SLIDE 15
(Nancy Pratt)

Here's a couple of examples of what we see in an ultrasound of Shanthi. These are both pictures of her reproductive tract. Here, this image here is in the previous cycle, the late luteal phase of her cycle. This band right on the top is the rectal wall, the intestinal wall, and then this dark band is the vagina, and in the middle is the lumen of the vagina. The white stripe is mucous inside the vagina. On the left of the picture, the V-shaped structure is the cervix. Now, about a month later, we're getting into late September, in the follicular phase of the cycle, you can see most of the mucous is gone in the vagina, the vagina is very much more folded, and the cervix is a much larger structure. So these are the kinds of changes we're looking for to help us define when ovulation is going to occur.