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The particle or hadron beams deployed in radiotherapy (protons, neutrons and helium, carbon, oxygen and neon ions) have physical and radiobiological characteristics which differ from those of conventional radiotherapy beams (photons) and which offer a number of theoretical advantages over conventional radiotherapy. After briefly describing the properties of hadron beams in comparison to photons, this...
In a consecutive series of 241 women with operable breast cancer and clinically negative axillary lymph nodes, 99m Tc was injected on the day before surgery, and scintigraphic images were taken. During breast surgery a handheld gamma ray detector was used to locate the sentinel node and facilitate its removal separately via a small axillary incision. Complete axillary lymphadenectomy...
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