Exam (elaborations)
CT Registry Review - ARRT.
- Course
- Institution
CT Registry Review - ARRT.
[Show more]
Seller
Follow
lydiaomutho
Content preview
CT Registry Review - ARRT1st gen translate-rotate principle - ANS-1 degree for 180 degrees
abdominal aorta bifurcates at what level - ANS-L4
Absorbed dose - ANS-the amount of energy absorbed per unit mass
(grays or rads)
absorption efficiency - ANS-ability of an individual CT detector to absorb & measure the
transmitted x-ray intensity incident upon it
Afterglow - ANS-detector continues to glow after radiaiton is terminated
(scintillation-type scanners)
ALARA - ANS-As Low As Reasonably Achievable
Algorithm - ANS-(AKA kernal)
filter applied to raw data during reconstruction to remove blurring artifacts
Aliasing - ANS-streak artifact caused by insufficient views (data samples) obtained
during data acquisition
Analog-to-Digital Converter (ADC) - ANS-converts electrical signal to digital form
(part of the DAS)
analytic method of CT image recon - ANS-filtered back-projection & Fourier
Transformation
Angle for insertion of a butterfly needle - ANS-15 degrees
array processor - ANS-reviews raw data & performs all major processing of image
arterial phase - ANS-peak arterial enhancement following the bolus IV administration of
iodinated contrast material.
Artifact - ANS-noise on an image
artifact not affected by the operator - ANS-ring artifact
, artifact unique to MDCT - ANS-cone beam artifact
ataxia - ANS-lack of muscle coordination
Atrial Systole corresponds with with which portion of the cardiac cycle - ANS-P-wave
Attenuation - ANS-reduction in intensity of a radiation beam as it passes through a
substance
attenuation coefficient - ANS-value given to an object rating its ability to absorb an x-ray
beam
automatic tube current modulation (ATCM) - ANS-software used to adjust the mA
throughout an acquisition to reduce patient dose
Automatic Tube Voltage Selection (ATVS) - ANS-software used to adjust kVp based on
the changing attenuation along the scan range to reduce patient dose
back projection - ANS-- 3rd step in IR loop of iterative reconstruction algorithm
- ray sum data are projected back onto a matrix.
beam hardening - ANS-the increase in average energy of x-ray beam as it penetrates
tissue
Beam Width - ANS-The dimension of the primary beam in the longitudinal or z-axis -
controlled by the pre-patient collimator.
blood urea nitrogen (BUN) - ANS-renal function (nitrogen in blood)
(7-25mg/dl)
bow-tie filter - ANS-Filter compensating for a cylindrical shape (body)
-filter is thicker at the ends
Cardiac Diastole corresponds with with which portion of the cardiac cycle - ANS-T-wave
Cine CT acquisition involves - ANS-multiple axial scans at the same location
Claudicaiton - ANS-condition of intermittent cramping in the legs due to poor circulation
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 lydiaomutho. 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.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now