医学
弹性成像
前列腺癌
弹性(物理)
接收机工作特性
前列腺
放射科
超声科
病态的
核医学
超声波
癌症
病理
内科学
复合材料
材料科学
作者
Q. Allab Pan,Yan Xue,Jun Yan,Lei Xu,Chao Gu,Ji Ma
标识
DOI:10.3760/cma.j.issn.1004-4477.2013.10.019
摘要
Objective To explore the value of shear wave elastrography (SWE) in diagnosis of prostate cancer.Methods SWE quantitative elastography was preformed in 55 patients with suspected prostate cancer,to obtain the elastic modulus (mean,maximum).Each patient underwent sonography-guided prostatic biopsy on the same day.With the pathologic results as reference,ROC curves were used to assess diagnostic performance.Results ①Pathological tests showed that 39 lesions were benign(hyperplasia) and 16 lesions were malignant.The mean elasticity value of benign lesions was (39.04 ± 8.22) kPa,and the maximum value was (54.10 ± 9.18)kPa,whereas of malignant ones were (53.31 ± 3.92)kPa and (68.71 ±2.57)kPa,respectively (P <0.05).② The area under the ROC curve (AZ) of the maximum and mean elasticity value was 0.951 and 0.944.Taking 48.07 kPa as the threshold of the mean elasticity value,the sensitivity was 91.8% and the specificity was 89.7%.Then taking 65.50 kPa as the threshold of the maximum elasticity value,the sensitivity was 92.1% and the specificity was 87.5%.Conclusions SWE is helpful to diagnose and differentiate prostate diseases by measuring elastic modulus.
Key words:
Ultrasonography; Prostatic neoplasms; Elastography
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