BACKGROUND: The Alberta Stroke Program Early CT Score (ASPECTS) has been used to quantify early ischemic changes on computed tomography (CT) brain scans of acute stroke patients. We sought to assess the reliability of the score when performed in real time as compared with an expert rating performed at a later time point. METHODS: Two hundred fourteen patients presenting with acute ischemic stroke or transient ischemic attack were prospectively recruited if they had a brain CT scan performed within 12 hours of symptom onset. Each scan was read for ASPECTS prospectively by the treating physician and later by 1 expert reader. A weighted kappa statistic was used to determine the interobserver agreement. RESULTS: The median baseline National Institutes of Health Stroke Scale score was 5 (range: 0 to 32) and the median time to CT scan was 152 minutes (range: 22 to 769). The interobserver agreement between ASPECTS performed in real time and expert ASPECTS was substantial (kappa(w)=0.69). The mean difference between real-time ASPECTS and expert ASPECTS was 0 (SD: 1.1). CONCLUSIONS: ASPECTS is a reliable clinical scale for rating early ischemic changes on CT when performed in real time.
BACKGROUND: The Alberta Stroke Program Early CT Score (ASPECTS) has been used to quantify early ischemic changes on computed tomography (CT) brain scans of acute strokepatients. We sought to assess the reliability of the score when performed in real time as compared with an expert rating performed at a later time point. METHODS: Two hundred fourteen patients presenting with acute ischemic stroke or transient ischemic attack were prospectively recruited if they had a brain CT scan performed within 12 hours of symptom onset. Each scan was read for ASPECTS prospectively by the treating physician and later by 1 expert reader. A weighted kappa statistic was used to determine the interobserver agreement. RESULTS: The median baseline National Institutes of Health Stroke Scale score was 5 (range: 0 to 32) and the median time to CT scan was 152 minutes (range: 22 to 769). The interobserver agreement between ASPECTS performed in real time and expert ASPECTS was substantial (kappa(w)=0.69). The mean difference between real-time ASPECTS and expert ASPECTS was 0 (SD: 1.1). CONCLUSIONS: ASPECTS is a reliable clinical scale for rating early ischemic changes on CT when performed in real time.
Authors: Bart M Demaerschalk; Bentley J Bobrow; Rema Raman; Karin Ernstrom; Joseph M Hoxworth; Ameet C Patel; Terri-Ellen J Kiernan; Maria I Aguilar; Timothy J Ingall; David W Dodick; Brett C Meyer Journal: Stroke Date: 2012-09-13 Impact factor: 7.914
Authors: A C Gupta; P W Schaefer; Z A Chaudhry; T M Leslie-Mazwi; R V Chandra; R G González; J A Hirsch; A J Yoo Journal: AJNR Am J Neuroradiol Date: 2012-02-09 Impact factor: 3.825
Authors: David S Liebeskind; Reza Jahan; Raul G Nogueira; Tudor G Jovin; Helmi L Lutsep; Jeffrey L Saver Journal: Stroke Date: 2014-02-13 Impact factor: 7.914
Authors: Amrou Sarraj; Karen Albright; Andrew D Barreto; Amelia K Boehme; Clark W Sitton; Jeanie Choi; Steven L Lutzker; Chung-Huan J Sun; Wafi Bibars; Claude B Nguyen; Osman Mir; Farhaan Vahidy; Tzu-Ching Wu; George A Lopez; Nicole R Gonzales; Randall Edgell; Sheryl Martin-Schild; Hen Hallevi; Peng Roc Chen; Mark Dannenbaum; Jeffrey L Saver; David S Liebeskind; Raul G Nogueira; Rishi Gupta; James C Grotta; Sean I Savitz Journal: Stroke Date: 2013-08-08 Impact factor: 7.914
Authors: Ilana Spokoyny; Rema Raman; Karin Ernstrom; Bart M Demaerschalk; Patrick D Lyden; Thomas M Hemmen; Amy K Guzik; James Y Chen; Brett C Meyer Journal: J Stroke Cerebrovasc Dis Date: 2013-05-19 Impact factor: 2.136