Table 2: Parameters of the theoretical time-enhancement curves (TECs) for capillaries.
Parameters of the theoretical TECs for highly perfuse areas. If the TEC of a region matched this, the region was considered a vessel, and the estimates of each perfusion parameter were set to 0 during the vessel elimination process. A hematocrit correction factor of 1 was used.

Parameter

Unit

Min

Max

Step

Number of items

MTT

s

0.5

4.5

1

5

CBV

ml/100 g

20

100

20

5

Tracer delay

s

0

5

0.5

11

Base line

HU

-10

50

1

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