PT  - JOURNAL ARTICLE
AU  - Starling, Mark R.
AU  - Dell'Italia, Louis J.
AU  - Nusynowitz, Martin L.
AU  - Walsh, Richard A.
AU  - Little, William C.
AU  - Benedetto, Anthony R.
TI  - Estimates of Left-Ventricular Volumes by Equilibrium Radionuclide Angiography: Importance of Attenuation Correction
DP  - 1984 Jan 01
TA  - Journal of Nuclear Medicine
PG  - 14--20
VI  - 25
IP  - 1
4099  - http://jnm.snmjournals.org/content/25/1/14.short
4100  - http://jnm.snmjournals.org/content/25/1/14.full
SO  - J Nucl Med1984 Jan 01; 25
AB  - To compare the accuracy of attenuated and attenuation-corrected equilibrium radionuclide angiographic (RNA) left ventricular (LV) volume estimates, we studied 23 consecutive patients with biplane contrast cineangiography (CINE). Attenuated RNA end-diastolic (ED) and end-systolic (ES) volumes were calculated from background-corrected ED and ES counts obtained from hand-drawn regions of interest that were normalized to cardiac cycles processed, frame rate, and blood activity. A simple, geometric attenuation correction was performed to obtain attenuation-corrected RNA LV volumes. The attenuated and attenuation-corrected RNA LV EDV estimates correlated with the CINE LV EDVs; however, the attenuation-corrected RNA LV EDV estimates correlated more closely. Also, the average attenuation-corrected RNA LV EDV did not differ significantly from the mean CINE LV EDV. Attenuated and attenuation-corrected RNA LV ESV estimates also correlated with the CINE LV ESVs, but the attenuation-corrected RNA LV ESV estimates correlated more closely. Also, the average attenuation-corrected RNA LV ESV did not differ significantly from the mean biplane CINE LV ESV.