IDAC-Dose1.0 (Internal Dose Assessment by Computer) was created by Prof. Lennart Johansson at Umeå University in 1987 and is the sanctioned software by the International Commission of Radiation Protection (ICRP) to estimate the radiation risk for diagnosic examinations in nuclear medicine at hospitals. The software has been used to perform dose calculations from different radiopharmaceuticals in ICRP Publication 53, 62, 80, 106 and 128.

A new version, IDAC-Dose2.1, was developed based on the ICRP specific absorbed fractions and computational framework of internal dose assessment given for reference adults in ICRP Publication 133. The software uses the radionuclide decay database of ICRP Publication 107 and considers 83 different source regions irradiating 47 target tissues, defining the effective dose as presented in ICRP Publications 60 and 103.

IDAC takes cumulated activities (total number of disintegrations) per administrerad activity in hours and calculates the absorbed dose and the effective dose. IDAC-Dose2.1 has the possibility to calculate absorbed dose from 1252 different radionuclides of 97 elements.The computer software bases the dose estimations on the latest ICRP SAF values and implements the computational framework for internal dose assessment already used by ICRP. The software is suitable for patients in nuclear medicine.

To cite the software please use the reference below: ”Andersson M., Johansson L., Eckerman K. and Mattsson S. IDAC-Dose 2.1, an internal dosimetry program for diagnostic nuclear medicine based on the ICRP adult reference voxel phantoms. EJNMMI Research 2017”