Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2073660448', 'doi': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'title': 'Echocardiographic detection of ischemic and infarcted myocardium', 'display_name': 'Echocardiographic detection of ischemic and infarcted myocardium', 'publication_year': 1984, 'publication_date': '1984-03-01', 'ids': {'openalex': 'https://openalex.org/W2073660448', 'doi': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'mag': '2073660448', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/6693645'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S60865174', 'display_name': 'Journal of the American College of Cardiology', 'issn_l': '0735-1097', 'issn': ['0735-1097', '1558-3597'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5105891619', 'display_name': 'Susan Rasmussen', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210110049', 'display_name': 'Richard L. Roudebush VA Medical Center', 'ror': 'https://ror.org/01zpmbk67', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210110049', 'https://openalex.org/I4210127612']}, {'id': 'https://openalex.org/I55769427', 'display_name': 'Indiana University – Purdue University Indianapolis', 'ror': 'https://ror.org/05gxnyn08', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55769427', 'https://openalex.org/I592451']}, {'id': 'https://openalex.org/I4210106489', 'display_name': 'National Heart Lung and Blood Institute', 'ror': 'https://ror.org/012pb6c26', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238', 'https://openalex.org/I4210106489']}, {'id': 'https://openalex.org/I1299303238', 'display_name': 'National Institutes of Health', 'ror': 'https://ror.org/01cwqze88', 'country_code': 'US', 'type': 'government', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238']}, {'id': 'https://openalex.org/I1281833243', 'display_name': 'American Heart Association', 'ror': 'https://ror.org/013kjyp64', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1281833243']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Susan Rasmussen', 'raw_affiliation_strings': ['Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.'], 'affiliations': [{'raw_affiliation_string': 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'institution_ids': ['https://openalex.org/I4210110049', 'https://openalex.org/I55769427']}, {'raw_affiliation_string': 'Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238']}, {'raw_affiliation_string': 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.', 'institution_ids': ['https://openalex.org/I1281833243']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5030251824', 'display_name': 'D.Eugene Lovelace', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210106489', 'display_name': 'National Heart Lung and Blood Institute', 'ror': 'https://ror.org/012pb6c26', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238', 'https://openalex.org/I4210106489']}, {'id': 'https://openalex.org/I1299303238', 'display_name': 'National Institutes of Health', 'ror': 'https://ror.org/01cwqze88', 'country_code': 'US', 'type': 'government', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238']}, {'id': 'https://openalex.org/I1281833243', 'display_name': 'American Heart Association', 'ror': 'https://ror.org/013kjyp64', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1281833243']}, {'id': 'https://openalex.org/I4210110049', 'display_name': 'Richard L. Roudebush VA Medical Center', 'ror': 'https://ror.org/01zpmbk67', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210110049', 'https://openalex.org/I4210127612']}, {'id': 'https://openalex.org/I55769427', 'display_name': 'Indiana University – Purdue University Indianapolis', 'ror': 'https://ror.org/05gxnyn08', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55769427', 'https://openalex.org/I592451']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'D. Eugene Lovelace', 'raw_affiliation_strings': ['Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.'], 'affiliations': [{'raw_affiliation_string': 'Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238']}, {'raw_affiliation_string': 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.', 'institution_ids': ['https://openalex.org/I1281833243']}, {'raw_affiliation_string': 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'institution_ids': ['https://openalex.org/I4210110049', 'https://openalex.org/I55769427']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5039675034', 'display_name': 'Suzanne B. Knoebel', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210106489', 'display_name': 'National Heart Lung and Blood Institute', 'ror': 'https://ror.org/012pb6c26', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238', 'https://openalex.org/I4210106489']}, {'id': 'https://openalex.org/I1299303238', 'display_name': 'National Institutes of Health', 'ror': 'https://ror.org/01cwqze88', 'country_code': 'US', 'type': 'government', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238']}, {'id': 'https://openalex.org/I1281833243', 'display_name': 'American Heart Association', 'ror': 'https://ror.org/013kjyp64', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1281833243']}, {'id': 'https://openalex.org/I4210110049', 'display_name': 'Richard L. Roudebush VA Medical Center', 'ror': 'https://ror.org/01zpmbk67', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210110049', 'https://openalex.org/I4210127612']}, {'id': 'https://openalex.org/I55769427', 'display_name': 'Indiana University – Purdue University Indianapolis', 'ror': 'https://ror.org/05gxnyn08', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55769427', 'https://openalex.org/I592451']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Suzanne B. Knoebel', 'raw_affiliation_strings': ['Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.'], 'affiliations': [{'raw_affiliation_string': 'Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238']}, {'raw_affiliation_string': 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.', 'institution_ids': ['https://openalex.org/I1281833243']}, {'raw_affiliation_string': 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'institution_ids': ['https://openalex.org/I4210110049', 'https://openalex.org/I55769427']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5000007047', 'display_name': 'Robert C. Ransburg', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210106489', 'display_name': 'National Heart Lung and Blood Institute', 'ror': 'https://ror.org/012pb6c26', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238', 'https://openalex.org/I4210106489']}, {'id': 'https://openalex.org/I1299303238', 'display_name': 'National Institutes of Health', 'ror': 'https://ror.org/01cwqze88', 'country_code': 'US', 'type': 'government', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238']}, {'id': 'https://openalex.org/I1281833243', 'display_name': 'American Heart Association', 'ror': 'https://ror.org/013kjyp64', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1281833243']}, {'id': 'https://openalex.org/I4210110049', 'display_name': 'Richard L. Roudebush VA Medical Center', 'ror': 'https://ror.org/01zpmbk67', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210110049', 'https://openalex.org/I4210127612']}, {'id': 'https://openalex.org/I55769427', 'display_name': 'Indiana University – Purdue University Indianapolis', 'ror': 'https://ror.org/05gxnyn08', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55769427', 'https://openalex.org/I592451']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Robert Ransburg', 'raw_affiliation_strings': ['Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.'], 'affiliations': [{'raw_affiliation_string': 'Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238']}, {'raw_affiliation_string': 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.', 'institution_ids': ['https://openalex.org/I1281833243']}, {'raw_affiliation_string': 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'institution_ids': ['https://openalex.org/I4210110049', 'https://openalex.org/I55769427']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5057570709', 'display_name': 'Betty C. Corya', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210106489', 'display_name': 'National Heart Lung and Blood Institute', 'ror': 'https://ror.org/012pb6c26', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238', 'https://openalex.org/I4210106489']}, {'id': 'https://openalex.org/I1299303238', 'display_name': 'National Institutes of Health', 'ror': 'https://ror.org/01cwqze88', 'country_code': 'US', 'type': 'government', 'lineage': ['https://openalex.org/I1299022934', 'https://openalex.org/I1299303238']}, {'id': 'https://openalex.org/I1281833243', 'display_name': 'American Heart Association', 'ror': 'https://ror.org/013kjyp64', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1281833243']}, {'id': 'https://openalex.org/I4210110049', 'display_name': 'Richard L. Roudebush VA Medical Center', 'ror': 'https://ror.org/01zpmbk67', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210110049', 'https://openalex.org/I4210127612']}, {'id': 'https://openalex.org/I55769427', 'display_name': 'Indiana University – Purdue University Indianapolis', 'ror': 'https://ror.org/05gxnyn08', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55769427', 'https://openalex.org/I592451']}], 'countries': ['US'], 'is_corresponding': True, 'raw_author_name': 'Betty C. Corya', 'raw_affiliation_strings': ['Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.'], 'affiliations': [{'raw_affiliation_string': 'Grants HL-06308 and HL-07182 from the National Heart, Lung, and Blood Institute, National Institutes of Health, Betbesda, Maryland', 'institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238']}, {'raw_affiliation_string': 'the American Heart Association, Indiana Affiliate, and the Veterans Administration, Indianapolis.', 'institution_ids': ['https://openalex.org/I1281833243']}, {'raw_affiliation_string': 'Krannert Institute of Cardiology, Department of Medicine, Indiana University School of Medicine, and the Richard L. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, This study was supported in part by the Herman C. Krannert Fund, Indianapolis, Indiana', 'institution_ids': ['https://openalex.org/I4210110049', 'https://openalex.org/I55769427']}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 5, 'corresponding_author_ids': ['https://openalex.org/A5057570709'], 'corresponding_institution_ids': ['https://openalex.org/I4210106489', 'https://openalex.org/I1299303238', 'https://openalex.org/I1281833243', 'https://openalex.org/I4210110049', 'https://openalex.org/I55769427'], 'apc_list': {'value': 6500, 'currency': 'USD', 'value_usd': 6500, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 10.294, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 47, 'citation_normalized_percentile': {'value': 0.849, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '3', 'issue': '3', 'first_page': '733', 'last_page': '743'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12015', 'display_name': 'Advances in Photoacoustic Imaging and Tomography', 'score': 0.9941, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12015', 'display_name': 'Advances in Photoacoustic Imaging and Tomography', 'score': 0.9941, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10958', 'display_name': 'Focused Ultrasound Technology and Applications', 'score': 0.9923, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10727', 'display_name': 'Advances in Ultrasound Elastography Imaging Techniques', 'score': 0.9917, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/coronary-occlusion', 'display_name': 'Coronary occlusion', 'score': 0.80482215}, {'id': 'https://openalex.org/keywords/in-vivo-imaging', 'display_name': 'In Vivo Imaging', 'score': 0.52831}, {'id': 'https://openalex.org/keywords/tissue-elasticity-mapping', 'display_name': 'Tissue Elasticity Mapping', 'score': 0.515173}, {'id': 'https://openalex.org/keywords/focused-ultrasound', 'display_name': 'Focused Ultrasound', 'score': 0.509304}], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.9053472}, {'id': 'https://openalex.org/C2776268601', 'wikidata': 'https://www.wikidata.org/wiki/Q968808', 'display_name': 'Occlusion', 'level': 2, 'score': 0.82746184}, {'id': 'https://openalex.org/C2780393670', 'wikidata': 'https://www.wikidata.org/wiki/Q5172192', 'display_name': 'Coronary occlusion', 'level': 3, 'score': 0.80482215}, {'id': 'https://openalex.org/C80093799', 'wikidata': 'https://www.wikidata.org/wiki/Q366155', 'display_name': 'Intracardiac injection', 'level': 2, 'score': 0.7102832}, {'id': 'https://openalex.org/C164705383', 'wikidata': 'https://www.wikidata.org/wiki/Q10379', 'display_name': 'Cardiology', 'level': 1, 'score': 0.58070135}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.5422114}, {'id': 'https://openalex.org/C541997718', 'wikidata': 'https://www.wikidata.org/wiki/Q188151', 'display_name': 'Ischemia', 'level': 2, 'score': 0.44541505}], 'mesh': [{'descriptor_ui': 'D003327', 'descriptor_name': 'Coronary Disease', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D004452', 'descriptor_name': 'Echocardiography', 'qualifier_ui': 'Q000379', 'qualifier_name': 'methods', 'is_major_topic': True}, {'descriptor_ui': 'D009203', 'descriptor_name': 'Myocardial Infarction', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003201', 'descriptor_name': 'Computers', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003326', 'descriptor_name': 'Coronary Circulation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003327', 'descriptor_name': 'Coronary Disease', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004285', 'descriptor_name': 'Dogs', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004452', 'descriptor_name': 'Echocardiography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005069', 'descriptor_name': 'Evaluation Studies as Topic', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008433', 'descriptor_name': 'Mathematics', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009203', 'descriptor_name': 'Myocardial Infarction', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009206', 'descriptor_name': 'Myocardium', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009206', 'descriptor_name': 'Myocardium', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S60865174', 'display_name': 'Journal of the American College of Cardiology', 'issn_l': '0735-1097', 'issn': ['0735-1097', '1558-3597'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/6693645', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0735-1097(84)80249-1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S60865174', 'display_name': 'Journal of the American College of Cardiology', 'issn_l': '0735-1097', 'issn': ['0735-1097', '1558-3597'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'display_name': 'Good health and well-being', 'id': 'https://metadata.un.org/sdg/3', 'score': 0.51}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 9, 'referenced_works': ['https://openalex.org/W1965477939', 'https://openalex.org/W1987094734', 'https://openalex.org/W2026586395', 'https://openalex.org/W2046766380', 'https://openalex.org/W2050175937', 'https://openalex.org/W2052226225', 'https://openalex.org/W2061607789', 'https://openalex.org/W2082731954', 'https://openalex.org/W2106338663'], 'related_works': ['https://openalex.org/W3144356033', 'https://openalex.org/W2183457527', 'https://openalex.org/W2132501076', 'https://openalex.org/W2088940818', 'https://openalex.org/W2073660448', 'https://openalex.org/W2055325115', 'https://openalex.org/W2017807462', 'https://openalex.org/W1997783991', 'https://openalex.org/W1968405842', 'https://openalex.org/W1966907102'], 'abstract_inverted_index': {'The': [0, 161, 210], 'purpose': [1], 'of': [2, 10, 31, 99, 104, 126, 134, 173, 228], 'this': [3, 167], 'study': [4, 168], 'was': [5, 92, 143, 185], 'to': [6, 190, 257], 'determine': [7], 'the': [8, 28, 118, 135, 155, 203, 238, 243], 'potential': [9], 'a': [11, 21, 85, 253], 'clinically': [12, 254], 'adaptable': [13, 255], 'two-dimensional': [14, 39, 181], 'echocardiographic': [15, 244], 'system': [16, 250], 'using': [17], 'computer': [18, 162, 248], 'enhancement': [19, 163], 'and': [20, 33, 88, 96, 110, 115, 194, 231, 241, 247, 259], 'mathematically': [22], 'defined': [23], 'integrated': [24, 75], 'backscatter': [25, 76, 136, 141, 218], 'ratio': [26, 142], 'for': [27], 'early': [29], 'detection': [30], 'ischemic': [32], 'infarcted': [34], 'myocardium.': [35], 'Fifteen': [36], 'dogs': [37], 'had': [38], 'echocardiograms': [40, 205], 'recorded': [41], 'during': [42, 154], 'either': [43], 'open': [44], 'chest': [45, 52], 'coronary': [46, 66, 229], 'occlusion': [47, 53, 57, 67, 101, 127, 149, 159, 230], '(n': [48, 54, 61, 68], '=': [49, 55, 62, 69], '5),': [50, 56], 'closed': [51], 'followed': [58], 'by': [59, 179], 'reperfusion': [60], '3)': [63], 'or': [64, 153], 'sham': [65, 158], '2).': [70], 'A': [71], 'serial': [72], 'increase': [73, 139], 'in': [74, 80, 102, 117, 128, 132, 140, 166, 187, 217, 237, 263], 'ratio,': [77], 'representing': [78], 'differences': [79], 'returned': [81], 'ultrasound': [82], 'intensities': [83], 'between': [84, 94], 'reference': [86], 'point': [87], 'specific': [89], 'myocardial': [90, 183, 261], 'regions,': [91], 'detected': [93, 145], '7': [95], '12': [97, 105, 226], 'minutes': [98, 112, 125, 227], 'complete': [100], '9': [103], 'animals': [106], '(p': [107], '<': [108], '0.05),': [109], 'at': [111], '18,': [113], '43': [114], '67': [116], 'remaining': [119], '3': [120], 'animals.': [121], 'Reperfusion': [122], 'after': [123], '20': [124], 'two': [129], 'studies': [130], 'resulted': [131], 'normalization': [133], 'ratio.': [137], 'An': [138], 'not': [144], 'when': [146], '5': [147, 156], 'minute': [148], 'periods': [150], 'were': [151, 206], 'used': [152], 'hour': [157], 'studies.': [160], 'techniques': [164], 'utilized': [165, 251], 'provided': [169, 178], 'increased': [170], 'visual': [171], 'detail': [172], 'intracardiac': [174], 'structures': [175], 'over': [176], 'that': [177, 196], 'routine': [180, 204], 'echocardiograms;': [182], 'tissue': [184], 'identifiable': [186, 207], 'what': [188], 'appeared': [189, 197], 'be': [191, 235], 'echo-free': [192], 'segments;': [193], 'boundaries': [195], 'as': [198, 208], 'noncontiguous': [199], 'horizontal': [200], 'lines': [201], 'on': [202], 'trabeculae.': [209], 'results': [211], 'indicate': [212], 'that:': [213], '1)': [214], 'significant': [215], 'increases': [216], 'from': [219], 'nonperfused': [220], 'myocardium': [221], 'are': [222], 'detectable': [223], 'echocardiographically': [224], 'within': [225], 'temporal': [232], 'changes': [233], 'can': [234], 'assessed': [236], 'canine': [239], 'model,': [240], '2)': [242], 'data': [245], 'acquisition': [246], 'analysis': [249], 'provide': [252], 'approach': [256], 'identify': [258], 'map': [260], 'characteristics': [262], 'human': [264], 'beings.': [265]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2073660448', 'counts_by_year': [], 'updated_date': '2024-09-13T10:12:49.591451', 'created_date': '2016-06-24'}