{"doi":"10.1101/2023.06.06.23290983","title":"Low-Field Combined Diffusion-Relaxation MRI for Mapping Placenta Structure and Function","abstract":"Abstract Purpose Demonstrating quantitative multi-parametric mapping in the placenta with combined T2*-diffusion MRI at low-field (0.55T). Methods We present 57 placental MRI scans performed on a commercially available 0.55T scanner. We acquired the images using a combined T2*-diffusion technique scan that simultaneously acquires multiple diffusion preparations and echo times. We processed the data to produce quantitative T2* and diffusivity maps using a combined T2*-ADC model. We compared the derived quantitative parameters across gestation in healthy controls and a cohort of clinical cases. Results Quantitative parameter maps closely resemble those from previous experiments at higher field strength, with similar trends in T2* and ADC against gestational age observed. Conclusion Combined T2*-diffusion placental MRI is reliably achievable at 0.55T. The advantages of lower field strength - such as cost, ease of deployment, increased accessibility and patient comfort due to the wider bore, and increased T2* for larger dynamic ranges - can support the widespread roll out of placental MRI as an adjunct to ultrasound during pregnancy.","journal":"medRxiv","year":2023,"id":396654,"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":2,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.8477,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2023-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1161380,"name":"Jordina Aviles Verdera","orcid":"0009-0007-7575-4244","position":1,"is_corresponding":false},{"id":1161381,"name":"Raphaël Tomi‐Tricot","orcid":"0000-0002-6149-9154","position":2,"is_corresponding":false},{"id":250913,"name":"Joseph V. Hajnal","orcid":"0000-0002-2690-5495","position":3,"is_corresponding":false},{"id":244799,"name":"Daniel C. Alexander","orcid":"0000-0003-2439-350X","position":4,"is_corresponding":false},{"id":360900,"name":"Jana Hutter","orcid":"0000-0003-3476-3500","position":5,"is_corresponding":false},{"id":360901,"name":"Paddy J. Slator","orcid":"0000-0001-6967-989X","position":0,"is_corresponding":true}],"reference_count":42,"raw_metadata":null,"created_at":"2026-07-19T01:19:31.472087Z","pmid":"37333076","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":[]}