Clinical Applications Exercise

In the following exercise, you will use what you learned about how x-rays are absorbed differently by different types of tissue. You will look at two chest x-rays, one healthy and one diseased, as well as an asymmetrical mammography study. In each of these images you will be asked to identify areas of the image that contain specific types of organs or tissues (e.g. lung, bone, tumor) and then plot the intensity values for those regions of the image. Notice how different the intensity values are, and how it is these intensity value differences that allow your eye to easily distinguish between different anatomical structures in the images.