Size-optimized 32-channel brain arrays for 3 T pediatric imaging
Size-optimized 32-channel receive array coils were developed for five age groups, neonates, 6 months old, 1 year old, 4 years old, and 7 years old, and evaluated for pediatric brain imaging. The array consisted of overlapping circular surface coils laid out on a close-fitting coil-former. The two-se...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Wiley-Blackwell Pubishers
2012
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| Online Access: | http://hdl.handle.net/1721.1/71156 https://orcid.org/0000-0003-3853-7885 |
| _version_ | 1826209260312199168 |
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| author | Keil, Boris Alagappan, Vijay Mareyam, Azma McNab, Jennifer A. Fujimoto, Kyoko Tountcheva, Venata Triantafyllou, Christina Dilks, Daniel D. Kanwisher, Nancy Lin, Weili Grant, P. Ellen Wald, Lawrence |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Keil, Boris Alagappan, Vijay Mareyam, Azma McNab, Jennifer A. Fujimoto, Kyoko Tountcheva, Venata Triantafyllou, Christina Dilks, Daniel D. Kanwisher, Nancy Lin, Weili Grant, P. Ellen Wald, Lawrence |
| author_sort | Keil, Boris |
| collection | MIT |
| description | Size-optimized 32-channel receive array coils were developed for five age groups, neonates, 6 months old, 1 year old, 4 years old, and 7 years old, and evaluated for pediatric brain imaging. The array consisted of overlapping circular surface coils laid out on a close-fitting coil-former. The two-section coil former design was obtained from surface contours of aligned three-dimensional MRI scans of each age group. Signal-to-noise ratio and noise amplification for parallel imaging were evaluated and compared to two coils routinely used for pediatric brain imaging; a commercially available 32-channel adult head coil and a pediatric-sized birdcage coil. Phantom measurements using the neonate, 6-month-old, 1-year-old, 4-year-old, and 7-year-old coils showed signal-to-noise ratio increases at all locations within the brain over the comparison coils. Within the brain cortex the five dedicated pediatric arrays increased signal-to-noise ratio by up to 3.6-, 3.0-, 2.6-, 2.3-, and 1.7-fold, respectively, compared to the 32-channel adult coil, as well as improved G-factor maps for accelerated imaging. This study suggests that a size-tailored approach can provide significant sensitivity gains for accelerated and unaccelerated pediatric brain imaging. |
| first_indexed | 2024-09-23T14:19:43Z |
| format | Article |
| id | mit-1721.1/71156 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:19:43Z |
| publishDate | 2012 |
| publisher | Wiley-Blackwell Pubishers |
| record_format | dspace |
| spelling | mit-1721.1/711562022-09-29T08:44:24Z Size-optimized 32-channel brain arrays for 3 T pediatric imaging Keil, Boris Alagappan, Vijay Mareyam, Azma McNab, Jennifer A. Fujimoto, Kyoko Tountcheva, Venata Triantafyllou, Christina Dilks, Daniel D. Kanwisher, Nancy Lin, Weili Grant, P. Ellen Wald, Lawrence Harvard University--MIT Division of Health Sciences and Technology Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences McGovern Institute for Brain Research at MIT Kanwisher, Nancy Kanwisher, Nancy Triantafyllou, Christina Dilks, Daniel D. Wald, Lawrence Size-optimized 32-channel receive array coils were developed for five age groups, neonates, 6 months old, 1 year old, 4 years old, and 7 years old, and evaluated for pediatric brain imaging. The array consisted of overlapping circular surface coils laid out on a close-fitting coil-former. The two-section coil former design was obtained from surface contours of aligned three-dimensional MRI scans of each age group. Signal-to-noise ratio and noise amplification for parallel imaging were evaluated and compared to two coils routinely used for pediatric brain imaging; a commercially available 32-channel adult head coil and a pediatric-sized birdcage coil. Phantom measurements using the neonate, 6-month-old, 1-year-old, 4-year-old, and 7-year-old coils showed signal-to-noise ratio increases at all locations within the brain over the comparison coils. Within the brain cortex the five dedicated pediatric arrays increased signal-to-noise ratio by up to 3.6-, 3.0-, 2.6-, 2.3-, and 1.7-fold, respectively, compared to the 32-channel adult coil, as well as improved G-factor maps for accelerated imaging. This study suggests that a size-tailored approach can provide significant sensitivity gains for accelerated and unaccelerated pediatric brain imaging. 2012-06-14T19:37:18Z 2012-06-14T19:37:18Z 2011-12 2011-03 Article http://purl.org/eprint/type/JournalArticle 0740-3194 1522-2594 http://hdl.handle.net/1721.1/71156 Keil, Boris et al. “Size-optimized 32-channel Brain Arrays for 3 T Pediatric Imaging.” Magnetic Resonance in Medicine 66.6 (2011): 1777–1787. Web. https://orcid.org/0000-0003-3853-7885 en_US http://dx.doi.org/10.1002/mrm.22961 Magnetic Resonance in Medicine Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley-Blackwell Pubishers PubMed Central |
| spellingShingle | Keil, Boris Alagappan, Vijay Mareyam, Azma McNab, Jennifer A. Fujimoto, Kyoko Tountcheva, Venata Triantafyllou, Christina Dilks, Daniel D. Kanwisher, Nancy Lin, Weili Grant, P. Ellen Wald, Lawrence Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title | Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title_full | Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title_fullStr | Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title_full_unstemmed | Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title_short | Size-optimized 32-channel brain arrays for 3 T pediatric imaging |
| title_sort | size optimized 32 channel brain arrays for 3 t pediatric imaging |
| url | http://hdl.handle.net/1721.1/71156 https://orcid.org/0000-0003-3853-7885 |
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