A novel method to estimate the aortic pressure waveform using B-mode ultrasound images acquired from a suprasternal view.
A novel method to obtain the aortic pressure waveform using a sequence of B-mode images is developed in this project. An automatic edge detection algorithm is applied to a sequence of longitudinal images of the aortic arch acquired from a suprasternal view. The aortic distension waveform is obtained by measuring the distance between the two edges throughout the cardiac cycle. It is then calibrated using the systolic and diastolic pressures from the brachial artery to obtain an estimated pressure waveform. This method was applied to 5 healthy children, pulse pressure amplification and total arterial compliance were calculated from the estimated waveforms.
Leung
Mande T
MT
Department of Electrical and Computer Engineering, the University of British Columbia, Vancouver, Canada.
Dumont
Guy A
GA
Sandor
George G S
GG
Potts
M
M
Potts
James E
JE
D000293:Adolescent; D000465:Algorithms; D001011:Aorta / Q000502:physiology*; D001795:Blood Pressure Determination / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013249:Sternum / Q000000981:diagnostic imaging; D014463:Ultrasonography / Q000379:methods*