Improved diagnosis of actively bleeding aneurysm on CT angiography using delayed CT images.
Computed tomographic angiography (CTA) is being increasingly utilized in the non-invasive diagnosis of aneurysmal subarachnoid hemorrhage (SAH). There are emerging reports of diagnosis of active aneurysmal bleeding on CTA, furthering our understanding of imaging features of active extravasation on cross-sectional studies. We demonstrate imaging characteristics of two such cases of active contrast extravasation from intracranial aneurysms. Additionally, we demonstrate that delayed CT images greatly improve the confidence of this diagnosis by demonstrating pooling of contrast in the subarachnoid space. Prompt recognition and management can improve prognosis of this potentially lethal condition.
Kathuria
Sudhir
S
Division of Interventional Neuroradiology, Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States. skathur2@jhmi.edu
Deveikis
John P
JP
Westesson
Per-Lennart
PL
Gandhi
Dheeraj
D
D000058:Accidental Falls; D000368:Aged; D017542:Aneurysm, Ruptured / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D002533:Cerebral Angiography / Q000379:methods*; D002648:Child; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D008297:Male; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy; D014057:Tomography, X-Ray Computed / Q000379:methods*