CAMRT study set | 154 Questions and Answers 100% Verified | Updated 2024 Small pneumothorax: what additional image to the routine pictures? - Answe r PA inspiration, PA expiration, Lateral (or lateral decub with affected lung UP) AEC not recommended - for expiration should be increased by 1/3 of that used for inspiration images Pneumothorax picture in PA inspo: what additional image to the routine pictures? - Answer PA Expiration.... or lateral decub with affected lung up (air rising to the highest point in the hemithorax is more clearly visible then on erect views) Shoulder AEC hard soft tissue differentiation - what factors to adjust? - Answer WINDOW WIDTH (narrower) smaller ww to enhance the amount of blacks and whites showing up so you can see the small differences in similar HU What is the best position + SID for hig hest spatial resolution for C -spine obliques? RAO - Answer PA (reduce dose) (LAO RAO), long SID (180cm) Trauma: AP Caldwell with IOML perpendicular, how much angulation? - Answer 8 cephalic (to compensate for the OML) What is seen on CT of an intra cranial SOL? - Answer Midline shift OR ventricle compression SOL = space occupying lesion Pregnant worker already with 1mSv irradiated, how much for the remainder of the pregnancy? (declared at 3 months?) - Answer 4msv total 3msv for remainder of pregnancy Projection for orbits: - Answer (AP 15 Axial, PA 15 Axial, PA 30 Axial, AP 30 Axial) Modified waters (modified parietoacanthial projection) best projection TMJ image - angulation? - Answer Axiolateral projection (Schuller method): 25-30 caudad - center 1.3cm anterior and 5cm superior to upside EAM Axiolateral oblique projection (Modified law method): 15 degree caudal angle - center 1.5inch superior to upside EAM AP axial projection (modified towne): angle 35 -degrees caudad from OML OR 42 -
degrees from IOML - center 3inches superior to nasion. Mandible image - how much was it turned (body is well demonstrated?) - Answer 30 toward IR (45 degree rotation demonstrates mentum, 10 -15 degree rotation provides a general survey of the mandible, true lateral demonstrates the ramus) Pelvis ischial spine not superimposed over the pelvic rim - closer to acetabulum - which way is it rotated? - Answer LPO or RPO If the left ischial spine is demonstrated w/o pelvic brim superimposition then it is superimposed on the right acetabulum. l eft obturator foramen more foreshortened than right. In pelvis rotation, the upside will have ischial spine superimposition over the acetabulum. Maxillary sinus opacified, what pathology is most likely? - Answer Blowout fracture - pretty freaking sure "opacification of the sinus caused by hemorrhage and mucosal edema is an indirect sign of..this" OR sinusitis Increase HVL = tungsten vaporization? come back to this one. - Answer HVL is the thickness of a designated absorber required to decrease the intensity of the primary beam by half its original value. an xray beam of 3 -4.5mm aluminium is considered acceptable when kVp ranges from 80 -100. Increased skin dose, inadequate filtration to reduce the beam to half, leakage 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 StudySet. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.