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 |
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ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering
Cite this
CONTRAST IN VARIABLE FLIP ANGLE FAST MR IMAGING. / Vinitski, S.; Fuka, M. Z.; Boone, John M; D'Adamo, A.; Rifkin, M. D.; Griffey, R. H.; Wicks, J. D.; Orrison, W. W.; Matwiyoff, N. A.
In: IEEE Transactions on Nuclear Science, Vol. NS-34, No. 5, 1800, p. 1110-1115.Research output: Contribution to journal › Article
}
TY - JOUR
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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UR - http://www.scopus.com/inward/citedby.url?scp=0023670568&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0023670568
VL - NS-34
SP - 1110
EP - 1115
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
SN - 0018-9499
IS - 5
ER -