Diffusion-Weighted Imaging of Traumatic Subdural Hematoma in the Subacute Stage : Five Case Reports
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概要
- 論文の詳細を見る
Five cases of traumatic subdural hematomas in the subacute stage (from 7 to 20 days after head injury) were treated in one male and four females, aged from 63 to 82 years, with evacuation via craniotomy in three and aspiration via burr hole surgery in two. All hematomas were evaluated by T_<1^->, T_<2^->, and diffusion-weighted magnetic resonance imaging, and measurement of the apparent diffusion coefficient (ADC). Diffusion-weighted imaging showed the hematoma as a crescent high intensity area with a low intensity rim close to the brain surface (two-layered structure) in four cases and as high intensity with low intensity components in one case. The high intensity areas under the dura mater on diffusion-weighted imaging appeared as homogeneous high intensity on T_<^-> and T_<2^1> weighted imaging in four cases, and inhomogeneous high intensity on T_<1^-> and isointensity on T_<2^-> weighted imaging in one case. The mean ADC value of the high intensity areas was 0.58±0.23 (mean±standard deviation)×10^<-3>mm^2/sec. The operative findings revealed the high intensity areas as solid clots. The low intensity areas on diffusion-weighted imaging appeared as homogeneous high intensity in four cases and inhomogeneous isointensity with high intensity components in one case on T_<1^1> and T_<2^-> weighted imaging. The mean ADC value of the low intensity areas was 2.03±0.27×10^<-3>mm^2/sec. The operative findings revealed the low intensity areas as mixtures of resolved clot and cerebrospinal fluid. Diffusion-weighted imaging showed the characteristic two-layered structure in traumatic subdural hematomas in the subacute stage, and analysis of the ADC values was useful for differentiating solid from liquid hematoma and for selection of the surgical procedure.
- 日本脳神経外科学会の論文
- 2005-09-15
著者
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Ono Yuko
Department of Pathology, Dokkyo Medical University
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FUKUOKA Masaaki
Department of Neurosurgery, Kochi Medical School
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MORI Koreaki
Department of Neurosurgery, Kochi Medical School
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Ono Yuko
Kochi Gamma Knife Center Mominoki Hospital Kochi
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Ono Yuko
Department Of Geriatric And Environmental Dermatology Nagoya City University Graduate School Of Medi
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KUWAHARA Seikou
Department of Neurosurgery, Mominoki Hospital
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KOAN Yoko
Department of Neurosurgery, Mominoki Hospital
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MIYAKE Hirohisa
Department of Neurosurgery, Mominoki Hospital
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MORIKI Akihito
Department of Kochi Gamma Knife Center, Mominoki Hospital
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MOKUDAI Toshihiko
Uchida Neurosurgical Clinic
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UCHIDA Yasufumi
Uchida Neurosurgical Clinic
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KUMANO Osamu
Department of Orthopedics, Kochi Kita Hospital
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MORIKI Akihito
Kochi Gamma Knife Center,Mominoki Hospital,Kochi
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MORI Koreaki
Kochi Gamma Knife Center,Mominoki Hospital,Kochi
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Koan Yoko
Department Of Neurosurgery Mominoki Hospital Kochi
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Kumano Osamu
Department Of Orthopedics Kochi Kita Hospital
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Mori Koreaki
Department Of Neurosurgery Kochi Medical School
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Mori Koreaki
Kochi Gamma Knife Center Mominoki Hospital Kochi
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Moriki Akihito
Kochi Gamma Knife Center Mominoki Hospital Kochi
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Kuwahara Seikou
Department Of Neurosurgery Mominoki Hospital Kochi
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Kuwahara Seikou
Department Of Neurosurgery Kouhoku National Health Insurance Hospital Of Sakawa-cho Kochi
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Miyake Hirohisa
Department Of Neurosurgery Mominoki Hospital Kochi
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Uchida Yasufumi
Uchida Neurosurgical Clinic Kochi
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Mokudai Toshihiko
Uchida Neurosurgical Clinic Kochi
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Fukuoka Masaaki
Department Of Neurosurgery Kochi Medical School
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Fukuoka Masaaki
Department Of Neurosurgery Mominoki Hospital Kochi
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Mori Koreaki
Department Of Integrated Medicine Division Of Internal Medicine Osaka University Graduate School Of
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