Observation of significant signal voids in images of large biological samples at 11.1 T

被引：22

作者：

Beck, BL

Jenkins, K

Caserta, J

Padgett, K

Fitzsimmons, J

Blackband, SJ ^{[1
]}

机构：

[1] Univ Florida, Dept Neurosci, Gainesville, FL 32610 USA

[2] Univ Florida, McKnight Brain Inst, Gainesville, FL USA

[3] Analog Devices Inc, Winston Salem, NC USA

[4] Univ Florida, Dept Nucl & Radiol Sci, Gainesville, FL USA

[5] Univ Florida, Dept Radiol, Gainesville, FL USA

[6] Univ Florida, Ctr Struct Biol, Gainesville, FL USA

[7] Natl High Magnet Field Lab, Tallahassee, FL USA

来源：

MAGNETIC RESONANCE IN MEDICINE | 2004年 / 51卷 / 06期

关键词：

high magnetic fields; image artifacts; excised brain;

D O I：

10.1002/mrm.20120

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Proton MRI of large biological samples were obtained on an 11.1 T/40 cm instrument. Images were obtained of a fixed human brain and a large piece of fresh beef. The proton MR images demonstrate severe distortions within these conductive samples, indicative of shortened electrical wavelengths and wave behavior within the sample. These observations have significant implications with respect to the continuing evolution of MR to higher magnetic field strengths on large samples, particularly on humans. (C) 2004 Wiley-Liss, Inc.

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收藏

页码：1103 / 1107

页数：5

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