Understanding Cancer and the Radiation-Related Treatment Thereof

Cancer is complicated. Radiation is complicated. Understanding them does not have to be.

Understanding Cancer and Radiation-Related Treatment Thereof is an accessible but scientifically rigorous guide to the biology of cancer, the physics of ionizing radiation, and the remarkable ways modern medicine brings the two together.

Beginning with the fundamental question of what cancer actually is, the book follows the science from normal cells, DNA damage, mutation, tumor growth, invasion, and metastasis into the physics and radiobiology that make radiation therapy possible. Along the way, complex subjects such as absorbed dose, fractionation, radiosensitivity, oxygen effects, treatment planning, dosimetry, brachytherapy, proton and heavy-ion therapy, radiopharmaceutical therapy, radiation protection, and combined cancer treatment are explained in straightforward language without stripping away the science that makes them meaningful.

Modern radiation therapy is far more sophisticated than simply aiming radiation at a tumor. Treatment may involve three-dimensional imaging, computerized dose optimization, multileaf collimators, image guidance, adaptive planning, radioactive implants, molecular targeting, proton beams, therapeutic radionuclides, and increasingly, artificial intelligence. This book explains what these technologies do, why they are used, and how physics, biology, engineering, and medicine work together to make them possible.

Just as importantly, it addresses the questions that matter when the science becomes personal.

Why does radiation damage cancer?

Why are treatments divided into fractions?

Why does the treatment team leave the room?

Does radiation make a patient radioactive?

Why can side effects continue after treatment ends?

What is the difference between external-beam therapy, brachytherapy, proton therapy, and radiopharmaceutical treatment?

Why might radiation be combined with surgery, chemotherapy, hormonal therapy, targeted therapy, or immunotherapy?

And what do terms such as gray, dose, stage, metastasis, radiosensitivity, therapeutic ratio, half-life, and ALARA actually mean?

Written for students, radiation professionals, scientifically curious readers, patients, and the families standing beside them, Understanding Cancer and Radiation-Related Treatment Thereof refuses to choose between scientific depth and human understanding.

It does not promise easy answers, and it does not disguise difficult truths. Instead, it attempts to make those truths understandable.

Because knowledge does not make difficult circumstances easy.

It can, however, make them less mysterious.