Pneumonia CT

Revision as of 20:10, 17 December 2014 by Alejandro Lemor (talk | contribs) (→‎CT)
Jump to navigation Jump to search

Pneumonia Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Pneumonia from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Criteria

Diagnostic Algorithm

History and Symptoms

Physical Examination

Laboratory Findings

Chest X Ray

CT

Other Imaging Findings

Treatment

Medical Therapy

Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Pneumonia CT On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Pneumonia CT

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Pneumonia CT

CDC onPneumonia CT

Pneumonia CT in the news

Blogs on Pneumonia CT

Directions to Hospitals Treating Pneumonia

Risk calculators and risk factors for Pneumonia CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Alejandro Lemor, M.D. [2]

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 oppacities, 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]
  • A chest CT can also help to assess reasons for therapy failure and complications, such as lung abscess and pleural effusions.
Right lower lobe pneumonia.
Image courtesy of RMH Key Conditions, Radiopedia. (original file here). Creative Commons BY-SA-NC
Right lower lobe pneumonia.
Image courtesy of RMH Key Conditions, Radiopedia. (original file here). Creative Commons BY-SA-NC

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

  1. 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.
  2. 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.

Template:WS Template:WH