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has been cited by the following article:

• TITLE: Subtraction Perfusion CT: A Technical Note

  AUTHORS: Xiu-Jun Yang, Wei Li, Chi-Shing Zee

  KEYWORDS: Tomography; X-Ray Computed; Perfusion Imaging; Subtraction Technology; Subtraction Computed Tomographic Perfusion

  JOURNAL NAME: Advances in Computed Tomography, Vol.2 No.3, September 13, 2013

  ABSTRACT: 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.