External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. Advanced external beam radiation systems treat tumors with multiple X-...
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Elastography is a medical procedure analogous to conventional palpation.  It is commonly used to detect tumors and other abnormalities that cause changes in local tissue stiffness.  Quasi-st...
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Radiosensitive films are used to measure radiation dose, for example, to calibrate equipment prior to cancer treatment. They provide high spatial resolution and are especially useful in advanced syste...
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Elastography is a type of imaging technique that reveals the stiffness of tissues. It commonly is used to detect tumors and other abnormalities that cause changes in local tissue stiffness. Measuremen...
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External beam radiation therapy degrades the rapidly dividing cells of a tumor by directing high-energy radiation into the target of interest to eradicate it. The efficacy of the treatment is strongly...
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While primary liver cancer remains one of the most pervasive solid malignancies worldwide—afflicting a million new patients annually—more than 70 percent of cases are ineligible for surgical remov...
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In radiation therapy, particularly with 4-D planning and adaptive radiotherapy, multiple images almost always are acquired and utilized as part of the therapy. A treatment plan is defined on an image ...
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External beam radiation therapy commonly is used to treat cancer patients by directing one or more beams of high energy radiation, such as X-rays, toward a tumor.  Current photon-based radiation ...
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Proton therapy is a form of external beam radiation therapy in which a particle accelerator is used to target a tumor with a beam of protons. Protons have a certain range, or stopping power, and few p...
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Optimizing design plans involving systems and methods for radiation therapy has been a widely researched topic. A common goal is to deliver varying doses of radiation during treatment (higher doses to...
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Radiation therapy methods such as external beam radiation therapy are administered by directing beams of radiation toward a defined target volume in a patient. A radiation therapy plan is used to dete...
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Conventional external beam radiation therapy is used for cancer treatment by irradiating a defined target region using beams of ionizing radiation. The purpose of a treatment plan is to accurately ide...
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Clinical hyperthermia involves elevating the temperature of targeted tissue for therapeutic means. In oncology, hyperthermia can be used to make cancer cells more susceptible to radiation therapy or c...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. Advanced external beam radiation systems treat tumors with multiple x-...
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Radiopharmaceuticals are radioactive materials that “target” specific tissues to allow imaging or treatment. During radiation therapy, the radiopharmaceutical must be administered to provi...
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Prostate cancer is often treated today by implanting tiny sources of radiation, known as seeds, in and around the tumorous tissue, a treatment known as brachytherapy. In order to deliver the prescribe...
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Brachytherapy is a radiation treatment in which small, radioactive seeds are placed into a patient’s body to destroy diseased tissue. In placing these radiation sources, particularly in the regi...
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Radiofrequency (RF) tumor ablation involves the passing of an electrical current from a probe inserted into the tumor to a ground pad situated on the patient’s skin. The high current density nea...
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Radio frequency (RF) ablation is an important method of treating non-resectable primary and metastatic liver tumors. The technique uses an electric current to destroy tumor cells with heat, resulting ...
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The liver is a common site for both primary and metastasizing cancer. Surgical resection, the preferred treatment for liver cancer, is a time consuming procedure during which the surgeon must cut thro...
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Liver cancer is the fifth most common cancer in the world and is frequently fatal.  Surgical resection currently is the preferred treatment for liver cancer.  During the time-consuming treat...
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In microwave ablation, a coaxial microwave antenna is inserted into tissue in or near a tumor to deliver microwave energy to the region and remove the tumor. The specific absorption rate (SAR) pattern...
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Prostate cancer is often treated today by brachytherapy, a procedure that involves implanting tiny radiation sources, known as seeds, in and around the tumor. Guided by real-time ultrasound imaging, s...
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Before, after, and during radiation therapy, images of the patient are generated to ensure that radiation is delivered to the tumor site’s precise location. Instruments known as portal imaging d...
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Radiation therapists must carefully determine beam angles and radiation dose to accurately target tumors while avoiding healthy tissue.  Of special importance are nearby organs-at-risk, which oft...
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