DE-CMR and MPS for assessment of myocardial viability: to what extent do the two techniques agree?
نویسندگان
چکیده
Background DE-CMR (gadolinium contrast enhanced cardiac magnetic resonance imaging) and MPS (nuclear myocardial perfusion scanning) are two widely used techniques to assess myocardial ‘viability’. However each evaluates different aspects of the myocardium where MRI examines scar burden whilst resting MPS assesses respiring myocytes. DE-CMR offers better spatial and temporal resolution, but requires breath holding. MPS artefacts can result from attenuation and tracer energy differences. Both techniques are limited by gating and partial volume. We investigated the agreement between the two modalities when assessing myocardial viability, in particular the effect of wall thickening assessed on MPS.
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