Efficiency of background suppression for arterial spin labeling
Name
59007543-MIT.pdf
Description
Full printable version
Size
4.45 MB
Format
Adobe PDF
Checksum (MD5)
2a0b910bb34f2ffba02be22b8dafce04
Author(s)
Garcia, Dairon, 1980-
Advisor(s)
David Alsop.
Date Issued
2005
Publisher
Massachusetts Institute of Technology
Abstract
Arterial spin labeling (ASL), a technique developed for the measurement of local tissue perfusion with MRI, is heavily dependent on distinguishing irrelevant static tissue signal from the labeled blood. Background suppression can greatly reduce motion and other sources of noise in Arterial Spin Labeling MRI. More sophisticated background suppression strategies with many inversion pulses may decrease the ASL signal causing reduced signal-to-noise ratios and quantitative accuracy. Numerical simulations and in-vivo measurements were used to measure the inefficiency of different adiabatic inversion pulses and to optimize pulse selection. The results emphasize the high potential efficiency of adiabatic inversion pulses but also the limited optimal range of pulse parameters.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2005.
Includes bibliographical references (leaves 49-51).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
Persistent DSpace Link
