Why study imaging? What are the 6 aims to represent high quality health care? correct answers Participate in professional collaboration to enhance the quality of patient care
- safety
- timely
- efficient ($)
- effective
- patient centered
- equitable
In terms of imaging, what are we not...
PT 606 Exam 1 || very Flawless.
Why study imaging? What are the 6 aims to represent high quality health care? correct answers
Participate in professional collaboration to enhance the quality of patient care
In terms of imaging, what are we not trying to do? correct answers - providing an imaging
diagnosis (we make treatment diagnosis)
- second guess the radiologist
- confuse the patient
CPI correct answers Clinical performance instrument
- how we are graded during our clinicals. 22 areas
What do we need to know about imaging? correct answers - what type of imaging is it?
- what anatomy is in the image?
- what is normal/abnormal about the image?
- how does this effect my treatment diagnosis and patient management?
Types of Imaging Exams correct answers - Radiographs (X-Ray radiographs)
- Computed Tomogram (CT)
- Magnetic Resonance Image (MRI)
- Positron Emission Tomography (PET)
- Bone Scintigraphy
- Duel energy x-ray absorptionmetry (DEXA or DXA) imaging
- Ultrasonography (US)
Types of Image Displays correct answers Conventional radiography
- projection: converts 3D-2D (ex radiography)
Advanced imaging
- Tomographic: images a single plane of finite thickness (ex CT, MRI, Ultrasound)
- 3D display: whole volume display (3D CT)
Types of tomography views correct answers - Sagittal (left/right)
- coronal (front and back)
, - axial (transverse)
Indications for Radiographs correct answers - second most commonly used medical tests, after
lab tests (easy, cheap, quick)
- body made of substances w/ differing densities that can be revealed w/ X-ray radiographs
- useful to identify fracture, infection, and alignment abnormalities
Define X-RAY correct answers Form of electromagnetic radiation that is invisible to the human
eye
Define X-ray film correct answers Physical material on which image is exposed
Define radiograph correct answers X-ray film containing an image of an anatomical part of a
patient
3 components of a radiograph correct answers - x-ray beam source
- patient
- x-ray film
Why are x-rays black and white? correct answers - patient's body absorbs various amounts of
radiation from beam
- amount of absorption dependent on composition (atomic weight/density) and thickness of tissue
- beam emerges from body containing different intensities of radiation
- remainder of beam reaches x-ray film
- x-ray beam causes chemical reactions w/ film producing various shades of gray
- final image is representation of an atomic radiodensities
- penetration of body by x-rays and ionization of silver atoms on film = gray image
has to deal with the amount of energy absorption in the body
- higher atomic energy absorbs more and shows up white, lower atomic numbers opposite
Remnant radiation correct answers Different intensities of radiation
Radiolucent correct answers Easily penetrated by x-rays
Radiopaque correct answers Impenetrable to x-rays (metals)
Radiodense correct answers Increased radiodensity
- physical qualities of an object that determine how much radiation it absorbs from x-ray beam
- the more radiodense an object, the whiter it appears
What does radiodensity depend on? correct answers - composition
- thickness
- outline (curved vs. flat)
What is the scale of how penetrable x-rays are? correct answers Radiolucent-radiopaque
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