(DCE-MRI)재전렬선암진단중적응용개치。방법수집의진전렬선암자75례,소유환자균행T2 WI화DCE-MRI검사。분석비교T2 WI화DCE-MRI대전렬선암진단민감성、특이성화준학성적차이,병분석DCE-MRI대전렬선암적검출솔화Gleason평분적상관성。결과전렬선암환자44례,T2 WI화DCE-MRI대전렬선암진단적민감성、특이성화준학성분별위64%화91%、58%화77%、61%화85%。DCE-MRI진단민감성화준학성명현고우T2 WI(P<0.01),이특이성미견명현고우T2 WI(P>0.05)。DCE-MRI대고분화조Gleason평분<7분적전렬선암검출솔명현저우대중저분화조Gleason평분≥7분적전렬선암(P<0.05)。결론화T2 WI상비,3.0 T DCE-MRI능명현제고대전렬선암적진단민감성화준학성。이차,DCE-MRI경용역검출중저분화적전렬선암。
Objective To evaluate the diagnostic accuracy of 3 T dynamic contrast-enhanced MRI(DCE-MRI)for prostate cancer.Methods 75 patients with clinical suspicion of prostate cancer underwent T2-weighted MR imaging(T2WI)and DCE-MRI.The sensitivity,specificity and accuracy of T2WI and DCE-MRI for diagnosing prostate cancer were determined.The relationship between Gleason score and prostate cancer detection on DCE-MRI was also evaluated.Results Of 75 patients,prostate adenocarcinoma was confirmed histopathologically in 44.The sensitivity and accuracy of DCE-MRI(91%,85%)were significantly (P<0.01)higher than those of T2WI(64%,61%).The specificity of DCE-MRI(77%)was not significantly(P>0.05)higher than that of T2WI(58%).The detection rate for Gleason 4-6 cancers was significantly lower than that for Gleason 7-9 cancers(P<0.05). Conclusion 3 T DCE-MRI is superior to T2WI in prostate cancer detection and can detect more aggressive tumors.