{"doi":"10.1002/jmri.29291","title":"<scp>Cotyledon‐Specific</scp> Flow Evaluation of Rhesus Macaque Placental Injury Using Ferumoxytol Dynamic Contrast‐Enhanced <scp>MRI</scp>","abstract":"BACKGROUND: Recently, dynamic contrast-enhanced (DCE) MRI with ferumoxytol as contrast agent has recently been introduced for the noninvasive assessment of placental structure and function throughout. However, it has not been demonstrated under pathological conditions. PURPOSE: To measure cotyledon-specific rhesus macaque maternal placental blood flow using ferumoxytol DCE MRI in a novel animal model for local placental injury. STUDY TYPE: Prospective animal model. SUBJECTS: Placental injections of Tisseel (three with 0.5 mL and two with 1.5 mL), monocyte chemoattractant protein 1 (three with 100 μg), and three with saline as controls were performed in a total of 11 rhesus macaque pregnancies at approximate gestational day (GD 101). DCE MRI scans were performed prior (GD 100) and after (GD 115 and GD 145) the injection (term = GD 165). FIELD STRENGTH/SEQUENCE: 3 T, T1-weighted spoiled gradient echo sequence (product sequence, DISCO). ASSESSMENT: Source images were inspected for motion artefacts from the mother or fetus. Placenta segmentation and DCE processing were performed for the dynamic image series to measure cotyledon specific volume, flow, and normalized flow. Overall placental histopathology was conducted for controls, Tisseel, and MCP-1 animals and regions of tissue infarctions and necrosis were documented. Visual inspections for potential necrotic tissue were conducted for the two Tisseelx3 animals. STATISTICAL TESTS: Wilcoxon rank sum test, significance level P < 0.05. RESULTS: . Preliminary histopathological analysis shows areas of tissue necrosis from a selected cotyledon in one Tisseel-treated (single dose) animal and both Tisseelx3 (triple dose) animals. DATA CONCLUSION: This study demonstrates the feasibility of cotyledon-specific functional analysis at multiple gestational time points and injury detection in a placental rhesus macaque model through ferumoxytol-enhanced DCE MRI. LEVEL OF EVIDENCE: NA TECHNICAL EFFICACY: Stage 2.","journal":"Journal of Magnetic Resonance Imaging","year":2024,"id":467337,"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":3,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9594,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2024-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":624772,"name":"Daniel Seiter","orcid":null,"position":1,"is_corresponding":false},{"id":384145,"name":"Logan Keding","orcid":null,"position":2,"is_corresponding":false},{"id":235477,"name":"Jessica Vázquez","orcid":"0000-0002-8052-3850","position":3,"is_corresponding":false},{"id":371966,"name":"Kathleen M. Antony","orcid":"0000-0003-3537-8030","position":4,"is_corresponding":false},{"id":368477,"name":"Heather A. Simmons","orcid":"0000-0002-4862-7289","position":5,"is_corresponding":false},{"id":899655,"name":"Puja Basu","orcid":"0000-0003-4051-7998","position":6,"is_corresponding":false},{"id":368478,"name":"Andrés Mejía","orcid":"0000-0001-6088-3595","position":7,"is_corresponding":false},{"id":313994,"name":"Kevin M. Johnson","orcid":"0000-0002-8660-0853","position":8,"is_corresponding":false},{"id":382827,"name":"Aleksandar K. Stanic","orcid":"0000-0003-1946-6436","position":9,"is_corresponding":false},{"id":1300101,"name":"Ruo‐Yu Liu","orcid":null,"position":10,"is_corresponding":false},{"id":374265,"name":"Dinesh Shah","orcid":"0000-0001-7599-9945","position":11,"is_corresponding":false},{"id":350727,"name":"Thaddeus G. Golos","orcid":"0000-0002-7897-4337","position":12,"is_corresponding":false},{"id":416372,"name":"Oliver Wieben","orcid":"0000-0002-7931-1930","position":13,"is_corresponding":false},{"id":1299746,"name":"Ruiming Chen","orcid":"0009-0005-6551-7902","position":0,"is_corresponding":true}],"reference_count":23,"raw_metadata":null,"created_at":"2026-07-19T02:05:10.907983Z","pmid":"38375996","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":[]}