Decreased Signal Intensity of the Middle Cerebellar Peduncle on Diffusion-Weighted MRI in Patients with Large Supratentorial Lesions
| Autor: | Naoya Takahashi, S. Tokiguchi, Kouichirou Okamoto, Kazuhiro Ishikawa, Kunio Sakai, Jusuke Ito |
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| Rok vydání: | 2001 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Cerebellum Adolescent Midbrain Lesion Mesencephalon medicine.artery medicine Middle cerebellar peduncle Humans Radiology Nuclear Medicine and imaging Moyamoya disease Child Aged medicine.diagnostic_test business.industry Magnetic resonance imaging Cerebral Arteries Middle Aged medicine.disease Magnetic Resonance Imaging medicine.anatomical_structure Child Preschool Middle cerebral artery Female Radiology Moyamoya Disease medicine.symptom business Intracranial Hemorrhages Diffusion MRI |
| Zdroj: | Journal of Computer Assisted Tomography. 25:106-112 |
| ISSN: | 0363-8715 |
| Popis: | Purpose: The purpose of this work was to evaluate signal intensity change of the middle cerebellar peduncles on diffusion-weighted imaging in patients with large supratentorial lesions. Methods: Signal intensity of the middle cerebellar peduncles was measured using a region of interest in 40 normal control subjects and in 28 patients with moyamoya disease on axial diffusion-weighted imaging with the motion-probing gradient perpendicular to the image. An additional six patients without moyamoya but with large supratentorial sequelae of hemorrhage or infarction were also included. Results: There was no difference in signal intensity between both middle cerebellar peduncles in normal subjects, but lower signal intensity was consistently observed in the contralateral middle cerebellar peduncle in 12 moyamoya patients with large supratentorial lesions in the middle cerebral artery distribution. This finding was observed in the six non-moyamoya patients, too. Conclusion: Decreased signal intensity of the contralateral middle cerebellar peduncle might be a remote effect caused by a large supratentorial lesion in a crossed cerebellar fashion. |
| Databáze: | OpenAIRE |
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