Table 12.
Sequence | Imaging plane | Indication |
---|---|---|
Standard imaging | ||
Cine bSSFP | Parallel to the LVOT in orthogonal planes, short axis of the aortic root, Short-axis of the largest diameter of the ascending aorta, sagittal oblique in long axis of the aortic arch (“candy cane”) | Aortic valve morphology, measurement of aortic root and ascending aorta, and assessment of aortic arch anatomy |
Contrast-enhanced magnetic resonance angiography | 3D volume, extend field of view superiorly to angle of the jaw | Extracardiac vascular anatomy for aneurysm formation and vertebral tortuosity |
3D bSSFP, GRE or mDIXON FSE respiratory navigator-gated and ECG-triggered whole heart sequencea | 3D volume | Extracardiac vascular assessment for aneurysm formation, measurement of aortic root |
Phase contrast flow |
Ascending aorta Descending aorta |
Flow velocity and pattern |
Additional case-specific or comprehensive imaging | ||
Cine bSSFP | Ventricular short-axis or axial (transverse) stack |
LV volumes, mass, and EF RV volumes, mass, and EF |
Cine bSSFP | Extend field of view to include head, neck, abdomen, and pelvis | Loeys-Dietz syndrome |
Proton-density-weighted FSE black blood imaging | Sagittal oblique in long axis of the aortic arch (“candy cane”) | Vascular anatomy |
Cine bSSFP | Short and long axis of the region of interest | Concern for dissection or interarterial thrombus |
3D 3-dimensional, ECG electrocardiogram, EF ejection fraction, GRE gradient echo, LV left ventricular, RV right ventricular, LVOT left ventricular outflow tract, bSSFP balanced steady state free precession, FSE fast spin echo
aImaging can be performed during systole or diastole; newer sequences may provide both