| Project/Area Number |
17591291
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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 |
Radiation science
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| Research Institution | Iwate Medical University |
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Principal Investigator |
YOSHIIOKA Kunihiro Iwate Medical University, School of Medicine, Associate Professor, 医学部, 助教授 (70210648)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAJIMA Takayuki Iwate Medical University, School of Medicine, Assistant Professor, 医学部, 講師 (50244918)
NIINUMA Hiroyuki Iwate Medical University, School of Medicine, Assistant, 医学部, 助手 (90382598)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | MRI / CT / Aorta / Aortic aneurysm / Spinal cord / Spinal circulation / Angiography / Adamkiewicz artery |
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| Research Abstract |
It is very important to assess the artery of Adamkiewicz before repair of the thoracoabdomoinal or descending thoracic aorta. Recent advances in MR angiography and CT angiography have led to changes in the detectability of this artery. In this research, both MR angiography and CT angiography were performed without complications for preoperative evaluation of 30 patients who underwent repair of the thoracoabdominal or descending thoracic aorta. MR angiography provided detection rate as high as 93% and 80% with the morphologic "hairpin turn" criterion and the anatomic "continuity" criterion, respectively. Sixteen-detector row CT angiography provided detection rate as high as 83% and 60%, respectively.
The collateral circulations to the artery of Adamkiewicz were depicted in seven cases (23%). MR angiography is superior for depiction of the artery of Adamkiewicz, especially when it arises from the false lumen of a dissecting aneurysm. CT angiography has a wide field of view and allows depiction of significant collateral pathway associated with the internal thoracic artery.
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