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Showing 1 to 9 of 9 for “"photon therapy"”.
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Development of A Beam-Specific Planning Target Volume and A Robust Plan Analysis to ol For Proton Therapy
<p>Proton therapy is growing increasingly popular due to its superior dose characteristics compared to conventional photon therapy. Protons travel a finite range in the patient body and stop, thereby delivering no dose beyond their range. However, because the range of a proton beam is heavily …
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Quantitative Comparison of Late Effects Following Photon Versus Proton External-Beam Radiation Therapies: to ward An Evidence-Based Approach to Selecting A Treatment Modality
<p>Radiation therapy has been used as an effective treatment for malignancies in pediatric patients. However, in many cases, the side effects of radiation diminish these patients’ quality of life. In order to develop strategies to minimize radiogenic complications, one must first quantitatively …
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Radiation therapy of pediatric brain tumors : comparison of long-term health effects and costs between proton therapy and IMRT
Radiation therapy is an important component of pediatric brain tumor treatment. However, radiation-induced damage can lead to adverse long-term health effects. Proton therapy has the ability to reduce the dose delivered to healthy tissue when compared to photon radiation therapy, but this dose …
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Investigation of Respiratory Motion Management Techniques For Proton and Photon Radiotherapy of Lung Cancer
… sources of radiation such as high-energy photons. However, respiratory motion can significantly impact the delivered proton and photon dose distributions during lung cancer radiotherapy. The goals of this dissertation research were to evaluate the impact of respiratory motion and to …
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Radiogenic Second Cancer Risk Differences In Female Hodgkin Lymphoma Patients Treated With Proton Versus Photon Radiotherapies
… curative treatments for HL, including the use of photon radiation therapy (RT) techniques, have increased 10 year survival rates to approximately 90% among young patients. These RT treatments, however, contribute to an increased incidence of radiogenic second cancer (RSC) formation to the healthy …
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Experimental investigation of the characteristics of prompt gammas produced in tissue during proton therapy treatment
Protons entering matter have a finite range while photons have a gradual, exponential attenuation as they travel through material. Proton radiation therapy takes advantage of this difference, by aligning the cancerous tissue with the end of the proton range where it deposits the maximum amount of …
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The Role of Cell Sterilization In Population Based Studies of Radiogenic Second Cancers Following Radiation Therapy
<p>Advances in radiotherapy have generated increased interest in comparative studies of treatment techniques and their effectiveness. In this respect, pediatric patients are of specific interest because of their sensitivity to radiation induced second cancers. However, due to the rarity of …
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Robust Treatment Planning and Robustness Evaluation for Proton Therapy of Head and Neck Cancer
Intensity modulated proton therapy (IMPT) in head and neck squamous cell carcinoma (HNSCC) offers superior advantages over conventional photon therapy, by generating high conformal doses to the target volume and improved sparing of the organ at risks (OARs). Besides, robust treatment planning …
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Reduction of Dose Calculation Errors For Patients With Metal Implants Receiving Photon Radiation Therapy
… patients receiving external beam radiation therapy have metal implants that can affect their treatment, and these metal implants can degrade the accuracy of dose calculations. Dose calculation errors result from limitations of modern dose calculation algorithms in modeling metal/tissue …