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Table 2 Effect of magnitude and phase corrections on SLAM relaxation and PD measurements with R = 10-fold acceleration

From: High-resolution and accelerated multi-parametric mapping with automated characterization of vessel disease using intravascular MRI

 

No correction

With Correction

True valuea

W2 T1 (ms)

3700

2780

2700 ± 800

W2 T2 (ms)

−15,240

1320

1200 ± 1380

SM PD (vs. water)

0.2

0.83

0.82 ± 0.2

Fat T1 (ms)

370

373

370 ± 100

Fat T2 (ms)

104

104

112 ± 31

Fat PD (vs. water)

0.44

0.7

0.67 ± 0.11

L1 T1 (ms)

493.4

507

514 ± 98

L1 T2 (ms)

52

51.7

53.4 ± 7.5

L1 PD (vs. water)

0.89

0.89

0.84 ± 0.09

L2 T1 (ms)

509.5

490.5

475 ± 127

L2 T2 (ms)

70

69

67.2 ± 16

L2 PD (vs. water)

0.67

0.63

0.64 ± 0.12

  1. aMean ± SD for each compartment defined in Fig. 6(a) as measured from the full k-space data sets. SM = smooth vessel-wall muscle; W2 = surrounding tissue; L1 = lesion 1; L2 = lesion 2
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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