宫颈癌宫旁浸润的检测：短反转时间反转恢复序列的作用

Detection of parametrial invasion in cervical carcinoma: role of short tau inversion recovery sequence.

作者信息

Lam W W, So N M, Yang W T, Metreweli C

机构信息

Department of Diagnostic Radiology and Organ Imaging, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong.

出版信息

Clin Radiol. 2000 Sep;55(9):702-7. doi: 10.1053/crad.2000.0506.

DOI:10.1053/crad.2000.0506

PMID:10988049

Abstract

AIM

To investigate the role of short tau inversion recovery (STIR) sequence in the detection of parametrial invasion in patients with carcinoma of the cervix.

MATERIALS AND METHODS

Axial magnetic resonance imaging (MRI) images of the cervical region using T1 weighted turbo spin echo (TSE), TSE T2, STIR and T1 weighted dynamic gadolinium enhanced SE sequences were obtained in 38 patients with cervical carcinoma. All the images were assessed for the presence or absence of parametrial invasion using a standard scoring system. The diagnostic confidence, image quality, sensitivity, specificity, positive and negative predictive values and accuracy of each sequence were compared.

RESULTS

The sensitivity, specificity, positive predictive value, negative predictive value and accuracy for each sequence in the diagnosis of parametrial invasion were: 60%, 80%, 32%, 93% and 78% for unenhanced T1W sequence; 90%, 92%, 64%, 98% and 92% for TSE T2 sequence; 90%, 94%, 69%, 98% and 93% for STIR sequence; and 90%, 80%, 41%, 98% and 82% for dynamic T1W sequence, respectively. Image quality and diagnostic confidence were both better for STIR and T2 compared to the dynamic T1 sequence.

CONCLUSION

Dynamic T1W imaging is inferior to STIR and TSE T2 sequences. STIR is of similar value in the detection of parametrial invasion in cervical carcinoma as a TSE T2W sequence; their simultaneous use is not justified.

摘要

目的

探讨短tau反转恢复（STIR）序列在宫颈癌患者宫旁浸润检测中的作用。

材料与方法

对38例宫颈癌患者进行宫颈区域的轴位磁共振成像（MRI）检查，采用T1加权快速自旋回波（TSE）、TSE T2、STIR和T1加权动态钆增强SE序列。使用标准评分系统评估所有图像是否存在宫旁浸润。比较各序列的诊断可信度、图像质量、敏感性、特异性、阳性和阴性预测值及准确性。

结果

各序列诊断宫旁浸润的敏感性、特异性、阳性预测值、阴性预测值及准确性分别为：未增强T1W序列为60%、80%、32%、93%和78%；TSE T2序列为90%、92%、64%、98%和92%；STIR序列为90%、94%、69%、98%和93%；动态T1W序列为90%、80%、41%、98%和82%。与动态T1序列相比，STIR和T2序列的图像质量和诊断可信度均更好。