Fast magnetization transfer MR imaging

Simon Vinitski; Feroze B. Mohamed; Scott Faro; Carlos Gonzalez; Hector V. Ortega; Donald G. Mitchell; Eric K. Outwater

Fast magnetization transfer MR imaging

Simon Vinitski, Feroze B. Mohamed, Scott Faro, Carlos Gonzalez, Hector V. Ortega, Donald G. Mitchell, Eric K. Outwater

School of Medicine

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We have implemented a new magnetization transfer (MT) technique, to decrease total imaging time and thus improve efficiency of MT based MRI. By judiciously rescaling different RF pulses, and utilizing maximum transmitter gain, we were able to generate very short and powerful Mt pulse(s). MRI and MRA in normal and patients with MS were performed, with and without MT application. Phantom experiments indicated 1-2 kHz offset to be the optimal. MT based MRA demonstrated substantial improvement in conspicuity of small vessels with minimum increase in imaging time. MT based MRI showed 30% improvement in MT contrast as well. Importantly, both peak and average SAR values were within FDA approved safety limits.

Original language	English (US)
Pages (from-to)	580-581
Number of pages	2
Journal	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume	16
Issue number	pt 1
State	Published - Dec 1 1994
Event	Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2) - Baltimore, MD, USA Duration: Nov 3 1994 → Nov 6 1994

ASJC Scopus subject areas

Signal Processing
Biomedical Engineering
Computer Vision and Pattern Recognition
Health Informatics

Cite this

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title = "Fast magnetization transfer MR imaging",

abstract = "We have implemented a new magnetization transfer (MT) technique, to decrease total imaging time and thus improve efficiency of MT based MRI. By judiciously rescaling different RF pulses, and utilizing maximum transmitter gain, we were able to generate very short and powerful Mt pulse(s). MRI and MRA in normal and patients with MS were performed, with and without MT application. Phantom experiments indicated 1-2 kHz offset to be the optimal. MT based MRA demonstrated substantial improvement in conspicuity of small vessels with minimum increase in imaging time. MT based MRI showed 30% improvement in MT contrast as well. Importantly, both peak and average SAR values were within FDA approved safety limits.",

author = "Simon Vinitski and Mohamed, {Feroze B.} and Scott Faro and Carlos Gonzalez and Ortega, {Hector V.} and Mitchell, {Donald G.} and Outwater, {Eric K.}",

year = "1994",

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day = "1",

language = "English (US)",

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pages = "580--581",

journal = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

issn = "0589-1019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "pt 1",

note = "Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2) ; Conference date: 03-11-1994 Through 06-11-1994",

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TY - JOUR

T1 - Fast magnetization transfer MR imaging

AU - Vinitski, Simon

AU - Mohamed, Feroze B.

AU - Faro, Scott

AU - Gonzalez, Carlos

AU - Ortega, Hector V.

AU - Mitchell, Donald G.

AU - Outwater, Eric K.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - We have implemented a new magnetization transfer (MT) technique, to decrease total imaging time and thus improve efficiency of MT based MRI. By judiciously rescaling different RF pulses, and utilizing maximum transmitter gain, we were able to generate very short and powerful Mt pulse(s). MRI and MRA in normal and patients with MS were performed, with and without MT application. Phantom experiments indicated 1-2 kHz offset to be the optimal. MT based MRA demonstrated substantial improvement in conspicuity of small vessels with minimum increase in imaging time. MT based MRI showed 30% improvement in MT contrast as well. Importantly, both peak and average SAR values were within FDA approved safety limits.

AB - We have implemented a new magnetization transfer (MT) technique, to decrease total imaging time and thus improve efficiency of MT based MRI. By judiciously rescaling different RF pulses, and utilizing maximum transmitter gain, we were able to generate very short and powerful Mt pulse(s). MRI and MRA in normal and patients with MS were performed, with and without MT application. Phantom experiments indicated 1-2 kHz offset to be the optimal. MT based MRA demonstrated substantial improvement in conspicuity of small vessels with minimum increase in imaging time. MT based MRI showed 30% improvement in MT contrast as well. Importantly, both peak and average SAR values were within FDA approved safety limits.

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M3 - Conference article

AN - SCOPUS:0028736710

SN - 0589-1019

VL - 16

SP - 580

EP - 581

JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

IS - pt 1

T2 - Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2)

Y2 - 3 November 1994 through 6 November 1994

ER -

Fast magnetization transfer MR imaging

Abstract

ASJC Scopus subject areas

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