Which of the following affect radiographic contrast?

Explain exposure indexes. (example high and low). (2 pts)

This determine the gray level that can be assigned to a pixel is the:

If the statement is true, type “true” and “false” if it is false. Correct the False Statements. (2 point each) Because overexposure of the digital image receptor typically produces an image with appropriate brightness and no quantum noise, all studies should be done with a little more exposure than needed.

Which of the following combinations would result in an image with the least amount of magnification?

Critique the following radiographs and determine their diagnostics quality. The following should be included in your answer: (3 points for each film) Positioning criteria: is it positioned properly? / do not state a simple yes or no – explain why it is, or how you know it is not… Anatomy included: is all anatomy included? / specifically state what anatomy is missing Improvements: explain how to make this radiograph better (be sure to use proper terminology)   Radiograph B: PA FINGER (3rd digit) Positioning:   Anatomy:   Improvements?  

Critique the following radiographs and determine their diagnostics quality. The following should be included in your answer: (3 points for each film) Positioning criteria: is it positioned properly? / do not state a simple yes or no – explain why it is, or how you know it is not… Anatomy included: is all anatomy included? / specifically state what anatomy is missing Improvements: explain how to make this radiograph better (be sure to use proper terminology)   Radiograph G: OBLIQUE HAND Positioning:   Anatomy:   Improvements?

Critique the following radiographs and determine their diagnostics quality. The following should be included in your answer: (3 points for each film) Positioning criteria: is it positioned properly? / do not state a simple yes or no – explain why it is, or how you know it is not… Anatomy included: is all anatomy included? / specifically state what anatomy is missing Improvements: explain how to make this radiograph better (be sure to use proper terminology)   Radiograph H: AP EXTERNAL ROTATION ELBOW Positioning:   Anatomy:   Improvements?

A PA wrist was done using 2 mAs @ 60 kVp. What technical factors would be used to increase contrast & maintain density?   Use the 15% rule to show new technique.

A poorly positioned AP forearm image demonstrates superimposition of the third & forth metacarpal bases and the wrist demonstrates the pisiform and hook of the hamate.  How should the pt. be repositioned to obtain an optimal image?