Quantification of flow volume with a new digital three-dimensional color Doppler flow approach

An in vitro study

J. Li, X. Li, Y. Mori, R. A. Rusk, J. S. Lee, C. H. Davies, I. Hashimoto, G. O M El-Sedfy, X. N. Li, David Sahn

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Objective. The quantification of flow stroke volume is important for evaluation of patients with cardiac dysfunction and cardiovascular disease. Three-dimensional digital color Doppler flow imaging allows the acquisition of flow data in an orientation approximately parallel to flow and analysis of the Doppler flow velocities perpendicular to flow (cross-sectional flow calculation). This in vitro study assessed the applicability of this method for quantifying cardiac output in a funnel-shaped tube model similar to mitral inflow or the left ventricular outflow tract. Methods. A new digital three-dimensional color Doppler method was used to acquire Doppler flow information. Raw scan line data with digital velocity assignments were obtained on a conventional Doppler color flow imaging system with a 180° rotating multiplanar transesophageal probe connected to a computer workstation. Nine stroke volumes (20-60 mL) with flow rates ranging from 1.5 to 5.28 L/min in a funnel-shaped pulsatile laminar flow model were studied. Three-dimensional flow rates were compared with standard-of-reference measurements of flow obtained from timed collection in a graduated cylinder and with an ultrasonic flow meter. Results. Within the funnel tube, the flow volumes that were calculated from the first, second, and third depths and the average of all 3 depths correlated well with the actual flow rate (r = 0.97-0.99). Results from the middle and second levels and from the average of all 3 depths provided the closest fit to the actual flow rates (r = 0.99; y = 0.96x + 0.14; and r = 0.98; y = 1.14x - 0.43, respectively). Conclusions. Although a work in progress, this digital three-dimensional color Doppler flow measurement method is feasible, accurate, and simple, and it may offer in vivo evaluation of blood volume flow given a favorable orientation between the valve orifice and the scanning device.

Original languageEnglish (US)
Pages (from-to)1303-1311
Number of pages9
JournalJournal of Ultrasound in Medicine
Volume20
Issue number12
StatePublished - 2001

Fingerprint

Color
color
Stroke Volume
flow velocity
funnels
Pulsatile Flow
stroke volume
Blood Volume
Ultrasonics
Cardiac Output
Heart Diseases
Cardiovascular Diseases
Equipment and Supplies
cardiac output
In Vitro Techniques
tubes
blood volume
information flow
three dimensional flow
cross flow

Keywords

  • Angle independence
  • Digital color Doppler imaging
  • Flow
  • Three-dimensional echocardiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Acoustics and Ultrasonics

Cite this

Li, J., Li, X., Mori, Y., Rusk, R. A., Lee, J. S., Davies, C. H., ... Sahn, D. (2001). Quantification of flow volume with a new digital three-dimensional color Doppler flow approach: An in vitro study. Journal of Ultrasound in Medicine, 20(12), 1303-1311.

Quantification of flow volume with a new digital three-dimensional color Doppler flow approach : An in vitro study. / Li, J.; Li, X.; Mori, Y.; Rusk, R. A.; Lee, J. S.; Davies, C. H.; Hashimoto, I.; El-Sedfy, G. O M; Li, X. N.; Sahn, David.

In: Journal of Ultrasound in Medicine, Vol. 20, No. 12, 2001, p. 1303-1311.

Research output: Contribution to journalArticle

Li, J, Li, X, Mori, Y, Rusk, RA, Lee, JS, Davies, CH, Hashimoto, I, El-Sedfy, GOM, Li, XN & Sahn, D 2001, 'Quantification of flow volume with a new digital three-dimensional color Doppler flow approach: An in vitro study', Journal of Ultrasound in Medicine, vol. 20, no. 12, pp. 1303-1311.
Li, J. ; Li, X. ; Mori, Y. ; Rusk, R. A. ; Lee, J. S. ; Davies, C. H. ; Hashimoto, I. ; El-Sedfy, G. O M ; Li, X. N. ; Sahn, David. / Quantification of flow volume with a new digital three-dimensional color Doppler flow approach : An in vitro study. In: Journal of Ultrasound in Medicine. 2001 ; Vol. 20, No. 12. pp. 1303-1311.
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abstract = "Objective. The quantification of flow stroke volume is important for evaluation of patients with cardiac dysfunction and cardiovascular disease. Three-dimensional digital color Doppler flow imaging allows the acquisition of flow data in an orientation approximately parallel to flow and analysis of the Doppler flow velocities perpendicular to flow (cross-sectional flow calculation). This in vitro study assessed the applicability of this method for quantifying cardiac output in a funnel-shaped tube model similar to mitral inflow or the left ventricular outflow tract. Methods. A new digital three-dimensional color Doppler method was used to acquire Doppler flow information. Raw scan line data with digital velocity assignments were obtained on a conventional Doppler color flow imaging system with a 180° rotating multiplanar transesophageal probe connected to a computer workstation. Nine stroke volumes (20-60 mL) with flow rates ranging from 1.5 to 5.28 L/min in a funnel-shaped pulsatile laminar flow model were studied. Three-dimensional flow rates were compared with standard-of-reference measurements of flow obtained from timed collection in a graduated cylinder and with an ultrasonic flow meter. Results. Within the funnel tube, the flow volumes that were calculated from the first, second, and third depths and the average of all 3 depths correlated well with the actual flow rate (r = 0.97-0.99). Results from the middle and second levels and from the average of all 3 depths provided the closest fit to the actual flow rates (r = 0.99; y = 0.96x + 0.14; and r = 0.98; y = 1.14x - 0.43, respectively). Conclusions. Although a work in progress, this digital three-dimensional color Doppler flow measurement method is feasible, accurate, and simple, and it may offer in vivo evaluation of blood volume flow given a favorable orientation between the valve orifice and the scanning device.",
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T2 - An in vitro study

AU - Li, J.

AU - Li, X.

AU - Mori, Y.

AU - Rusk, R. A.

AU - Lee, J. S.

AU - Davies, C. H.

AU - Hashimoto, I.

AU - El-Sedfy, G. O M

AU - Li, X. N.

AU - Sahn, David

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N2 - Objective. The quantification of flow stroke volume is important for evaluation of patients with cardiac dysfunction and cardiovascular disease. Three-dimensional digital color Doppler flow imaging allows the acquisition of flow data in an orientation approximately parallel to flow and analysis of the Doppler flow velocities perpendicular to flow (cross-sectional flow calculation). This in vitro study assessed the applicability of this method for quantifying cardiac output in a funnel-shaped tube model similar to mitral inflow or the left ventricular outflow tract. Methods. A new digital three-dimensional color Doppler method was used to acquire Doppler flow information. Raw scan line data with digital velocity assignments were obtained on a conventional Doppler color flow imaging system with a 180° rotating multiplanar transesophageal probe connected to a computer workstation. Nine stroke volumes (20-60 mL) with flow rates ranging from 1.5 to 5.28 L/min in a funnel-shaped pulsatile laminar flow model were studied. Three-dimensional flow rates were compared with standard-of-reference measurements of flow obtained from timed collection in a graduated cylinder and with an ultrasonic flow meter. Results. Within the funnel tube, the flow volumes that were calculated from the first, second, and third depths and the average of all 3 depths correlated well with the actual flow rate (r = 0.97-0.99). Results from the middle and second levels and from the average of all 3 depths provided the closest fit to the actual flow rates (r = 0.99; y = 0.96x + 0.14; and r = 0.98; y = 1.14x - 0.43, respectively). Conclusions. Although a work in progress, this digital three-dimensional color Doppler flow measurement method is feasible, accurate, and simple, and it may offer in vivo evaluation of blood volume flow given a favorable orientation between the valve orifice and the scanning device.

AB - Objective. The quantification of flow stroke volume is important for evaluation of patients with cardiac dysfunction and cardiovascular disease. Three-dimensional digital color Doppler flow imaging allows the acquisition of flow data in an orientation approximately parallel to flow and analysis of the Doppler flow velocities perpendicular to flow (cross-sectional flow calculation). This in vitro study assessed the applicability of this method for quantifying cardiac output in a funnel-shaped tube model similar to mitral inflow or the left ventricular outflow tract. Methods. A new digital three-dimensional color Doppler method was used to acquire Doppler flow information. Raw scan line data with digital velocity assignments were obtained on a conventional Doppler color flow imaging system with a 180° rotating multiplanar transesophageal probe connected to a computer workstation. Nine stroke volumes (20-60 mL) with flow rates ranging from 1.5 to 5.28 L/min in a funnel-shaped pulsatile laminar flow model were studied. Three-dimensional flow rates were compared with standard-of-reference measurements of flow obtained from timed collection in a graduated cylinder and with an ultrasonic flow meter. Results. Within the funnel tube, the flow volumes that were calculated from the first, second, and third depths and the average of all 3 depths correlated well with the actual flow rate (r = 0.97-0.99). Results from the middle and second levels and from the average of all 3 depths provided the closest fit to the actual flow rates (r = 0.99; y = 0.96x + 0.14; and r = 0.98; y = 1.14x - 0.43, respectively). Conclusions. Although a work in progress, this digital three-dimensional color Doppler flow measurement method is feasible, accurate, and simple, and it may offer in vivo evaluation of blood volume flow given a favorable orientation between the valve orifice and the scanning device.

KW - Angle independence

KW - Digital color Doppler imaging

KW - Flow

KW - Three-dimensional echocardiography

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