2006 Fiscal Year Final Research Report Summary
Research on MR imaging of the compression cervical myelopathy using ultra high tesla MR
| Project/Area Number |
17591592
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Orthopaedic surgery
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| Research Institution | Iwate Medical University |
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Principal Investigator |
SHIMAMURA Tadashi Iwate Medical University, School of Medicine, Professor, 医学部, 教授 (70162691)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAZAIKI Ken Iwate Medical University, Associate Professor, 医学部, 助教授 (90191262)
MURAKAMI Hideki Iwate Medical University, Research Associate, 医学部, 助手 (20285604)
SATO Kazuhiro Iwate Medical University, Research Associate, 医学部, 助手 (30405815)
YOSHIDA Satoshi Iwate Medical University, Research Associate, 医学部, 助手 (60405834)
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| Project Period (FY) |
2005 – 2006
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| Keywords | ultra high tesla MRI / cervical myelopathy / intra medullary signal intensity / laminoplasty |
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| Research Abstract |
We studied ultra high tesla MR imaging of the compression cervical myelopathy to investigate correlation with neurological findings. Fifteen cervical myelopathy cases were observed intramedullary high signal intensity area in T2WI in 3 tesla MRI before laminoplasty. They were taken MRI again 3 months after surgery and compared with the imaging of pre-operation. Five changing rate between pre-operation and post-operation were examined as following ; Improvement rate of Japanese Orthopaedic Association (JOA) score of cervical myelopatyh, enlargement rate of the canal, expansion rate of the cord, occupation rate of the intramedullary high signal intensity area in T2WI, and brightness rate of the signal intensity. These changing rates were analyzed correlation each other using Spearman's correlation coefficient by rank test. There was no correlation between the improvement rates of JOA score and other changing rates. There existed a definite correlation between enlargement rate of the canal and expansion rate of the cord with 0.68 of correlation coefficient, and between expansion rate of the cord and brightness rate of the signal intensity with 0.70 of correlation coefficient.
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