title: Determination of new European biometric equations for the calibration of in vivo lung counting systems using the Livermore phantom.
abstract: New biometric equations used for assessing the thickness of the overlay plate to be added to the physical phantom were determined based on the Computed Tomography (CT) chest images of 33 adult males in order to improve the calibration of in vivo lung counting systems using the Livermore phantom. These equations are specific to systems composed of four germanium detectors with the measured subject in supine position. A comparison with the biometric equations used to date as reference in France was carried out and proved the usefulness of equations directly applicable to the Livermore phantom.
authors.affiliation: Institute of Radiological Protection and Nuclear Safety-IRSN, Radiological Protection and Human Health Division, Internal Dosimetry Department, IRSN/DRPH/SDI, B.P. 17, F-92262 Fontenay-aux-Roses Cedex, France.
authors.forename: N
authors.initials: N
authors.lastname: Pierrat
authors.forename: G
authors.initials: G
authors.lastname: Prulhiere
authors.forename: L
authors.initials: L
authors.lastname: de Carlan
authors.forename: D
authors.initials: D
authors.lastname: Franck
mesh_terms: D000465:Algorithms; D001681:Biological Assay / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D001699:Biometry / Q000295:instrumentation* / Q000379:methods; D002138:Calibration; D002140:California; D003198:Computer Simulation; D004781:Environmental Exposure / Q000032:analysis*; D006801:Humans; D008168:Lung; D008954:Models, Biological; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D011835:Radiation Protection / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity