NDEB - Radiology Review Questions With Correct Answers A+

NDEB - Radiology Review Questions With Correct Answers A+ type/scope of imaging should be guided by 1. the _______ (size, accessibility, nature) 2. ________ of the imaging technique to show diagnostic features 3. amount of detail needed (i.e. ________) 4. radiation _______ to patient - Correct Answer->1. abnorality 2. ability of imagining technique 3. resolution required 4. radiation dose routine panoramic radiographs are part of standard of care - t/f? - Correct Answer->false!! - NO routine / screening exams - only PRESCRIPTION RADIOLOGY radiographs should be taken regularly as part of screening exams - Correct Answer->false *screening = NO CBCT should ONLY be prescribed after... - Correct Answer->taking a 2D image first --> insufficient --> CBCT dense structures _____ or _______ the xray beam --> _______ (more/less) beams hit the receptor --> more radiopaque - Correct Answer->resist or absorb --> less beams hit the receptor --> more radiopaque more xray beams hitting receptor --> more raidolucent or opaque? - Correct Answer->more radiolucent maxillary sinus, airway = higher or lower attenuation? - Correct Answer->lower attenuation = more radiolucent coronoid process of mandible often appears in the PAs of i. molar region of Md ii. molar region of Mx - Correct Answer->ii. molar region of Mx inverted Y structure = superimposition of (2) - Correct Answer->lateral border of nasal cavity + anterior border of Mx sinus what causes cervical burnout on xrays? i. due to increased kVp ii. density difference at the CEJ iii. anatomical difference in interproximal enamel - Correct Answer->ii. density difference at the CEJ a structure is located between the image receptor and the rotation centre i. single real image ii. double real image iii. ghost image - Correct Answer->i. single real image The structure is located posterior to the centre of rotation and is intercepted twice by the x-ray beam ... CONTINUES....