Effect of Intervertebral Disk Degeneration on Spinal Stenosis During Magnetic Resonance Imaging With Axial Loading
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概要
- 論文の詳細を見る
Magnetic resonance (MR) imaging with axial loading can simulate the physiological standing state and disclose spinal stenosis undetected or underestimated in the conventional position. Intervertebral disk degeneration may be an important factor in spinal stenosis. This study investigated whether intervertebral disk degeneration increases spinal stenosis during axial loading. MR imaging with and without axial loading was obtained in 51 patients with neurogenic intermittent claudication and/or sciatica and reviewed retrospectively. The grade of disk degeneration was rated in four disk spaces from L2-3 to L5-S1. The dural sac cross-sectional area (DCSA) was measured on MR images taken in both conventional and axial loading positions, and the change in the DCSA was calculated. The effect of disk degeneration on the DCSA was statistically analyzed. Significant decreases in the DCSA occurred with grade 4 disk degeneration (mean ± standard deviation, 20.1 ± 14.1 mm2), followed by grade 3 (18.3 ± 15.1 mm2) and grade 2 (8.9 ± 13.1 mm2). DCSA decreased considerably with increased severity of disk degeneration with axial loading, except for grade 5 disk degeneration. More accurate diagnosis of stenosis can be achieved using MR imaging with axial loading, especially if grade 2 to 4 disk degeneration is present.
- 社団法人 日本脳神経外科学会の論文
- 2009-06-15
著者
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LEE Sang-Ho
Department of Neurosurgery, Wooridul Spine Hospital
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LIU Wei
Department of Physiology, China Pharmaceutical University
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Ahn Tae-joon
Department Of Neurosurgery Wooridul Spine Hospital
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Liu Wei
Department Of Geriatric Medicine Kanazawa Medical University:respiratory Department Of Zhong Nan Hos
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Ahn Yong
Department of Internal Medicine, Gyeongsang National University Hospital, Korea
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Ahn Yong
Department Of Neurosurgery Wooridul Spine Hospital
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Lee Sang-ho
Department Of Architectural Engineering Yonsei University
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CHOI Gun
Department of Neurosurgery, Wooridul Spine Hospital
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LEE Ho-Yeon
Department of Neurosurgery, Wooridul Spine Hospital
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KIM Ho-Jin
Department of Neurosurgery, Wooridul Spine Hospital
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Choi Gun
Department Of Neurosurgery Wooridul Spine Hospital
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Kim Ho-jin
Department Of Neurosurgery Wooridul Spine Hospital
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Lee Ho-yeon
Department Of Neurosurgery Wooridul Spine Hospital
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Lee Ho-yeon
Department Of Chemical Engineering Sogang University
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Liu Wei
Department Of Analytical Chemistry Shenyang Pharmaceutical University
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Liu Wei
Department Of Radiology Wooridul Spine Hospital
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Lee Sang-ho
Department Of Agricultural Economics Sunchon National University
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