ACT  Vol.2 No.3 , September 2013
Subtraction Perfusion CT: A Technical Note
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.
Cite this paper: Yang, X. , Li, W. and Zee, C. (2013) Subtraction Perfusion CT: A Technical Note. Advances in Computed Tomography, 2, 91-95. doi: 10.4236/act.2013.23016.

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