-----------ARTICLE INFORMATION-------------- JOURNAL: Medical Physics AUTHORS: Franco Rupcich, Iacovos Kyprianou, Andreu Badal, and Taly Gilat Schmidt TITLE: A database for estimating organ dose for coronary angiography and brain perfusion CT scans for arbitrary spectra and angular tube current modulation CONTACT INFORMATION: Please email any comments, questions, or concerns to: Franco Rupcich franco.rupcich@.mu.edu -----------DEPOSIT INFORAMATION--------------- TOTAL NUMBER OF FILES (INCLUDING README): 27 DESCRIPTION: This is a readme file explaining the format of the normalized dose deposition tables. In total, there are 26 26.txt files, each corresponding to a specific organ (or in some cases a material comprising several organs with similar tissue types). Each file is tab-delimited ascii format, with 1000 rows and 146 columns. Each row represents a projection angle between 0 and 360 degrees in 0.36 degree increments. Projection angle 1 (i.e., 0 degrees) represents the anterior-posterior projection; projection angle 250 (i.e., 90 degrees) represents the lateral projection from the phantom's left side to the right side. Each column represents a monoenergetic energy level between 5 and 150 keV in 1 keV increments. To calculate the dose to a specific organ, multiply each value in the table by the number of photons at that monoenergy and at that projection angle and then sum all of the values. Thus, the organ dose is the linear combination of the values in corresponding dose table, with the weighting factors determined by the spectrum and number of photons at each view angle. For more detailed instructions, please refer to our published paper. F. Rupcich, A. Badal, I. Kyprianou, T. G. Schmidt, `A database for estimating organ dose for coronary angiography and brain perfusion CT scans for arbitrary spectra and angular tube current modulation,' Medical Physics, 39 (9), pp. 5336-5346, 2012. The following lists each phantom and the dose tables associated with that phantom, as well as the organ/tissues that each dose table represents. Chest phantom: chest_bone.txt --> bone, vertebrae chest_breast.txt --> breast chest_esophagus.txt --> esophagus chest_heart.txt --> heart wall chest_lung.txt --> lung chest_rbm.txt --> red marrow chest_skin.txt --> skin chest_muscle.txt --> muscle Head phantom: head_bone.txt --> bone, mandible, patella, skull, vertebrae head_brain_gray.txt --> gray matter, hippocampus, thalamus head_brain_white.txt --> white matter, commissura anterior, commissura posterior head_brain_average.txt --> cerebellum, medulla oblongata, midbrain, pons head_eyelens.txt --> eye lens head_skin.txt --> skin head_muscle.txt --> muscle head_rbm.txt --> red marrow Tilted head phantom: Same as head phantom, but with prefix "headtilt" CTDIvol Chest phantom: ctdivol_chest.txt --> CTDIvol for a standard CTDI chest phantom CTDIvol Head phantom: ctdivol_head.txt --> CTDIvol for a standard CTDI head phantom