Table 1.

Image Quality Scores by Scan Duration and K-Space Trajectory

	Radial	Cartesian
1-shot (2 min 21 s)	2.9±0.4a	2.7±0.3
2-shot (4 min 42 s)	2.9±0.4	2.8±0.3
3-shot (7 min 3 s)	3.1±0.4	2.9±0.5
All Scan Durations	3.0±0.4	2.8±0.4

Data are from the imaging volunteer group, are composite/mean image quality scores obtained from two scorers, and are presented as mean ± standard deviation. Scoring scale: 1, non-diagnostic image quality; 2, fair image quality with moderate artifacts; 3, good image quality with mild artifacts; 4, excellent image quality with minimal to no artifacts.

^aP<0.05, matched pairs t-test, versus 1-shot Cartesian sampling.