Why the study?
Does CT perfusion improve the diagnosis of delayed cerebral ischemia compared to noncontrast CT and CT angiography in patients with subarachnoid hemorrhage with clinical deterioration?
Population
42 patients with subarachnoid hemorrhage with clinical deterioration suspect for delayed cerebral ischemia…
Comparison
Noncontrast CT, CT perfusion, and CT angiography… vs Clinical diagnosis of delayed cerebral ischemia…
Design
Cohort, Radiologists interpreted imaging blinded to clinical diagnosis…
Follow-up
within 21 days after hemorrhage
Authors
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May support CT perfusion for delayed cerebral ischemia diagnosis in subarachnoid hemorrhage; leaves open prospective validation before practice change.
Does CT perfusion improve the diagnosis of delayed cerebral ischemia compared to noncontrast CT and CT angiography in patients with subarachnoid hemorrhage with clinical deterioration?
CT perfusion provides superior diagnostic accuracy compared to noncontrast CT and CT angiography for detecting delayed cerebral ischemia in patients with subarachnoid hemorrhage.
Dankbaar et al. (2009) studied this question.
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