Clinical evaluation of synthetic aperture sequential beamforming

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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In this study clinically relevant ultrasound images generated with synthetic aperture sequential beamforming (SASB) is compared to images generated with a conventional technique. The advantage of SASB is the ability to produce high resolution ultrasound images with a high frame rate and at the same time massively reduce the amount of generated data. SASB was implemented in a system consisting of a conventional ultrasound scanner connected to a PC via a research interface. This setup enables simultaneous recording with both SASB and conventional technique. Eighteen volunteers were ultrasound scanned abdominally, and 84 sequence pairs were recorded. Each sequence pair consists of two simultaneous recordings of the same anatomical location with SASB and conventional B-mode imaging. The images were evaluated in terms of spatial resolution, contrast, unwanted artifacts, and penetration depth of the ultrasound beam. Five ultrasound experts (radiologists) evaluated the sequence pairs in a side-by-side comparison, and the results show that image quality using SASB was better than conventional B-mode imaging. 73 % of the evaluations favored SASB, and a probability of 70 % was calculated for a new radiologist to prefer SASB over conventional imaging, if a new sequence was recorded. There was no significant difference in penetration depth.
Original languageEnglish
Title of host publicationProceedings of SPIE
Volume8320
PublisherSPIE - International Society for Optical Engineering
Publication date2012
StatePublished

Conference

ConferenceSPIE Medical Imaging : Ultrasonic Imaging, Tomography, and Therapy
CitySan Diego, California United States
Period01/01/12 → …

Keywords

  • Clinical evaluation, Clinical demonstration, Ultrasound imaging, Synthetic aperture sequential beamforming
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