Basics of Chest Imaging

1. Basics of Chest Imaging Rebecca Peterson, M. D. Associate Professor Department of Radiology University of Ottawa

2. Anatomy

3. Normal PA

4. Normal Lateral

5. The Chest X-ray in Disease

6. Basic Patterns of Disease Air-Space Disease VS Interstitial Disease

7. Pulmonary Acinus

8. Air space disease

9. Consolidation • Means “solid lung” • Implies that there is “air-space disease” • May occur with or without volume loss

10. Consolidation without volume loss

13. Air Bronchogram

15. Air Bronchogram

17. Characteristics of Air Space Disease • Acinar shadow • Homogeneous density (consolidation) • “Silouette”sign • Loss of distinct margins next to consolidation • Air bronchogram • Non-segmental distribution

18. Consolidation RML abnormal normal

19. Consolidation RML normal abnormal

30. Causes of Airspace Disease • Infection • Hemorrhage • Edema • Neoplasm • Idiopathic

31. Consolidation withvolume loss “Atelectasis” or “collapse”

34. Normal Collapse LLL

35. Collapse LLL

36. Direct signs of volume loss • Movement of a fissure

37. Indirect signs of volume loss • Upward shift of the diaphragm • Mediastinal shift to that side • Movement of main-stem bronchus • Hypovascularity of remaining lung due to hyperinflation • Lung looks darker

38. Collapse RUL complete incomplete

39. Collapse RUL incomplete complete

40. Collapse LUL incomplete complete

41. Collapse LUL incomplete complete

42. Collapse LLL

43. Collapse LLL

44. Collapse RML

45. Collapse RML

48. TEST