Radiographic Techniques and Imaging Principles Exam Questions with Verified Solutions (Graded A+)
0 view 0 purchase
Course
Radiographic Techniques and Imaging Principles
Institution
Radiographic Techniques And Imaging Principles
Radiographic Techniques and Imaging Principles Exam Questions with Verified Solutions (Graded A+)
Density - Answers The anatomic part to be radiographed will be positioned and evaluated to determine the thickness of the part and the overall tissue.
X-ray tube - Answers An evacuated glass bulb wit...
Radiographic Techniques and Imaging Principles Exam Questions with Verified Solutions (Graded A+)
Density - Answers The anatomic part to be radiographed will be positioned and evaluated to determine
the thickness of the part and the overall tissue.
X-ray tube - Answers An evacuated glass bulb with positive anode and negative cathode electrodes.
Cathode - Answers A filament that gives off electrons when heated; the source of electrons.
Anode - Answers The electrode that the electrons strike; it is a metal disc made of high atomic number
metal.
Collimator - Answers A device consisting of open lead shutters through which the x-ray exits the tube
housing, allowing the radiographer to determine the size of the exposure field on the patient.
Direct digital radiography (DR) - Answers Uses an imaging plate (IP) that remains in place inside the x-ray
table or wall unit.
Image receptor (IR) - Answers The imaging plate (IP) is also known as the image receptor.
Dr. Terri Fauber - Answers Has conducted extensive research on radiation exposure and digital imaging.
Fauber 2009 - Answers Overexposing patients is in objectionable practice.
Air/gas - Answers Present in such areas as the lungs, stomach, and intestines.
Fat - Answers Surrounds abdominal organs and the abdomen wall, as well as being a factor when
radiographing obese patients.
Water - Answers Present in all cells and accumulating in severe sprains.
Muscle - Answers Contains large amounts of water and has approximately the same density as the heart
and blood vessels.
Bone - Answers Denser than other tissues, except when affected by osteoporosis.
Tooth enamel - Answers The densest tissue in the body.
Kilovoltage - Answers Has an effect on imaging because it determines the wavelength of the x-rays
produced and thus the beam's penetrating power.
Distance - Answers Relates to the distance from the radiation source (x-ray tube) to the image receptor.
Milliampere-second (mAs) - Answers Determines the current or flow of electrons for a certain length of
time.
Kilovoltage (kVp) or kilovolts-peak - Answers Determines the 'force' behind the flow of electrons and is
the factor that determines the penetrating ability of the radiation.
, Image brightness - Answers The amount of light emission from the computer monitor, determined by
the intensity of radiation striking the image receptor.
Image contrast - Answers The visible difference between two areas of brightness in the displayed image.
Subject contrast - Answers The patient's anatomy, which plays a major role in determining the overall
contrast on the image.
Contrast media - Answers Affect contrast because they have different radiation-absorbing properties.
Fog - Answers Primary scatter radiation emanating from the patient, which increases the overall
darkness of the radiographic image.
Grids - Answers Used to absorb scatter radiation before it reaches the image receptor.
Detail - Answers Controlled by the contrast present in the image.
Spatial resolution - Answers May be thought of as the sharpness of the structure in the radiographic
image.
Distortion - Answers A false representation of the object being radiographed.
Size/Shape - Answers Two types of image distortion.
Size distortion - Answers Magnification making the part appear larger than it really is, occurring from
using too short of an SID or too long of an OID.
Shape distortion - Answers Caused by inappropriate angling of the x-ray tube or part being
radiographed.
Foreshortening - Answers Appears shorter than it is.
Elongation - Answers Appears longer than it is.
Beam alignment - Answers Relates to the alignment of the object in relation to the x-ray tube image
receptor, which determines the shape as seen in the radiograph image.
Fluoroscopy - Answers Provides a live action view of the interior of the body.
Image intensifier - Answers Tube or flat panel detector that electronically brightens and enhances the
image and transmits it to the monitor.
Computed tomography (CT) - Answers Units provide cross-sectional views of the body, improving the
accuracy of diagnoses and reducing the need for exploratory surgery.
Magnetic resonance Imaging - Answers Units allow cross-sectional views of the body to be made
without the use of ionizing radiation.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TutorJosh. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
