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Table 3 Quantitative In Vivo Velocities

From: A technique for intra-procedural blood velocity quantitation using time-resolved 2D digital subtraction angiography

 

MR Velocity (cm/s)

DSA Velocity (cm/s)

DSA Std. Dev.

Mag. Factor

Swine 1

 Common Hepatic

53.51

53.53

6.79

1.19

 Splenic

27.15

26.33

4.53

1.11

 Left Renal

22.57

16.65

1.98

1.28

 Right Renal

25.88

31.44

4.39

1.16

 Iliac

38.33

33.28

5.03

1.20

Swine 2

 Common Hepatic

43.01

47.78

8.78

1.28

 Splenic

29.56

34.16

2.72

1.26

 Right Renal

29.62

35.21

4.48

1.28

 Iliac

34.05

26.38

3.11

1.33

  1. Quantitative values from the in vivo study for both imaging modalities are presented in the table. The standard deviation of the DSA velocity is provided from the triplicate scans. The magnification factor was calculated for each vessel by imaging a reference wire, of 3 cm in length, in the vessel of interest prior to injection