DPT 712: INTRO TO RADIOLOGY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS

DPT 712: INTRO TO RADIOLOGY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS Purpose of teaching radiology to PTs · Enhance patient care by communicating about images · Create a more comprehensive evaluation (images are more objective) · Give the patient a different perspective than the MD (mechanics vs healing) What are the pros of imaging? · Nonsurgical evaluation · Non-invasive intervention Radiolucent film is black meaning no absorption occurred, less dense materials Radiopaque film is white meaning less rays got through, more dense materials Density how much radiation is absorbed Opacity high density, white areas of film Sclerosis Increased density of bone, indication of OA or increased pressure on joint Lucency low density, black areas of film Contrast media injection of barium into a system to get a better image, bright white outline Radiodensity: black Lowest density, air Radiodensity: dark grey Low density, fat o Ex. Adipose, thin tissues Radiodensity: mid grey Mid-density, water o Ex. Muscle, tendon, organ, thin bones Radiodensity: light grey Light grey: Dense, mineral o Ex. Cancellous bone, tendon Radiodensity: white High density, heavy metals What is radiodensity related to? · Thickness of structure · Angle of projection Traditional radiograph views · Trunk: Patient facing you · Lateral: Path of beam · Hands/feet: Dorsal view digits up Advantages of digital imaging