MRI demonstrates encouraging diagnostic performance for detecting perfusion defects and chronic thromboembolic material in CTEPH, with MRI perfusion offering high sensitivity and ce-MRA showing high specificity. Non-contrast MRA adds value for proximal vessel assessment when used alongside ce-MRA. However, methodological limitations and study heterogeneity constrain the certainty of existing evidence. Larger, standardised prospective studies are needed to define the precise role of MRI within contemporary CTEPH diagnostic pathways.
Tai et al. (Sun,) studied this question.