Quantification of T(2) in the abdomen at 3.0 T using a T(2)-prepared balanced turbo field echo sequence.

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Caroline L HoadPenny A Gowland

Abstract

The T(2)-prepared balanced turbo field echo sequence has been used to measure T(2) in phantoms and in vivo in the abdomen with low sensitivity to radiofrequency pulse errors. The effects of noise, errors in the pulse flip angles, and off resonance effects on the results have been simulated. It was found from simulations that for normal conditions, including the flip angle in the fit improved the systematic errors due to radiofrequency pulse errors and noise in the results to less than 1% without significantly increasing the random errors. For a 0.3% noise level, the standard deviation in the measured T(2) was approximately 0.003 ms. Off-resonance effects had a minimal effect on the measured T(2) value. The T(2) at 3.0 T of various abdominal organs was measured, in particular the liver (31 +/- 6 ms), spleen (54 +/- 15 ms), kidney cortex (76 +/- 6 ms), kidney medulla (61 +/- 8 ms), and pancreas (42 +/- 20 ms).

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Citations

Mar 2, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Philipp EhsesVikas Gulani
Jul 1, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Thomas BenkertFelix A Breuer
Jan 15, 2019·Journal of Magnetic Resonance Imaging : JMRI·Naïk Vietti VioliSabine Schmidt
Oct 21, 2011·Journal of Clinical Gastroenterology·Henning Ernst AdamekChristina Esser
Sep 17, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Edwin AbdurakmanRichard Bowtell
Aug 21, 2019·Abdominal Radiology·Saeed GhandiliLinda C Chu

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