Computed tomography angiography for the detection and characterization of intra-cranial aneurysms: Current status

Diagnostic Accuracy and Yield of Multidetector CT Angiography in the Evaluation of Spontaneous Intraparenchymal Cerebral Hemorrhage

“…Our results of diagnostic accuracy for MDCTA in the setting of IPH are similar to those reported in prior studies that have assessed the accuracy of this technique for detecting aneurysms and venous sinus thrombosis. [19][20][21] However, our calculated parameters of diagnostic accuracy for MDCTA only measured the presence or absence of a vascular etiology for the IPH; other important features relating to AVMs/AVFs, such as the number and origin of arterial feeders, presence of intranidal and/or feeding artery aneurysms, and the presence of draining vein stenoses and deep versus superficial venous drainage, were not measured. In addition, although 34% of patients in our study population underwent a gold standard examination after MDCTA, patients with a positive CTA were more likely to undergo these examinations (82%) than patients with a negative CTA (25%), which is reflective of the clinical practice of our institution.…”

“…As a result of its increasing availability, rapidity of acquisition, lower cost, favorable risk profile compared with conventional angiography, and diagnostic accuracy for the detection of vascular lesions, [17][18][19][20][21] multidetector CT angiography (MDCTA) is emerging as the favored initial diagnostic examination in the evaluation of patients presenting with spontaneous IPH in the emergency department. This study aims to evaluate the diagnostic accuracy and yield of MDCTA for the detection of vascular etiologies in adult patients presenting to the emergency department with spontaneous IPH.…”

Negative CT Angiography Findings in Patients with Spontaneous Subarachnoid Hemorrhage: When Is Digital Subtraction Angiography Still Needed?

“…Multisection CT scanners such as the 64-section scanner enable isotropic imaging, which provides high-resolution 3D reconstructions and further shortened acquisition time. 1 Recently Agid et al 2 evaluated the efficacy of 64-section CTA in detecting the cause of acute SAH and its ability to display the vascular anatomy for choosing the appropriate treatment. It was shown that CTA is useful in deciding whether to coil or clip an aneurysm.…”

Can Computed Tomography Angiography of the Brain Replace Lumbar Puncture in the Evaluation of Acute‐onset Headache After a Negative Noncontrast Cranial Computed Tomography Scan?

“…28 Multiple other studies of 16-, four-, and single-detector CTA indicate similar sensitivities and specificities (see Table 3). [28][29][30][31][32] All of these studies include patients with variable levels of mental status and neurologic exam findings who have a diagnosis of SAH by CT or LP. We selected the study by Agid et al 28 because it utilized 64-detector technology.…”