High range resolution medical acoustic vascular imaging with frequency domain interferometry

作者: Hirofumi Taki , Kousuke Taki , Takuya Sakamoto , Makoto Yamakawa , Tsuyoshi Shiina

DOI: 10.1109/IEMBS.2010.5626325

关键词: InterferometryOptoacoustic imagingImage resolutionMedical imagingComputer scienceRadio waveOpticsAcousticsFrequency domainRadio frequencyUltrasonic imaging

摘要: For high range resolution acoustic vascular imaging we apply frequency domain interferometry and Capon method to a few frames of in-phase quadrature (IQ) data acquired by commercial ultrasonographic device. To suit the adaptive beamforming algorithm medical employ three techniques; averaging, whitening, pseudo-double RF conversion. The proposed detected two couples boundaries 0.26 0.19 mm apart using single frame IQ data, respectively, where each couple is indistinguishable from boundary utilizing B-mode images. Further this could depict swine femoral artery with higher than conventional imaging. These results indicate potential for improvement in ultrasonography, originating progress detection vessel stenosis.

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