Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow

Joseph H. Battocletti; John H. Linehan; Sanford J. Larson; Anthony Sances; Robert L. Bowman; Vsevelod Kudravcev; William K. Genthe; Richard E. Halbach; Silas M. Evans

doi:10.1109/TBME.1972.324086

Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow

Joseph H. Battocletti, John H. Linehan, Sanford J. Larson, Anthony Sances, Robert L. Bowman, Vsevelod Kudravcev, William K. Genthe, Richard E. Halbach, Silas M. Evans

Biomedical Engineering

Research output: Contribution to journal › Letter › peer-review

7 Scopus citations

Abstract

Nuclear magnetic resonance (NMR) techniques have been applied to the measurement of steady or quasi-steady flow by using, principally, the tag-detect method. This paper describes a two-magnet NMR flowmeter that can be used to measure pulsatile flow. The pulsatile nature of the flow causes a pulsed magnetization of the fluid, which is detected by a flow-sensitive NMR detector. A parabolic velocity profile has been assumed. The results of theoretical computations closely approximate in vitro data from a 1.6-mm ID rigid tube with respect to the shape of the NMR signal and to the proportionality of the NMR signal amplitude to flow rate. Selected in vivo results are also presented.

Original language	English (US)
Pages (from-to)	403-407
Number of pages	5
Journal	IEEE Transactions on Biomedical Engineering
Volume	BME-19
Issue number	6
DOIs	https://doi.org/10.1109/TBME.1972.324086
State	Published - Nov 1972

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Biomedical Engineering

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10.1109/TBME.1972.324086

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title = "Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow",

abstract = "Nuclear magnetic resonance (NMR) techniques have been applied to the measurement of steady or quasi-steady flow by using, principally, the tag-detect method. This paper describes a two-magnet NMR flowmeter that can be used to measure pulsatile flow. The pulsatile nature of the flow causes a pulsed magnetization of the fluid, which is detected by a flow-sensitive NMR detector. A parabolic velocity profile has been assumed. The results of theoretical computations closely approximate in vitro data from a 1.6-mm ID rigid tube with respect to the shape of the NMR signal and to the proportionality of the NMR signal amplitude to flow rate. Selected in vivo results are also presented.",

author = "Battocletti, {Joseph H.} and Linehan, {John H.} and Larson, {Sanford J.} and Anthony Sances and Bowman, {Robert L.} and Vsevelod Kudravcev and Genthe, {William K.} and Halbach, {Richard E.} and Evans, {Silas M.}",

year = "1972",

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language = "English (US)",

volume = "BME-19",

pages = "403--407",

journal = "IRE transactions on medical electronics",

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T1 - Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow

AU - Battocletti, Joseph H.

AU - Linehan, John H.

AU - Larson, Sanford J.

AU - Sances, Anthony

AU - Bowman, Robert L.

AU - Kudravcev, Vsevelod

AU - Genthe, William K.

AU - Halbach, Richard E.

AU - Evans, Silas M.

PY - 1972/11

Y1 - 1972/11

N2 - Nuclear magnetic resonance (NMR) techniques have been applied to the measurement of steady or quasi-steady flow by using, principally, the tag-detect method. This paper describes a two-magnet NMR flowmeter that can be used to measure pulsatile flow. The pulsatile nature of the flow causes a pulsed magnetization of the fluid, which is detected by a flow-sensitive NMR detector. A parabolic velocity profile has been assumed. The results of theoretical computations closely approximate in vitro data from a 1.6-mm ID rigid tube with respect to the shape of the NMR signal and to the proportionality of the NMR signal amplitude to flow rate. Selected in vivo results are also presented.

AB - Nuclear magnetic resonance (NMR) techniques have been applied to the measurement of steady or quasi-steady flow by using, principally, the tag-detect method. This paper describes a two-magnet NMR flowmeter that can be used to measure pulsatile flow. The pulsatile nature of the flow causes a pulsed magnetization of the fluid, which is detected by a flow-sensitive NMR detector. A parabolic velocity profile has been assumed. The results of theoretical computations closely approximate in vitro data from a 1.6-mm ID rigid tube with respect to the shape of the NMR signal and to the proportionality of the NMR signal amplitude to flow rate. Selected in vivo results are also presented.

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Analysis of a Nuclear Magnetic Resonance Blood Flowmeter for Pulsatile Flow

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