Title :
New TDI developments for vascular and cardiac applications
Author :
Bonnefous, O. ; Criton, A. ; Germond, L. ; Denis, E.
Author_Institution :
Lab. d´´Electronique Philips, Limeil-Brevannes, France
Abstract :
Tissue Doppler imaging can show the biomechanical properties of living tissues in both vascular and cardiac applications. Technical validation of new quantitative methods implemented into a commercial ultrasound system is described. This includes simulations taking into account physiologic mechanical events, and data generation using motion phantoms. The results are promising since the measurement accuracy of parameters such as arterial dilation, cardiac wall thickening, myocardium strain rates is on the order 5-10%. It is also shown that strain sequences can correctly represent physical phenomena
Keywords :
biomechanics; biomedical ultrasonics; blood vessels; cardiovascular system; medical image processing; motion estimation; muscle; Gaussian shaped beams; arterial dilation; biomechanical properties; cardiac applications; cardiac wall thickening; colour coded velocity values; data generation; dilation curves; living tissues; measurement accuracy; motion estimation; motion phantoms; myocardium strain rates; quantitative methods; stenosis; strain sequences; tissue Doppler imaging; ultrasound system; vascular applications; Acoustic beams; Arteries; Blood; Frequency; Image edge detection; Imaging phantoms; Myocardium; Strain measurement; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921558
