High Range Resolution Ultrasonographic Vascular Imaging Using Frequency Domain Interferometry With the Capon Method

摘要: For high range resolution ultrasonographic vascular imaging, we apply frequency domain interferometry with the Capon method to a single frame of in-phase and quadrature (IQ) data acquired using commercial device 7.5 MHz linear array probe. In order tailor adaptive beamforming algorithm for ultrasonography employ four techniques: averaging, whitening, radio-frequency oversampling, moving average. The proposed had 0.05 mm in an ideal condition, experimentally detected boundary couple 0.17 apart, where was indistinguishable from utilizing B-mode image. Further, this could depict swine femoral artery beam width 0.054 estimation error vessel wall thickness 0.009 mm, whereas conventional were 0.182 0.021 respectively. requires 7.7 s on mobile PC CPU 1 × 3 cm region interest. These findings indicate potential improvement without deterioration temporal resolution, resulting enhanced detection stenosis.