Measuring circulating tumor cells in blood draining from the tumor site during surgery may yield more signals than peripheral blood draws.

“other another group in the uh field uh led by carolyn dive from mr manchester where they actually took blood from the draining veins at the time of the surgery the lobectomy for lung cancer and did circling tumor cell assays and found evidence that there they could find more signals energy was better in that context because the hypothesis being that you're basically measuring the blood outflow of the tumor right so you're going to catch more cells that way because once they hit the systemic circulation they're getting diluted all you know over the entire body”