Seki H, Kimura M, Sakai K
Department of Radiology, Niigata University School of Medicine, Japan.
Clin Radiol. 1997 Jan;52(1):18-23. doi: 10.1016/s0009-9260(97)80300-5.
To evaluate the usefulness of dynamic magnetic resonance (MR) imaging in assessing the depth of myometrial invasion, compared with conventional T2-weighted and contrast-enhanced T1-weighted imaging.
Forty patients with endometrial carcinoma were examined with T2-weighted images, dynamic studies and contrast-enhanced T1-weighted images, preoperatively. We evaluated enhancement patterns of myometrium and tumour, and compared MR findings with histological results concerning the depth of myometrial invasion.
In assessing the depth of myometrial invasion, the accuracy of T2-weighted images, dynamic studies and contrast-enhanced T1-weighted images was 58%, 85% and 68%, respectively. The tumour-myometrial contrast of dynamic studies was higher than that of other images. In addition, subendometrial enhancement (SEE) was frequently observed in dynamic studies in post-menopausal women, which was an important landmark in detecting myometrial invasion.
We consider that dynamic MR imaging has greater advantage in assessing myometrial invasion than T2-weighted or contrast-enhanced T1-weighted imaging.
与传统的T2加权成像和对比增强T1加权成像相比，评估动态磁共振（MR）成像在评估子宫肌层浸润深度方面的实用性。
40例子宫内膜癌患者在术前接受了T2加权成像、动态研究和对比增强T1加权成像检查。我们评估了子宫肌层和肿瘤的强化模式，并将MR检查结果与子宫肌层浸润深度的组织学结果进行了比较。
在评估子宫肌层浸润深度方面，T2加权成像、动态研究和对比增强T1加权成像的准确率分别为58%、85%和68%。动态研究的肿瘤-子宫肌层对比度高于其他成像。此外，绝经后女性在动态研究中经常观察到子宫内膜下强化（SEE），这是检测子宫肌层浸润的一个重要标志。
我们认为，动态MR成像在评估子宫肌层浸润方面比T2加权成像或对比增强T1加权成像具有更大优势。
