VENTRICOLO DESTRO E RADIOISOTOPI

The non-invasive study of the right ventricle shows most limitation in relation to anatomical variability: this limitation is the main determinant for the absence of reference standards. Radionuclide angiography may be performed by two different approaches ('first pass' and 'blood pool gated' technique), which allow anatomical and particularly functional evaluation of the right ventricle. Limitations, advantages and methodological approach of the two techniques are discussed. Right ventricular ejection fraction, especially exercise ejection fraction and its variation during stress test, remains the principal marker of the functional status. However, a local standardization of techniques and results is mandatory. Perspectives in the evaluation of the right ventricle may be related to SPECT and to ¹²³I-MIBG.