Radiology word problems & math problems

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Receptor Exposure
Contrast scale

[@evaa7246]

Your content is amazing, I enjoyed your math examples. Tag me if you ever post more. Thank you

[@stephenmccurdy6619]

Wonderful video!!! Thank you so much!

[@flaero]

Thank you. It helped me understand these types of problems :)

[@Kileyannbb]

Thank you that was very helpful!

[@chad969]

Hi Meaghan, one of the quiz questions on the ARRT prep website Corectec seems to contradict the teaching that kVp affects the scale of contrast. I'm hoping you can tell me if the website is in error or offer clarification. The quiz question says: _"In order to achieve an exposure as low as reasonably achievable, which of the following changes can be made with digital imaging WITHOUT changing the brightness or contrast?"_ According to the website, the correct answer is this: _"Increase kVp, decrease mAs"_ Is this really saying that increasing the kVp doesn't change contrast? I thought higher kVp resulted in a longer scale of contrast. There must be some nuance here that I'm not grasping.

[@meaghanpiretti7340]

With digital imaging kVp does not influence image contrast. Image contrast is controlled by the LUT and processing algorithms. kVp can influence subject contrast in terms of absorption of the beam. mAs has no affect on brightness, that is controlled by the pixels.

[@chad969]

@@meaghanpiretti7340 I see. Thank you

[@goodvybznyny]

How did you get 15 for the one that is a fraction

[@saadrashid8825]

Thank you😊

[@user-iu9ru4db7s]

What does this all mean I need help please I what to become a X-ray tech and help me please and what dose contrast mean

[@meaghanpiretti7340]

Get in an x-ray program and they will teach you all of this information!