Rapid single-scan T2*-mapping using exponential excitation pulses and image-based correction for linear background gradients

Magnetic Resonance in Medicine

Volumn 62, Issue 1, 2009, Pages 263-268

  Baudrexel, Simon ^a   Volz, Steffen ^a   Preibisch, Christine ^a   Klein, Johannes C ^a   Steinmetz, Helmuth ^a   Hilker, Rüdiger ^a   Deichmann, Ralf ^a  

^a GOETHE UNIVERSITY   (Germany)

Author keywords

Effective transverse relaxation time; Field inhomogeneity; Gradient echo; Susceptibility artifact; T2*

Indexed keywords

FIELD INHOMOGENEITY; GRADIENT ECHO; HEALTHY VOLUNTEERS; PHANTOM EXPERIMENT; PHASE INFORMATION; STATIC MAGNETIC FIELDS; SUSCEPTIBILITY ARTIFACTS; TRANSVERSE RELAXATION TIME;

MAPPING;

ARTICLE; ECHO PLANAR IMAGING; HUMAN; HUMAN EXPERIMENT; IMAGING SYSTEM; MEASUREMENT; NORMAL HUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING;

EID: 67650097317     PISSN: 07403194     EISSN: 15222594     Source Type: Journal    
DOI: 10.1002/mrm.21971     Document Type: Article

References (21)

1. 2* measurements. Magn Reson Med 2000;44:358-366.
2. Ojemann JG, Akbudak E, Snyder AZ, McKinstry RC, Raichle ME, Conturo TE. Anatomic localization and quantitative analysis of gradient refocused echo-planar fMRI susceptibility artifacts. Neuroimage 1997;6:156-167.
3. Dennie J, Mandeville JB, Boxerman JL, Packard SD, Rosen BR, Weisskoff RM. NMR imaging of changes in vascular morphology due to tumor angiogenesis. Magn Reson Med 1998;40:793-799.
4. An H, Lin W. Cerebral oxygen extraction fraction and cerebral venous blood volume measurements using MRI: effects of magnetic field variation. Magn Reson Med 2002;47:958-966.
5. Dahnke H, Schaeffter T. Limits of detection of SPIO at 3.0 T using T2 relaxometry. Magn Reson Med 2005;53:1202-1206.
6. Wehrli FW, Hopkins JA, Hwang SN, Song HK, Snyder PJ, Haddad JG. Cross-sectional study of osteopenia with quantitative MR imaging and bone densitometry. Radiology 2000;217:527-538.
7. 2*- weighted MRI at 3 Tesla. Magn Reson Med 1994;32:335-341.
8. Martin WR, Wieler M, Gee M. Midbrain iron content in early Parkinson disease: a potential biomarker of disease status. Neurology 2008;70(16 Pt 2):1411-1417.
9. Young IR, Cox IJ, Bryant DJ, Bydder GM. The benefits of increasing spatial resolution as a means of reducing artifacts due to field inhomogeneities. Magn Reson Imaging 1988;6:585-590.
10. 2* measurements with macroscopic B0 inhomogeneity compensation. Magn Reson Med 2006;55:1390-1395.
11. 2*-weighted images at high fields by gradient-echo slice excitation profile imaging. Magn Reson Med 1998;39:402-409.
12. Constable RT. Functional MR imaging using gradient-echo echo-planar imaging in the presence of large static field inhomogeneities. J Magn Reson Imaging 1995;5:746-752.
13. Frahm J, Merboldt KD, Hanicke W. Direct FLASH MR imaging of magnetic field inhomogeneities by gradient compensation. Magn Reson Med 1988;6:474-480.
14. 2* at high B0. Magn Reson Med 2002;48:867-876.
15. 2* mapping with 3D compensation of local susceptibility gradients in multiple regions. Neuroimage 2003;18:390-400.
16. Pruessmann KP, Weiger M, Scheidegger MB, Boesiger P. SENSE: sensitivity encoding for fast MRI. Magn Reson Med 1999;42:952-962.
17. Preibisch C, Volz S, Anti S, Deichmann R. Exponential excitation pulses for improved water content mapping in the presence of background gradients. Magn Reson Med 2008;60:908-916.
18. Ericsson A, Weis J, Hemmingsson A, Wikstrom M, Sperber GO. Measurements of magnetic field variations in the human brain using a 3D-FT multiple gradient echo technique. Magn Reson Med 1995;33:171-177.
19. 2* maps in the healthy human brain. J Magn Reson Imaging 2007;26:1413-1420.
20. 2′ in brain parenchyma. AJNR Am J Neuroradiol 2008;29:950-955.
21. Weiskopf N, Hutton C, Josephs O, Turner R, Deichmann R. Optimized EPI for fMRI studies of the orbitofrontal cortex: compensation of susceptibility- induced gradients in the readout direction. MAGMA 2007;20:39-49.