Regional leptomeningeal collateral score by computed tomographic angiography correlates with 3-month clinical outcome in acute ischemic stroke.

Autor: Chatterjee D; Department of Radio-Diagnosis, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India., Nagarajan K; Department of Radio-Diagnosis, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India., Narayan SK; Department of Neurology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India., Narasimhan RL; Department of Neurology, Institute of Neurology, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, Tamil Nadu, India.
Jazyk: angličtina
Zdroj: Brain circulation [Brain Circ] 2020 Jun 26; Vol. 6 (2), pp. 107-115. Date of Electronic Publication: 2020 Jun 26 (Print Publication: 2020).
DOI: 10.4103/bc.bc_55_19
Abstrakt: Purpose: The aim of the study is to assess the correlation between regional leptomeningeal collateral (rLMC) Scores calculated on computed tomography (CT) angiography following acute anterior circulation ischemic stroke, with 3-month clinical outcome measured as modified Rankin Scale (mRS) and Barthel Index (BI).
Materials and Methods: A total of thirty patients were studied as per the exclusion and inclusion criteria and after informed consent. Multi-phase CT angiography was carried out within 24 h of stroke onset, and collateral scoring was done using rLMC score along with Alberta stroke programme early CT (ASPECT) scoring. At 3 months, patients were followed up to evaluate the clinical outcome using mRS and BI. Statistical analysis was performed to find out the correlation between rLMC score, ASPECT score, and clinical outcome and for association with demographic parameters and stroke risk factors.
Results: A strong correlation was noted between ASPECT and rLMC scores ( P < 0.001) and between rLMC scores and clinical outcome at 3 months (mRS and BI). Correlation with mRS ( P < 0.001) was nearly as strong as that of BI on follow-up ( P < 0.001). The ASPECT score also was a predictor of clinical outcome and showed correlation with mRS ( P < 0.001) and BI ( P < 0.001). No significant association was found between various stroke risk factors and demographic parameters with rLMC scores. The rLMC scoring system showed substantial inter-rater reliability with Kappa = 0.7.
Conclusions: rLMC score in CT angiography correlates with ASPECT Score and clinical outcome at 3 months. Hence, this scoring system can be used for collateral quantification as may be of use in predicting short-term clinical outcomes.
Competing Interests: There are no conflicts of interest.
(Copyright: © 2020 Brain Circulation.)
Databáze: MEDLINE