rCBF
Pronunciation: R-C-B-F
Also written as: rCBF — regional cerebral blood flow
Regional cerebral blood flow measured in neuroimaging studies to assess brain perfusion and metabolism.
Full Definition
Regional cerebral blood flow (rCBF) quantifies blood flow to specific brain regions, typically expressed in milliliters per 100 grams of tissue per minute. This parameter can be measured using various imaging techniques including arterial spin labeling MRI, dynamic susceptibility contrast MRI, CT perfusion, PET, or SPECT. Regional CBF measurements are valuable for assessing cerebrovascular reserve, detecting areas of hypoperfusion in stroke, evaluating dementia patterns, and monitoring treatment response. Normal values vary by brain region and age, with gray matter typically showing higher flow rates than white matter.
Usage
Usage note: Specify measurement technique and units when reporting quantitative values.
In Context
- "ASL imaging demonstrated decreased rCBF in the left temporal lobe consistent with hypoperfusion." — Perfusion MRI report
- "The rCBF maps showed preserved perfusion despite the structural abnormality." — Cerebrovascular reserve study