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Assessing changes in aortic motion and hemodynamics after valve-sparing aortic root surgery in Marfan syndrome using 4D bSSFP and 4D flow CMR
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DOI：10.1016/j.jocmr.2026.102728.png)
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Abstract
En 中文
Aortic root surgery in patients with Marfan syndrome (MFS) has significantly improved survival, allowing time for distal aortic complications such as type B aortic dissection (TBAD) to emerge. The implantation of a non-compliant synthetic graft may alter aortic biomechanics and hemodynamics, potentially contributing to these late complications. This proof-of-concept study aimed to assess changes in aortic motion and flow characteristics following aortic root surgery using advanced cardiovascular magnetic resonance (CMR) techniques.
Keywords:
3D
Three-dimensional
4D
Four-dimensional
AAo
Ascending aorta
BSA
Body surface area
bSSFP
balanced steady state free precession
CMR
Cardiovascular magnetic resonance imaging
DAo
Descending aorta
FA
Flip angle
FOV
Field-of-view
MAP
Mean arterial pressure
MFS
Marfan syndrome
TBAD
Type B aortic dissection
PWV
Pulse wave velocity
STJ
Sinotubular junction
TE
Echo time
TR
Repetition time
WSS
Wall Shear Stress
Marfan syndrome
aortic surgery
4D CMR
hemodynamics
biomechanics
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