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）开展动态PET灌注测量的标准采集工作，所用载体为动态测试体模（dynamic test object，又称流动体模flow phantom）。图像采集遵循本项目D2文档中所述的实验方案，相关链接如下。解压该数据集后，将得到一系列遵循<em>SCANTYPE_PERCENTAGEFLOW_TOTALFLOW_FLOWINTUBE_RECONSTRUCTIONTYPE</em>命名规则的子文件夹。该命名规则对应实验设计中我们调整的多项参数，具体说明如下：
SCANTYPE：扫描类型，示例中的"PT"代表PET；
PERCENTAGEFLOW：流入体模主舱的血流占比，示例中该取值可为20%、40%、60%或80%；
TOTALFLOW：流量泵设定的总流速，示例中可为150、200或250 ml/min；
FLOWINTUBE：流入输入管路的流量（区别于流入体模主舱的流量），即总流量减去主舱流量；
RECONSTRUCTION TYPE：PET图像重建算法，示例中可为BSREM或OSEM。
每个子文件夹内均存储有以".dcm"格式保存的动态图像序列。上述图像可通过下方GitLab仓库中提供的软件工具进行处理。