Pivotal role of multiphase computed tomography angiography for collateral assessment in patients with acute ischemic stroke.
Radiol Med
; 128(8): 944-959, 2023 Aug.
Article
en En
| MEDLINE
| ID: mdl-37351771
ABSTRACT
The cerebral collateral circulation is the main compensatory mechanism that maintains the ischemic penumbra viable, the tissue at risk for infarction that can be saved if blood flow is restored by reperfusion therapies. In clinical practice, the extent of collateral vessels recruited after vessel occlusion can be easily assessed with computed tomography angiography (CTA) using two different techniques single-phase CTA (sCTA) and multi-phase CTA (mCTA). Both these methodologies have demonstrated a high prognostic predictive value for prognosis due to the strong association between the presence of good collaterals and favorable radiological and clinical outcomes in patients with acute ischemic stroke (AIS). However, mCTA seems to be superior to sCTA in the evaluation of collaterals and a promising tool for identifying AIS patients who can benefit from reperfusion therapies. In particular, it has recently been proposed the use of mCTA eligibility criteria has been recently proposed for the selection of AIS patients suitable for endovascular treatment instead of the current accepted criteria based on CT perfusion. In this review, we analyzed the characteristics, advantages and disadvantages of sCTA and mCTA to better understand their fields of application and the potential of mCTA in becoming the method of choice to assess collateral extent in AIS patients.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Isquemia Encefálica
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Accidente Cerebrovascular
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Accidente Cerebrovascular Isquémico
Tipo de estudio:
Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Radiol Med
Año:
2023
Tipo del documento:
Article
País de afiliación:
Italia