{"doi":"10.17615/028e-r481","title":"Combined R2* and Diffusion Tensor Imaging Changes in the Substantia Nigra in Parkinson's Disease","abstract":"Recent magnetic resonance imaging (MRI) studies suggest increased transverse relaxation rate (R2*) and reduced diffusion tensor imaging (DTI) fractional anisotropy (FA) values in the SN in PD. The R2* and FA changes may reflect different aspects of PD-related pathological processes (i.e., tissue iron deposition and microstructure disorganization). This study investigated the combined changes of R2* and FA in the SN in PD.","journal":"UNC Libraries","year":2020,"id":110807,"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":6,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9538,"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":420841,"name":"Michele L. Shaffer","orcid":"0000-0003-2959-110X","position":1,"is_corresponding":false},{"id":415962,"name":"Qing Yang","orcid":"0000-0003-1170-3978","position":2,"is_corresponding":false},{"id":268532,"name":"Xuemei Huang","orcid":"0000-0003-3583-5502","position":3,"is_corresponding":false},{"id":512344,"name":"Suman Sen","orcid":"0000-0001-5659-8679","position":4,"is_corresponding":false},{"id":266786,"name":"Martin Styner","orcid":"0000-0002-8747-5118","position":5,"is_corresponding":false},{"id":267446,"name":"Guangwei Du","orcid":"0000-0003-4193-6975","position":6,"is_corresponding":false},{"id":268526,"name":"Mechelle M. Lewis","orcid":"0000-0002-1375-689X","position":0,"is_corresponding":true}],"reference_count":0,"raw_metadata":null,"created_at":"2026-07-18T23:13:01.914939Z","pmid":null,"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":[]}