医学
磁共振弥散成像
部分各向异性
磁共振成像
髓内棒
脊髓
有效扩散系数
脊髓损伤
白质
纤维束成像
核医学
放射科
外科
精神科
作者
Fengzhao Zhu,Yulong Wang,Xiaodong Kong,Yuan Liu,Lian Zeng,Xirui Jing,Sheng Yao,Kaifang Chen,Lian Yang,Xiaodong Guo
标识
DOI:10.1007/s00586-022-07207-w
摘要
PurposeThe application of conventional magnetic resonance imaging (MRI) in combination with diffusion tensor imaging (DTI) and diffusion tensor tractography (DTT) to diagnose acute traumatic cervical SCI has not been studied. This study explores the role of MRI with DTI-DTT in the diagnosis of acute traumatic cervical spinal cord injury (SCI).MethodsThirty patients with acute traumatic cervical SCI underwent conventional MRI and DTI-DTT. Conventional MRI was used to detect the intramedullary lesion length (IMLL) and intramedullary hemorrhage length (IMHL). DTI was used to detect the spinal cord’s fractional anisotropy (FA) and apparent diffusion coefficient value, and DTT detected the imaginary white matter fiber volume and the connection rates of fiber tractography (CRFT). Patients’ neurological outcome was determined using the American Spinal Injury Association (ASIA) Impairment Scale (AIS) grades.ResultsPatients were divided into group A (without AIS grade conversion) and group B (with AIS grade conversion). The IMLL and IMHL of group A were significantly higher than those of group B. The FA and CRFT of group A were significantly lower than those of group B. The final AIS grade was negatively correlated with the IMLL and IMHL, and positively correlated with the FA and CRFT. According to imaging features based on conventional MRI and DTI-DTT, we propose a novel classification and diagnostic procedure.ConclusionsThe combination of conventional MRI with DTI-DTT is a valid diagnostic approach for SCI. Lower IMLL and IMHL, and higher FA value and CRFT are linked to better neurological outcomes.
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