Automated volumetric flow quantification using angle-corrected color Doppler image.
We have developed a fully automated method for measuring volumetric blood flow with angle-corrected blood velocity from a color Doppler image. By computing the blood flow vector through a conduit, the angle of incidence between the direction of ultrasound beam and the direction of blood flow can be...
| Publicado en: | Echocardiography Vol. 21; no. 5; pp. 399 - 409 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
Jul2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106082101&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106082101 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Jul2004 vid: 21 iid: 5 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106082101 2009396598 10.1111/j.0742-2822.2004.03066.x NLM15209718 106082101 ppf: 399 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Automated volumetric flow quantification using angle-corrected color Doppler image. aug: au: Kim B Soble JS Stamos TD Neumann A Robergé J sug: subj: Bar Coding Blood Flow Velocity Physiology Echocardiography, Doppler, Color Stroke Volume Physiology Coronary Circulation Physiology Heart Ventricle Physiopathology Heart Ventricle Ultrasonography Image Processing, Computer Assisted Observer Bias Reproducibility of Results Statistics Human ab: We have developed a fully automated method for measuring volumetric blood flow with angle-corrected blood velocity from a color Doppler image. By computing the blood flow vector through a conduit, the angle of incidence between the direction of ultrasound beam and the direction of blood flow can be measured to correct the underestimated blood velocity. This correction immediately contributes to the improvement of measurement accuracy. The developed method also enhances the conduit identification procedure that is one of the most important factors affecting the accuracy of volumetric measurement. To evaluate the validity of the developed algorithm, experimental studies had been applied to 21 healthy subjects and 10 patients. Volumetric flows were measured from a color Doppler image of the left ventricular outflow track, which were compared with blood volumes that were measured by traditional pulsed-wave (PW)-Doppler technique. The mean stroke volume difference between two methods was -0.45 ± 11.7 (mean ± SD). The proposed algorithm is a viable method for determining blood flow volume in an automated fashion. (ECHOCARDIOGRAPHY, Volume 21, July 2004) pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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