Mosby's Exam Review-CT (Imaging Procedures) questions with correct answers

Typical protocol for CT-brain for a pt w/ Hx of dizziness CORRECT ANSWER 2.5-mm × 2.5-mm sections through the posterior fossa, 5 mm × 5 mm to vertex What is the scout (localizer) projection used to prescribe an axial CT acquisition of the brain? CORRECT ANSWER LAT scout Glioma is a general term used to describe a group of primary tumors. Consisting of malignant glial cells, gliomas occur in CORRECT ANSWER the brain Which of the following patient positions may have been used to produce this scout image of the head? CORRECT ANSWER Supine (hyperextend neck) & Prone (head and neck resting on chin). Coronal CT images may be produced in either case with the imaging plane positioned parallel to the coronal plane of the patient's head #1 CORRECT ANSWER POST clinoid process #3 CORRECT ANSWER EAM (External Auditory Meatus) WW & WL to display the dense bone of the mastoid tip & IAC (Internal Auditory Canal) CORRECT ANSWER (WW: 4,000) (WL: +250) SFOV for CT- temporal bones & IAC CORRECT ANSWER Head (25-cm =250-mm)