Evaluation of Lenticulostriate Arteries Changes by 7 T Magnetic Resonance Angiography in Type 2 Diabetes
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- Yashiro Satoshi
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
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- Kameda Hiroyuki
- Division of Ultra-high Field MRI, Institute for Biomedical Sciences, Iwate Medical University
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- Chida Ai
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
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- Todate Yusuke
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
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- Hasegawa Yutaka
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
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- Nagasawa Kan
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
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- Uwano Ikuko
- Division of Ultra-high Field MRI, Institute for Biomedical Sciences, Iwate Medical University
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- Sasaki Makoto
- Division of Ultra-high Field MRI, Institute for Biomedical Sciences, Iwate Medical University
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- Ogasawara Kuniaki
- Department of Neurosurgery, Iwate Medical University
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- Ishigaki Yasushi
- Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University
Abstract
<p>Aim: Progress in neuroimaging techniques allows us to investigate the microvasculature characteristics including lenticulostriate arteries (LSA), which are closely associated with lacunar infarction. Because ischemic stroke is a more critical health problem in East Asian than in other populations, in order to clarify pathological changes underlying cerebral small vessel disease (SVD), we projected an imaging analysis of LSA using high-resolution brain magnetic resonance imaging (MRI) in middle-aged Japanese subjects with type 2 diabetes.</p><p>Methods: Twenty-five subjects with type 2 diabetes and 25 non-diabetic control subjects underwent 7 Tesla (7 T) brain MRI. The prevalences of SVD and LSA structural changes were determined in each group.</p><p>Results: SVD prevalence did not differ significantly between the type 2 diabetes and control groups. The average numbers of stems, as well as numbers of branches, of LSA were significantly smaller in diabetic subjects than non-diabetic control subjects. The signal intensity of LSA was markedly decreased, indicating reduced blood flow in type 2 diabetes.</p><p>Conclusion: In spite of the prevalence of SVD being similar, structural changes and decreased signal intensity of LSA were highly detected in diabetic subjects compared with non-diabetic controls, suggesting that 7 T MRA enables us to determine LSA impairment prior to the development of SVD. Early detection of LSA impairment allows us earlier interventions aimed at the prevention of atherosclerotic events.</p>
Journal
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- Journal of Atherosclerosis and Thrombosis
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Journal of Atherosclerosis and Thrombosis 25 (10), 1067-1075, 2018-10-01
Japan Atherosclerosis Society