Pneumonia CT: Difference between revisions
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*A chest [[Computed tomography|CT]] can also help to assess reasons for therapy failure and complications, such as [[lung]] [[abscess]], and [[Pleural effusion|pleural effusions]]. | *A chest [[Computed tomography|CT]] can also help to assess reasons for therapy failure and complications, such as [[lung]] [[abscess]], and [[Pleural effusion|pleural effusions]]. | ||
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|[[File:Lobar-pneumonia-ct-findings.jpg| | |[[File:Lobar-pneumonia-ct-findings.jpg|300px|thumb|left| Areas of consolidation [https://radiopaedia.org/cases/lobar-pneumonia-ct-findings Source: Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 32998]]] | ||
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Revision as of 13:54, 29 March 2018
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Pneumonia Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Pneumonia CT On the Web |
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American Roentgen Ray Society Images of Pneumonia CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hamid Qazi, MD, BSc [2], Alejandro Lemor, M.D. [3]
Overview
A chest CT scan is not routinely done in patients with pneumonia, but is a diagnostic test that may be useful when a chest x-ray is not conclusive. CT findings may include lobar consolidation, ground-glass opacities, pleural effusion, lymphadenopathy, and tree-in-bud appereance.
CT
- A chest CT could be useful when a chest x-ray has inconclusive signs of pneumonia but the clinical manifestation suggest pneumonia.
- CT findings in pneumonia include:[1]
- Airspace consolidation
- Ground-glass opacities
- Pleural effusion
- Hilar and/or mediastinal lymphadenopathy
- Bronchiectasis
- Tree-in-bud appereance
- A chest CT can also help to assess reasons for therapy failure and complications, such as lung abscess, and pleural effusions.
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Comparison Between CT Findings in Viral and Bacterial Pneumonia
| CT Finding | Bacterial | Viral |
|---|---|---|
| No findings | 9% | 33% |
| Focal Consolidation | 9% | 6% |
| Pleural Effusion | 41% | 22% |
| Ground-glass Opacity | 45% | 22% |
| Tree-in-bud Appereance | 14% | 31% |
| Bronchial Wall Thickening | 27% | 31% |
| Multifocal Consolidation | 36% | 27% |
| Adapted from American Journal of Roentgenology. 2011;197: 1088-1095[2] | ||
References
- ↑ Ichikado, Kazuya (2014). "High-Resolution Computed Tomography Findings of Acute Respiratory Distress Syndrome, Acute Interstitial Pneumonia, and Acute Exacerbation of Idiopathic Pulmonary Fibrosis". Seminars in Ultrasound, CT and MRI. 35 (1): 39–46. doi:10.1053/j.sult.2013.10.007. ISSN 0887-2171.
- ↑ Miller, Wallace T.; Mickus, Timothy J.; Barbosa, Eduardo; Mullin, Christopher; Van Deerlin, Vivanna M.; Shiley, Kevin T. (2011). "CT of Viral Lower Respiratory Tract Infections in Adults: Comparison Among Viral Organisms and Between Viral and Bacterial Infections". American Journal of Roentgenology. 197 (5): 1088–1095. doi:10.2214/AJR.11.6501. ISSN 0361-803X.