Uterine contractions: Possible diagnostic pitfall at MR imaging
Uterine contractions: Possible diagnostic pitfall at MR imaging
复制标题
子宫收缩：磁共振成像可能存在的诊断陷阱
DOI：
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发表时间：
1993
影响因子：
4.4
通讯作者：
J. Konishi
中科院分区：
文献类型：
--
作者：
K. Togashi;Satoshi Kawakami;I. Kimura;R. Asato;Ryousuke Okumura;M. Fukuoka;T. Mori;J. Konishi
共有206名患有各种妇科疾病的非妊娠患者接受了盆腔磁共振（MR）检查，包括矢状位T2加权和造影剂增强T1加权图像。回顾性分析MR图像，以确定在同一MR检查期间获得的系列图像上子宫内膜构型的变化。在20例MR检查中（均为育龄期女性），在T2加权或对比增强T1加权图像上观察到由于子宫肌层膨出导致的子宫内膜扭曲。在不同时间获得的其他MR图像上不存在。18例肌层膨出呈低信号。在T2加权或增强T1加权图像上，发现类似于子宫腺肌病或平滑肌瘤。这些结果证明了非妊娠子宫中存在一过性子宫肌层膨出和一过性低强度子宫肌层。这种现象被认为代表子宫收缩。临床医生应注意可能存在短暂的低信号强度子宫肌层膨出，这可能会给正常子宫带来诊断问题。
A total of 206 nongravid patients with various gynecologic problems underwent pelvic magnetic resonance (MR) examinations that included both sagittal T2‐weighted and contrast agent–enhanced T1‐weighted images. MR images were retrospectively reviewed to identify changes in endometrial configuration on serial images obtained during the same MR examination. In 20 MR examinations (all in women of reproductive age), endometrial distortion due to myometrial bulging was noted on T2‐weighted or contrast‐enhanced T1‐weighted images. It was absent on other MR images obtained at different times. Myometrial bulging exhibited low signal intensity in 18 examinations. The finding resembled adenomyosis or leiomyoma on T2‐weighted or contrast‐enhanced T1‐weighted images. These results evidence the presence of transient myometrial bulging and transient low‐intensity myometrium in the nongravid uterus. This phenomenon is thought to represent uterine contraction. Clinicians should be aware of the potential presence of transient low‐signal‐intensity myometrial bulging that could present diagnostic problems in the normal uterus.
影响因子：
19.7
作者：
HAYNOR, DR;MACK, LA;MOSS, AA
通讯作者：
MOSS, AA