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Impact of the inversion time on regional brain perfusion estimation with clinical arterial spin labeling protocols.

Francesco SanvitoFulvia PalesiElisa RognoneLeonardo BarzaghiLudovica PascaGiancarlo GermaniValentina De GiorgisRenato BorgattiClaudia A M Gandini Wheeler-KingshottAnna Pichiecchio
Published in: Magma (New York, N.Y.) (2021)
TI influences ASL perfusion estimates with a region-dependent effect. The presence of intraluminal arterial signal in PTAs and the longer arterial transit time in the DTAs (including watershed areas) may account for the TI-dependent differences. Watershed areas exhibiting a lower perfusion signal at short TIs (~ 1500 ms) should not be misinterpreted as focal hypoperfused areas.
Keyphrases
  • contrast enhanced
  • magnetic resonance imaging
  • mass spectrometry
  • magnetic resonance
  • computed tomography
  • white matter
  • ms ms
  • room temperature
  • single molecule
  • cerebral blood flow