Adaptive-beamformer with accurate intensity-estimation technique for high-range-resolution vascular ultrasound imaging
作者： Hirofumi Taki , Takuya Sakamoto , Makoto Yamakawa , Tsuyoshi Shiina , Toru Sato
关键词: Ultrasound pulse 、 Frequency domain 、 Interferometry 、 Image resolution 、 Center frequency 、 Sound intensity 、 Adaptive beamformer 、 Intensity (physics) 、 Ultrasound imaging 、 Carotid arteries 、 Acoustics 、 Computer science 、 Femoral artery
摘要: For the early detection and for treatment assessment of cardiovascular disease, improvement in range resolution vascular ultrasound imaging is highly desirable. The employment frequency domain interferometry with Capon method largely improves imaging; however, this methodology often underestimates echo intensity. In paper, we propose a compensation to improve estimation accuracy intensity acquired by high-range-resolution based on interferometry. requires 0.18 s/frame using single CPU PC. proposed has spatial 0.05 mm average error 0.15 dB log scale, where employ an pulse 7.5 MHz center frequency. We have applied swine femoral artery vitro human carotid vivo, verified its efficiency estimation.
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