CT Protocols Quiz 3

The deadline for this Quiz is Monday, April 12th at midnight. Type your answers in a word document (please make sure to save it in the old version of Word...with the doc extension after the file name, not the docx) and e-mail it to ctprof09@gmail.com

Questions from Part 1

1. When do we use CT in the evaluation of skeletal trauma? (Lit and describe 4 instances/situations...4 points)
2. Pertaining to CT angiograms on trauma patients what is a single phase examination, and what is a dual phase examination as it relates to administration of contrast. (1 point)
3. Regarding Kernels or reconstruction algorithms: which one provides improved edge enhancement, but increases the image noise? (1 point)
4. Volume rendering can be done with different opacities, what are the two types of V opacities mentioned in the lecture, and which one causes more artifacts? (1 point)
5. In the context of 3-D reconstruction of CT images what is disarticulation? (1 point)
6. What type and amount of contrast is used to distend the bladder for CT Cystoscopy? and what is the method of contrast administration? (1 point)

Questions from Part 2

1. List 6 indications for CT evaluation of pediatric trauma patients (3 points)
2. In the image below, what region of the scapula is fractured? (1 point)

Questions from Part 3

1. List 4 types of vascular injuries to the upper extremity, and describe them (tell me what they are in non-medical terms...4 points).
2. Outline the scan protocols for suspected vascular trauma that is shown in the presentation. (2 points)
3. What type of humeral fracture is shown in the image to the right? (1 point)
4. Based on the concluding remarks in part 3, when is CT most useful, and what are its advantages (3 points)