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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

자료유형
학술저널
저자정보
윤세철 (가톨릭대학 의학부 방사선과학교실) 김춘열 (가톨릭대학 의학부 방사선과학교실) 이성용 (가톨릭대학 의학부 방사선과학교실) 박용휘 (가톨릭대학 의학부 방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제17권 제2호
발행연도
1981.1
수록면
230 - 239 (10page)

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The cranial computed tomgoraphy (CT) is a new radiological technique with which , for the first time, minimal differences an attenuation by intracranial soft tissue can be measured exactly. The basic physical principles of computed tomography have been extensively presented by Hounsifield (1973). It is well established that the attenuation of extravasated blood measures between 35 and 45 Hounsfield units. There fore no difficulty should be encountered in the recognition and diagnosis of extra-axial hematoma and cerebral contusion since the density of the brain parenchyma never measures more than 25 units. As the constant increase in high velocity accident and violence, the problem of acute head injury is one of the matters of great importance in today's medical practice. Therefore it is very important to figure out the method that would allow us to diagnose easily and precisely the effects of trauma upon the brain in order to institute the proper treatment at the earliest poss ble moment. Computed tomography allows was to make a diagnosis quickly and in a non-invasive manner. The CT scan was carried out on 310 head trauma causes in the department of radiology, St. Mary's and Kang Nam St.Mary's Hospital, Catholic Medical College , for 16 months from June 1979 to October 1980. All the scans were obtained with the Hitachi CT-H2 scanner and the scans were repeated following intravenous injection of high dose of contrast media (roughly 1.8 cc per kg body weight of 60% Conray). We have reviewed the CT scans of 310 patients got acute head injury in order to assess the location of brain lesions, the relationship between the CT densities of hematomas and their stage, the shape and mass effect of the extra-axial hematomas , and the effect of contrast enhancement. The results were as follows ; 1. Of all 310 cases of the head injuries, epidural hematoma was 13.5%, subdural hematoma was 8.7%, subdural hygroma was 10% , cerebral contusion 39%, hydrocephalus and strophy as 3.9% and negative finding was 24.9%. 2. The extra-axial hematoma was located on the right side in 49.3% and the left side in 39.1% and bilaterlly in 11.6% . Therefore unilateral lesion was much more than bilateral one. 3. The extra-axial hematoma was getting decreased in density as time gone by. 4. The shape of epidural hematoma was biconvex in 88.1% and planoconvex in 11.9%. 5. The shape of subdural hematoma was crescent in 88.9% and bioconvex in 11.9% in chronic stage. 6. The mass effect of extra-axial hematoma was getting slowly decreased as time gone by. 7. The extra-axial hematoma was enhancement by the contrast media in all acute, subacute the chronic stages as well as in the cerebral contusion, but there was a tendency that the contrast enhancement of hematoma was getting increased as time gone by.

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