Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1969031584', 'doi': 'https://doi.org/10.1016/s1071-3581(05)80044-3', 'title': 'Attenuation compensation for cardiac single-photon emission computed tomographic imaging: Part 1. Impact of attenuation and methods of estimating attenuation maps', 'display_name': 'Attenuation compensation for cardiac single-photon emission computed tomographic imaging: Part 1. Impact of attenuation and methods of estimating attenuation maps', 'publication_year': 1995, 'publication_date': '1995-11-01', 'ids': {'openalex': 'https://openalex.org/W1969031584', 'doi': 'https://doi.org/10.1016/s1071-3581(05)80044-3', 'mag': '1969031584', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/9420834'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s1071-3581(05)80044-3', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S40505786', 'display_name': 'Journal of Nuclear Cardiology', 'issn_l': '1071-3581', 'issn': ['1071-3581', '1532-6551'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'review', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5075447974', 'display_name': 'Michael A. King', 'orcid': 'https://orcid.org/0000-0001-8347-9851'}, 'institutions': [{'id': 'https://openalex.org/I166722992', 'display_name': 'University of Massachusetts Chan Medical School', 'ror': 'https://ror.org/0464eyp60', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I166722992']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Michael A. King', 'raw_affiliation_strings': ['Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA', 'institution_ids': ['https://openalex.org/I166722992']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5034237477', 'display_name': 'B.M.W. Tsui', 'orcid': 'https://orcid.org/0000-0001-7928-5093'}, 'institutions': [{'id': 'https://openalex.org/I166722992', 'display_name': 'University of Massachusetts Chan Medical School', 'ror': 'https://ror.org/0464eyp60', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I166722992']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Benjamin M.W. Tsui', 'raw_affiliation_strings': ['Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA', 'institution_ids': ['https://openalex.org/I166722992']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5111892985', 'display_name': 'Tin-Su Pan', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I166722992', 'display_name': 'University of Massachusetts Chan Medical School', 'ror': 'https://ror.org/0464eyp60', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I166722992']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Tin-Su Pan', 'raw_affiliation_strings': ['Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine, The University of Massachusetts Medical Center, 55 Lake Ave. North, 01655, Worcester, MA', 'institution_ids': ['https://openalex.org/I166722992']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3190, 'currency': 'EUR', 'value_usd': 4190, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 3.063, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 156, 'citation_normalized_percentile': {'value': 0.901384, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '2', 'issue': '6', 'first_page': '513', 'last_page': '524'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10522', 'display_name': 'Medical Imaging Techniques and Applications', 'score': 1.0, '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'}}, 'topics': [{'id': 'https://openalex.org/T10522', 'display_name': 'Medical Imaging Techniques and Applications', 'score': 1.0, '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'}}, {'id': 'https://openalex.org/T12386', 'display_name': 'Advanced X-ray and CT Imaging', 'score': 0.9997, '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/T10844', 'display_name': 'Radiation Dose and Imaging', 'score': 0.9996, '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/correction-for-attenuation', 'display_name': 'Correction for attenuation', 'score': 0.8864326}, {'id': 'https://openalex.org/keywords/tomographic-reconstruction', 'display_name': 'Tomographic reconstruction', 'score': 0.4313016}, {'id': 'https://openalex.org/keywords/emission-computed-tomography', 'display_name': 'Emission computed tomography', 'score': 0.41467014}], 'concepts': [{'id': 'https://openalex.org/C184652730', 'wikidata': 'https://www.wikidata.org/wiki/Q2357982', 'display_name': 'Attenuation', 'level': 2, 'score': 0.9531584}, {'id': 'https://openalex.org/C123688308', 'wikidata': 'https://www.wikidata.org/wiki/Q7309537', 'display_name': 'Correction for attenuation', 'level': 3, 'score': 0.8864326}, {'id': 'https://openalex.org/C2780441642', 'wikidata': 'https://www.wikidata.org/wiki/Q849737', 'display_name': 'Single-photon emission computed tomography', 'level': 2, 'score': 0.5848226}, {'id': 'https://openalex.org/C159774933', 'wikidata': 'https://www.wikidata.org/wiki/Q902086', 'display_name': 'Attenuation coefficient', 'level': 2, 'score': 0.5307614}, {'id': 'https://openalex.org/C761482', 'wikidata': 'https://www.wikidata.org/wiki/Q118093', 'display_name': 'Transmission (telecommunications)', 'level': 2, 'score': 0.529314}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.49978757}, {'id': 'https://openalex.org/C97742081', 'wikidata': 'https://www.wikidata.org/wiki/Q7820109', 'display_name': 'Tomographic reconstruction', 'level': 3, 'score': 0.4313016}, {'id': 'https://openalex.org/C2778064278', 'wikidata': 'https://www.wikidata.org/wiki/Q5372630', 'display_name': 'Emission computed tomography', 'level': 3, 'score': 0.41467014}, {'id': 'https://openalex.org/C120665830', 'wikidata': 'https://www.wikidata.org/wiki/Q14620', 'display_name': 'Optics', 'level': 1, 'score': 0.39620802}, {'id': 'https://openalex.org/C2989005', 'wikidata': 'https://www.wikidata.org/wiki/Q214963', 'display_name': 'Nuclear medicine', 'level': 1, 'score': 0.3791099}, {'id': 'https://openalex.org/C19527891', 'wikidata': 'https://www.wikidata.org/wiki/Q1120908', 'display_name': 'Medical physics', 'level': 1, 'score': 0.34937078}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.29734862}, {'id': 'https://openalex.org/C141379421', 'wikidata': 'https://www.wikidata.org/wiki/Q6094427', 'display_name': 'Iterative reconstruction', 'level': 2, 'score': 0.29463977}, {'id': 'https://openalex.org/C126838900', 'wikidata': 'https://www.wikidata.org/wiki/Q77604', 'display_name': 'Radiology', 'level': 1, 'score': 0.21361274}, {'id': 'https://openalex.org/C2775842073', 'wikidata': 'https://www.wikidata.org/wiki/Q208376', 'display_name': 'Positron emission tomography', 'level': 2, 'score': 0.20444378}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.17939755}, {'id': 'https://openalex.org/C76155785', 'wikidata': 'https://www.wikidata.org/wiki/Q418', 'display_name': 'Telecommunications', 'level': 1, 'score': 0.08719745}], 'mesh': [{'descriptor_ui': 'D006321', 'descriptor_name': 'Heart', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': True}, {'descriptor_ui': 'D015899', 'descriptor_name': 'Tomography, Emission-Computed, Single-Photon', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D016477', 'descriptor_name': 'Artifacts', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006321', 'descriptor_name': 'Heart', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012542', 'descriptor_name': 'Scattering, Radiation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s1071-3581(05)80044-3', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S40505786', 'display_name': 'Journal of Nuclear Cardiology', 'issn_l': '1071-3581', 'issn': ['1071-3581', '1532-6551'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/9420834', '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': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 64, 'referenced_works': ['https://openalex.org/W1504604090', 'https://openalex.org/W1552659754', 'https://openalex.org/W1574421269', 'https://openalex.org/W1606049780', 'https://openalex.org/W1794357749', 'https://openalex.org/W1831623077', 'https://openalex.org/W1835715234', 'https://openalex.org/W1911001874', 'https://openalex.org/W1966307499', 'https://openalex.org/W1967060673', 'https://openalex.org/W1968776260', 'https://openalex.org/W1970969556', 'https://openalex.org/W1984705540', 'https://openalex.org/W2001894591', 'https://openalex.org/W2002863184', 'https://openalex.org/W2012241073', 'https://openalex.org/W2014733013', 'https://openalex.org/W2023306242', 'https://openalex.org/W2025433857', 'https://openalex.org/W2035145781', 'https://openalex.org/W2035394986', 'https://openalex.org/W2040871919', 'https://openalex.org/W2041284690', 'https://openalex.org/W2044813020', 'https://openalex.org/W2046489474', 'https://openalex.org/W2046527082', 'https://openalex.org/W2052617206', 'https://openalex.org/W2089119935', 'https://openalex.org/W2107280430', 'https://openalex.org/W2109996686', 'https://openalex.org/W2111674222', 'https://openalex.org/W2113728609', 'https://openalex.org/W2118456291', 'https://openalex.org/W2118971630', 'https://openalex.org/W2121026119', 'https://openalex.org/W2125438570', 'https://openalex.org/W2127741753', 'https://openalex.org/W2128819409', 'https://openalex.org/W2130851234', 'https://openalex.org/W2135563573', 'https://openalex.org/W2136403771', 'https://openalex.org/W2136534847', 'https://openalex.org/W2148738701', 'https://openalex.org/W2152202336', 'https://openalex.org/W2155860703', 'https://openalex.org/W2156328584', 'https://openalex.org/W2159118660', 'https://openalex.org/W2159233905', 'https://openalex.org/W2160724338', 'https://openalex.org/W2166365825', 'https://openalex.org/W2168335807', 'https://openalex.org/W2169476025', 'https://openalex.org/W2172110585', 'https://openalex.org/W2183553377', 'https://openalex.org/W2186119769', 'https://openalex.org/W2246539805', 'https://openalex.org/W2288561377', 'https://openalex.org/W2312667081', 'https://openalex.org/W2317612139', 'https://openalex.org/W2345770136', 'https://openalex.org/W237226073', 'https://openalex.org/W2411608229', 'https://openalex.org/W284920901', 'https://openalex.org/W41510138'], 'related_works': ['https://openalex.org/W4229903143', 'https://openalex.org/W3191196697', 'https://openalex.org/W2523010270', 'https://openalex.org/W2407797925', 'https://openalex.org/W2075720151', 'https://openalex.org/W2068748575', 'https://openalex.org/W2003293154', 'https://openalex.org/W1973431082', 'https://openalex.org/W1966307499', 'https://openalex.org/W1523361089'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1969031584', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 2}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 2}, {'year': 2014, 'cited_by_count': 6}, {'year': 2013, 'cited_by_count': 6}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-12-12T20:12:52.268977', 'created_date': '2016-06-24'}