Dynamic evaluation of unruptured intracranial aneurysms by 4D-CT angiography: comparison with digital subtraction angiography (DSA) and surgical findings

Table 3 Frequency of location of UIAs in 4D-CTA

				No. of patients (%)
	CTA		CTAa	DSA	Agreement between CTA and DSA
Aneurysmal location	Reader 1	Reader 2
MCA-M1	8	8	8	8	46/46(100%)
MCA-M2	6	6	6	6
AccomA	10	10	10	10
PcomA	8	8	8	8
Distal ACA	2	2	2	2
IC-PC	6	6	6	6
IC-AChA	4	4	4	4
Basilar tip	2	2	2	2
Total	46	46	46	46

4D-CTA Four-dimensional CT angiography; UIAs Unruptured intracranial aneurysms; No. of patients The number of patients; CTAa Interpretations of both readers for CTA were identical, MCA-MI The M1 portion of the middle cerebral; MCA-M2 The M2 portion of the middle cerebral; AcomA The anterior communicating artery; PcomA The posterior communicating artery; Distal ACA The distal anterior cerebral artery; IC-PC The internal carotid artery-posterior communicating artery; IC-AChA The internal carotid artery-anterior choroidal artery

ISSN: 1471-2342