ASL Quantification : QUIPSS , single TI and multi
نویسنده
چکیده
Details of the acquisition protocol can cause unwanted signal in the difference image that is unrelated to perfusion, for example magnetization transfer differences between label and control images. Patient motion can also contribute. Likewise, some true perfusion signal can be missed, for example the passage of non-labeled blood due to the restricted spatial extent of labeling. For the purpose of this review, it is assumed that the signal in the difference image contains contributions from all perfusing blood, and only from perfusing blood (i.e., ignoring the non-perfusion and missed perfusion contributions described above).
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