中国CT和MRI杂志
中國CT和MRI雜誌
중국CT화MRI잡지
CHINESE JOURNAL OF CT AND MRI
2014年
8期
66-68,78
,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%磁共振成像%扩散加权成像%表观扩散系数图
前列腺癌%磁共振成像%擴散加權成像%錶觀擴散繫數圖
전렬선암%자공진성상%확산가권성상%표관확산계수도
Prostate Cancer%Magnetic Resonance Imaging%Diffusion-weighted Imaging%Apparent Diffusion Coefficient Maps
目的：探讨和比较不同b值DWI和ADC图在前列腺癌诊断中的应用价值。方法收集行前列腺MRI检查的前列腺癌疑诊患者62例，所有病例均以病理学诊断为金标准，研究对象均行不同b值DWI检查，分析比较不同b值DWI和ADC图对前列腺癌的诊断敏感性和特异性。结果前列腺癌患者35例。b=500s/mm2，DWI对前列腺癌的诊断敏感性和特异性分别为54.3%和70.4%；b=1000s/mm2，DWI和ADC图对前列腺癌的诊断敏感性和特异性分别为80.0%和77.8%、88.6%和85.2%。b=1000s/mm2时，DWI对前列腺癌的诊断敏感性、特异性均高于b=500s/mm2,其中敏感性存在统计学差异；当b=1000s/mm2时，ADC图对前列腺癌的诊断敏感性和特异性高于DWI，但均不存在统计学差异。结论当b=1000s/mm2时，DWI和ADC图对前列腺癌均有较高的诊断价值；而b=500s/mm2时，DWI对前列腺癌的诊断敏感性较差。
目的：探討和比較不同b值DWI和ADC圖在前列腺癌診斷中的應用價值。方法收集行前列腺MRI檢查的前列腺癌疑診患者62例，所有病例均以病理學診斷為金標準，研究對象均行不同b值DWI檢查，分析比較不同b值DWI和ADC圖對前列腺癌的診斷敏感性和特異性。結果前列腺癌患者35例。b=500s/mm2，DWI對前列腺癌的診斷敏感性和特異性分彆為54.3%和70.4%；b=1000s/mm2，DWI和ADC圖對前列腺癌的診斷敏感性和特異性分彆為80.0%和77.8%、88.6%和85.2%。b=1000s/mm2時，DWI對前列腺癌的診斷敏感性、特異性均高于b=500s/mm2,其中敏感性存在統計學差異；噹b=1000s/mm2時，ADC圖對前列腺癌的診斷敏感性和特異性高于DWI，但均不存在統計學差異。結論噹b=1000s/mm2時，DWI和ADC圖對前列腺癌均有較高的診斷價值；而b=500s/mm2時，DWI對前列腺癌的診斷敏感性較差。
목적：탐토화비교불동b치DWI화ADC도재전렬선암진단중적응용개치。방법수집행전렬선MRI검사적전렬선암의진환자62례，소유병례균이병이학진단위금표준，연구대상균행불동b치DWI검사，분석비교불동b치DWI화ADC도대전렬선암적진단민감성화특이성。결과전렬선암환자35례。b=500s/mm2，DWI대전렬선암적진단민감성화특이성분별위54.3%화70.4%；b=1000s/mm2，DWI화ADC도대전렬선암적진단민감성화특이성분별위80.0%화77.8%、88.6%화85.2%。b=1000s/mm2시，DWI대전렬선암적진단민감성、특이성균고우b=500s/mm2,기중민감성존재통계학차이；당b=1000s/mm2시，ADC도대전렬선암적진단민감성화특이성고우DWI，단균불존재통계학차이。결론당b=1000s/mm2시，DWI화ADC도대전렬선암균유교고적진단개치；이b=500s/mm2시，DWI대전렬선암적진단민감성교차。
Objective To explore and compare the value of DWI and ADC maps with different b values in the diagnosis of prostate cancer. Methods Sixty-two patients with clinical suspicion of prostate cancer were scanned with MRI, all cases were pathological diagnosis as the gold standard, and they underwent DWI examination with different b values. The sensitivity and specificity for the diagnosis of prostate cancer were evaluated by DWI and ADC maps. Results 35 patients were confirmed histopathologically to have prostate adenocarcinoma. DWI at a b-value of 500s/mm2 were found to have a sensitivity of 54.3% and a specificity of 70.4%. DWI at a b-value of 1000s/mm2 were found to have a sensitivity of 80.0% and a specificity of 77.8%. ADC maps at a b-value of 1000s/mm2 were found to have a sensitivity of 88.6% and a specificity of 85.2%. DWI at a b-value of 1000s/mm2 had higher sensitivity and specificity than DWI at a b-value of 500s/mm2, the sensitivity was statistically different between them. The sensitivity and specificity were higher for ADC maps at a b-value of 1000s/mm2 compared to DWI at a b-value of 1000s/mm2, but there were not statistically different. Conclusions DWI and ADC maps at a b-value of 1000s/mm2 have a high value in the diagnosis of prostate cancer; DWI at a b-value of 500s/mm2 have a low sensitivity in the diagnosis of prostate cancer.
