Ann Cardiol Cardiovasc Med | Volume 5, Issue 1 | Research Article | Open Access
Bhat Musaddiq1*, Robbani Irfan1, Shaheen Feroze1, Choh Naseer1, Lone Ajaz2, Shah Omair1 and Iqbal Javaid1
1Department of Radiology, Sher-i-Kashmir Institute of Medical Sciences, India
2Department of Cardiology, Sher-i-Kashmir Institute of Medical Sciences, India
*Correspondance to: Musaddiq Rafiq BhatFulltext PDF
Purpose: Measurement of the pressure gradients, using Phase-Contrast MRI and assessment of associated cardiac lesions/valvular affections in patients with coarctation of aorta and mapping of collaterals, with subsequent comparison of MRI findings with echocardiographic findings.
Methods: The study cohort comprised of 20 successive patients with coarctation of aorta who experienced echocardiography and cardiac-MRI between July 2018 to July 2020. Cardiac-MRI and echocardiography findings were compared with the criterion standardized by multi-team discussion, CCA, and operative findings (where ever available).
Results: Twenty patients twelve were males (60 percent) and eight were females (40 percent) with a mean age of 17 years (range from 0.019 to 60 years). The site of coarctation of aorta was accurately delineated in 85% of cases by Echo and in 100% of cases by MRI. Mild, moderate, and severe coarctation of aorta was detected in 10%, 25%, and 55% of patients respectively. Significant
collateralization was detected in 55% of severe and 60% of moderate cases of coarctation of aorta with a moderate level of agreement between echocardiography and cardiac-MRI findings (kappa value of 0.459) and Pearson's correlation coefficient of 0.823. ASD, VSD, PDA, BAV, LVH, and PAH was detected in 9%, 16%, 10%, 10%, 29%, and 26% of cases.
Conclusion: MRI has been a regular exam for assessment of aortic coarctation complementing and extending the findings of echocardiography. Furthermore, MRI aortic arch measurements are comparable with the anatomic measurements, especially to show related tubular hypoplasia. Besides the severity of coarctation of aorta, MRI can aid in the evaluation of collateral circulation and better delineation of associated anomalies which constitutes a corner-stone in pre-operative evaluation algorithm in cases of COA: “coarctation of aorta”.
PWV: Pulse wave velocity; VENC: Encoding Velocity; TTE: Trans-Thoracic Echocardiography; COA: Coarctation of Aorta; MTD: Multi-Team Discussion; TRUFI: True Fast Imaging with steady-state free precession
Musaddiq B, Irfan R, Feroze S, Naseer C, Ajaz L, Omair S, et al. Novel Cardiac MRI Techniques in Coarctation of Aorta-
Is Echo Friend or Foe?. Ann Cardiol Cardiovasc Med. 2021;5(1):1042..