| 摘要 |
AC electric fields at certain frequencies and field strengths disrupt dividing cells, but leave undividing cells substantially unharmed. Since cancer cells divide much more often than normal cells, those AC fields have been shown to be effective at inhibiting tumor growth and shrinking tumors. Because certain body parts (e.g., the lungs and the liver) are at high risk for developing metastases in patients with some forms of cancer, treating those body parts with those AC fields can prevent metastases from growing in those body parts. This treatment may be used both after a metastasis has reached a detectable size and prophylactically (to prevent such metastases from ever reaching a detectable size in the first place). It may also be used to prevent cancer in people with a high probability of developing cancer (e.g., based on family history).
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