00:00This is CTC refers to circulating tumor cells and CTEC refers to circulating
00:10tumor epithelium cells because most of the cancer comes from our epithelium like
00:16the skin, esophagus, nasal, pharyngeal, heart, lung, intestine, stomach, colon, most of
00:26the cancer comes from the epithelium of our organs that's why we can use this test to
00:34cover almost all the cancers in our body and this is a very super early non-invasive blood screening
00:45for almost all kinds of cancers so it can detect the solid cancer size from 1 mm to 5 mm and in this
00:56situation our conventional imaging cannot detect next yeah this is the principle of detecting the
01:08super early stage cancer through CTC, CTE testing for cancer because when the cancer you know
01:18everyone will have the liability of cancer cells in our body because our as maybe the stress some
01:26many factors affect our body so every day many people will have more than maybe hundreds of cancer
01:35cells in our body but those cancer cells are not cancer disease because when we have the cancer cell
01:42of course i say the cancer cells originate from our body cells but those cells can be recognized
01:50and attacked by our immunity that's why when we are young we have less incidence when we were when we are
02:00old we have the liability of cancer that's why and when the tumor in the precocious cancer
02:11cancerous period the tumor is very small when the cancer cells can grow it become a new blood and i say
02:22and this growth also need blood vessels because the cancer growth need the blood supply when the tumor is
02:31smaller than 1 mm when the tumor is smaller than 1 mm the cancer do not need any blood vessels but when it
02:43is bigger than 1 mm it needs some blood vessels go inside the tumor to supply the nutrition of the cancer cells
02:50so in that situation if we use the ctc test then we can detect the cancer cells in our bloodstream
03:20so if we have kids the cancer cells in our bloodstream then we could get kids the cancer cells to get 지
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