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The usefulness of low-dose CT scan in elderly patientswith suspected acute lower respiratory infection in the emergency room

Title
The usefulness of low-dose CT scan in elderly patientswith suspected acute lower respiratory infection in the emergency room
Authors
Park J.E.Kim Y.Lee S.W.Shim S.S.Lee J.K.Lee J.H.
Ewha Authors
김유경이진화이정경심성신
SCOPUS Author ID
김유경scopus; 이진화scopus; 이정경scopus; 심성신scopus
Issue Date
2016
Journal Title
British Journal of Radiology
ISSN
0007-1285JCR Link
Citation
vol. 89, no. 1060
Publisher
British Institute of Radiology
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Objective: To evaluate the usefulness of low-dose CT (LDCT) for the diagnosis of acute lower respiratory infection (ALRI) in elderly patients in the emergency room (ER). Methods: A total of 160 consecutive patients (mean age: 75.969.2 years; range: 60-97 years), who were diagnosed to have ALRI by LDCT in the ER, were enrolled in this study. Initial chest radiograph (CR) and CT patterns of ALRI were analysed, and clinical courses of patients were assessed. Results: 49 patients showed negative CR, in whom the main CT patterns were diffuse bronchial wall thickening (n523), ground-glass opacity (n56), mixed centrilobular nodules and ground-glass opacity (n53), small consolidation (n58) or consolidation in the dependent lung (n59), while the other 111 patients with the main CT pattern of consolidation demonstrated pulmonary abnormality on CR. Pulmonary oedema (12.5%) and pleural effusion (23.1%) were associated. The rate of hospitalization, care in the intensive care unit, mortality and comorbidity were significantly higher in the CR(1)LDCT(1) group (88.3%, 36.1%, 18.2% and 59.5%) than in the CR(2)LDCT(1) group (55.1%, 8.2%, 2.0% and 38.8%; p#0.05). Conclusion: LDCT was useful for the early diagnosis of ALRI in elderly patients who showed negative initial CR. The patients with negative initial CR had main CT patterns of diffuse bronchial wall thickening, ground-glass opacity, centrilobular nodules, small consolidation or consolidation in the dependent lung on LDCT. © 2016 The Authors.
DOI
10.1259/bjr.20150654
Appears in Collections:
의과대학 > 의학과 > Journal papers
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