Processing a tib-fib radiograph as an abdomen may result in which of the following?

Processing a tib-fib radiograph as an abdomen may result in which of the following?

• A. Excessive patient dose
• B. Loss of spatial resolution
• C. Incorrect brightness and contrast
• D. Reduced dynamic range

Answer: (C)

Processing a tib-fib radiograph with settings intended for the abdomen uses a different grayscale mapping (window/level and look-up table) than what bone and tibial soft tissues require. The abdomen is optimized to show soft tissues and organs, while a tib-fib exam relies on clearly differentiating dense bone from soft tissue. When the wrong processing is applied, the grayscale mapping makes the bone and surrounding tissues appear with the wrong brightness and contrast, so the image can be diagnostically misleading. In short, the misapplication results in incorrect brightness and contrast, which is why that choice is best.

Processing a tib-fib radiograph with settings intended for the abdomen uses a different grayscale mapping (window/level and look-up table) than what bone and tibial soft tissues require. The abdomen is optimized to show soft tissues and organs, while a tib-fib exam relies on clearly differentiating dense bone from soft tissue. When the wrong processing is applied, the grayscale mapping makes the bone and surrounding tissues appear with the wrong brightness and contrast, so the image can be diagnostically misleading. In short, the misapplication results in incorrect brightness and contrast, which is why that choice is best.