1 It is often necessary to do both CT and PET scans to evaluate cancer. 2  Help a doctor choose the best treatment for cancer or to see how well treatment is working. 3  PET scans may also be done to see whether surgery can be done to remove a tumor.
The 2016 Road Atlas. Weâve had plenty of time to hone our craft of compiling accurate, detailed maps and travel information into the ultimate road trip accessoryâ-something thatâs useful (and easy to use), current, beautiful, and compact.No wonder generations of savvy travelers have put our Road Atlas atop their packing lists! Learn Moreâº.eâve had plenty of time to hone our craft of compiling accurate, detailed maps and travel information into the ultimate road trip accessoryâ-something thatâs useful (and easy to use), current, beautiful, and compact. No wonder generations of savvy travelers have put our Road Atlas atop their packing lists! Learn Moreâº.
1. A nautical chart is a âroad mapâ to the oceans and waterways where you take your boat. It holds the key to a vast amount of information that you need to steer a course to and from destinations in a safe manner.Without a nautical chart and knowing the various symbols and information, you may as well be driving blind.t has a compass rose to give you a true bearing in which to steer your boat, a distance scale, and a latitude and longitude scale so that you can you find your location. With a nautical chart and a few other tools, you can pilot your vessel anywhere in the world that you want to go.