Lowe T W, Weinreb J, Santos-Ramos R, Cunningham F G
Obstet Gynecol. 1985 Nov;66(5):629-33.
Magnetic resonance imaging is a new noninvasive diagnostic technique that involves no ionizing radiation, has no known significant adverse biologic effects, and produces high resolution cross-sectional body images. When compared with sonography and x-ray computed axial tomography, magnetic resonance imaging may have several advantages. To investigate its clinical role in obstetrics, magnetic resonance imaging was used to examine 11 women with abnormal pregnancies. Prior ultrasound examination showed abnormal appearing fetuses in five, abnormalities of the amnionic fluid volume in five, and one each with a large adnexal mass and a molar pregnancy. Examples of images obtained from these women are presented and described. Maternal anatomy was well visualized in all women studied. Based on the preliminary experience, the authors believe that magnetic resonance imaging will be a useful adjunct for diagnostic visualization of normal and abnormal maternal anatomy. Detailed fetal imaging was also possible, and it is anticipated that magnetic resonance imaging will prove useful for fetal evaluation, especially fetal intracranial anatomy and fetal anatomy in pregnancies complicated by oligohydramnios. Because fetal subcutaneous fat is prominently depicted with magnetic resonance imaging, this technology may be useful for assessment of fetal nutritional status.
磁共振成像是一种新的非侵入性诊断技术，它不涉及电离辐射，没有已知的重大不良生物学效应，并且能产生高分辨率的身体横断面图像。与超声检查和X线计算机断层扫描相比，磁共振成像可能具有几个优点。为了研究其在产科中的临床作用，使用磁共振成像对11例妊娠异常的妇女进行了检查。先前的超声检查显示，5例胎儿外观异常，5例羊水体积异常，1例有较大附件包块，1例为葡萄胎。本文展示并描述了从这些妇女身上获得的图像实例。在所有研究的妇女中，母体解剖结构都能清晰显示。基于初步经验，作者认为磁共振成像将成为诊断正常和异常母体解剖结构的有用辅助手段。详细的胎儿成像也是可能的，预计磁共振成像将被证明对胎儿评估有用，特别是对胎儿颅内解剖结构以及羊水过少合并妊娠时的胎儿解剖结构评估。由于磁共振成像能清晰显示胎儿皮下脂肪，这项技术可能有助于评估胎儿营养状况。
