Radiologic Physics RADT 100 Anatomy of the Mediastinum and Body Quadrants

Radiologic Physics RADT 100 Anatomy of the Mediastinum and Body Quadrants 1. What is the name of the area between the two pleural cavities?: Mediastinum 2. Which structure is not demonstrated within the mediastinum in PA projec- tions of the chest?: Diaphragm 3. Which pathologic condition of the lung involves the replacement of air with fluid in the lung interstitium and alveoli?: Pulmonary Edema 4. Why should chest images be performed with a 72" SID?: To minimize magni- fication of the heart 5. Why should chest images be performed after the patient has suspended respiration after the 2nd inspiration?: To expand the lungs better 6. With reference to the IR, how are the midsagittal plane and the midcoronal plane positioned for the PA projection of the chest?: Midsagittal----Perpendicu- lar Midcoronal---- Parallel 7. For the Pa projection of the chest, which positioning maneuver should be performed for the best removal of the scapulae from the lung fields?: Rotate the shoulder forward 8. Why would the chest most likely be demonstrated using two PA projections (in which the patient is seen in suspended inspiration and suspended expira- tion)?: To demonstrate pneumothorax 9. Which of the following is an effective way to detect rotation of the patient with the PA projection image of the chest?: The asymmetrical appearance of the sternoclavicular joints 10. For which projection of the chest should the midsagittal plane be parallel with the IR?: Lateral Projection 11. With reference to the IR, How are the midcoronal plane and the midsagittal plane positioned for the lateral projection of the chest?: Midcoronal---Perpen- dicular Midsagittal--- Parallel 12. Which projection of the chest best demonstrates lung apices free from superimposition with the clavicles?: AP Axial Projection Left Lateral Decubitus Position 13. Which PA oblique projection of the chest may be used to evaluate the heart and great vessels when performing a cardiac series?: 55-60 degree LAO 14. 4 types of body habitus?: