RT Journal Article
T1 Realistic aortic phantom to study hemodynamics using MRI and cardiac catheterization in normal and aortic coarctation conditions.
A1 Urbina, Jesús
A1 Sotelo, Julio A
A1 Springmüller, Daniel
A1 Montalba, Cristian
A1 Letelier, Karis
A1 Tejos, Cristián
A1 Irarrázaval, Pablo
A1 Andia, Marcelo E
A1 Razavi, Reza
A1 Valverde, Israel
A1 Uribe, Sergio A
K1 3D PC-MRI
K1 aortic coarctation
K1 aortic phantom
K1 catheterization
K1 hemodynamic parameters
AB To design and characterize a magnetic resonance imaging (MRI)-compatible aortic phantom simulating normal and aortic coarctation (AoCo) conditions and to compare its hemodynamics with healthy volunteers and AoCo patients. The phantom is composed of an MRI-compatible pump, control unit, aortic model, compliance chamber, nonreturn, and shutoff valves. The phantom without and with AoCo (13, 11, and 9 mm) was studied using 2D and 3D phase-contrast data and with a catheterization unit to measure pressures. The phantom data were compared with the mean values of 10 healthy volunteers and two AoCo patients. Hemodynamic parameters in the normal phantom and healthy volunteers were: heart rate: 68/61 bpm, cardiac output: 3.5/4.5 L/min, peak flow and peak velocity (Vpeak) in the ascending aorta (AAo): 270/357 mL/s (significantly, P  We propose and characterize a normal and an AoCo phantom, whose hemodynamics, including velocity, flow, and pressure data are within the range of healthy volunteers and patients with AoCo. J. Magn. Reson. Imaging 2016;44:683-697.
YR 2016
FD 2016-03-10
LK http://hdl.handle.net/10668/9912
UL http://hdl.handle.net/10668/9912
LA en
DS RISalud
RD Apr 13, 2025