Skip to main content
. Author manuscript; available in PMC: 2010 Apr 1.
Published in final edited form as: Concepts Magn Reson Part B Magn Reson Eng. 2009 Apr 1;35(2):89–97. doi: 10.1002/cmr.b.20134

Figure 1.

Figure 1

Figure 1

a) Optimal gradient strength as a function of resolution as defined by the slew rates for the body, insert and composite gradients. The horizontal lines represent the limiting gradient amplitude for each gradient system. b) The ratio of the optimal gradient to the maximum gradient for each system. c) Ttotal (echotrain readout time) for an EPI sequence using the body, insert, and composite gradients. d) Ttotal is reduced by 30% and 44% (for voxels > 1mm) using the insert and composite gradients respectively. Reduction is greater for smaller voxels. The thin line is the fraction of total time reduction (Ttotal(body)- T total(composite)) that comes from adding the body gradients to the insert gradients: (Ttotal(insert)- Ttotal(composite))/ (Ttotal(body)- Ttotal(composite)).