{"doi":"10.1002/mrm.28211","title":"A within‐coil optical prospective motion‐correction system for brain imaging at 7T","abstract":"PURPOSE: Motion artifact limits the clinical translation of high-field MR. We present an optical prospective motion correction system for 7 Tesla MRI using a custom-built, within-coil camera to track an optical marker mounted on a subject. METHODS: The camera was constructed to fit between the transmit-receive coils with direct line of sight to a forehead-mounted marker, improving upon prior mouthpiece work at 7 Tesla MRI. We validated the system by acquiring a 3D-IR-FSPGR on a phantom with deliberate motion applied. The same 3D-IR-FSPGR and a 2D gradient echo were then acquired on 7 volunteers, with/without deliberate motion and with/without motion correction. Three neuroradiologists blindly assessed image quality. In 1 subject, an ultrahigh-resolution 2D gradient echo with 4 averages was acquired with motion correction. Four single-average acquisitions were then acquired serially, with the subject allowed to move between acquisitions. A fifth single-average 2D gradient echo was acquired following subject removal and reentry. RESULTS: In both the phantom and human subjects, deliberate and involuntary motion were well corrected. Despite marked levels of motion, high-quality images were produced without spurious artifacts. The quantitative ratings confirmed significant improvements in image quality in the absence and presence of deliberate motion across both acquisitions (P < .001). The system enabled ultrahigh-resolution visualization of the hippocampus during a long scan and robust alignment of serially acquired scans with interspersed movement. CONCLUSION: We demonstrate the use of a within-coil camera to perform optical prospective motion correction and ultrahigh-resolution imaging at 7 Tesla MRI. The setup does not require a mouthpiece, which could improve accessibility of motion correction during 7 Tesla MRI exams.","journal":"Magnetic Resonance in Medicine","year":2020,"id":76244,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":21,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9606,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":395215,"name":"Julian Maclaren","orcid":"0000-0001-7073-2926","position":1,"is_corresponding":false},{"id":395213,"name":"Murat Aksoy","orcid":"0000-0003-4671-4300","position":2,"is_corresponding":false},{"id":397648,"name":"Elizabeth Tong","orcid":"0000-0002-9550-8178","position":3,"is_corresponding":false},{"id":362487,"name":"Mackenzie Carlson","orcid":"0009-0007-7505-5304","position":4,"is_corresponding":false},{"id":397649,"name":"Bryan Lanzman","orcid":"0000-0002-6580-8540","position":5,"is_corresponding":false},{"id":397650,"name":"Syed Hashmi","orcid":"0000-0003-4616-7984","position":6,"is_corresponding":false},{"id":398767,"name":"Ronald D. Watkins","orcid":null,"position":7,"is_corresponding":false},{"id":304556,"name":"Jarrett Rosenberg","orcid":"0000-0003-2706-3290","position":8,"is_corresponding":false},{"id":398768,"name":"Brian Burns","orcid":null,"position":9,"is_corresponding":false},{"id":398769,"name":"Timothy W. Skloss","orcid":null,"position":10,"is_corresponding":false},{"id":397651,"name":"Dan Rettmann","orcid":"0000-0002-0117-1851","position":11,"is_corresponding":false},{"id":381492,"name":"Brian K. Rutt","orcid":"0000-0001-6516-0505","position":12,"is_corresponding":false},{"id":397652,"name":"Roland Bammer","orcid":"0000-0002-9509-5772","position":13,"is_corresponding":false},{"id":344313,"name":"Michael Zeineh","orcid":"0000-0002-6940-9096","position":14,"is_corresponding":false},{"id":362488,"name":"Phillip DiGiacomo","orcid":"0000-0002-2441-4086","position":0,"is_corresponding":true}],"reference_count":40,"raw_metadata":null,"created_at":"2026-07-18T21:47:46.469293Z","pmid":"32077521","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}