Cardiomyopathies may be assessed by both MR and MDCT, although MR has the advantage at present of both better temporal and contrast resolution. Cine MR or CT images in the short axis can be used to assess wall motion, ejection fraction, stroke volume, and myocardial mass. Delayed MR contrast-enhanced imaging can be used to assess for fibrosis and some infiltrative processes. In theory, delayed contrast-enhanced CT could also be used for this purpose; however, there has been little experience with delayed contrast-enhanced CT, and this has principally been with MI. In MRI, cine techniques can be used to assess peak filling rates (PFR), which can be used as a measure of diastolic dysfunction
*** MRI: may be performed to comprehensively evaluate the presence of hypertrophic cardiomyopathy, thereby allowing detailed simultaneous mapping of regional function, anatomy, and tissue scarring with precise registration.
*** MSCT: an excellent method for observing irregular wall hypertrophy, apical morphology, and wall motion dynamics. This modality is seldom used, however, because it entails exposure to radiation and contrast medium and provides less information than MRI.
Plz read more Imaging in Hypertrophic Cardiomyopathy
