11 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... CT 1. ... ARDS 3. ... #Pulmonary #ChestCT ... #radiology #CTChest
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
DDx: PAP, pulm edema ... pna, pulm hge, ARDS ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Sign (Reverse-Halo ... CT • Central GGO ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Berlin Criteria for Acute ... week of a known clinical ... edema must be present ... computed tomographic (CT ... lobar collapse, lung
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
CT • Patent airways ... DDx: pna, pulm edema ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Head Cheese Sign on Chest CT
 • Juxtaposition of distinct radiographic areas of low, normal and
CT • Juxtaposition ... attenuation • DDx: sub-acute ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
Fraction (HFrEF) Clinical ... tolerance, and ankle ... : weight gain, lung ... Chest x-ray: signs ... diagnosis #management #cardiology
Based on the images alone, it is usually not possible to determine the cause of the
considered, like acute ... between these chest ... edema - filling ... nodular interstitial lung ... #Radiology #CXR
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
murmur 3/6) - Pulmonary ... Change in clinical ... ACEi/ARBs - Hold ... one post op Cardiology ... unless prior heart/lung