Role of magnetic resonance perfusion studies in moyamoya disease
Paritosh C Khanna1, Chinar Lath, Swapna B Gadewar
1Department of Magnetic Resonance Imaging, Nanavati Hospital, Mumbai, India. paritoshkhanna@hotmail.com
Abstract:
Moyamoya disease, Japanese for 'puff of smoke', is a rare disease that presents most commonly with recurrent TIAs (transient ischemic attacks) / stroke in childhood. Ischemic symptoms in patients with moyamoya disease are usually due to hemodynamically-mediated perfusion failure. Identification of abnormal tissue perfusion is an important aspect of the evaluation of these patients. We present the radiological features including the Magnetic Resonance (MR) Perfusion findings illustrating the hemodynamic changes of cerebral ischemia in a case of moyamoya disease.
Insights
Moyamoya disease, a rare condition causing stroke in children, often results from poor blood flow to the brain. This case highlights how Magnetic Resonance (MR) Perfusion imaging reveals these critical hemodynamic changes.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Moyamoya disease is a rare, progressive cerebrovascular disorder characterized by stenosis of the terminal portion of the internal carotid arteries and the proximal portions of the anterior and middle cerebral arteries.
- It commonly affects children and presents with recurrent transient ischemic attacks (TIAs) or stroke.
- Ischemic symptoms are typically caused by hemodynamically-mediated perfusion failure.
Observation:
- This case report focuses on the radiological features of moyamoya disease.
- Magnetic Resonance (MR) Perfusion imaging was utilized to evaluate the cerebral hemodynamics.
- The study illustrates the characteristic findings associated with moyamoya disease.
Findings:
- The Magnetic Resonance (MR) Perfusion findings clearly demonstrated abnormal tissue perfusion.
- These findings illustrated the hemodynamic changes indicative of cerebral ischemia in the patient.
- The radiological features are consistent with the pathophysiology of moyamoya disease.
Implications:
- Accurate identification of abnormal cerebral perfusion is crucial for managing moyamoya disease.
- MR Perfusion imaging provides valuable insights into the hemodynamic disturbances.
- This imaging technique aids in the evaluation and understanding of moyamoya disease progression and its ischemic consequences.
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