Treatment Quality Assurance for Linac Based SRS/SBRT
... Recommendation for Moving Target For all SBRT patients with targets in the thorax or abdomen, a patient-specific tumor-motion assessment should be available. This serves to quantify the motion expected during the respiratory cycle. This data may then be used a) To determine if the patient’s treatme ...
... Recommendation for Moving Target For all SBRT patients with targets in the thorax or abdomen, a patient-specific tumor-motion assessment should be available. This serves to quantify the motion expected during the respiratory cycle. This data may then be used a) To determine if the patient’s treatme ...
Professional capabilities for medical radiation practice
... Submissions will generally be published unless you request otherwise. The National Board publishes submissions on its website to encourage discussion and inform the community and stakeholders. However, the National Board will not publish on its website, or make available to the public, submissions t ...
... Submissions will generally be published unless you request otherwise. The National Board publishes submissions on its website to encourage discussion and inform the community and stakeholders. However, the National Board will not publish on its website, or make available to the public, submissions t ...
Professional capabilities for medical radiation practice
... Submissions will generally be published unless you request otherwise. The National Board publishes submissions on its website to encourage discussion and inform the community and stakeholders. However, the National Board will not publish on its website, or make available to the public, submissions t ...
... Submissions will generally be published unless you request otherwise. The National Board publishes submissions on its website to encourage discussion and inform the community and stakeholders. However, the National Board will not publish on its website, or make available to the public, submissions t ...
12 Patient Immobilization and Image Guidance
... not account for changes that occur over longer time intervals, such as organ deformation due to swelling or organ filling (e.g., bladder and rectum in prostate radiotherapy). Serial scans over intervals of hours or days can be used for this purposein particular for determining systematic and random ...
... not account for changes that occur over longer time intervals, such as organ deformation due to swelling or organ filling (e.g., bladder and rectum in prostate radiotherapy). Serial scans over intervals of hours or days can be used for this purposein particular for determining systematic and random ...
Committee on Medical Physics
... MPHY 34400. Practicum in the Physics of Radiation Therapy. 100 Units. This course combines lectures and intensive hands-on experiments. It includes an introduction to thermoluminescent detectors, film and ionization chamber dosimetry, and quality assurance for intensity modulated radiation therapy ( ...
... MPHY 34400. Practicum in the Physics of Radiation Therapy. 100 Units. This course combines lectures and intensive hands-on experiments. It includes an introduction to thermoluminescent detectors, film and ionization chamber dosimetry, and quality assurance for intensity modulated radiation therapy ( ...
Foreword: Radiology Select Volume 5—Radiation Dose and
... articles for SA-CME. The articles’ corresponding authors were then contacted and asked to supply questions for CME and and SA-CME activities. In this volume, readers can obtain up to 13 CME/SA-CME credits on radiation dose and dose reduction. The online era provides multimedia opportunities for publ ...
... articles for SA-CME. The articles’ corresponding authors were then contacted and asked to supply questions for CME and and SA-CME activities. In this volume, readers can obtain up to 13 CME/SA-CME credits on radiation dose and dose reduction. The online era provides multimedia opportunities for publ ...
CT Dose Measures
... Effective Dose (ED) • Effective dose takes into account where the radiation dose is being absorbed and radiosensitivity of the tissue irradiated • Estimates the equivalent whole-body dose from the absorbed dose • ED allows estimate of stochastic risks (cancer ...
... Effective Dose (ED) • Effective dose takes into account where the radiation dose is being absorbed and radiosensitivity of the tissue irradiated • Estimates the equivalent whole-body dose from the absorbed dose • ED allows estimate of stochastic risks (cancer ...
Breakthrough Technology Expanding the Potential in
... targeting via a new integrated 3-dimensional imaging system Elekta has an enviable track record of innovative technology with many market leading products and world firsts on its list of credits. However as befits a company founded by a clinician it not only develops outstanding medical technology b ...
... targeting via a new integrated 3-dimensional imaging system Elekta has an enviable track record of innovative technology with many market leading products and world firsts on its list of credits. However as befits a company founded by a clinician it not only develops outstanding medical technology b ...
design and implementation of an anthropomorphic quality
... scanning bed to eliminate interference-pattern artifacts found with use of the standard polished glass scanning bed. A mask was created for the scanning bed to exclude light contamination. This film-scanning system is based on the technique used by Dempsey et al. (10). Films were scanned at least 36 ...
... scanning bed to eliminate interference-pattern artifacts found with use of the standard polished glass scanning bed. A mask was created for the scanning bed to exclude light contamination. This film-scanning system is based on the technique used by Dempsey et al. (10). Films were scanned at least 36 ...
Image-guided radiation therapy (IGRT): practical
... Abstract The use of imaging to maximize precision and accuracy throughout the entire process of radiation therapy (RT) delivery has been called “Image-guided RT” (IGRT). RT has long been image guided: in fact, historically, the portal films and later electronic megavoltage images represented an earl ...
... Abstract The use of imaging to maximize precision and accuracy throughout the entire process of radiation therapy (RT) delivery has been called “Image-guided RT” (IGRT). RT has long been image guided: in fact, historically, the portal films and later electronic megavoltage images represented an earl ...
Tomografia komputerowa
... The original 1971 prototype took 160 parallel readings through 180 angles, each 1° apart, with each scan taking a little over five minutes. The images from these scans took 2.5 hours to be processed by algebraic reconstruction techniques on a large computer. The scanner had a single photomultiplier ...
... The original 1971 prototype took 160 parallel readings through 180 angles, each 1° apart, with each scan taking a little over five minutes. The images from these scans took 2.5 hours to be processed by algebraic reconstruction techniques on a large computer. The scanner had a single photomultiplier ...
M.Sc. Medical Physics Regulations and Syllabus from 2008
... (a) Application of physical concepts and methods to the understanding of human body in health and disease (b) Introduction of new and more precise techniques into the investigation and treatment of the individual patient, and (c) Ensuring the availability and use of resources of physics in day –to – ...
... (a) Application of physical concepts and methods to the understanding of human body in health and disease (b) Introduction of new and more precise techniques into the investigation and treatment of the individual patient, and (c) Ensuring the availability and use of resources of physics in day –to – ...
Total Solutions
... • TALON® includes titanium screws, adjustment tools and a patented, detachable TALON® assembly for patient positioning on imaging and treatment tables. • After administration of a local anesthetic, two self-tapping titanium screws are inserted into the patient’s skull – a 20-minute process that ca ...
... • TALON® includes titanium screws, adjustment tools and a patented, detachable TALON® assembly for patient positioning on imaging and treatment tables. • After administration of a local anesthetic, two self-tapping titanium screws are inserted into the patient’s skull – a 20-minute process that ca ...
Applied Physics Radiation Oncology
... the prescription, diagrams of the treatment field, tattoo identification, simulation and portal films, as well as other computations performed before, during, and even after each course of treatment. This record may become important if the patient needs to receive more radiation in the future. ...
... the prescription, diagrams of the treatment field, tattoo identification, simulation and portal films, as well as other computations performed before, during, and even after each course of treatment. This record may become important if the patient needs to receive more radiation in the future. ...
Radiation therapy
Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is therapy using ionizing radiation, generally as part of cancer treatment to control or kill malignant cells. Radiation therapy may be curative in a number of types of cancer if they are localized to one area of the body. It may also be used as part of adjuvant therapy, to prevent tumor recurrence after surgery to remove a primary malignant tumor (for example, early stages of breast cancer). Radiation therapy is synergistic with chemotherapy, and has been used before, during, and after chemotherapy in susceptible cancers. The subspecialty of oncology that focuses on radiotherapy is called radiation oncology.Radiation therapy is commonly applied to the cancerous tumor because of its ability to control cell growth. Ionizing radiation works by damaging the DNA of cancerous tissue leading to cellular death. To spare normal tissues (such as skin or organs which radiation must pass through to treat the tumor), shaped radiation beams are aimed from several angles of exposure to intersect at the tumor, providing a much larger absorbed dose there than in the surrounding, healthy tissue. Besides the tumour itself, the radiation fields may also include the draining lymph nodes if they are clinically or radiologically involved with tumor, or if there is thought to be a risk of subclinical malignant spread. It is necessary to include a margin of normal tissue around the tumor to allow for uncertainties in daily set-up and internal tumor motion. These uncertainties can be caused by internal movement (for example, respiration and bladder filling) and movement of external skin marks relative to the tumor position.Radiation oncology is the medical specialty concerned with prescribing radiation, and is distinct from radiology, the use of radiation in medical imaging and diagnosis. Radiation may be prescribed by a radiation oncologist with intent to cure (""curative"") or for adjuvant therapy. It may also be used as palliative treatment (where cure is not possible and the aim is for local disease control or symptomatic relief) or as therapeutic treatment (where the therapy has survival benefit and it can be curative). It is also common to combine radiation therapy with surgery, chemotherapy, hormone therapy, immunotherapy or some mixture of the four. Most common cancer types can be treated with radiation therapy in some way.The precise treatment intent (curative, adjuvant, neoadjuvant, therapeutic, or palliative) will depend on the tumor type, location, and stage, as well as the general health of the patient. Total body irradiation (TBI) is a radiation therapy technique used to prepare the body to receive a bone marrow transplant. Brachytherapy, in which a radiation source is placed inside or next to the area requiring treatment, is another form of radiation therapy that minimizes exposure to healthy tissue during procedures to treat cancers of the breast, prostate and other organs.Radiation therapy has several applications in non-malignant conditions, such as the treatment of trigeminal neuralgia, acoustic neuromas, severe thyroid eye disease, pterygium, pigmented villonodular synovitis, and prevention of keloid scar growth, vascular restenosis, and heterotopic ossification. The use of radiation therapy in non-malignant conditions is limited partly by worries about the risk of radiation-induced cancers.