Quantitative IVUS blood flow using an array catheter

F. A. Lupotti; F. Mastik; S. G. Carlier; E. I. Céspedes; A. F.W. Van Der Steen

Quantitative IVUS blood flow using an array catheter

F. A. Lupotti^*, F. Mastik, S. G. Carlier, E. I. Céspedes, A. F.W. Van Der Steen

^*Corresponding author for this work

Cardiology

Research output: Contribution to journal › Conference article › Popular

4 Citations (Scopus)

Abstract

In recent years, a new method to measure transverse blood flow, based on the decorrelation of the Radio Frequency (RF) signals has been introduced. In this paper, we studied the decorrelation characteristics of transverse blood flow using an intravascular ultrasound (IVUS) array catheter by means of computer modeling. Blood was modeled first as randomly located point scatterers and second as aggregates moving across the ultrasound beam. Next, spread of flow and flow gradient were simulated. IVUS flow measurements were used to study the influence of the ring-down size on flow measurements. Coronary Flow Reserve (CFR) was computed from this data and from a calibrated Transonic flowmeter. The decorrelation pattern for point scatterers, for aggregates and for non-homogeneous flow is in agreement with theoretical predictions from sound field calculations. Underestimation of flow occurs by the ring-down obscuring but good agreement between IVUS and flowmeter CFR was found.

Original language	English
Pages (from-to)	5-8
Number of pages	4
Journal	Computers in Cardiology
Publication status	Published - 2001
Event	Computer in Cardiology 2001 - Rotterdam, Netherlands Duration: 23 Sept 2001 → 26 Sept 2001

Cite this

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title = "Quantitative IVUS blood flow using an array catheter",

abstract = "In recent years, a new method to measure transverse blood flow, based on the decorrelation of the Radio Frequency (RF) signals has been introduced. In this paper, we studied the decorrelation characteristics of transverse blood flow using an intravascular ultrasound (IVUS) array catheter by means of computer modeling. Blood was modeled first as randomly located point scatterers and second as aggregates moving across the ultrasound beam. Next, spread of flow and flow gradient were simulated. IVUS flow measurements were used to study the influence of the ring-down size on flow measurements. Coronary Flow Reserve (CFR) was computed from this data and from a calibrated Transonic flowmeter. The decorrelation pattern for point scatterers, for aggregates and for non-homogeneous flow is in agreement with theoretical predictions from sound field calculations. Underestimation of flow occurs by the ring-down obscuring but good agreement between IVUS and flowmeter CFR was found.",

author = "Lupotti, {F. A.} and F. Mastik and Carlier, {S. G.} and C{\'e}spedes, {E. I.} and {Van Der Steen}, {A. F.W.}",

year = "2001",

language = "English",

pages = "5--8",

journal = "Computers in Cardiology",

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T1 - Quantitative IVUS blood flow using an array catheter

AU - Lupotti, F. A.

AU - Mastik, F.

AU - Carlier, S. G.

AU - Céspedes, E. I.

AU - Van Der Steen, A. F.W.

PY - 2001

Y1 - 2001

N2 - In recent years, a new method to measure transverse blood flow, based on the decorrelation of the Radio Frequency (RF) signals has been introduced. In this paper, we studied the decorrelation characteristics of transverse blood flow using an intravascular ultrasound (IVUS) array catheter by means of computer modeling. Blood was modeled first as randomly located point scatterers and second as aggregates moving across the ultrasound beam. Next, spread of flow and flow gradient were simulated. IVUS flow measurements were used to study the influence of the ring-down size on flow measurements. Coronary Flow Reserve (CFR) was computed from this data and from a calibrated Transonic flowmeter. The decorrelation pattern for point scatterers, for aggregates and for non-homogeneous flow is in agreement with theoretical predictions from sound field calculations. Underestimation of flow occurs by the ring-down obscuring but good agreement between IVUS and flowmeter CFR was found.

AB - In recent years, a new method to measure transverse blood flow, based on the decorrelation of the Radio Frequency (RF) signals has been introduced. In this paper, we studied the decorrelation characteristics of transverse blood flow using an intravascular ultrasound (IVUS) array catheter by means of computer modeling. Blood was modeled first as randomly located point scatterers and second as aggregates moving across the ultrasound beam. Next, spread of flow and flow gradient were simulated. IVUS flow measurements were used to study the influence of the ring-down size on flow measurements. Coronary Flow Reserve (CFR) was computed from this data and from a calibrated Transonic flowmeter. The decorrelation pattern for point scatterers, for aggregates and for non-homogeneous flow is in agreement with theoretical predictions from sound field calculations. Underestimation of flow occurs by the ring-down obscuring but good agreement between IVUS and flowmeter CFR was found.

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M3 - Conference article

AN - SCOPUS:0035716729

SN - 0276-6574

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JO - Computers in Cardiology

JF - Computers in Cardiology

T2 - Computer in Cardiology 2001

Y2 - 23 September 2001 through 26 September 2001

ER -

Quantitative IVUS blood flow using an array catheter

Abstract

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