radiocardiogram


Also found in: Medical.

radiocardiogram

[¦rad·ē·ō′kärd·ē·ə‚gram]
(medicine)
An x-ray recording of the variation with time of the concentration of a radioisotope in a heart chamber; usually the radioactive material is injected intravenously.
References in periodicals archive ?
Radiocardiograms: electrical impedance changes in heart in relation to electrocardiograms and heart sounds.