CONTRAST IN VARIABLE FLIP ANGLE FAST MR IMAGING.

S. Vinitski; M. Z. Fuka; John M Boone; A. D'Adamo; M. D. Rifkin; R. H. Griffey; J. D. Wicks; W. W. Orrison; N. A. Matwiyoff

CONTRAST IN VARIABLE FLIP ANGLE FAST MR IMAGING.

S. Vinitski, M. Z. Fuka, John M Boone, A. D'Adamo, M. D. Rifkin, R. H. Griffey, J. D. Wicks, W. W. Orrison, N. A. Matwiyoff

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

10 Scopus citations

Abstract

Signal intensity in magnetic resonance imaging (MRI) is described by the solution to the Bloch equations. Image behavior is calculated for the variable-angle gradient refocusing and conventional spin-echo techniques. It is found that by proper manipulation of the excitation angle (and echo time in spin-echo sequences), the imaging time can be reduced up to twentyfold for the gradient refocusing technique and fourfold for the conventional spin-echo imaging. The contrast obtained is comparable to that acquired in conventional MRI. Imaging experiments performed on phantoms and human heads are in good agreement with theoretical results.

Original language	English (US)
Pages (from-to)	1110-1115
Number of pages	6
Journal	IEEE Transactions on Nuclear Science
Volume	NS-34
Issue number	5
State	Published - 1800
Externally published	Yes

ASJC Scopus subject areas

Nuclear Energy and Engineering
Electrical and Electronic Engineering

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title = "CONTRAST IN VARIABLE FLIP ANGLE FAST MR IMAGING.",

abstract = "Signal intensity in magnetic resonance imaging (MRI) is described by the solution to the Bloch equations. Image behavior is calculated for the variable-angle gradient refocusing and conventional spin-echo techniques. It is found that by proper manipulation of the excitation angle (and echo time in spin-echo sequences), the imaging time can be reduced up to twentyfold for the gradient refocusing technique and fourfold for the conventional spin-echo imaging. The contrast obtained is comparable to that acquired in conventional MRI. Imaging experiments performed on phantoms and human heads are in good agreement with theoretical results.",

author = "S. Vinitski and Fuka, {M. Z.} and Boone, {John M} and A. D'Adamo and Rifkin, {M. D.} and Griffey, {R. H.} and Wicks, {J. D.} and Orrison, {W. W.} and Matwiyoff, {N. A.}",

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T1 - CONTRAST IN VARIABLE FLIP ANGLE FAST MR IMAGING.

AU - Vinitski, S.

AU - Fuka, M. Z.

AU - Boone, John M

AU - D'Adamo, A.

AU - Rifkin, M. D.

AU - Griffey, R. H.

AU - Wicks, J. D.

AU - Orrison, W. W.

AU - Matwiyoff, N. A.

PY - 1800

Y1 - 1800

N2 - Signal intensity in magnetic resonance imaging (MRI) is described by the solution to the Bloch equations. Image behavior is calculated for the variable-angle gradient refocusing and conventional spin-echo techniques. It is found that by proper manipulation of the excitation angle (and echo time in spin-echo sequences), the imaging time can be reduced up to twentyfold for the gradient refocusing technique and fourfold for the conventional spin-echo imaging. The contrast obtained is comparable to that acquired in conventional MRI. Imaging experiments performed on phantoms and human heads are in good agreement with theoretical results.

AB - Signal intensity in magnetic resonance imaging (MRI) is described by the solution to the Bloch equations. Image behavior is calculated for the variable-angle gradient refocusing and conventional spin-echo techniques. It is found that by proper manipulation of the excitation angle (and echo time in spin-echo sequences), the imaging time can be reduced up to twentyfold for the gradient refocusing technique and fourfold for the conventional spin-echo imaging. The contrast obtained is comparable to that acquired in conventional MRI. Imaging experiments performed on phantoms and human heads are in good agreement with theoretical results.

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