Low Dose CT Image and Projection Data (LDCT-and-Projection-data)

Investigators at the Mayo Clinic, with funding from the National Institute of Biomedical Imaging and Bioengineering (EB 017095 and EB 017185), have built a library of CT patient projection data in an open and vendor-neutral format. This format, referred to as DICOM-CT-PD (1), is an extended DICOM format that contains CT projection data and acquisition geometry. The de-identified patient projection data in the library were decoded with help of the manufacturer and have been converted into an open standardized format. Reconstructed images, patient age and gender, and pathology annotation are also provided for these de-identified data sets. The library consists of scans from various exam types, including non-contrast head CT scans acquired for acute cognitive or motor deficit, low-dose non-contrast chest scans acquired to screen high-risk patients for pulmonary nodules, and contrast-enhanced CT scans of the abdomen acquired to look for metastatic liver lesions.

梅奥诊所（Mayo Clinic）的研究人员在美国国家生物医学成像与生物工程研究所（National Institute of Biomedical Imaging and Bioengineering，资助号EB 017095与EB 017185）的资助下，构建了一个采用开放且厂商中立格式的CT患者投影数据数据库。该格式被称为DICOM-CT-PD（参考文献1），是一种扩展的医学数字成像与通信（Digital Imaging and Communications in Medicine，DICOM）格式，可存储CT投影数据与采集几何信息。数据库内的已去标识患者投影数据已在厂商协助下完成解码，并转换为开放标准化格式。针对这些已去标识的数据集，一并提供了重建图像、患者年龄与性别信息，以及病理标注内容。该数据库涵盖多种检查类型的扫描数据，包括用于急性认知或运动功能障碍诊断的平扫头部CT扫描、用于高危患者肺结节筛查的低剂量平扫胸部CT扫描，以及用于排查肝脏转移性病灶的增强腹部CT扫描。

搜集汇总

背景与挑战

背景概述

该数据集是一个由梅奥诊所创建的低剂量CT图像和投影数据集合，采用开放的DICOM-CT-PD格式，包含去标识化的患者投影数据、重建图像、患者年龄和性别以及病理注释。数据集涵盖多种CT扫描类型，如头部、胸部和腹部扫描，旨在支持医学影像研究，特别是低剂量CT技术的应用。