PT - JOURNAL ARTICLE AU - Jeffry Spackman AU - Marjorie E. Bartlett AU - LeeAnn Ryals AU - Marsha Eklem AU - Susan Gilbert AU - Shakuntala Krishnamurthy AU - Gerbail T. Krishnamurthy TI - Reproducibility of Technetium-99m Mebrofenin Hepatic Functional Parameters Obtained with Semi-Automatic Software DP - 1991 Dec 01 TA - Journal of Nuclear Medicine Technology PG - 228--231 VI - 19 IP - 4 4099 - http://tech.snmjournals.org/content/19/4/228.short 4100 - http://tech.snmjournals.org/content/19/4/228.full SO - J. Nucl. Med. Technol.1991 Dec 01; 19 AB - The reliability of quantitative measurement of two hepatobiliary functional parameters using semi-automatic computer software was tested for reproducibility within and between institutions in an academic and a community hospital. Hepatic extraction fraction (HEF) and excretion half-time (t½) values in ten normal controls and eleven patients were determined independently by two technologists from the same institution and one technologist from a different institution. HEF and excretion t½ values were obtained using semi-automatic nuclear hepatology software and were then compared using the paired t-test to determine their reproducibility. There was no difference in the HEF or excretion t½, values obtained independently by the three technologists. We conclude that results obtained using semi-automatic computer software for quantitative nuclear hepatology with technetium-99m IDA agents are highly reproducible and should be used routinely as a supplement to hepatobiliary imaging studies.