Submit Manuscript | http://medcraveonline.com Abbreviations: TCP: Tumor Control Probability; NTCP: Normal Tissue Control Probability; LKB: Lyman Kutcher Burman; IGRT: Image Guided Radiation Therapy; IMRT: Intensity Modulated Radiation Therapy; SIB-IMRT: Simultaneous Integrated BoostIMRT; VMAT: Volumetric Modulated Arc Therapy; DA: Double Arc; SA: Single Arc; HT: Helical Tomotherapy; IFP: Improv...

Radiation therapy has come a long way from treatment planning based on orthogonal radiographs with large margins around tumours. Advances in imaging and radiation planning software have led to three-dimensional conformal radiotherapy and, further, to intensity modulated radiotherapy (IMRT). IMRT permits sparing of normal tissues and hence dose-escalation to tumours. IMRT is the current standard...

The modern practice of radiation therapy relies on volumetric patient images. Computed tomography (CT) imaging has been the primary imaging modality used in radiation oncology for over two decades. However, magnetic resonance imaging (MRI) and positron emission tomography (PET) are increasingly becoming an important component of the treatment planning process. CT studies provide information not...

During the past half century, an ongoing technological revolution in cancer imaging and radiation treatment has taken us ever closer to the goal of treating localized tumors without harming normal tissues. In his visionary 1946 paper, Harvard physicist Robert Wilson suggested that energetic protons could provide a nearly ideal form of radiotherapy. What makes protons the preferred particle type...

Volumetric modulated arc therapy (VMAT) and intensity modulated radiation therapy (IMRT) are commonly used treatment techniques for cancer treatment, and both the VMAT and IMRT techniques use the photon beam (mega-voltage X-rays) to deliver radiation dose to the tumor. The capability of modulating radiation beam has increased the ability of delivering more conformal dose distributions to tumor ...

Objective: A process and system of treatment planning is very important in radiation therapy. The features of the software and the accuracy in the dose calculation and dose distribution will affect to the treatment quality as well as the patient outcome. When a treatment planning system is applied in treatment at the first time, it should be checked and approved all its system information, feat...

There is considerable evidence that for many node-positive breast cancer patients, local regional radiation therapy after mastectomy, or regional radiation therapy in addition to breast treatment after lumpectomy, results in improved local control, a more modest but consistent reduction in distant metastases, and absolute improvement in breast cancer survival (1, 2). On the other hand, there is...

Background: Craniospinal radiotherapy faces technical challenges which are due to the sensitivity of the location in which the gross tumor is, and to organs at risk around planning target volume. Using modern treatment planning systems causes a reduction in the complexities of the treatment techniques. The most effective method to assess the dosimetric accuracy and the validity of the ...

Radiation oncology is a medical discipline mainly involved in the treatment of cancer with ionizing radiation. It is based on full knowledge of individual patient cancer disease, delineation of the target volume including tumor that has to receive therapeutic radiation dose, delineation of normal tissues to be spared, treatment planning with dedicated calculation algorithms, radiation delivery ...