PT  - JOURNAL ARTICLE
AU  - Makler, P. T.
AU  - McCarthy, David M.
AU  - Bergey, Philip
AU  - Marshall, Kenneth
AU  - Bourne, Mark
AU  - Velchik, Michael
AU  - Alavi, Abass
TI  - Multiple-Hospital Survey of Ejection-Fraction Variability Using a Cardiac Phantom
DP  - 1985 Jan 01
TA  - Journal of Nuclear Medicine
PG  - 81--84
VI  - 26
IP  - 1
4099  - http://jnm.snmjournals.org/content/26/1/81.short
4100  - http://jnm.snmjournals.org/content/26/1/81.full
SO  - J Nucl Med1985 Jan 01; 26
AB  - A dynamic cardiac phantom was used to provide identical input data at 11 different nuclear medicine laboratories throughout the Philadelphia area, and the variability in the resulting calculations of ejection fraction (EF) was assessed. The variability observed between different operators using the same computer system averaged 3 EF units, which was similar to that between different observers using different types of computers. In the range of low ejection fractions, however, there was a suggestion that EFs calculated with an MDS computer were slightly lower than those from a DEC computer.