Skip to main content

Table 2 Mean sideband ratio (SBR) value and standard deviation (SD) for different parameters that were investigated

From: Optimization of quantitative time-resolved 3D (4D) digital subtraction angiography in a porcine liver model

Parameter

Mean SBR

SD

p value

Scan time (s)

  

< 0.001

 12

10.690

13.148

 

 6

4.353

4.927

 

Injection rate (mL/s)

  

0.007

 1.0

9.107

9.677

 

 1.5

10.945

13.527

 

 2.0

8.816

13.656

 

 2.5

7.963

10.604

 

Contrast concentration

  

0.907

 50%

9.032

10.602

 

 100%

9.195

12.799

 

Catheter size (Fr)

  

0.063

 4

10.139

13.381

 

 5

7.445

8.987

 

Branch order

  

< 0.001

 1st

21.590

17.859

 

 2nd

7.090

6.722

 

 3rd

4.913

7.881

 
  1. The p values were obtained from the linear mixed model for SBR (see Table 3) and reflect the significance of effect for that parameter on SBR