Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2156266982', 'doi': 'https://doi.org/10.1148/radiol.2353040086', 'title': 'US Features of the Normal Appendix and Surrounding Area in Children', 'display_name': 'US Features of the Normal Appendix and Surrounding Area in Children', 'publication_year': 2005, 'publication_date': '2005-06-01', 'ids': {'openalex': 'https://openalex.org/W2156266982', 'doi': 'https://doi.org/10.1148/radiol.2353040086', 'mag': '2156266982', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/15914481'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1148/radiol.2353040086', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50280174', 'display_name': 'Radiology', 'issn_l': '0033-8419', 'issn': ['0033-8419', '1527-1315'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315931', 'host_organization_name': 'Radiological Society of North America', 'host_organization_lineage': ['https://openalex.org/P4310315931'], 'host_organization_lineage_names': ['Radiological Society of North America'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', '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/A5029252021', 'display_name': 'Fraukje Wiersma', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210145471', 'display_name': 'Juliana Kinderziekenhuis', 'ror': 'https://ror.org/047b5av97', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210145471']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Fraukje Wiersma', 'raw_affiliation_strings': ["Department of Radiology, Juliana Children's Hospital, Sportlaan 600, the Hague, The Netherlands. [email protected]"], 'affiliations': [{'raw_affiliation_string': "Department of Radiology, Juliana Children's Hospital, Sportlaan 600, the Hague, The Netherlands. [email protected]", 'institution_ids': ['https://openalex.org/I4210145471']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5107561288', 'display_name': 'Alexandr Šràmek', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Alexandr Srámek', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5090698516', 'display_name': 'Herma C. Holscher', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Herma C Holscher', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 4.726, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 79, 'citation_normalized_percentile': {'value': 0.969811, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 95, 'max': 96}, 'biblio': {'volume': '235', 'issue': '3', 'first_page': '1018', 'last_page': '1022'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11473', 'display_name': 'Appendicitis Diagnosis and Management', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2711', 'display_name': 'Emergency Medicine'}, '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/T11473', 'display_name': 'Appendicitis Diagnosis and Management', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2711', 'display_name': 'Emergency Medicine'}, '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/T12064', 'display_name': 'Intraperitoneal and Appendiceal Malignancies', 'score': 0.9956, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/T12150', 'display_name': 'Intestinal Malrotation and Obstruction Disorders', 'score': 0.99, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/lumen', 'display_name': 'Lumen (anatomy)', 'score': 0.53333265}], 'concepts': [{'id': 'https://openalex.org/C2776364125', 'wikidata': 'https://www.wikidata.org/wiki/Q9656', 'display_name': 'Appendix', 'level': 2, 'score': 0.9197855}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.90311545}, {'id': 'https://openalex.org/C2780016130', 'wikidata': 'https://www.wikidata.org/wiki/Q121041', 'display_name': 'Appendicitis', 'level': 2, 'score': 0.58906966}, {'id': 'https://openalex.org/C131631996', 'wikidata': 'https://www.wikidata.org/wiki/Q1141325', 'display_name': 'Lumen (anatomy)', 'level': 2, 'score': 0.53333265}, {'id': 'https://openalex.org/C12868164', 'wikidata': 'https://www.wikidata.org/wiki/Q1424533', 'display_name': 'Mann–Whitney U test', 'level': 2, 'score': 0.43500713}, {'id': 'https://openalex.org/C2780955771', 'wikidata': 'https://www.wikidata.org/wiki/Q183425', 'display_name': 'Abdominal pain', 'level': 2, 'score': 0.43490094}, {'id': 'https://openalex.org/C2779983558', 'wikidata': 'https://www.wikidata.org/wiki/Q9597', 'display_name': 'Abdomen', 'level': 2, 'score': 0.43398428}, {'id': 'https://openalex.org/C2989005', 'wikidata': 'https://www.wikidata.org/wiki/Q214963', 'display_name': 'Nuclear medicine', 'level': 1, 'score': 0.39185765}, {'id': 'https://openalex.org/C126838900', 'wikidata': 'https://www.wikidata.org/wiki/Q77604', 'display_name': 'Radiology', 'level': 1, 'score': 0.3543253}, {'id': 'https://openalex.org/C141071460', 'wikidata': 'https://www.wikidata.org/wiki/Q40821', 'display_name': 'Surgery', 'level': 1, 'score': 0.2730028}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.14261162}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D001065', 'descriptor_name': 'Appendix', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': True}, {'descriptor_ui': 'D000293', 'descriptor_name': 'Adolescent', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001065', 'descriptor_name': 'Appendix', 'qualifier_ui': 'Q000033', 'qualifier_name': 'anatomy & histology', 'is_major_topic': False}, {'descriptor_ui': 'D001065', 'descriptor_name': 'Appendix', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002648', 'descriptor_name': 'Child', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002675', 'descriptor_name': 'Child, Preschool', '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': 'D006801', 'descriptor_name': 'Humans', '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': 'D011446', 'descriptor_name': 'Prospective Studies', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012016', 'descriptor_name': 'Reference Values', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D014463', 'descriptor_name': 'Ultrasonography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1148/radiol.2353040086', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50280174', 'display_name': 'Radiology', 'issn_l': '0033-8419', 'issn': ['0033-8419', '1527-1315'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315931', 'host_organization_name': 'Radiological Society of North America', 'host_organization_lineage': ['https://openalex.org/P4310315931'], 'host_organization_lineage_names': ['Radiological Society of North America'], '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/15914481', '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': 13, 'referenced_works': ['https://openalex.org/W1504544212', 'https://openalex.org/W1506898165', 'https://openalex.org/W1976845424', 'https://openalex.org/W2023329924', 'https://openalex.org/W2050824912', 'https://openalex.org/W2079536420', 'https://openalex.org/W2084803098', 'https://openalex.org/W2085758928', 'https://openalex.org/W2094281925', 'https://openalex.org/W2131207638', 'https://openalex.org/W2155683105', 'https://openalex.org/W2167434618', 'https://openalex.org/W2169451849'], 'related_works': ['https://openalex.org/W4365810995', 'https://openalex.org/W4255227774', 'https://openalex.org/W3147008349', 'https://openalex.org/W3033523014', 'https://openalex.org/W2930586572', 'https://openalex.org/W2804126471', 'https://openalex.org/W2345698288', 'https://openalex.org/W2114168429', 'https://openalex.org/W2050993296', 'https://openalex.org/W1979941066'], 'abstract_inverted_index': {'To': [0], 'evaluate': [1, 23], 'prospectively': [2], 'the': [3, 11, 24, 28, 75, 92, 103, 115, 120, 135, 153, 156, 173, 182, 215, 223, 228, 235, 241, 245, 251], 'frequency': [4], 'of': [5, 10, 18, 27, 55, 91, 102, 114, 152, 172, 214, 227, 240, 250, 254, 269], 'depiction': [6], 'with': [7, 60, 63, 68, 139, 205, 265], 'ultrasonography': [8], '(US)': [9], 'appendix': [12, 93, 104, 136, 174, 261], 'in': [13, 141, 197, 222, 267], 'children': [14], 'without': [15, 52], 'clinical': [16, 53], 'suspicion': [17, 54], 'acute': [19, 56, 69], 'appendicitis': [20, 57], 'and': [21, 33, 41, 66, 81, 89, 99, 126, 181, 244], 'to': [22, 109], 'US': [25, 266], 'appearance': [26], 'normal': [29, 260], 'appendix.Between': [30], 'March': [31], '2003': [32], 'July': [34], '2003,': [35], '146': [36, 216], 'consecutive': [37], 'patients': [38], '(62': [39], 'boys': [40], '84': [42], 'girls;': [43], 'mean': [44, 183], 'age,': [45, 110, 236], '7': [46], 'years;': [47], 'age': [48], 'range,': [49], '2-15': [50], 'years)': [51], 'were': [58, 72, 85, 94, 105, 130, 168, 203, 220], 'examined': [59, 106, 242], 'US.': [61], 'Patients': [62], 'cystic': [64], 'fibrosis': [65], 'those': [67], 'abdominal': [70], 'pain': [71], 'excluded': [73], 'from': [74], 'study.': [76], 'Outer': [77], 'diameters,': [78], 'mural': [79, 100, 184], 'thickness,': [80], 'color': [82], 'Doppler': [83], 'flow': [84], 'measured.': [86], 'Appendiceal': [87], 'lumen': [88, 194], 'surroundings': [90], 'determined.': [95], 'The': [96, 192, 201], 'overall': [97, 246], 'diameter': [98, 171, 247], 'thickness': [101, 185], 'for': [107], 'relationship': [108], 'weight,': [111, 237], 'or': [112, 209, 238, 248], 'height': [113, 239], 'patient.': [116], 'For': [117], 'statistical': [118], 'analysis,': [119], 'Mann-Whitney': [121], 'test,': [122, 125], 'Student': [123], 't': [124], 'linear': [127], 'regression': [128], 'analysis': [129], 'applied.In': [131], '120': [132], '(82%)': [133], 'children,': [134, 144, 217], 'was': [137, 146, 158, 175, 186, 195], 'depicted': [138, 154, 264], 'US;': [140], '26': [142], '(18%)': [143], 'this': [145, 255], 'not': [147], 'possible.': [148], 'In': [149, 211], '114': [150], '(95%)': [151], 'appendices,': [155], 'position': [157], 'classical;': [159], 'we': [160], 'observed': [161], 'six': [162], '(5%)': [163], 'retrocecal': [164], 'appendices.': [165], 'All': [166], 'appendices': [167], 'compressible.': [169], 'Mean': [170], '0.39': [176], 'cm': [177, 188], '(range,': [178, 189], '0.21-0.64': [179], 'cm),': [180], '0.18': [187], '0.11-0.27': [190], 'cm).': [191], 'appendiceal': [193], 'empty': [196], '74': [198], '(62%)': [199], 'children.': [200, 271], 'others': [202], 'filled': [204], 'fecal': [206], 'material,': [207], 'gas,': [208], 'both.': [210], '75': [212], '(51%)': [213], 'lymph': [218], 'nodes': [219], 'present': [221], 'right': [224], 'lower': [225], 'quadrant': [226], 'abdomen.': [229], 'We': [230], 'found': [231], 'no': [232], 'relation': [233], 'between': [234], 'child': [243], 'wall': [249], 'appendix.The': [252], 'results': [253], 'study': [256], 'show': [257], 'that': [258], 'a': [259], 'can': [262], 'be': [263], '82%': [268], 'asymptomatic': [270]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2156266982', 'counts_by_year': [{'year': 2024, 'cited_by_count': 6}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 10}, {'year': 2013, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 5}], 'updated_date': '2025-01-09T21:02:12.937317', 'created_date': '2016-06-24'}