Prediction of motor outcome in ischemic stroke involving the pyramidal tract using diffusion tensor imaging
| Autor: | Gehan Gouda Ali, Abeer Maghawry Abd Elhameed |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
medicine.medical_specialty
Diffusion tensor imaging (DTI) Pyramidal tracts business.industry Stroke scale Corticospinal tract (CST) Optimal treatment food and beverages medicine.disease medicine.anatomical_structure Diffusion tensor tractography Radiology Nuclear Medicine and imaging Ischemic stroke Fractional anisotropy (FA) medicine Radiology Nuclear Medicine and imaging In patient cardiovascular diseases Radiology Diffusion tensor tractography (DTT) business Stroke Diffusion MRI |
| Zdroj: | The Egyptian Journal of Radiology and Nuclear Medicine. 43(1):25-31 |
| ISSN: | 0378-603X |
| DOI: | 10.1016/j.ejrnm.2011.11.004 |
| Popis: | Background and purposeEarly evaluation of the pyramidal tract is a prerequisite in patients with ischemic stroke in order to decide the optimal treatment or to assess appropriate rehabilitation. The aim of this study was to predict motor outcome using quantitative and qualitative diffusion tensor parameters and their correlations with severity of stroke as defined by the National Institutes of Health Stroke Scale (NIHSS).Materials and methodsTwenty-one patients presenting with ischemic stroke were studied with DTI. All patients had diffusion measurements such as FA values of the affected and unaffected regions and the FA ratio between them. Color FA maps of the pyramidal tract were constructed and the degree of infarctions was classified into groups according to the involvements of the pyramidal tracts. The motor performance of the upper and lower extremities was assessed using the NIHSS on the day of patients’ admission and discharge. The motor outcomes were correlated with the FA values of the pyramidal tract.ResultsThe FA values of the affected pyramidal tracts were significantly lower as compared with the unaffected side (p-value |
| Databáze: | OpenAIRE |
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