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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
CT Right Lung: ... • Middle Lobe: Lateral ... , Lateral, Posterior ... #CT #CTChest #pulmonary ... #clinical #radiology
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
and lateral abdomen ... 50 CXRs Head CT ... Chest CT 3 mSv 150 ... CXRs Abdomen CT ... #PatientInfo #Radiology
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
looking at the lateral ... must be located anteriorly ... Sterptococcus pneumoniae ... #Clinical #Radiology ... #CXR #Pneumonia
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
lie against the anterior ... not reach the anterior ... anteroinferior side on the lateral ... #Clinical #Radiology ... #CXR #Lateral #
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... Bilateral Peripheral ... Organizing Pneumonia ... Pulmonary #ChestCT #radiology ... #CTChest #diagnosis
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
without contrast material ... without contrast material ... ) — Chest 7 mSv ... #PatientInfo #Radiology ... Imaging #ChestXRay #CXR
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Differential Diagnosis ... rarely typical pneumonia ... #diagnosis #pulmonary ... #CXR #clinical ... #CT
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... Diagnosis is generally ... infiltrate (e.g., CXR ... , CT, ultrasound ... #Pneumonia #Venn
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... can suggest the diagnosis ... On the CT cavitation ... #Clinical #Radiology ... #CXR #CTChest #
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
hypoxemia and bilateral ... be detected on CT ... or CXR ● PaO2/ ... oxygenation in pneumonia ... Summary #CheatSheet #Diagnosis