Looking for easy and quick way to draw on class notes "x-rays - image"

[Lacrosseboss18]

I am using Microsoft office 2007. Im taking a Digital imaging class (radiology) and the class notes/ x-rays are all on powerpoint. I like to have it in Normal mode so that a I have a list of slide on the left, main powerpoint in the center main view and i take my notes in the "add note" section.



I constantly need to outline/draw on the X-rays to point out the abnormalities. To draw on the image i have to enter presentation mode draw and then exit and click keep changes. I was wondering if there is an easier way to draw on images while in the normal mode?

I was also wondering if it is possible to add my "drawings" and have them appear and disappear. A lot of times there might be multiple different things i want to point out on an image. The Professor does his lectures in presentation mode, draws on the screen, clears it and then draws something else on the same image. Is there any way i can do this in powerpoint? A quick way of adding animation to appear on click and disappear on another click and then the other drawings appear and disappear the same.

I currently draw arrows to point things out but i want to outline them to make all the borders more obvious.

I also have a wacom bamboo (small one) which i could use.

Thank you very much for the help