Dosimetry/ Radiation Therapy Terms
... fluoroscopic monitoring throughout the treatment process. Cone beam CT acquires many projections over the entire volume of interest in each projection. 85) Stereotactic radiation therapy- SRT is fractionated and can be done on linac, the brain lab, Cyberknife, or Gammaknife. Stereotatic radiosurgery ...
... fluoroscopic monitoring throughout the treatment process. Cone beam CT acquires many projections over the entire volume of interest in each projection. 85) Stereotactic radiation therapy- SRT is fractionated and can be done on linac, the brain lab, Cyberknife, or Gammaknife. Stereotatic radiosurgery ...
Pathways June 2013 - Society of Nuclear Medicine
... with NETs. While trials are moving forward with all three agents, widespread use of these agents in the United States may be determined by their patent expirations (2014 for DOTATOC, 2015 for DOTATATE, 2022 for DOTANOC). CTN is coordinating the efforts at sites holding a current IND for these agents ...
... with NETs. While trials are moving forward with all three agents, widespread use of these agents in the United States may be determined by their patent expirations (2014 for DOTATOC, 2015 for DOTATATE, 2022 for DOTANOC). CTN is coordinating the efforts at sites holding a current IND for these agents ...
Image Guided Radiation Therapy
... Tumors and organs can move up to 3 cm with respiration, so CT data for planning must target the tumor position at would be during treatment. Traditional CT images show respiratory motion as artifacts. Consequently, target volumes based on these images may end up being distorted and larger than neces ...
... Tumors and organs can move up to 3 cm with respiration, so CT data for planning must target the tumor position at would be during treatment. Traditional CT images show respiratory motion as artifacts. Consequently, target volumes based on these images may end up being distorted and larger than neces ...
Targeted molecular imaging in oncology
... Among these chelators, DTPA forms less stable complexes with 99mTc. 99mTc-HYNIC has been shown to be useful in imaging, but labeling HYNIC with 99mTc requires two chemicals, thiphenylphosphine and tricine, which are inconvenient for the kit preparation. The nitrogen and sulfur combination has been s ...
... Among these chelators, DTPA forms less stable complexes with 99mTc. 99mTc-HYNIC has been shown to be useful in imaging, but labeling HYNIC with 99mTc requires two chemicals, thiphenylphosphine and tricine, which are inconvenient for the kit preparation. The nitrogen and sulfur combination has been s ...
Digital Medical Linear Accelerator Specifications. Fighting cancer
... We are convinced that successful radiation therapy calls for the optimal resultant of speed and precision. Because speed alone at the cost of precision means to unacceptably increase the chance of affecting healthy surrounding tissue. And precision alone at the cost of speed means to lose short trea ...
... We are convinced that successful radiation therapy calls for the optimal resultant of speed and precision. Because speed alone at the cost of precision means to unacceptably increase the chance of affecting healthy surrounding tissue. And precision alone at the cost of speed means to lose short trea ...
as a PDF - Giovanni Lucignani
... imaging techniques will play a major role in the definition of tumour extent and staging of cancer patients. Studies on PET as a predictor of response to radiotherapy are promising; however, optimisation of the pharmacokinetics of the PET radiopharmaceuticals and their validation against gold standa ...
... imaging techniques will play a major role in the definition of tumour extent and staging of cancer patients. Studies on PET as a predictor of response to radiotherapy are promising; however, optimisation of the pharmacokinetics of the PET radiopharmaceuticals and their validation against gold standa ...
MASTER`S PROGRAMME IN MEDICAL PHYSICS
... equivalent to 1500–1800 hours of study in all countries irrespective of standard or qualification type and is used to facilitate transfer and progression throughout the Union. Typically, a ECTS is equivalent to 25-30 hours of study. ...
... equivalent to 1500–1800 hours of study in all countries irrespective of standard or qualification type and is used to facilitate transfer and progression throughout the Union. Typically, a ECTS is equivalent to 25-30 hours of study. ...
Dynamic Contrast Enhanced Whole Brain Perfusion using a
... 7 T MRI has shown potential in imaging the human brain, in particular related to acquisitions with high spatial resolution. At lower field strengths, useful clinical information has also been obtained from perfusion scans following administration of a bolus of exogenous contrast agent. Here we prese ...
... 7 T MRI has shown potential in imaging the human brain, in particular related to acquisitions with high spatial resolution. At lower field strengths, useful clinical information has also been obtained from perfusion scans following administration of a bolus of exogenous contrast agent. Here we prese ...
Annals of the ICRP
... although such measurements can also be obtained at a much lower dose by techniques such as DEXA. 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 th ...
... although such measurements can also be obtained at a much lower dose by techniques such as DEXA. 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 th ...
Virtual Simulation in the Radiooncology Department of B-A
... point for better dose distribution – For using different centre of treating volumes (whole breast vs. tumor bed) ...
... point for better dose distribution – For using different centre of treating volumes (whole breast vs. tumor bed) ...
I. Equipments for external beam radiotherapy 5 linear accelerators
... C-arm, isocentric localization X-ray equipment (Siemens Arcadis Orbic) ...
... C-arm, isocentric localization X-ray equipment (Siemens Arcadis Orbic) ...
seven things to know about radioisotopes
... abnormalities, and target treatment to a particular area. Radioisotopes are also special because their use provides patients and doctors with the option of using minimally-invasive surgical techniques, rather than the far more risky large-scale surgeries, from which it is harder to recover, that wer ...
... abnormalities, and target treatment to a particular area. Radioisotopes are also special because their use provides patients and doctors with the option of using minimally-invasive surgical techniques, rather than the far more risky large-scale surgeries, from which it is harder to recover, that wer ...
Medical Uses of Monochromatic X-Rays
... The x-ray absorption coefficients of light elements are very small, yet if one uses an x-ray interferometer and some "3-D" imaging techniques, phase shifts in the x-ray beam traversing the tissues can be elicited by light elements which are large enough to be detected. This technique is approximatel ...
... The x-ray absorption coefficients of light elements are very small, yet if one uses an x-ray interferometer and some "3-D" imaging techniques, phase shifts in the x-ray beam traversing the tissues can be elicited by light elements which are large enough to be detected. This technique is approximatel ...
Ch 15 ppt Diagnostic
... •The use of sound waves to produce images •Used to monitor fetal development during pregnancy •Echocardiography is a test used to diagnose cardiovascular diseases and disorders of many other organs •Doppler is used on blood vessels ...
... •The use of sound waves to produce images •Used to monitor fetal development during pregnancy •Echocardiography is a test used to diagnose cardiovascular diseases and disorders of many other organs •Doppler is used on blood vessels ...
IMAGING: MAGNETIC RESONANCE IMAGING (MRI) TESTS
... During the exam: The patient is positioned on the scanning table feet first with arms at the side. Coils (special devices to improve image quality) may be placed on or around the pelvic area of the body. The scanning table slides into the magnet, covering the lower body. During the scan, patients do ...
... During the exam: The patient is positioned on the scanning table feet first with arms at the side. Coils (special devices to improve image quality) may be placed on or around the pelvic area of the body. The scanning table slides into the magnet, covering the lower body. During the scan, patients do ...
Paired end sequencing - Siteman Cancer Center
... contributions of many tumor (and associated normal) cells. • The digital nature of NGS data allows an estimation of how common each validated mutation is in the tumor cell population. • More prevalent mutations are likely “older” and this adds evidence for their importance in driving carcinogenesis. ...
... contributions of many tumor (and associated normal) cells. • The digital nature of NGS data allows an estimation of how common each validated mutation is in the tumor cell population. • More prevalent mutations are likely “older” and this adds evidence for their importance in driving carcinogenesis. ...
University of Groningen In-situ element analysis from gamma
... force. The neutrons interact with the nuclei of atoms through the strong nuclear interaction. This hadronic interaction has a very short ranged, which means that the neutrons have to pass close to a nucleus for an interaction to occur. Because of the small size of the nucleus in relation to the atom ...
... force. The neutrons interact with the nuclei of atoms through the strong nuclear interaction. This hadronic interaction has a very short ranged, which means that the neutrons have to pass close to a nucleus for an interaction to occur. Because of the small size of the nucleus in relation to the atom ...
Stereotactic radiotherapy (SRT) Dr. Rath
... Stereotactic Radiotherapy The delivery of multiple fractionated doses of radiation to a definitive target volume sparing normal structure (both intra as well as extracranial) ...
... Stereotactic Radiotherapy The delivery of multiple fractionated doses of radiation to a definitive target volume sparing normal structure (both intra as well as extracranial) ...
DIQUAD, LLC– Dental Image Quality and Dose
... • Image Sharpness is critical for good quality radiography. Image Sharpness values less than 5.0 results in blurry images reducing the visibility of trabeculations and making subtle lesions difficult to visualize. • Low Density, Density Difference, Mid-density, and Image Sharpness work together to i ...
... • Image Sharpness is critical for good quality radiography. Image Sharpness values less than 5.0 results in blurry images reducing the visibility of trabeculations and making subtle lesions difficult to visualize. • Low Density, Density Difference, Mid-density, and Image Sharpness work together to i ...
Optimal Tube Potential in Pediatric CT for Radiation
... Noise as a function of dose was determined using nine acrylic phantoms (diameter range: 8.7 to 26 cm) at 80, 100, and 120 kV. The lowest acceptable doses at 120 kV (from Step 1) were converted to noise-matched dose values at 80 kV and 100 kV for each phantom size. The attenuation of each phantom was ...
... Noise as a function of dose was determined using nine acrylic phantoms (diameter range: 8.7 to 26 cm) at 80, 100, and 120 kV. The lowest acceptable doses at 120 kV (from Step 1) were converted to noise-matched dose values at 80 kV and 100 kV for each phantom size. The attenuation of each phantom was ...
All patients will receive both EBRT and BT. Summation of EBRT and
... All patients will receive both EBRT and BT. Summation of EBRT and BT doses will be performed by calculation of a biologically equivalent dose in 2 Gy per fraction (EQD2) using the linear quadratic model with α/β = 10 Gy for tumour effects and α/β=3 Gy for late normal tissue damage.The repair half ti ...
... All patients will receive both EBRT and BT. Summation of EBRT and BT doses will be performed by calculation of a biologically equivalent dose in 2 Gy per fraction (EQD2) using the linear quadratic model with α/β = 10 Gy for tumour effects and α/β=3 Gy for late normal tissue damage.The repair half ti ...
Diversity of Cortical and Subcortical MS Pathology/Lesions
... MRI is well established as the imaging modality of choice for the diagnosis of MS and its response to therapy. The improvements in sensitivity and spatial resolution that have accrued with increasing field strengths, up to the current clinical standard of 3T, have provided corresponding improvements ...
... MRI is well established as the imaging modality of choice for the diagnosis of MS and its response to therapy. The improvements in sensitivity and spatial resolution that have accrued with increasing field strengths, up to the current clinical standard of 3T, have provided corresponding improvements ...
LITHUANIA (Kaunas)
... Characteristics of X-rays (X-ray production, scatter, attenuation and physical effects) Dimitris Katsifarakis Following this session participants will: understand the physical parameters of the X ray beam: Penetrability, intensity and the factors affecting them. understand the mechanisms related ...
... Characteristics of X-rays (X-ray production, scatter, attenuation and physical effects) Dimitris Katsifarakis Following this session participants will: understand the physical parameters of the X ray beam: Penetrability, intensity and the factors affecting them. understand the mechanisms related ...
SUBJECT: Radiation Safety in Pediatric Imaging Radiation Safety in
... during their lifetime. The web site “Image Gently” has offered advice and recommendations to help lower the radiation dose to the Pediatric patient. I have forwarded this web site to all of our staff, our physicist, and the Pediatricians. I recommend that you review this site. As the Director of Ped ...
... during their lifetime. The web site “Image Gently” has offered advice and recommendations to help lower the radiation dose to the Pediatric patient. I have forwarded this web site to all of our staff, our physicist, and the Pediatricians. I recommend that you review this site. As the Director of Ped ...
Neutron capture therapy of cancer
Neutron capture therapy (NCT) is a noninvasive therapeutic modality for treating locally invasive malignant tumors such as primary brain tumors and recurrent head and neck cancer. It is a two step procedure: first, the patient is injected with a tumor localizing drug containing a non-radioactive isotope that has a high propensity or cross section (σ) to capture slow neutrons. The cross section of the capture agent is many times greater than that of the other elements present in tissues such as hydrogen, oxygen, and nitrogen. In the second step, the patient is radiated with epithermal neutrons, which after losing energy as they penetrate tissue, are absorbed by the capture agent which subsequently emits high-energy charged particles, thereby resulting in a biologically destructive nuclear reaction (Fig.1).All of the clinical experience to date with NCT is with the non-radioactive isotope boron-10, and this is known as boron neutron capture therapy (BNCT). At this time, the use of other non-radioactive isotopes, such as gadolinium, has been limited, and to date, it has not been used clinically. BNCT has been evaluated clinically as an alternative to conventional radiation therapy for the treatment of malignant brain tumors (gliomas), and more recently, recurrent, locally advanced head and neck cancer.