Kostelic J K, Haughton V M, Sether L A
Department of Radiology, Froedtert Memorial Lutheran Hospital, Milwaukee, WI 53226.
Radiology. 1991 Mar;178(3):837-9. doi: 10.1148/radiology.178.3.1994428.
The appearance of the proximal lumbar spinal nerves at magnetic resonance (MR) imaging has not, to the authors' knowledge, been described. MR images and exactly corresponding sections obtained from four cadavers by means of a freezing microtome were correlated to characterize the MR appearance of the proximal spinal nerves. The junction of the dorsal and ventral rami with the dorsal and ventral roots consists of a group of six to 15 fascicles measuring 2-6 mm in length. These fascicles appear in MR images obtained with short repetition times as small foci of lower signal intensity than that of surrounding fat. The proximal spinal nerve and its relationship to the intervertebral disk and osseous margins of the neural foramen can be demonstrated effectively with MR imaging.
据作者所知，尚未有关于磁共振（MR）成像中腰段脊神经近端表现的描述。通过冷冻切片机从四具尸体获取的MR图像及与之精确对应的切片进行关联，以描述脊神经近端的MR表现。背侧和腹侧支与背侧和腹侧神经根的交界处由6至15束组成，长度为2 - 6毫米。在短重复时间获取的MR图像中，这些束呈现为比周围脂肪信号强度低的小病灶。MR成像能够有效显示脊神经近端及其与椎间盘和神经孔骨质边缘的关系。
