Chest Xrays Christopher A. Klipstein. Chest Xrays Christopher A. Klipstein Approach vs Classic Examples.

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Presentation transcript:

Chest Xrays Christopher A. Klipstein

Chest Xrays Christopher A. Klipstein Approach vs Classic Examples

See anything abnormal?

How do CXRs work ? Send xrays at film – pass though, absorbed to various degrees, scatter Five basic radiologic densities: – Air, fat, soft tissue (fluids/muscle), calcium (bone), metal Film is a map of xray attenuation

Five basic radiologic densities

Film: map of xray attenuation

How do CXRs work ? Send xrays at film – pass though, absorbed to various degrees, scatter Five basic radiologic densities: – Air, fat, soft tissue (fluids/muscle), calcium (bone), metal Film is a map of xray attenuation

How do CXRs work ? Send xrays at film – pass though, absorbed to various degrees, scatter Five basic radiologic densities: – Air, fat, soft tissue (fluids/muscle), calcium (bone), metal Film is a map of xray attenuation See boarders between different densities Do not see boarders when density is the same

See boarders between different densities

Do not see boarders when density is the same

Do not see boarders when density is the same AND in direct contact

Silhouette sign

Do not see boarders when density is the same AND in direct contact

Important to know boarders

And anatomy

Can localize findings

Where is the infiltrate?

How do CXRs work ? Send xrays at film – pass though, absorbed to various degrees, scatter Five basic radiologic densities: – Air, fat, soft tissue (fluids/muscle), calcium (bone), metal Film is a map of xray attenuation See boarders between different densities Do not see boarders when density is the same AND in direct contact

Classic Examples Infiltrates (alveolar and interstitial) Pleural effusion Pneumothorax COPD CHF Mass/nodule

Alveolar infiltrate

Interstitial infiltrates

Pleural Effusion

Pneumothorax

COPD

CHF

Cephalization

Peri-Bronchial Cuffing

Interstitial Edema

Alveolar Edema

Mass (>3cm)

Nodule

Is Your Brain Full ?

How do CXRs work ? Send xrays at film – pass though, absorbed to various degrees, scatter Five basic radiologic densities: – Air, fat, soft tissue (fluids/muscle), calcium (bone), metal Film is a map of xray attenuation See boarders between different densities Do not see boarders when density is the same AND in direct contact (Silhouette sign)

Classic Examples Infiltrates (alveolar and interstitial) Pleural effusion Pneumothorax COPD CHF Mass/nodule

Quiz

Great Job Last xray