TY - JOUR T1 - CTA in patients with acute subarachnoid haemorrhage. A comparative study with selective, digital angiography and blinded, independent review. AU - Pedersen,H K, AU - Bakke,S J, AU - Hald,J K, AU - Skalpe,I O, AU - Anke,I M, AU - Sagsveen,R, AU - Langmoen,I A, AU - Lindegaard,K E, AU - Nakstad,P H, PY - 2001/2/13/pubmed PY - 2001/3/14/medline PY - 2001/2/13/entrez SP - 43 EP - 9 JF - Acta radiologica (Stockholm, Sweden : 1987) JO - Acta Radiol VL - 42 IS - 1 N2 - PURPOSE: Minimal- or non-invasive methods replacing intra-arterial digital subtraction angiography (IA-DSA) would be of great importance in patients suffering from acute subarachnoid haemorrhage (SAH). The aims of this study were to compare CTA with IA-DSA in patients with acute SAH, to compare CTA interpretations with those of blinded, independent reviewers and to evaluate improvement in CTA diagnostics after 1 year of experience with CTA. MATERIAL AND METHOD: During 2 years 162 patients with SAH underwent CTA as well as IA-DSA. Independent blinded review of 77 patients was performed for 1 year. RESULTS: Totally 144 aneurysms were demonstrated in 119 patients at IA-DSA, while 43 patients had normal intracranial arteries. Initially 131 aneurysms were detected at CTA while 2 normal, tortuous arteries were misinterpreted as aneurysms, giving a sensitivity of 91% and a specificity of 95%. At independent blinded review the observer agreement was 87% and the kappa value 0.68. CONCLUSION: CTA in SAH is of great value in demonstrating vascular anatomy and the exact size of an aneurysm. However, IA-DSA is still needed for diagnostic evaluation in aneurysms smaller than 5 mm in diameter, especially in those located near bony structures. SN - 0284-1851 UR - https://www.unboundmedicine.com/medline/citation/11167331/CTA_in_patients_with_acute_subarachnoid_haemorrhage__A_comparative_study_with_selective_digital_angiography_and_blinded_independent_review_ DB - PRIME DP - Unbound Medicine ER -