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Chest

Chest. Chest. 2 views PA (Posterior to Anterior) Lateral. Facts to Know for PA. 14 x 17 Cassette Crosswise for men Lengthwise for women Shielding required (around waist) Mark in light field anatomically correct. Positioning of PA. Patient is erect, weight evenly distributed

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Chest

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  1. Chest

  2. Chest • 2 views • PA (Posterior to Anterior) • Lateral

  3. Facts to Know for PA • 14 x 17 Cassette • Crosswise for men • Lengthwise for women • Shielding required (around waist) • Mark in light field anatomically correct

  4. Positioning of PA • Patient is erect, weight evenly distributed • Mid-sagittal plane to mid-line of image receptor (IR) • Chin raised • Hands on lower hips • Shoulders rotated forward against IR • Shoulders depressed downward • NO ROTATION

  5. Central Ray (CR) • T-7 ( 7-8 inches below vertebral prominens) • Source to Image Distance (SID) 72 inches

  6. Techniques • 110 KVp @ 3 mAs • Collimate to outer skin borders laterally and top border should be level of vertebral prominens • Breathing- hold breath on 2nd full inspiration

  7. Radiograph Critique • Both lungs—apices and costophrengic angles • Air field trachea • Hilum markings • Rotations- sternoclavical (SC) joints equal distance from center of vertebral column • No scapula in lung field • No chin superimposition in apices • Correct KVP- vertebral bodies through heart shadow

  8. Facts for the Lateral • 14 x 17 cassette • Lengthwise for both men and women • Shield • Mark

  9. Positioning for Lateral • Patient is erect • LEFT side against IR, weight evenly distributed • Align mid-sagittal plane parallel to IR • True lateral position • Arms raised above head • Chin elevated

  10. Central Ray (CR) • CR is at mid- thorax at T-7 (3-4 inches below jugular notch) • SID 72 inches

  11. Techniques • 125 KVp @ 6 mAS • Collimation- lateral borders and top at vertebral prominens • Breathing—Suspend on 2nd full inspiration

  12. Film Critique • Entire lungs from apices to the costophrenic angles • Sternum anterior- ribs posterior • No superimposition of chin or arms in apices • No rotation- Ribs are superimposed • No tilting • Correct KVP- see rib outlines and lung markings through heart shadow and upper lung areas

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