CARCINOMA OF THE CERVIX - DYNAMIC MR IMAGING
CARCINOMA OF THE CERVIX - DYNAMIC MR IMAGING
复制标题
DOI：
10.1148/radiology.182.3.1535875
复制
发表时间：
1992-03-01
期刊：
影响因子：
19.7
通讯作者：
OKAMURA, H
中科院分区：
文献类型：
--
作者：
YAMASHITA, Y;TAKAHASHI, M;OKAMURA, H
动态磁共振成像（MR）进行评估8个正常子宫和29宫颈癌。 在快速注射钆喷酸葡胺后，每30秒在矢状面采用自旋回波（SE）技术或在轴向面采用快速低角度拍摄（FLASH）技术获得动态图像。 在正常子宫中，子宫内膜和子宫肌层之间的连接最初轻微增强，随后子宫肌层增强。 在早期动态相（30 - 60秒），宫颈癌很容易与宫颈间质和子宫肌层区分开来。 在早期动态相，动态SE技术的肿瘤-宫颈对比度明显高于T2加权成像或对比剂增强T1加权成像（P <0.01）。 对于旁壁侵犯的评估，动态FLASH研究显示比T2加权图像更好的对比度。 在18名接受手术的患者中，14名患者（78%）的动态MR图像，11名患者（61%）的T2加权图像和7名患者（39%）的增强后T1加权图像可以准确评估间质浸润程度和肿瘤大小。
Dynamic magnetic resonance (MR) imaging was performed to evaluate eight normal uteri and 29 cervical carcinomas. After rapid injection of gadopentetate dimeglumine, dynamic images were obtained every 30 seconds with the spin-echo (SE) technique in the sagittal plane or the fast low-angle shot (FLASH) technique in the axial plane. In the normal uterus, initial slight enhancement of the junction between endometrium and myometrium was followed by enhancement of the uterine myometrium. Cervical carcinoma was readily distinguished from the cervical stroma and myometrium in the early dynamic phase (30-60 seconds). Tumor-cervix contrast in the early dynamic phase was significantly more marked with the dynamic SE technique than with T2-weighted or contrast material-enhanced T1-weighted imaging (P < .01). For the evaluation of parameterial invasion, the dynamic FLASH study showed better contrast than did T2-weighted images. Among 18 patients who underwent surgery, accurate assessment of the degree of stromal invasion and tumor size was possible with dynamic MR images in 14 patients (78%), T2-weighted images in 11 (61%), and postcontrast T1-weighted images in seven (39%).