Estimation of mean transit times from semiquantitative indices derived from standard renograms
J H Amuasi; J C W Crawley; N Veall; H A Wilkins; A G Cronquist; J H Amuasi; Radioisotopes Div., MRC Clinical Res. Centre, Harrow, UK; J C W Crawley; Radioisotopes Div., MRC Clinical Res. Centre, Harrow, UK; N Veall; Radioisotopes Div., MRC Clinical Res. Centre, Harrow, UK; H A Wilkins; Radioisotopes Div., MRC Clinical Res. Centre, Harrow, UK; A G Cronquist; Radioisotopes Div., MRC Clinical Res. Centre, Harrow, UK
Журнал:
Clinical Physics and Physiological Measurement
Дата:
1983-05-01
Аннотация:
Statistical analysis has been used to find the best relationship between mean transit time calculated from corrected (blood-background subtracted) renograms and empirical indices measured directly from the standard renogram. The best formula of those compared for estimating mean transit time when both time-to-peak and % maximum activity at 15 min are known is Y=0.17+0.49X<sub>1</sub>+0.003X<sub>2</sub>, where Y is a dependent variable and X<sub>1</sub> and X<sub>2</sub> are predictor variables.
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