Abstract
Computed tomography is a highly effective method of detecting subarachnoid blood if performed early after aneurysmal rupture, being 95% to 98% positive when lumbar puncture is positive. The localization of the blood defines the location of the aneurysm in approximately 80% of cases. Contrast enhanced computed tomography demonstrates the aneurysm in 75% of cases with the aneurysm is greater than 5 millimeters in size. Computed tomography angiography defines the aneurysm in up to 96% of cases. The amount of subarachnoid blood correlates with the development of vasospasm; cerebral perfusion can be further evaluated with xenon-enhanced computed tomography.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 693-708 |
| Number of pages | 16 |
| Journal | Neuroimaging Clinics of North America |
| Volume | 7 |
| Issue number | 4 |
| State | Published - 1997 |
| Externally published | Yes |
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Clinical Neurology
- Radiological and Ultrasound Technology