Skip to main content

Table 1 SNR and CNR of coronary artery in target-volume coronary MRA.

From: Target volume coronary MRA revisited: usefulness of non-rigid reregistration of multi-frame 3D MRA acquisitions at 3T

 

1st frame

2nd frame

3rd frame

Merged image (frame 1+2)

Merged image (frame 1+2+3)

p

SNR rca

13.2±4.4

9.8±3.7*

7.9±2.8*

16.7±6.7*

17.3±5.4*

* p<0.05

SNR lmt

14.5±3.5

13.4±3.6

10.8±2.9*

17.4±6.0*

19.2±4.1*

* p<0.05

SNR lad

13.7±2.3

13.7±1.9

11.5±3.2

17.2±3.7*

19.5±3.7*

* p<0.05

SNR lcx

13.1±3.5

11.5±3.8

10.0±3.8*

16.1±4.6*

17.1±5.2*

* p<0.05

CNR rca

6.8±3.0

3.2±2.3*

1.7±1.6*

7.9±5.0

7.6±4.5

* p<0.05

CNR lmt

8.1±2.0

6.8±2.2*

4.5±1.9**

8.6±4.0*

9.4±2.7*

* p<0.05, ** p<0.001

CNR lad

6.3±1.7

5.1±1.2

2.6±0.5*

7.1±2.5

7.1±2.3

* p<0.05

CNR lcx

6.8±2.5

4.9±2.8

3.8±2.5

7.4±3.1

7.4±3.8

* p<0.05

  1. *, **: p value against 1st frame