Table E1. Measurements of Signal-to-Noise and Contrast-to-Noise Ratios for the Aortoiliac and Renal Arteries on Conventional and Fast MR Angiography Images in 40 Patients

	Signal-to-Noise Ratio			Contrast-to-Noise Ratio
	Conventional MRA	Fast MRA	P Value	Conventional MRA	Fast MRA	P Value
Suprarenal aorta	66.2 � 13.2	29.1 � 5.8	.001	51.6 � 11.3	24.1 � 4.8	.001
Infrarenal aorta	64.5 � 13.7	40.5 � 9.3	.001	49.6 � 13.6	34.2 � 8.9	.001
Left renal artery, proximal segment	64.4 � 16.0	33.2 � 6.8	.001	47.8 � 13.7	27.2 � 5.5	.001
Left renal artery, middle segment	62.3 � 15.8	34.0 � 7.5	.001	48.0 � 12.5	27.9 � 4.8	.001
Left renal artery, distal segment	61.1 � 13.5	32.0 � 7.3	.001	46.3 � 13.2	30.4 � 5.4	.001
Right renal artery, proximal segment	65.1 � 13.2	33.3 � 5.3	.001	48.8 � 11.1	27 � 4.4	.001
Right renal artery, middle segment	63.7 � 15.1	32.3 � 6.9	.001	46.4 � 12.6	27.9 � 5.3	.001
Right renal artery, distal segment	62.9 � 14.3	35.2 � 7.2	.001	45.8 � 12.3	27.5 � 4.6	.001
Accessory renal artery, proximal segment	59.1 � 18.8	29.4 � 5.6	.001	43.4 � 15.0	23.6 � 4.5	.001
Accessory renal artery, middle segment	62.8 � 19.1	27.2 � 5.5	.001	47.7 � 14.0	21.5 � 4.9	.001
Accessory renal artery, distal segment	63.5 � 13.7	30.3 � 5.9	.001	48.8 � 14.3	25.3 � 5.5	.001
Left common iliac artery	65.1 � 15.3	42.8 � 8.6	.001	49.4 � 15.2	35.9 � 7.9	.001
Left external iliac artery, proximal	60.1 � 13.0	43.5 � 13.0	.001	43.8 � 10.2	36.6 � 12.3	.007
Left external iliac artery, distal	61.3 � 15.4	44.2 � 11.4	.001	43.3 � 13.4	35.2 � 10.5	.005
Left internal iliac artery	51.5 � 11.1	35.9 � 6.1	.001	35.4 � 9.5	29.1 � 4.7	.001
Right common iliac artery	64.2 � 14.5	42.2 � 7.5	.001	49.4 � 13.7	35.5 � 6.4	.001
Right external iliac artery, proximal	61.0 � 12.5	38.1 � 6.5	.001	44.7 � 9.2	31.2 � 5.5	.001
Right external iliac artery, distal	60.8 � 12.1	42.2 � 7.6	.001	44.9 � 9.0	32.1 � 6.7	.001
Right internal iliac artery	55.9 � 10.1	38.4 � 7.0	.001	40.3 � 6.9	30.4 � 4.9	.001
Left common femoral artery	62.3 � 18.8	44.9 � 10.2	.001	45.7 � 15.7	37.1 � 8.6	.002
Right common femoral artery	60.3 � 12.4	47.4 � 12.4	.001	42.7 � 9.3	35.1 � 10.2	.001

Note.�Numbers are mean � standard deviation. P values < .0028 are considered statistically significant. MRA = MR angiography.

Table E2. Image Quality of the Aortoiliac and Renal Arteries as Assessed by Two Independent Readers on Conventional and Fast MR Angiographic Images in 40 Patients

Table E2

Note.�Grade 1, not visible (no diagnostic information can be obtained from the images); 2, poor visibility (image quality of vessel is degraded by low signal intensity and motion-induced blurring artifacts); 3, moderate visibility (image quality of vessel is degraded by low signal intensity or motion-induced blurring artifacts); 4, good visibility (high signal intensity and slight motion-induced blurring artifacts); 5, excellent visibility (high signal intensity, no motion-induced blurring artifacts). P values < .0028 are considered statistically significant after Bonferroni correction. MRA = MR angiography.

Table E3. Performance of Conventional and Fast MR Angiography Compared with Digital Subtraction Angiography as Assessed by Two Independent Readers in the Detection of Hemodynamically Significant Stenoses in 40 Patients

Table E3

Note.�Numbers in parentheses are 95% confidence intervals. FN = false negative, FP = false positive, MRA = MR angiography, NPV = negative predictive value, PPV = positive predictive value, R1 = Reader 1, R2 = Reader 2, TN = true negative, TP = true positive.

Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography