2021_EM_Reconstructed_SPECT_Subset_30

COLLECTION TITLE:2021_MezzengaEmilio_Collection1CATEGORY:Medical PhysicsKEYWORDS:SPECT/CT; 3D-OSEM reconstruction; radiomics; lutetium; calibration phantom.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"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. MAIN CONTACT:- Emilio Mezzenga, Medical Physics Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori “Dino Amadori”, Meldola, Italy.Email: [e-mail]:* 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.数据集标题：2021_MezzengaEmilio_Collection1 分类：医学物理学 关键词：单光子发射计算机断层扫描/计算机断层成像（SPECT/CT）；三维有序子集期望最大化（3D-OSEM）重建；放射组学；镥；校准体模。 使用本数据集文件时，请引用以下文献："E. Mezzenga等人. 用于校准与纹理分析的镥-177均匀圆柱体模的SPECT重建图像. 2021" 文件命名规则：本数据集所有文件均遵循以下命名规范： 1. "未重建原始数据（Starting_data_not_reconstructed）"：该文件夹包含两个子文件夹，分别分隔存储体模的SPECT与CT采集数据。其中CT文件夹命名为“CT_data”，SPECT文件夹命名为“SPECT_data”。在CT_data文件夹中，体模的CT序列文件命名格式为“CTxxx.dcm”，其中xxx取值为001、002、…、108。在SPECT_data文件夹中，包含3个与SPECT采集相关的医学数字成像和通信（Digital Imaging and Communications in Medicine，DICOM）文件，分别为三窗采集文件（"TW.dcm"）、低散射窗文件（"LScW.dcm"）与高散射窗文件（"HScW.dcm"）。其中TW文件包含全部三个采集窗（即光峰窗、高散射窗与低散射窗），LScW与HScW文件分别对应低散射与高散射采集窗的数据。 2. "重建数据（Reconstructed_data）"：该文件夹包含两个与重建数据集相关的子文件夹，分别为各向同性CT重建数据集（命名为“Isotropic_CT”）与各向同性SPECT采集重建数据集（命名为“Isotropic_NM”），二者的体素尺寸一致。在Isotropic_CT文件夹中，CT重建文件的命名格式为“IsotropicCT001_CTyyy.dcm”，其中yyy取值为001、002、…、182。在Isotropic_NM文件夹中，包含5个子文件夹，每个子文件夹对应SPECT图像重建过程中使用的子集数量，命名格式为“zz_SUBSETS”，其中zz取值为05、10、15、20与30。每个子文件夹内包含对应子集数量下、不同迭代次数的SPECT重建图像，命名格式为“IsotropicNMxxSyyI_DS.dcm”，其中xx取值为05、10、15、20与30，yy取值为01、02、03、04、05、06、07、10、15、20、25、30、35、40、45、50。 主要联系人：Emilio Mezzenga，意大利梅尔多拉IRCCS罗马涅肿瘤研究所“迪诺·阿马多里”（IRCCS Istituto Romagnolo per lo Studio dei Tumori “Dino Amadori”）医学物理组。邮箱：[e-mail] 版权声明： * 版权所有 © 2021 * 意大利IRCCS IRST梅尔多拉分所 * 保留所有权利。 ** 本材料遵循知识共享署名4.0（CC BY 4.0）协议，可自由分发与修改。 ** 本材料按“现状”提供，不附带任何明示或暗示的担保，包括但不限于适销性或特定用途适用性的担保。