Intracardiac Doppler hemodynamics and flow: new vector, phased-array ultrasound-tipped catheter.
Comprehensive intracardiac Doppler examination under simultaneous direct ultrasound visualization has not been previously possible. This human feasibility study demonstrates that a new 10Fr, 3.2-mm diameter, 5.5- to 10-MHz frequency agile, phased, vector array, ultrasound-tipped catheter with 4-way tip articulation provides diagnostic, high-quality, intracardiac Doppler signals using pulsed and continuous-wave, color flow, and tissue Doppler.
Bruce
C J
CJ
Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.
Packer
D L
DL
Seward
J B
JB
D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization / Q000295:instrumentation*; D015150:Echocardiography, Doppler / Q000295:instrumentation*; D004867:Equipment Design; D005240:Feasibility Studies; D006801:Humans; D008875:Middle Aged