Mawad M E, Rivera V, Crawford S, Ramirez A, Breitbach W
Department of Radiology, Methodist Hospital, Baylor College of Medicine, Houston, TX 77030.
AJNR Am J Neuroradiol. 1990 Sep-Oct;11(5):987-91.
MR images of the thoracic spinal cord were made in 24 patients who developed signs and symptoms of spinal cord ischemia or infarction following surgery for a thoracoabdominal aortic aneurysm. Findings consisted primarily of four different patterns of signal abnormalities in the distribution of the anterior spinal artery. These abnormalities were identified as types A-D, depending on the degree of involvement of the gray matter and surrounding white matter. We found good correlation between the distribution of the signal abnormalities in the cord, the severity of the neurologic deficits, and the clinical outcome. MR is the imaging method of choice for diagnosing spinal cord ischemia or infarction. A thorough knowledge of the spinal cord arterial territories is crucial for characterizing ischemic MR signal abnormalities and for differentiating them from other causes of myelopathy.
对24例在胸腹主动脉瘤手术后出现脊髓缺血或梗死体征和症状的患者进行了胸段脊髓的磁共振成像（MR）检查。检查结果主要包括脊髓前动脉分布区域内四种不同类型的信号异常。根据灰质和周围白质的受累程度，这些异常被分为A - D型。我们发现脊髓内信号异常的分布、神经功能缺损的严重程度与临床结果之间存在良好的相关性。MR是诊断脊髓缺血或梗死的首选成像方法。全面了解脊髓动脉分布区域对于识别缺血性MR信号异常以及将其与其他脊髓病病因相鉴别至关重要。
