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Table 1 Comparison of subjective image quality between nine groups

From: Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus)

  

LBCT

RBCT

Ascending A

Left PA

Right PA

Abdominal A

Total [n (%)]

Mean score

 

Score

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

 

740 mg of iodine/bird

0.3 mL/s

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0 (0%)

60 (100%)

0 (0%)

0 (0%)

2.00 ± 0.00

0.4 mL/s

0

10

0

0

0

10

0

0

0

10

0

0

1

9

0

0

0

10

0

0

0

10

0

0

1 (1.7%)

59 (98.3%)

0 (0%)

0 (0%)

1.98 ± 0.13

0.5 mL/s

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0

10

0

0

0 (0%)

60 (100%)

0 (0%)

0 (0%)

2.00 ± 0.00

370 mg of iodine/bird

0.3 mL/s

7

3

0

0

9

1

0

0

9

1

0

0

9

1

0

0

8

1

1

0

9

1

0

0

51 (85%)

8 (13.3%)

1 (1.7%)

0 (0%)

1.17 ± 0.42

0.4 mL/s

10

0

0

0

9

1

0

0

8

2

0

0

6

2

2

0

5

2

3

0

8

2

0

0

46 (76.7%)

9 (15%)

5 (8.3%)

0 (0%)

1.32 ± 0.62

0.5 mL/s

6

3

1

0

7

3

0

0

5

4

1

0

8

1

1

0

8

1

1

0

8

2

0

0

42 (70%)

14 (23.3%)

4 (6.7%)

0 (0%)

1.37 ± 0.60

222 mg of iodine/bird

0.3 mL/s

3

2

3

2

4

1

4

1

4

1

4

1

3

0

5

2

2

0

7

1

8

1

0

1

24 (40%)

5 (8.3%)

23 (38.3%)

8 (13.3%)

2.25 ± 1.12

0.4 mL/s

2

1

2

5

4

1

0

5

2

0

2

6

3

1

2

4

2

0

5

3

7

0

1

2

20 (33.3%)

3 (5%)

12 (20%)

25 (41.7%)

2.70 ± 1.31

0.5 mL/s

2

1

3

4

3

1

3

3

2

1

2

5

4

1

1

4

3

2

1

4

7

1

0

2

21 (35%)

7 (11.7%)

10 (16.7%)

22 (36.7%)

2.55 ± 1.30

  1. Score classification of image quality: 1 = excellent; 2 = good; 3 = poor; 4 = non-diagnostic
  2. LBCT Left brachiocephalic trunk, RBCT Right brachiocephalic trunk, A Aorta, PA Pulmonary aorta