radioimmunoassay

radioisotope dilution technique

radioligand assay

radionuclide imaging

absorptiometry, photon

radioimmunodetection

radionuclide angiography

radioisotope renography

radionuclide ventriculography

gated blood-pool imaging

ventriculography, first-pass

tomography, emission-computed

positron-emission tomography

tomography, emission-computed, single-photon

schilling test