Subtraction Perfusion CT: A Technical Note

• 作者: Chi-Shing Zee Wei Li Xiu-Jun Yang
• 来源期刊: 计算机断层扫描(英文)
• 学科: 医学
• 关键词: TOMOGRAPHY X-RAY COMPUTED PERFUSION Imaging SUBTRACTION Technology SUBTRACTION COMPUTED Tomographic PERFUSION
• 年，卷（期）: 2013,（3）
• 页码范围: 91-95
• 页数: 5页
• 分类号: R73

摘要

It is challenging to attempt to obtain CT perfusion (CTP) images of the hyperdense tissues, which could conceal the density of contrast material during perfusion study. We report a new technique of subtraction CTP (SCTP) to compensate the shortcomings. SCTP post-processed by perfusion software for the data of post-perfusion images subtracting pre-perfusion corresponding images slice by slice in CTP source images is technically feasible without any adverse effects on patients. It provides a new functional imaging with quantitatively hemodynamic indexes of tissue microcirculation and reflects accurately the change of blood flow in tissues and organs.