Conference proceeding
Determination of the envelope function (maximum velocity curve) in Doppler ultrasound flow velocity diagrams
Proceedings of SPIE, Medical Imaging 2000: Image Processing, Vol.3979(1), pp.1516-1527
Medical Imaging 2000: Image Processing, 2000 (San Diego, California)
06/06/2000
DOI: 10.1117/12.387664
Abstract
This paper presents a new approach for the evaluation of Doppler flow velocity diagrams, obtained during brachial artery flow mediated dilatation (FMD) studies. The velocity diagrams are stored as image sequences on VCR tape. For this reason standard signal processing methods can not be used. A method for determination of blood velocity envelopes from image data is reported that uses Doppler-data specific heuristic to achieve high accuracy and robustness. The approach was tested in 40 Doppler blood flow images. Comparisons with manually defined independent standards demonstrated a very good correlation in determined peak velocity values (r equals 0.993) and flow envelope areas (r equals 0.996). The method is currently tested in a large volume clinical study.
Details
- Title: Subtitle
- Determination of the envelope function (maximum velocity curve) in Doppler ultrasound flow velocity diagrams
- Creators
- Juerg Tschirren - University of IowaRonald M Lauer - University of IowaMilan Sonka - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Medical Imaging 2000: Image Processing, Vol.3979(1), pp.1516-1527
- Conference
- Medical Imaging 2000: Image Processing, 2000 (San Diego, California)
- DOI
- 10.1117/12.387664
- ISSN
- 0277-786X
- Language
- English
- Date published
- 06/06/2000
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Electrical and Computer Engineering; Radiation Oncology; Fraternal Order of Eagles Diabetes Research Center; Injury Prevention Research Center; Ophthalmology and Visual Sciences
- Record Identifier
- 9984187152502771
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