Thin-Section CT of Severe Acute Respiratory Syndrome: Evaluation of 73 Patients Exposed to or with the Disease
- 1 August 2003
- journal article
- Published by Radiological Society of North America (RSNA) in Radiology
- Vol. 228 (2), 395-400
- https://doi.org/10.1148/radiol.2283030541
Abstract
PURPOSE: To retrospectively analyze the thin-section computed tomographic (CT) features in patients with severe acute respiratory syndrome (SARS) at the authors’ institution. MATERIALS AND METHODS: From March 11, 2003, to April 2, 2003, 74 patients with symptoms and signs suggestive of SARS underwent CT of the thorax; all underwent thin-section CT except for one patient who underwent conventional CT. Group 1 (n = 23) patients had symptoms of SARS in keeping with criteria from the Centers for Disease Control and Prevention and a positive chest radiograph. Group 2 (n = 17) patients had a high clinical suspicion of SARS but a normal radiograph. Group 3 (n = 34) patients had minor symptoms and a normal chest radiograph. The thin-section CT images were analyzed for ground-glass opacification or consolidation, lesion size in each lung segment, peripheral or central location, interstitial thickening, and other abnormalities. RESULTS: Thin-section CT scans were abnormal only for patients in groups 1 and 2. The patient with only conventional CT scans was in group 3; scans for group 3 patients were normal. Affected segments were predominantly in the lower lobes (91 of 149 affected segments). Common findings included ground-glass opacification, sometimes with consolidation, and interlobular septal and intralobular interstitial thickening. The size of each lesion and the total number of segments involved were smaller in group 2 patients. A majority of patients in group 1 (14 of 23) had mixed central and peripheral lesions. In group 2, however, peripheral lesions were more common (10 of 17). In both groups, a purely central lesion was uncommon (one of 23 in group 1 and two of 17 in group 2). CONCLUSION: Common thin-section CT features of SARS are ground-glass opacification and lower lobe and peripheral distribution. © RSNA, 2003This publication has 10 references indexed in Scilit:
- Bronchiolitis Obliterans with Organizing Pneumonia Versus Chronic Eosinophilic PneumoniaAmerican Journal of Roentgenology, 2001
- Crazy-paving Appearance at Thin-Section CT: Spectrum of Disease and Pathologic FindingsRadiology, 1999
- Glossary of terms for CT of the lungs: recommendations of the Nomenclature Committee of the Fleischner Society.Radiology, 1996
- High Resolution CT Findings in Community-Acquired PneumoniaJournal of Computer Assisted Tomography, 1996
- Distribution Pattern of Computed Tomography Findings in Patients with Bronchiolitis Obliterans Organizing PneumoniaInvestigative Radiology, 1996
- High-Resolution Computed Tomographic Features of Bronchiolitis Obliterans Organizing PneumoniaSocial psychiatry. Sozialpsychiatrie. Psychiatrie sociale, 1992
- Bronchiolitis obliterans organizing pneumonia: CT features in 14 patients.American Journal of Roentgenology, 1990
- Hypersensitivity pneumonitis: evaluation with CT.Radiology, 1989
- Chronic Eosinophilic Pneumonia A REPORT OF 19 CASES AND A REVIEW OF THE LITERATUREMedicine, 1988
- Computed Tomography of Bronchiolitis ObliteransJournal of Computer Assisted Tomography, 1988