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Article: Severe acute respiratory syndrome: Radiographic appearances and pattern of progression in 138 patients

TitleSevere acute respiratory syndrome: Radiographic appearances and pattern of progression in 138 patients
Authors
KeywordsAcute interstitial
Lung
Radiography
Severe acute respiratory syndrome
Pneumonia
Issue Date2003
Citation
Radiology, 2003, v. 228, n. 2, p. 401-406 How to Cite?
AbstractPURPOSE: To retrospectively evaluate the radiographic appearances and pattern of progression of severe acute respiratory syndrome (SARS). MATERIALS AND METHODS: Chest radiographs obtained at clinical presentation and during treatment in 138 patients with confirmed SARS (66 men, 72 women; mean age, 39 years; age range, 20-83 years) were assessed. Radiographic appearances of pulmonary parenchymal abnormality, distribution, and extent of involvement on initial chest radiographs were documented. Recognizable patterns of radiographic progression were determined by comparing the overall mean percentage of lung involvement for each patient on serial radiographs. RESULTS: Initial chest radiographs were abnormal in 108 of 138 (78.3%) patients and showed air-space opacity. Lower lung zone (70 of 108, 64.8%) and right lung (82 of 108, 75.9%) were more commonly involved. In most patients, peripheral lung involvement was more common (81 of 108, 75.0%). Unifocal involvement (59 of 108, 54.6%) was more common than multifocal or bilateral involvement. No cavitation, lymphadenopathy, or pleural effusion was demonstrated. Four patterns of radiographic progression were recognized: type 1 (initial radiographic deterioration to peak level followed by radiographic improvement) in 97 of 138 patients (70.3%), type 2 (fluctuating radiographic changes) in 24 patients (17.4%), type 3 (static radiographic appearance) in 10 patients (7.3%), and type 4 (progressive radiographic deterioration) in seven patients (5.1%). Initial focal air-space opacity in 44 of 59 patients (74.6%) progressed to unilateral multifocal or bilateral involvement during treatment. CONCLUSION: Predominant peripheral location; common progression pattern from unilateral focal air-space opacity to unilateral multifocal or bilateral involvement during treatment; and lack of cavitation, lymphadenopathy, and pleural effusion are the more distinctive radiographic findings of SARS. © RSNA, 2003.
Persistent Identifierhttp://hdl.handle.net/10722/291640
ISSN
2020 Impact Factor: 11.105
2020 SCImago Journal Rankings: 3.118
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWong, K. T.-
dc.contributor.authorAntonio, Gregory E.-
dc.contributor.authorHui, David S.C.-
dc.contributor.authorLee, Nelson-
dc.contributor.authorYuen, Edmund H.Y.-
dc.contributor.authorWu, Alan-
dc.contributor.authorLeung, C. B.-
dc.contributor.authorRainer, T. H.-
dc.contributor.authorCameron, Peter-
dc.contributor.authorChung, Sydney S.C.-
dc.contributor.authorSung, Joseph J.Y.-
dc.contributor.authorAhuja, Anil T.-
dc.date.accessioned2020-11-17T14:54:48Z-
dc.date.available2020-11-17T14:54:48Z-
dc.date.issued2003-
dc.identifier.citationRadiology, 2003, v. 228, n. 2, p. 401-406-
dc.identifier.issn0033-8419-
dc.identifier.urihttp://hdl.handle.net/10722/291640-
dc.description.abstractPURPOSE: To retrospectively evaluate the radiographic appearances and pattern of progression of severe acute respiratory syndrome (SARS). MATERIALS AND METHODS: Chest radiographs obtained at clinical presentation and during treatment in 138 patients with confirmed SARS (66 men, 72 women; mean age, 39 years; age range, 20-83 years) were assessed. Radiographic appearances of pulmonary parenchymal abnormality, distribution, and extent of involvement on initial chest radiographs were documented. Recognizable patterns of radiographic progression were determined by comparing the overall mean percentage of lung involvement for each patient on serial radiographs. RESULTS: Initial chest radiographs were abnormal in 108 of 138 (78.3%) patients and showed air-space opacity. Lower lung zone (70 of 108, 64.8%) and right lung (82 of 108, 75.9%) were more commonly involved. In most patients, peripheral lung involvement was more common (81 of 108, 75.0%). Unifocal involvement (59 of 108, 54.6%) was more common than multifocal or bilateral involvement. No cavitation, lymphadenopathy, or pleural effusion was demonstrated. Four patterns of radiographic progression were recognized: type 1 (initial radiographic deterioration to peak level followed by radiographic improvement) in 97 of 138 patients (70.3%), type 2 (fluctuating radiographic changes) in 24 patients (17.4%), type 3 (static radiographic appearance) in 10 patients (7.3%), and type 4 (progressive radiographic deterioration) in seven patients (5.1%). Initial focal air-space opacity in 44 of 59 patients (74.6%) progressed to unilateral multifocal or bilateral involvement during treatment. CONCLUSION: Predominant peripheral location; common progression pattern from unilateral focal air-space opacity to unilateral multifocal or bilateral involvement during treatment; and lack of cavitation, lymphadenopathy, and pleural effusion are the more distinctive radiographic findings of SARS. © RSNA, 2003.-
dc.languageeng-
dc.relation.ispartofRadiology-
dc.subjectAcute interstitial-
dc.subjectLung-
dc.subjectRadiography-
dc.subjectSevere acute respiratory syndrome-
dc.subjectPneumonia-
dc.titleSevere acute respiratory syndrome: Radiographic appearances and pattern of progression in 138 patients-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1148/radiol.2282030593-
dc.identifier.pmid12759474-
dc.identifier.scopuseid_2-s2.0-0037727352-
dc.identifier.volume228-
dc.identifier.issue2-
dc.identifier.spage401-
dc.identifier.epage406-
dc.identifier.isiWOS:000184381100017-
dc.identifier.issnl0033-8419-

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