2021_EM_Original_SPECT_Data

COLLECTION TITLE:2021_MezzengaEmilio_Collection1<br>CATEGORY:Medical Physics<br>KEYWORDS:SPECT/CT; 3D-OSEM reconstruction; radiomics; lutetium; calibration phantom.<br>ARTICLE (when using these files, please, cite the following article):"E. Mezzenga et al. Reconstructed SPECT images of 177Lu homogeneous cylindrical phantom used for calibration and texture analysis. 2021"<br>FILE NAMES:All the files in this collection follow this nomenclature: 1. "Starting_data_not_reconstructed"”: the folder contains two subfolders were the SPECT and CT phantom acquisitions are separated.In particular, the CT folder is named “CT_data”, and the SPECT one is named “SPECT_data”. In the former folder, the CT sequence of the phantom is named as: “CTxxx.dcm”, with xxx=001, 002,…, 108.In the latter there are three DICOM files related to the SPECT acquisition.In particular, the triple window (TW) file (“TW.dcm”), the lower scatter window (LScW) file (“LScW.dcm”), and the higher scatter window (HScW) file (“HScW.dcm”).The TW file contains all three acquisition windows (i.e. photopeak, high and low scatter), while LScW and HScW contain the lower and higher scatter acquisition window, respectively.2. "Reconstructed_data":it contains two subfolders related to the reconstructed CT datasets (named: “Isotropic_CT”) and reconstructed SPECT acquisition (named: “Isotropic_NM”).Both reconstructions have the same voxel dimension. In the former folder, the CT reconstructed file are named as: “IsotropicCT001_CTyyy.dcm”, with yyy=001, 002,…, 182.The latter folder contains five subfolders, each one referring to the number of subsets used in the SPECT image reconstruction process, and named “zz_SUBSETS”, with zz=05, 10, 15, 20 and 30. Each subfolder contains the SPECT reconstructed images with the same number of subsets, but different number of iterations and are named as “IsotropicNMxxSyyI_DS.dcm”, with xx=05, 10, 15, 20 and 30, and yy=01, 02, 03, 04, 05, 06, 07, 10, 15, 20, 25, 30, 35, 40, 45, 50. <br>MAIN CONTACT:- Emilio Mezzenga, Medical Physics Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori “Dino Amadori”, Meldola, Italy.Email: [e-mail]<br>COPYRIGHT:* Copyright (c) 2021,* IRCCS IRST Meldola, Italy,* All rights reserved.** This material is free; you can redistribute it and/or modify it under the terms of the CC BY 4.0.* This material is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.