Improvement of 89Sr and 90Y bremsstrahlung emission computed tomography

89Sr 和 90Y 轫致辐射计算机断层扫描的改进

• 批准号: 23591778
• 负责人: ITO SHIGEKI
• 金额: $ 3.33万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23591778/
• 关键词: 放射線治療; 核医学; ＳＰＥＣＴ; 放射線、Ｘ線、粒子線; 放射免疫療法; 90Y; 制動Ｘ線; 3次元画像化; ３次元画像; 骨転移; 疼痛緩和治療; ３次元画像化; 制動X線; 画像解析; 線量測定

Strontium-89 bremsstrahlung emission computed tomography (BECT) images of patients were obtained by use of multiple energy windows of a gamma camera. Yttrium -90 BECT images after subtraction of 111In Single photon mission computed tomography images were also obtained by use of the 3 dimensional ordered subsets expectation maximization method, attenuation correction method, and resolution correction. The lower detection limit of 90Y-BECT was approximately 42 kBq/mL.

利用γ照相机的多个能量窗获得患者的89锶韧致辐射发射计算机断层扫描（BECT）图像。 利用三维有序子集期望最大化法、衰减校正法和分辨率校正法，获得了钇-90 BECT与111 In单光子使命CT减影后的图像。90 Y-BECT的检测下限约为42 kBq/mL。