High-resolution phased-array MRI of the human brain at 7 tesla: Initial experience in multiple sclerosis patients

Journal of Neuroimaging

Volumn 20, Issue 2, 2010, Pages 141-147

  Metcalf, Meredith ^a,b   Xu, Duan ^b   Okuda, Darin T ^b   Carvajal, Lucas ^b   Srinivasan, Radhika ^b   Kelley, Douglas A C ^c   Mukherjee, Pratik ^a,b   Nelson, Sarah J ^a,b   Vigneron, Daniel B ^a,b   Pelletier, Daniel ^b,d  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c GE HEALTHCARE   (United States)

^d UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

7T; Cortical lesions; High resolution; Multiple sclerosis

Indexed keywords

ADULT; ARTICLE; CLINICAL ARTICLE; CONTROLLED STUDY; FEMALE; GRAY MATTER; HUMAN; IMAGE PROCESSING; IMAGE QUALITY; MALE; MULTIPLE SCLEROSIS; NEUROIMAGING; NUCLEAR MAGNETIC RESONANCE IMAGING; SENSITIVITY AND SPECIFICITY; SIGNAL NOISE RATIO; WHITE MATTER; AGED; BRAIN; DEVICE FAILURE ANALYSIS; DEVICES; EQUIPMENT DESIGN; IMAGE ENHANCEMENT; MAGNETISM; MIDDLE AGED; MYELINATED NERVE; PATHOLOGY; PILOT STUDY; REPRODUCIBILITY; TRANSDUCER;

ADULT; AGED; BRAIN; EQUIPMENT DESIGN; EQUIPMENT FAILURE ANALYSIS; FEMALE; HUMANS; IMAGE ENHANCEMENT; MAGNETIC RESONANCE IMAGING; MAGNETICS; MALE; MIDDLE AGED; MULTIPLE SCLEROSIS; NERVE FIBERS, MYELINATED; PILOT PROJECTS; REPRODUCIBILITY OF RESULTS; SENSITIVITY AND SPECIFICITY; TRANSDUCERS;

EID: 77950615315     PISSN: 10512284     EISSN: 15526569     Source Type: Journal    
DOI: 10.1111/j.1552-6569.2008.00338.x     Document Type: Article

References (25)

1. Ladd MR. High-field-strength magnetic resonance potential and limits. Top Magn Reson Imaging 2007 18 (2 139 152.
2. Ugurbil K, Garwood M, Wllermann J, et al. Imaging at high magnetic fields: initial experience at 4T. Magn Reson Q 1993 9 : 259 277.
3. Robitaille PM, Kangarlu A, Abduljalil AM. RF penetration in ultra high field MRI: challenges in visualizing details in the center of the human brain. J Comput Assist Tomogr 1999 23 (6 850 856.
4. Robitaille PM, Abduljalil AM, Kangarlu A, et al. Human magnetic resonance imaging at 8T. NMR Biomed 1998 11 : 263 265.
5. Vaughan JT, Garwood M, Collins CM, et al. 7T vs 4T: RF power, homogeneity, and signal-to-noise comparison in head images. Magn Reson Med 2001 46 : 24 40.
6. Vaughan JT, DelaBarre L, Snyder C, et al. 9.4T human MRI: preliminary results. Magn Reson Med 2006 56 : 1274 1282.
7. 2*-weighted MRI of the human brain at 7.0 T. NeuroImage 2006 32 : 1032 1040.
8. Collins CM, Li S, Smith MB. SAR and B1 field distributions in a heterogeneous human head model within a birdcage coil. Specific energy absorption rate. Magn Reson Med 1998 40 (6 847 856.
9. Wiggins GC, Potthast A, Triantafyllou C, et al. Eight-channel phased array coil and detunable TEM volume coil for 7 T brain imaging. Magn Reson Med 2005 54 (1 235 240.
10. th Annual Scientific Meeting of the International Society of Magnetic Resonance in Medicine. p1042.
11. van Morze C, Xu D, Purcell DD, et al. Intracranial time-of-flight MR angiography at 7T with comparison to 3T. J Magn Reson Imaging 2007 26 (4 900 904.
12. Augustinack JC, Van Der Kouwe AJ, Blackwell ML, et al. Detection of entorhinal layer II using 7Tesla [corrected] magnetic resonance imaging. Ann Neurol 2005 57 (4 489 494.
13. Kidd D, Barkhof F, McConnell R, et al. Cortical lesions in multiple sclerosis. Brain 1999 122 : 17 26.
14. Bo L, Vedeler CA, Nyland HI, et al. Subpial demyelination in the cerebral cortex of multiple sclerosis patients. J Neuropath and Exp Neuro 2003 62 (7 723 732.
15. Guerts JJ, Bo L, Pouwels PJ, et al. Cortical lesions in multiple sclerosis: combined postmortem MR imaging and histopathology. Am J Neuroradiol 2005 26 : 572 577.
16. Bakshi R, Ariyaratana S, Benedict RH, et al. Fluid-attenuated inversion recovery magnetic resonance imaging detects cortical and juxtacortical multiple sclerosis lesions. Arch Neurol 2001 58 : 742 748.
17. Guerts JJ, Pouwels PJ, Uitdehaag BM, et al. Intracorical leions in multiple sclerosis: improved detection with 3D double inversion-recovery MR imaging. Radiology 2005 236 : 254 260.
18. Constantinides CD, Atalar E, McVeigh ER. Signal-to-noise measurements in magnitude images from NMR phase arrays. Magn Reson Med 1997 38 : 852 857.
19. Wald LL, Carvajal L, Moyher SE, et al. Phased array detector and an automated intensity correction algorithm for high resolution MR imaging of the human brain. Magn Reson Med 1995 34 : 433 439.
20. Bo L, Guerts JJG, Van Der Valk P, et al. Lack of correlation between cortical demyelination and white matter pathologic changes in multiple sclerosis. Arch Neurol 2007 64 : 76 80.
21. Tallantyre EC, Brookes MJ, Dixon JE, et al. Demonstrating the perivascular distribution of MS lesions in vivo with 7-Tesla MRI. Neurology 2008 70 (22 2076 2078.
22. Ge Y, Zohrabian VM, Grossman RI. Seven-Tesla magnetic resonance imaging: new vision of microvascular abnormalities in multiple sclerosis. Arch Neurol 2008 65 (6 812 816.
23. Hammond KE, Lupo JM, Xu D, et al. Development of a robust method for generating 7.0 T multichannel phase images of the brain with application to normal volunteers and patients with neurological diseases. Neuroimage 2008 39 (4 1682 1692.
24. Wattjes MP, Lutterbey GG, Gieseke J, et al. Double inversion recovery brain imaging at 3T: diagnostic value in the detection of multiple sclerosis lesions. Am J Neuroradiol 2007 28 (1 54 59.
25. Theysohn JM, Maderwald S, Kraff O, et al. Subjective acceptance of 7 Tesla MRI for human imaging. MAGMA 2008 21 (1-2 63 72.