Cardiovascular MR imaging: pressure-gating using the arterial pressure signal from a conventional ferromagnetic micromanometer-tip catheter.
We used the arterial pressure wave as a reliable trigger to synchronize MR imaging to the cardiac cycle. Pressure readings and MR images remained undistorted using a conventional ferromagnetic micromanometer-tip catheter. As a safe alternative to triggering to ventricular pressure, this approach allows varying the time relation between the trigger and the cardiac cycle while maintaining the advantages of pressure-gating.
Pattynama
P M
PM
Department of Radiology, University Hospital Leiden, The Netherlands.
van der Velde
E T
ET
Steendijk
P
P
Lamb
H J
HJ
Baan
J
J
de Roos
A
A
D000818:Animals; D001011:Aorta / Q000502:physiology; D001794:Blood Pressure; D006328:Cardiac Catheterization / Q000295:instrumentation; D005260:Female; D006321:Heart / Q000033:anatomy & histology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics; D008365:Manometry / Q000295:instrumentation; D013552:Swine; D017725:Ventricular Pressure