中国CT和MRI杂志
中國CT和MRI雜誌
중국CT화MRI잡지
CHINESE JOURNAL OF CT AND MRI
2015年
2期
90-94
,共5页
磁共振成像%弥散加权成像%肿瘤%b值%转移
磁共振成像%瀰散加權成像%腫瘤%b值%轉移
자공진성상%미산가권성상%종류%b치%전이
Magnetic Resonance Imaging%Diffusion Weighted Imaging%Tumor%B Value%Metastasis
目的：探讨全身弥散加权磁共振成像(whole body diffusion-weighted MRI，WB-DWI)及其联合常规CT/MRI诊断恶性肿瘤转移灶的临床应用价值。材料与方法对76例恶性肿瘤患者进行WB-DWI检查，所有恶性肿瘤患者均在7天内完成常规CT及MR检查。采用双盲法由两名资深影像医师对所有WB-DWI图像以及CT、MR图像进行分析。所有转移瘤均经手术或穿刺后病理学检查、影像学资料、实验室检查或随访至少3个月证实。统计单独应用WB-DWI和WB-DWI联合常规CT/MRI对转移瘤诊断的灵敏度、特异度和准确度；比较两者在转移瘤的诊断中是否存在统计学差异。结果单独应用WB-DWI诊断转移瘤的灵敏度为75.9%，特异度为25%，准确度为69.8%；WB-DWI联合CT/MRI诊断转移瘤的灵敏度为94.8%，特异度为67.5%，准确度为91.5%。经卡方检验，两者对恶性肿瘤全身转移灶的检出率具有统计学意义(P＜0.05)。结论 WB-DWI联合CT/MRI是诊断恶性肿瘤全身转移灶合理、有效的检查手段，具有较高的临床应用价值。
目的：探討全身瀰散加權磁共振成像(whole body diffusion-weighted MRI，WB-DWI)及其聯閤常規CT/MRI診斷噁性腫瘤轉移竈的臨床應用價值。材料與方法對76例噁性腫瘤患者進行WB-DWI檢查，所有噁性腫瘤患者均在7天內完成常規CT及MR檢查。採用雙盲法由兩名資深影像醫師對所有WB-DWI圖像以及CT、MR圖像進行分析。所有轉移瘤均經手術或穿刺後病理學檢查、影像學資料、實驗室檢查或隨訪至少3箇月證實。統計單獨應用WB-DWI和WB-DWI聯閤常規CT/MRI對轉移瘤診斷的靈敏度、特異度和準確度；比較兩者在轉移瘤的診斷中是否存在統計學差異。結果單獨應用WB-DWI診斷轉移瘤的靈敏度為75.9%，特異度為25%，準確度為69.8%；WB-DWI聯閤CT/MRI診斷轉移瘤的靈敏度為94.8%，特異度為67.5%，準確度為91.5%。經卡方檢驗，兩者對噁性腫瘤全身轉移竈的檢齣率具有統計學意義(P＜0.05)。結論 WB-DWI聯閤CT/MRI是診斷噁性腫瘤全身轉移竈閤理、有效的檢查手段，具有較高的臨床應用價值。
목적：탐토전신미산가권자공진성상(whole body diffusion-weighted MRI，WB-DWI)급기연합상규CT/MRI진단악성종류전이조적림상응용개치。재료여방법대76례악성종류환자진행WB-DWI검사，소유악성종류환자균재7천내완성상규CT급MR검사。채용쌍맹법유량명자심영상의사대소유WB-DWI도상이급CT、MR도상진행분석。소유전이류균경수술혹천자후병이학검사、영상학자료、실험실검사혹수방지소3개월증실。통계단독응용WB-DWI화WB-DWI연합상규CT/MRI대전이류진단적령민도、특이도화준학도；비교량자재전이류적진단중시부존재통계학차이。결과단독응용WB-DWI진단전이류적령민도위75.9%，특이도위25%，준학도위69.8%；WB-DWI연합CT/MRI진단전이류적령민도위94.8%，특이도위67.5%，준학도위91.5%。경잡방검험，량자대악성종류전신전이조적검출솔구유통계학의의(P＜0.05)。결론 WB-DWI연합CT/MRI시진단악성종류전신전이조합리、유효적검사수단，구유교고적림상응용개치。
Objective To explore the values of whole body diffusion-weighted MRI (WB-DWI) and WB-DWI in combination with conventional CT/MRI in diagnosis of metastases of malignant tumors. Materials and Methods 76 patients with malignant tumors underwent WB-DWI examinations. Patients with malignant tumors underwent conventional CT and MRI examinations within a week, few of which underwent enhanced CT OR MRI scan. Two experienced imaging physicians analyzed all of WB-DWI, CT and MR images by double-blind method. All metastases were confirmed by surgery or puncture pathology, imaging data and laboratory tests or follow-up at least 3 months. The sensitivity, specificity and accuracy in the diagnosis of metastases of WB-DWI and WB-DWI in combination with conventional CT/MRI were compared. Results The sensitivity, specificity and accuracy in detecting systemic metastases from malignant tumors were 75.9%, 25%, 69.8% respectively by WB-DWI, and 94.8%, 67.5%, 91.5% respectively by WB-DWI in combination with conventional CT/MRI. By the chi-square test, there were statistical differences in detecting systemic metastases from malignant tumors between the two methods (P>0.05). Conclusion WB-DWI in combination with conventional CT/MRI is a reasonable and effective screening tool in detecting systemic metastases from malignant tumors, with high clinical value.
