Topographic distribution of cerebral infarct probability in patients with acute ischemic stroke: mapping of intra-arterial treatment effect.
J Neurointerv Surg
; 9(5): 431-436, 2017 May.
Article
em En
| MEDLINE
| ID: mdl-27112775
ABSTRACT
BACKGROUND:
Since proof emerged that IA treatment (IAT) is beneficial for patients with acute ischemic stroke, it has become the standard method of care. Despite these positive results, recovery to functional independence is established in only about one-third of treated patients. The effect of IAT is commonly assessed by functional outcome, whereas its effect on brain tissue salvage is considered a secondary outcome measure (at most). Because patient and treatment selection needs to be improved, understanding the treatment effect on brain tissue salvage is of utmost importance.OBJECTIVE:
To introduce infarct probability maps to estimate the location and extent of tissue damage based on patient baseline characteristics and treatment type.METHODS:
Cerebral infarct probability maps were created by combining automatically segmented infarct distributions using follow-up CT images of 281 patients from the MR CLEAN trial. Comparison of infarct probability maps allows visualization and quantification of probable treatment effects. Treatment impact was calculated for 10 Alberta Stroke Program Early CT Score (ASPECTS) and 27 anatomical regions.RESULTS:
The insular cortex had the highest infarct probability in both control and IAT populations (47.2% and 42.6%, respectively). Comparison showed significant lower infarct probability in 4 ASPECTS and 17 anatomical regions in favor of IAT. Most salvaged tissue was found within the ASPECTS M2 region, which was 8.5% less likely to infarct.CONCLUSIONS:
Probability maps intuitively visualize the topographic distribution of infarct probability due to treatment, which makes it a promising tool for estimating the effect of treatment.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Mapeamento Encefálico
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Infusões Intra-Arteriais
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Infarto Cerebral
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Isquemia Encefálica
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Acidente Vascular Cerebral
Tipo de estudo:
Clinical_trials
/
Etiology_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Neurointerv Surg
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Holanda