TracPETperf-D2-PhantomExperiments2

The objective of this study was to perform a standard acquistion of dynamic PET perfusion measurements at the Turku PET centre using a dynamic test object (also known as a flow phantom). Images were acquired following the experimental protocol described in D2 of this project which is linked below. Once unzipped. there is a list of subfolders that are named using the convention <em>SCANTYPE_PERCENTAGEFLOW_TOTALFLOW_FLOWINTUBE_RECONSTRUCTIONTYPE</em> This naming convention describes and relates to some of the factors that we are varying in the experimental design protocol, specifically: SCANTYPE: type of scan; in the example “PT” stands for PET PERCENTAGEFLOW: percentage of flow going into the phantom main compartment; in the example, this value can be 20, 40, 60 or 80 %. TOTALFLOW: total flow rate set at the flow pump; in the example, it can be 150, 200 or 250 ml/min. FLOWINTUBE: the flow that goes into input tube as opposed to that going into the main compartment TOTALFLOW - COMPARTMENTFLOW RECONSTRUCTION TYPE: PET image reconstruction algorithm; in the example, it can be BSREM or OSEM Within each folder there is a dynamic sequence of images, stored as “.dcm” These images can be processed using the sofware tool provided in the GitLab repo with link below.本研究的目标是在图尔库PET中心（Turku PET Centre）利用动态测试体模（又称流动体模，flow phantom）开展标准的动态PET（Positron Emission Tomography）灌注测量采集工作。图像采集遵循本项目D2部分所载的实验方案，相关链接如下。 解压后将得到一系列子文件夹，其命名遵循<em>SCANTYPE_PERCENTAGEFLOW_TOTALFLOW_FLOWINTUBE_RECONSTRUCTIONTYPE</em>的格式规范。该命名规则对应并体现了本实验设计方案中我们设置的部分可变参数，具体说明如下： - 扫描类型（SCANTYPE）：指扫描的类别；示例中的“PT”代表PET。 - 流量占比（PERCENTAGEFLOW）：流入体模主舱的流量占比；本数据集的该参数取值可为20%、40%、60%或80%。 - 总流量（TOTALFLOW）：流量泵设定的总流速；本数据集的该参数取值可为150、200或250 ml/min。 - 管路流量（FLOWINTUBE）：流入输入管路的流量，与流入主舱的流量相对，计算公式为总流量减去舱室流量（TOTALFLOW - COMPARTMENTFLOW）。 - 图像重建类型（RECONSTRUCTION TYPE）：PET图像重建算法；本数据集的该参数取值可为BSREM或OSEM。 每个子文件夹内均包含一组动态图像序列，以".dcm"格式存储。可通过下方链接的GitLab仓库中提供的软件工具对这些图像进行处理。