Abstract
ECG-gated single-photon emission-computed tomography of the intracardiac blood pool is a new technique that has not previously been widely applied. It involves the acqusition of ECG-gated images of the intracardiac blood pools labelled with sodium pertechnetate Tc 99m in 32 projections around the left-anterior hemithorax using a rotating gamma camera. From these images, tomographic sections are reconstructed orthogonal to the long axis of the left ventricle. The heart is therefore imaged three dimensionally, and more extensive information is obtained than in planar radionuclide ventriculography where imaging is usually restricted to only a single projection. Both structure and function can be studied, and the left-ventricular volume and ejection fraction, and wall motion are obtained. Of 50 patients studied, 7 cases are illustrated in order to show normal findings, examples of wall motion that were not shown by planar-contrast and radionuclide ventriculography, examples of the localisation of ventricular hypertrophy, and a comparison between blood-pool and 201TI myocardial tomography.
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This work was supported by the Sir Jules Thorn Charitable Trust
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Underwood, S.R., Walton, S., Ell, P.J. et al. Gated blood-pool emission tomography: A new technique for the investigation of cardiac structure and function. Eur J Nucl Med 10, 332–337 (1985). https://doi.org/10.1007/BF00251306
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DOI: https://doi.org/10.1007/BF00251306