Medical Physics: Some Recollections in Diagnostic X
... devices, scintillation cameras, ultrasonographic (US) devices, advanced high capacity x-ray tubes, and rapid film processors (1). However, maturation of the computer has accelerated even more and enabled technology such as computed tomography (CT), magnetic resonance (MR) imaging, and sophisticated ...
... devices, scintillation cameras, ultrasonographic (US) devices, advanced high capacity x-ray tubes, and rapid film processors (1). However, maturation of the computer has accelerated even more and enabled technology such as computed tomography (CT), magnetic resonance (MR) imaging, and sophisticated ...
Annals of the ICRP
... Even when CT is the optimal investigation for the clinical problem and recommended by guidelines (RCR, 2007), there are many tricks of the trade which can reduce dose. It has become widely appreciated that an un-enhanced series is not indicate for the majority of body CT examinations; perfusion stud ...
... Even when CT is the optimal investigation for the clinical problem and recommended by guidelines (RCR, 2007), there are many tricks of the trade which can reduce dose. It has become widely appreciated that an un-enhanced series is not indicate for the majority of body CT examinations; perfusion stud ...
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... In 2007, Applegate initially clarified the need for such guideline and stated what aspects it should include. According to his statement, this guideline should address the method of screening, documentation of the results, protection of patient’s privacy, and situation management in case of emergenc ...
... In 2007, Applegate initially clarified the need for such guideline and stated what aspects it should include. According to his statement, this guideline should address the method of screening, documentation of the results, protection of patient’s privacy, and situation management in case of emergenc ...
Polf-GEANT4_Conference_Presentation
... • Use Monte Carlo (Geant4 and MCNPX) to verify proton dose distribution calculated using TPS Dose difference = TPS – Monte Carlo ...
... • Use Monte Carlo (Geant4 and MCNPX) to verify proton dose distribution calculated using TPS Dose difference = TPS – Monte Carlo ...
VARiAn TRUeBeAm RepLACes LineAR ACCeLeRAToR AT UCLA
... Medical Center, an existing Siemens linear accelerator with the TrueBeam system and implemented the ARIA® oncology information system, resulting in a paperless workflow and digital patient record and enabling two treatment locations— in Westwood and Santa Monica—to be managed as a single radiation o ...
... Medical Center, an existing Siemens linear accelerator with the TrueBeam system and implemented the ARIA® oncology information system, resulting in a paperless workflow and digital patient record and enabling two treatment locations— in Westwood and Santa Monica—to be managed as a single radiation o ...
Personnel radiation dose considerations in the use of an
... patient set-up. The equipment and patient positioning used are standard techniques within radiotherapy but are more rigorous than would usually be required for diagnostic imaging. The radiographers also make permanent marks on the patient’s skin. These provide a reference between the internal anatom ...
... patient set-up. The equipment and patient positioning used are standard techniques within radiotherapy but are more rigorous than would usually be required for diagnostic imaging. The radiographers also make permanent marks on the patient’s skin. These provide a reference between the internal anatom ...
Comparison of radiation dose and image quality between sequential
... The research tools implemented to record the data for this study were two checklists were used (Fig.2). Checklists were considered the most appropriate tool to collect data from this study as they are easy to fill in, not time consuming and to the point. The first checklist allowed the researcher to ...
... The research tools implemented to record the data for this study were two checklists were used (Fig.2). Checklists were considered the most appropriate tool to collect data from this study as they are easy to fill in, not time consuming and to the point. The first checklist allowed the researcher to ...
The 20th Anniversary of the passage of the 1992 Mammography
... Some entries were to thank God, others to ask him why all this is happening to them or how will they get through it? Their journal pages were full of fear, hurt, anger and sadness, but also joy and peace. Journaling gave these patient’s permission to voice their feelings without repercussion. As I s ...
... Some entries were to thank God, others to ask him why all this is happening to them or how will they get through it? Their journal pages were full of fear, hurt, anger and sadness, but also joy and peace. Journaling gave these patient’s permission to voice their feelings without repercussion. As I s ...
CMPI Exam Format - College of Medical Physics, India
... 6.2 The candidates desiring to take only the written examination will have to pay Rs 2000 /- only, however such candidates will have to pay Rs 3000 /- as oral examination fee while appearing for the oral examination. Candidates can pay the fees in total or in parts as given above. 6.3 Reappearance i ...
... 6.2 The candidates desiring to take only the written examination will have to pay Rs 2000 /- only, however such candidates will have to pay Rs 3000 /- as oral examination fee while appearing for the oral examination. Candidates can pay the fees in total or in parts as given above. 6.3 Reappearance i ...
Conceptual Amendment to SB 219 General 1
... b. His or her application for a full or limited certificate is denied by the Division; or c. The expiration of one year after the date on which he or she is hired to operate a source of ionizing radiation for the purposes of performing radiation therapy or radiologic imaging. Provisional certificati ...
... b. His or her application for a full or limited certificate is denied by the Division; or c. The expiration of one year after the date on which he or she is hired to operate a source of ionizing radiation for the purposes of performing radiation therapy or radiologic imaging. Provisional certificati ...
File Ref.No.38933/GA - IV - J2/2013/CU UNIVERSITY OF CALICUT
... RPH1C01. Mathematical methods in Physics 4 credits RPH1C02. Numerical techniques and statistics 4 credits RPH1C03. Basic Electronics ...
... RPH1C01. Mathematical methods in Physics 4 credits RPH1C02. Numerical techniques and statistics 4 credits RPH1C03. Basic Electronics ...
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.