Pressure fields by flow-sensitive, 4D, velocity-encoded CMR in patients with aortic coarctation

JACC Cardiovasc Imaging. 2014 Sep;7(9):920-6. doi: 10.1016/j.jcmg.2014.03.017.

Pressure fields by flow-sensitive, 4D, velocity-encoded CMR in patients with aortic coarctation.

Riesenkampff E1Fernandes JF2Meier S3Goubergrits L4Kropf S5Schubert S1Berger F1Henneumuth A3Kuehne T6.

Comment: This study compared 4 dimensional velocity-encoded cine (4D-VEC) CMR derived aortic pressures with aortic catheterization in 13 consecutive patients with coarctation of the aorta (CoA). All patients had a clinical indication for catheterization due to CoA, which was either native, balloon dilated, or surgically treated. Patients with aortic stents were excluded. During catheterization pressures were obtained at six different locations. Post-processing yielded 4D-VEC CMR derived blood pressure differences in six locations equal to those from catheterization. Aortic pressure profiles were found to be similar at all locations between both measurements methods, with only minor (non-significant) underestimation with CMR. 4D-VEC CMR provides a promising new, non-invasive and radioation-free, tool for the follow-up of patients with a borderline treatment indication for CoA.