title: Brief report: approaches to 31P-MRS in awake, non-sedated children with and without autism spectrum disorder.
abstract: We piloted a suite of approaches aimed to facilitate a successful series of up to four brain and muscle (31)Phosphorus-Magnetic Resonance Spectroscopy ((31)P-MRS) scans performed in one session in 12 awake, non-sedated subjects (ages 6-18), 6 with autism spectrum disorders (ASD) and 6 controls. We targeted advanced preparation, parental input, physical comfort, short scan protocols, allocation of extra time, and subject emotional support. 100% of subjects completed at least one brain scan and one leg muscle scan: 42 of 46 attempted scans were completed (91%), with failures dominated by exercise muscle scans (completed in 6/6 controls but 3/6 cases). One completed scan lacked usable data unrelated to subject/scan procedure (orthodonture affected a frontal brain scan). As a group, these methods provide a foundation for conduct and enhancement of future MR studies in pediatric subjects with ASD.
authors: Department of Medicine, University of California, San Diego, 9500 Gilman Dr #0995, La Jolla, CA 92093-0995, USA.
authors: Laura C
authors: LC
authors: Erickson
authors: Ashley A
authors: AA
authors: Scott-Van Zeeland
authors: Gavin
authors: G
authors: Hamilton
authors: Alan
authors: A
authors: Lincoln
authors: Beatrice A
authors: BA
authors: Golomb
mesh_terms: D000293:Adolescent; D001921:Brain / Q000378:metabolism; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000523:psychology*; D005260:Female; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008297:Male; D018482:Muscle, Skeletal / Q000378:metabolism