Title :
A new transducer for 3D harmonic imaging
Author :
Voormolen, M.M. ; Bouakaz, A. ; Krenning, B.J. ; Lancée, C.T. ; ten Cate, F.J. ; Roelandt, J.R.T.C. ; van der Steen, A.F.W. ; de Jong, N.
Author_Institution :
ICIN, Interuniv. Cardiology Inst. of the Netherlands, Utrecht, Netherlands
Abstract :
We developed a fast rotating ultrasound transducer for 3D-echocardiography containing a broadband linear array. In the harmonic mode the tissue to clutter ratio was measured as function of frequency. This resulted in an optimal harmonic transmit frequency of 2.0 MHz. In-vitro evaluation, using the optimal frequency, showed an average volume error, for 5 reconstructed agar phantoms, of approximately 1%. Further, a clinical case study proved the feasibility of dynamic left ventricular volume measurements for the transducer.
Keywords :
biomedical transducers; echocardiography; ultrasonic transducer arrays; 2.0 MHz; 3D harmonic imaging; 3D-echocardiography; average volume error; broadband linear array; dynamic left ventricular volume measurements; fast rotating ultrasound transducer; harmonic mode; optimal harmonic transmit frequency; reconstructed agar phantoms; tissue to clutter ratio; transducer; Acoustic transducers; Bandwidth; DC motors; Frequency measurement; Image reconstruction; Phased arrays; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
Print_ISBN :
0-7803-7582-3
DOI :
10.1109/ULTSYM.2002.1192523
