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Table 1 Bias and r2 for stroke volume (SV) and peak flows obtained with 4D flow sequences compared with 2D-flow.

From: Quantification and visualization of cardiovascular 4D velocity mapping accelerated with parallel imaging or k-t BLAST: head to head comparison and validation at 1.5 T and 3 T

Sequence r2 SV, bias ± SD Peak flow ml/s (mean ± SD)
1.5 T SENSE = 2 0.71 -3.6 ± 14.8% 402 ± 86**
3 T SENSE = 2 0.86 -0.7 ± 7.6% 421 ± 75**
1.5 T k-t BLAST = 5 0.65 -15.6 ± 13.7% 353 ± 77***
3 T k-t BLAST = 5 0.64 -4.6 ± 10.0% 389 ± 68***
  1. Peak flow with 2D-flow at 1.5 T: 439 ± 86 ml/s and 3 T: 448 ± 83 ml/s. ** p < 0.01 and *** p < 0.001 compared to peak flow on 2D-flow.