| Autor: |
Lee J; Trauma, Emergency Surgery, Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge St, Suite 810, Boston, MA 02114, USA. lee.jarone@mgh.harvard.edu, Evans CS, Singh N, Kirschner J, Runde D, Newman D, Wiener D, Quaas J, Shah K |
| Jazyk: |
angličtina |
| Zdroj: |
Emergency radiology [Emerg Radiol] 2013 Jun; Vol. 20 (3), pp. 219-23. Date of Electronic Publication: 2012 Dec 19. |
| DOI: |
10.1007/s10140-012-1098-0 |
| Abstrakt: |
Utilization of computed tomography scans (CTs) has increased dramatically in emergency departments in the USA. This study aimed to retrospectively determine the yield of CTs among all patients that received a CT of the head from 2001 to 2007, which is adjusted for patient volume. For secondary endpoints, we examined the yield of CT of the head for the following hemorrhages: (1) intracerebral, (2) subarachnoid, (3) subdural, and (4) epidural. In 2001, 3.3 head CTs were performed per 100 patients seen. This increased by 60 % to 5.2 per 100 in 2007 (p = 0.005, R (2) = 0.82). This correlated with a nonsignificant decrease in the rate of intracranial hemorrhage found by CT from 3.6 per 100 CTs in 2001 (95 % confidence interval (CI) = 2.7-4.5) to 3.0 per 100 in 2007 (95 % CI = 2.5-3.6). There were no significant differences in "positive" rates for each subgroup of intracranial hemorrhage. Our study found that the utilization of head CTs increased dramatically, but there was a corresponding increase in the number of positive findings so that the overall yield of head CTs from 2001 to 2007 remained relatively constant. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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