Effects of MRI in the evaluation of the neurovascular bundle invasion by prostate cancer
- VernacularTitle:MRI诊断前列腺癌侵犯神经血管束的价值
- Author:
Xiaoying WANG
;
Xuexiang JIANG
;
Jiangxi XIAO
- Publication Type:Journal Article
- Keywords:
Prostatic neoplasms;
Magnetic resonance imaging;
Evaluation studieh
- From:
Chinese Journal of Radiology
2000;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of MRI in the evaluation of the neurovascular bundle(NVB) invasion by prostate cancer. Methods The usefulness of MR was evaluated to make the preoperative determination of NVB invasion in 43 patients underwent radical prostatectomy, by using chi square test for the pared data. And the sensitivity, specificity, and accuracy of the method were also calculated. Results 23 patients were judged to have evidences of NVB invasion on axial MR images: (1) Direct tumor extension posterolaterally, without demonstration of the normal NVB; (2) Focal thicken of the NVB; (3) Lack of normal adipose tissue between the bulged prostate and the NVB on T 1WI or focal lesion of decreased signal intensity on T 2WI approached the NVB. MR diagnosis was approximately corresponded with the pathological result, ? 2 value was 12.44, P
