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首页> 外文期刊>Radiology >Critical soft tissues of the female pelvis: serial MR imaging before, during, and after radiation therapy.
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Critical soft tissues of the female pelvis: serial MR imaging before, during, and after radiation therapy.

机译：女性骨盆的关键软组织：放射治疗之前，期间和之后的连续MR成像。

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PURPOSE: To evaluate the findings in the irradiated critical soft-tissue organs of the female pelvis at magnetic resonance (MR) imaging within 30 months after radiation therapy. MATERIALS AND METHODS: Twenty-three patients (13 premenopausal and 10 postmenopausal women) with advanced cervical carcinoma underwent 276 MR examinations (T1- and T2-weighted imaging) scheduled before, three times during, and 7 weeks and 3, 6, 9, 12, 18, 24, and 30 months after the end of radiation therapy. A visual evaluation of the ureters, bladder, rectum, parametrium, and perivesical and perirectal soft tissues was performed by two radiologists. RESULTS: Fifteen abnormally wide ureters (diameter range, 7-23 mm; mean diameter, 14 mm) were seen in 10 (seven premenopausal and three postmenopausal women) (43%) of 23 patients at a median time of 18 months after the end of radiation therapy (range, 9-30 months). An abnormally wide ureter was a transient finding in eight (53%) of 15 abnormal ureters. Two premenopausal women (9%) of 23 patients had rectovaginal fistulas. One of these two patients also had a vesicovaginal fistula. CONCLUSION: Ureteral dilatation was seen in nearly half of the patients and occurred more frequently in premenopausal women than in postmenopausal women. Knowledge about the appearances of radiation-induced abnormalities of the critical soft tissues may be of help in the interpretation of MR images of the pelvis.
机译：目的：评估放射治疗后30个月内在磁共振（MR）成像下女性骨盆受照射的关键软组织器官中的发现。材料与方法：23例晚期宫颈癌患者（13例绝经前妇女和10例绝经后妇女）接受了276 MR检查（T1和T2加权成像），计划于此之前，期间以及7周，3周，3、6、9、3次放射治疗结束后的12、18、24和30个月。两名放射科医生对输尿管，膀胱，直肠，子宫旁及直肠和直肠周围的软组织进行了视觉评估。结果：23名患者中有10名（绝经前女性为7名，绝经后女性为3名）中有15例异常宽的输尿管（直径范围为7-23 mm;平均直径为14 mm）出现在结束后的18个月中位时间放疗的时间（9-30个月）。 15个异常输尿管中有8个（53％）出现了一个异常宽的输尿管。 23名患者中有2名绝经前女性（9％）患有直肠阴道瘘。这两名患者中的一名还患有阴道阴道瘘。结论：在近一半的患者中观察到了输尿管扩张，绝经前女性的发生率比绝经后女性高。有关辐射诱发的关键软组织异常的出现的知识可能有助于解释骨盆的MR图像。

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