PMID- 38313271 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240212 DP - 2024 Jan 16 TI - Clinical Use of Bedside Portable Low-field Brain Magnetic Resonance Imaging in Patients on ECMO: The Results from Multicenter SAFE MRI ECMO Study. LID - rs.3.rs-3858221 [pii] LID - 10.21203/rs.3.rs-3858221/v1 [doi] AB - PURPOSE: Early detection of acute brain injury (ABI) is critical for improving survival for patients with extracorporeal membrane oxygenation (ECMO) support. We aimed to evaluate the safety of ultra-low-field portable MRI (ULF-pMRI) and the frequency and types of ABI observed during ECMO support. METHODS: We conducted a multicenter prospective observational study (NCT05469139) at two academic tertiary centers (August 2022-November 2023). Primary outcomes were safety and validation of ULF-pMRI in ECMO, defined as exam completion without adverse events (AEs); secondary outcomes were ABI frequency and type. RESULTS: ULF-pMRI was performed in 50 patients with 34 (68%) on venoarterial (VA)-ECMO (11 central; 23 peripheral) and 16 (32%) with venovenous (VV)-ECMO (9 single lumen; 7 double lumen). All patients were imaged successfully with ULF-pMRI, demonstrating discernible intracranial pathologies with good quality. AEs occurred in 3 (6%) patients (2 minor; 1 serious) without causing significant clinical issues.ABI was observed in ULF-pMRI scans for 22 patients (44%): ischemic stroke (36%), intracranial hemorrhage (6%), and hypoxic-ischemic brain injury (4%). Of 18 patients with both ULF-pMRI and head CT (HCT) within 24 hours, ABI was observed in 9 patients with 10 events: 8 ischemic (8 observed on ULF-oMRI, 4 on HCT) and 2 hemorrhagic (1 observed on ULF-pMRI, 2 on HCT). CONCLUSIONS: ULF-pMRI was shown to be safe and valid in ECMO patients across different ECMO cannulation strategies. The incidence of ABI was high, and ULF-pMRI may more sensitive to ischemic ABI than HCT. ULF-pMRI may benefit both clinical care and future studies of ECMO-associated ABI. FAU - Cho, Sung-Min AU - Cho SM AUID- ORCID: 0000-0002-5132-0958 AD - Johns Hopkins University School of Medicine. FAU - Khanduja, Shivalika AU - Khanduja S AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Wilcox, Christopher AU - Wilcox C AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Dinh, Kha AU - Dinh K AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Kim, Jiah AU - Kim J AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Kang, Jin Kook AU - Kang JK AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Chinedozi, Ifeanyi David AU - Chinedozi ID AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Darby, Zachary AU - Darby Z AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Acton, Matthew AU - Acton M AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Rando, Hannah AU - Rando H AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Briscoe, Jessica AU - Briscoe J AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Bush, Errol AU - Bush E AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Sair, Haris I AU - Sair HI AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Pitts, John AU - Pitts J AD - Hyperfine Inc. FAU - Arlinghaus, Lori R AU - Arlinghaus LR AD - Hyperfine Inc. FAU - Wandji, Audrey-Carelle N AU - Wandji AN AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Moreno, Elena AU - Moreno E AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Torres, Glenda AU - Torres G AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Akkanti, Bindu AU - Akkanti B AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Gavito-Higuera, Jose AU - Gavito-Higuera J AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Keller, Steven AU - Keller S AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Choi, HuiMahn A AU - Choi HA AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Kim, Bo Soo AU - Kim BS AD - Johns Hopkins Hospital: Johns Hopkins Medicine. FAU - Gusdon, Aaron AU - Gusdon A AD - UTHSC: The University of Texas Health Science Center at Houston. FAU - Whitman, Glenn Jr AU - Whitman GJ AD - Johns Hopkins Hospital: Johns Hopkins Medicine. LA - eng GR - K23 HL157610/HL/NHLBI NIH HHS/United States GR - K23 NS121628/NS/NINDS NIH HHS/United States PT - Preprint DEP - 20240116 PL - United States TA - Res Sq JT - Research square JID - 101768035 PMC - PMC10836091 OTO - NOTNLM OT - ABI OT - ECMO OT - Portable MRI OT - acute brain injury OT - critical care OT - ultra-low-field MRI COIS- Conflicts of Interest/Disclosures All other authors declare that the research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2024/02/05 06:43 MHDA- 2024/02/05 06:44 PMCR- 2024/02/02 CRDT- 2024/02/05 04:37 PHST- 2024/02/05 06:43 [pubmed] PHST- 2024/02/05 06:44 [medline] PHST- 2024/02/05 04:37 [entrez] PHST- 2024/02/02 00:00 [pmc-release] AID - rs.3.rs-3858221 [pii] AID - 10.21203/rs.3.rs-3858221/v1 [doi] PST - epublish SO - Res Sq [Preprint]. 2024 Jan 16:rs.3.rs-3858221. doi: 10.21203/rs.3.rs-3858221/v1.