Observer reliability of CT angiography in the assessment of acute ischaemic stroke: data from the Third International Stroke Trial.

ABSTRACT:

Introduction

CT angiography (CTA) is often used for assessing patients with acute ischaemic stroke. Only limited observer reliability data exist. We tested inter- and intra-observer reliability for the assessment of CTA in acute ischaemic stroke.

Methods

We selected 15 cases from the Third International Stroke Trial (IST-3, ISRCTN25765518) with various degrees of arterial obstruction in different intracranial locations on CTA. To assess inter-observer reliability, seven members of the IST-3 expert image reading panel (>5 years experience reading CTA) and seven radiology trainees (<2 years experience) rated all 15 scans independently and blind to clinical data for: presence (versus absence) of any intracranial arterial abnormality (stenosis or occlusion), severity of arterial

SUBMITTER: Mair G 

PROVIDER: S-EPMC4295028 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature