PAT, Parallel acquisition technique
   
পি.এ.টি., সমান্তরাল অর্জন কৌশল
   
并行采集技术
   
روش اخذ موازی، PAT
  Mean transit time (MTT)

The mean transit time (MTT) is the average time it takes for a non-diffusible tracer (representing the blood) to pass through a microvascular or capillary system from the arterial to the venous side. In normal brain tissue MTT is on the order of 4-6 seconds. The function h(t) describes the distribution of times required by the different tracer molecules when passing through the system (following an instantaneous tracer input). MTT can be calculated using the central volume theorem: For...
 
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