{"doi":"10.1016/j.pacs.2023.100520","title":"A method for the geometric calibration of ultrasound transducer arrays with arbitrary geometries","abstract":"Geometric calibration of ultrasound transducer arrays is critical to optimizing the performance of photoacoustic computed tomography (PACT) systems. We present a geometric calibration method that is applicable to a wide range of PACT systems. We obtain the speed of sound and point source locations using surrogate methods, which results in a linear problem in the transducer coordinates. We characterize the estimation error, which informs our choice of the point source arrangement. We demonstrate our method in a three-dimensional PACT system and show that our method improves the contrast-to-noise ratio, the size, and the spread of point source reconstructions by 80±19%, 19±3%, and 7±1%, respectively. We reconstruct the images of a healthy human breast before and after calibration and find that the calibrated image reveals vasculatures that were previously invisible. Our work introduces a method for geometric calibration in PACT and paves the way for improving PACT image quality.","journal":"Photoacoustics","year":2023,"id":353897,"datarank":0.31191623125197543,"base_score":2.0794415416798357,"endowment":2.0794415416798357,"self_citation_contribution":0.31191623125197543,"citation_network_contribution":0.0,"self_endowment_contribution":0.31191623125197543,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":7,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9557,"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":1100563,"name":"Yang Zhang","orcid":"0000-0003-0290-7821","position":1,"is_corresponding":false},{"id":345459,"name":"Peng Hu","orcid":"0000-0002-2933-1239","position":2,"is_corresponding":false},{"id":668181,"name":"Yilin Luo","orcid":"0000-0002-4611-3049","position":3,"is_corresponding":false},{"id":623767,"name":"Xin Tong","orcid":"0009-0008-6494-5587","position":4,"is_corresponding":false},{"id":326585,"name":"Shuai Na","orcid":"0000-0003-2083-0047","position":5,"is_corresponding":false},{"id":253575,"name":"Lihong V. Wang","orcid":"0000-0001-9783-4383","position":6,"is_corresponding":false},{"id":1100996,"name":"Karteekeya Sastry","orcid":null,"position":0,"is_corresponding":true}],"reference_count":35,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-07-19T01:13:02.680107Z","pmid":"37425221","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":[]}