Pneumonia CT: Difference between revisions

Jump to navigation Jump to search
No edit summary
m (Bot: Removing from Primary care)
 
(14 intermediate revisions by 3 users not shown)
Line 1: Line 1:
__NOTOC__
__NOTOC__
{{Pneumonia}}
{{Pneumonia}}
{{CMG}}; {{AE}} {{AL}}
{{CMG}}; {{AE}} {{HQ}}, {{AL}}


==Overview==
==Overview==
A chest [[Computed tomography|CT scan]] is not routinely done in patients with pneumonia, but is a [[diagnostic test]] that may be useful when a [[Chest X-ray|chest x-ray]] is not conclusive. [[Computed tomography|CT]] findings may include lobar [[Consolidation (medicine)|consolidation]], ground-glass opacities, [[pleural effusion]], [[lymphadenopathy]], and tree-in-bud appereance.


==CT==
==CT==
*A chest CT could be useful when a chest X-ray has inconclusive signs of pneumonia but the clinical manifestation suggest pneumonia.
*A chest [[Computed tomography|CT]] could be useful when a [[Chest X-ray|chest x-ray]] has inconclusive signs of pneumonia but the clinical manifestation suggest pneumonia.
*CT findings in pneumonia include:<ref name="Ichikado2014">{{cite journal|last1=Ichikado|first1=Kazuya|title=High-Resolution Computed Tomography Findings of Acute Respiratory Distress Syndrome, Acute Interstitial Pneumonia, and Acute Exacerbation of Idiopathic Pulmonary Fibrosis|journal=Seminars in Ultrasound, CT and MRI|volume=35|issue=1|year=2014|pages=39–46|issn=08872171|doi=10.1053/j.sult.2013.10.007}}</ref>
*[[Computed tomography|CT]] findings in pneumonia include:<ref name="Ichikado2014">{{cite journal|last1=Ichikado|first1=Kazuya|title=High-Resolution Computed Tomography Findings of Acute Respiratory Distress Syndrome, Acute Interstitial Pneumonia, and Acute Exacerbation of Idiopathic Pulmonary Fibrosis|journal=Seminars in Ultrasound, CT and MRI|volume=35|issue=1|year=2014|pages=39–46|issn=08872171|doi=10.1053/j.sult.2013.10.007}}</ref>
**Airspace [[Consolidation (medicine)|consolidation]]
**Ground-glass opacities
**[[Pleural effusion]]
**Hilar and/or mediastinal [[lymphadenopathy]]
**[[Bronchiectasis]]
**Tree-in-bud appereance


:*Consolidation
*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]].
:*Ground-glass oppacities
{|
:*[[Pleural effusion]]
|[[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]]]
:*Hiliar and/or mediastinal [[lymphadenopathy]]
|}


<gallery>
====Comparison Between CT Findings in Viral and Bacterial Pneumonia====
{| style="border: 0px; font-size: 85%; margin: 3px; width:400px;" align="center"
| valign="top" |
|+
! style="background: #4479BA; color:#FFF;  width: 200px;" | CT Finding
! style="background: #4479BA; color:#FFF;  width: 100px;" | Bacterial
! style="background: #4479BA; color:#FFF;  width: 100px;" | Viral
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |  No findings
| style="padding: 5px 5px; background: #F5F5F5; text-align:center" | 9%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 33%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | Focal [[Consolidation (medicine)|Consolidation]]
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 9%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 6%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | [[Pleural effusion|Pleural Effusion]]
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 41%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 22%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |  Ground-glass Opacity
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 45%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 22%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | Tree-in-bud Appereance
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 14%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 31%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | Bronchial Wall Thickening
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 27%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" | 31%
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" | Multifocal [[Consolidation (medicine)|Consolidation]]
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" |  36%
| style="padding: 5px 5px; background: #F5F5F5;text-align:center" |  27%
|-
| colspan="3" style="padding: 0px 5px; background: #F5F5F5;" |<small>Adapted from American Journal of Roentgenology. 2011;197: 1088-1095<ref name="MillerMickus2011">{{cite journal|last1=Miller|first1=Wallace T.|last2=Mickus|first2=Timothy J.|last3=Barbosa|first3=Eduardo|last4=Mullin|first4=Christopher|last5=Van Deerlin|first5=Vivanna M.|last6=Shiley|first6=Kevin T.|title=CT of Viral Lower Respiratory Tract Infections in Adults: Comparison Among Viral Organisms and Between Viral and Bacterial Infections|journal=American Journal of Roentgenology|volume=197|issue=5|year=2011|pages=1088–1095|issn=0361-803X|doi=10.2214/AJR.11.6501}}</ref></small>
|}


</gallery>
==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
{{WS}}
{{WH}}


[[Category:Pneumonia]]
[[Category:Pneumonia]]
[[Category:Pulmonology]]
[[Category:Pulmonology]]
[[Category:Infectious disease]]
[[Category:Emergency medicine]]
[[Category:Emergency medicine]]
[[Category:Pediatrics]]
[[Category:Pediatrics]]
[[Category:Disease]]
[[Category:Disease]]
[[Category:primary care]]
{{WS}}
{{WH}}

Latest revision as of 23:45, 29 July 2020

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: 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

Areas of consolidation Source: Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 32998

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