CT Findings of Spontaneous Subarachnoid Hemorrhage of Unknown Cause.
10.3348/jkrs.1994.30.3.401
- Author:
Il Kwon YANG
;
Kyung Sub SHINN
;
Hee Jeong RO
;
Myung Hee CHUNG
;
Kyu Ho CHOI
;
Han Jin LEE
;
Seog Min PARK
;
Taek Geun KIM
- Publication Type:Original Article
- MeSH:
Angiography;
Brain;
Follow-Up Studies;
Hemorrhage;
Humans;
Prognosis;
Rare Diseases;
Retrospective Studies;
Subarachnoid Hemorrhage*;
Tomography, X-Ray Computed
- From:Journal of the Korean Radiological Society
1994;30(3):401-404
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: Spontaneous subarachnoid hemorrhage(S-SAH) is a relatively rare disease with good clinical course and prognosis. The purpose of this study is to evaluate the cisternal blood distribution on CT in patient with S-SAH. MATERIALS AND METHODS: Out of 406 patients with subarachnoid hemorrhage on brain CT scan, 11 patients confirmed to be S-SAH by angiography and clinical follow-up were examined. We analysed the CT findings of these 11 cases retrospectively. RESULTS: Five patients had only perimesencephalic distribution of hemorrhage:the prepontine, the interped- uncular, and the suprasellar cisterns were involved in 4 cases each, the basal sylvian cistern in 3 cases, and the ambient cistern in 2 cases. The quadrigeminal and a portion of the lateral sylvians were also involved in 1 case each. Six patients revealed cisternal hemorrhage extending beyond the perimesencephalic cistern into the ventricles, cortical sulci, and lateral sylvian fissure. Intraventricular hemorrhage was noted in 3 cases of these 6 patients. CONCLUSION: Our study suggests that uncomplicated clinical course and normal anglographic finding are more important than CT distribution of cisternal hemorrhage in diagnosing S-SAH.
