The antenna delivers microwave energy directly into the selected target, where it produces rapid molecular rotation. Molecular motion generates friction, and that friction raises tissue temperature within the treatment zone. The resulting heat causes coagulative necrosis, a form of tissue death in which the treated tissue is destroyed while the procedure remains focused on the intended abnormal growth.
A defined treatment zone helps clinicians concentrate thermal injury on the targeted tissue while monitoring nearby anatomy. This focused approach supports local treatment rather than exposing the entire body to a treatment effect. The ability to work within a selected zone also explains why microwave ablation can complement, or serve as an alternative to, surgery and systemic therapies in appropriate cases.
The antenna is the component that transfers microwave energy into the target tissue. Its placement determines where molecular rotation, frictional heating, and coagulative necrosis occur. Because the energy is delivered at the target rather than broadly throughout the body, clinicians can direct treatment toward a selected tumor or abnormal growth while assessing the surrounding anatomy.
Clinicians first identify the abnormal tissue and plan access to the target. They then place an antenna into the selected area, commonly through a percutaneous approach, and deliver microwave energy to create the treatment zone. Ultrasound or computed tomography can guide placement and help clinicians monitor the surrounding anatomy during the local treatment.
In medicine, the technique supports local treatment of selected tumors and other abnormal growths in several organs. The overview identifies the liver, lung, kidney, and bone as important treatment sites. Its use is therefore organ-spanning rather than limited to one cancer location, although the approach is intended for cases in which a focused local intervention is appropriate.
Microwave ablation may be considered when a tumor or abnormal growth is suitable for focused local treatment. Its minimally invasive, percutaneous approach can complement surgery or systemic therapies, or provide an alternative in selected situations. Image guidance allows clinicians to target the lesion while monitoring surrounding anatomy, supporting treatment planning across several medical settings.