The majority of scarring and adhesions take place in the first 7 days after a surgical procedure. And the first IP and IV chemotherapy usually commences between 7-21 days after surgery. Therefore, the first treatment provides an opportunity to assess intraperitoneal adhesions. To assess adhesions, we will inject radiopaque dye (iohexol) via the IP port, rotate the patient per the standard practice during IP therapy to distribute the injected liquid, and then take 3 views (simple X-rays) of the abdomen. The area of distribution of the dye (representing distribution of IP chemotherapy) will be compared in two groups of subjects (Seprafilm™ vs. no Seprafilm™).