Lecture (22)

• Lateral Chest (Left or Right Lateral)

• Left Lateral Chest

Patient Position Erect or seated Left side against cassette unless patient complains is on right side then do right lateral if departmental protocol includes this option Top of cassette 1&1/2 inch above

Part positionMSP parallel To cassetteCoronal plane perpendicular to cassetteShoulders resting against cassetteArmed raised and crossed over headCenter thorax to cassetteMake exposure at end of second fulinspiration72 inches FFD is recommended

• Central Ray

perpendicular directed to mid thorax

• Center Point

At level of T7(3-4 inches below jugular notch )• Structure shown

Superimposed lungs & diaphragm, trachea, bronchus, major vessels, heart thoracic cage

• Oblique chest• (Right Anterior Oblique RAO) or• (Left Anterior Oblique LAO)Patient Position

Standing or seated Adjust coronal plane 45 degreesTop of cassette 2 inch above shoulderPart positionShoulder nearest cassette rolled posteriorlyHand placed on hipOpposite hand placed on top ofcassetteholderCenter thorax to cassetteExposed on full inspiration72 inches FFD is recommendedBoth oblique may be taken Central RayPerpendicular Center Point At level of T6

• Structure shown

• Lung from the apex to the costophrenic angle, great vessels and heart out line

• (For Anterior obliques the side of interest is the farthest from the film. Thus RAO

• will best visualize the left lung )

• Oblique chest• (Right Posterior Oblique RPO) or• (Left Posterior Oblique LPO)Patient Position Standing or seated Adjust coronal plane 45 degreesTop of cassette 2 inch above shoulderPart positionPatient rotated 45 degrees with right posterior Shoulder against cassette forRPO Patient rotated 45 degrees with leftposterior Shoulder against cassette forLPOArm closest to film raised on headOther arm placed on hip with palm outExposure after 2nd full inspiration72 inches FFD is recommendedBoth oblique may be taken

• Central Ray

Perpendicular

• Center Point

At level of T6• Structure shown

Lung from the apex to the costophrenic angle, great vessels and heart out line

• Note:• Posterior obliques best visualize the side closest to the

film • (Posterior oblique position show the same anatomy as the • opposite anterior oblique. Thus the LPO corresponds to

the RAO and the RPO to the LAO) • If the patient unable to stand oblique recumbent can be

done