Detailed Program - 5th MR in RT Symposium
... Scientific Session 1: MRI Planning & Workflow Reversing the Treatment Planning Workflow of MRI-assisted Radiotherapy to the Neck using 3D anatomy Surface Printing: A Proof of Concept Clinical workflow for MR-only simulation and planning in prostate Geometric and dosimetric evaluation of three atlas- ...
... Scientific Session 1: MRI Planning & Workflow Reversing the Treatment Planning Workflow of MRI-assisted Radiotherapy to the Neck using 3D anatomy Surface Printing: A Proof of Concept Clinical workflow for MR-only simulation and planning in prostate Geometric and dosimetric evaluation of three atlas- ...
Three-Dimensional Assessment of Left Ventricular Systolic Strain in
... k-space version of the spatial modulation of magnetization tagging sequence was used to create a tag grid on the images, with a spacing of 8 mm and width of ⬃1 mm, immediately after the R-wave trigger. View sharing was used to reconstruct 11 to 23 time frames per cardiac cycle, depending on the hear ...
... k-space version of the spatial modulation of magnetization tagging sequence was used to create a tag grid on the images, with a spacing of 8 mm and width of ⬃1 mm, immediately after the R-wave trigger. View sharing was used to reconstruct 11 to 23 time frames per cardiac cycle, depending on the hear ...
79252 SocThoracic - Society of Thoracic Radiology
... and characterized on HRCT. Understanding of its anatomy and the distribution of pathology within the lobule will enhance the diagnostic acumen of the radiologist and help narrow an otherwise broad differential diagnosis of lung pathology. ...
... and characterized on HRCT. Understanding of its anatomy and the distribution of pathology within the lobule will enhance the diagnostic acumen of the radiologist and help narrow an otherwise broad differential diagnosis of lung pathology. ...
Cardiac MR in clinical routine: the evolving role
... heart disease [1]. The Division of Imaging Sciences now comprises a clinical service and a research department involved in the development of new imaging technologies and their transfer into clinical application. One of the major achievements of this thriving department was the introduction of MR gu ...
... heart disease [1]. The Division of Imaging Sciences now comprises a clinical service and a research department involved in the development of new imaging technologies and their transfer into clinical application. One of the major achievements of this thriving department was the introduction of MR gu ...
MRI Based Approach to Metabolic Disorders in
... • Malignant neoplasms such as medulloblastoma, ATRT, ependymoma account for 50% of posterior fossa/infratentorial pediatric brain tumors. • Approximately 50% of these patients will have leptomeningeal spread at time of presentation. • Initial treatment options include Surgery, Craniospinal Radiation ...
... • Malignant neoplasms such as medulloblastoma, ATRT, ependymoma account for 50% of posterior fossa/infratentorial pediatric brain tumors. • Approximately 50% of these patients will have leptomeningeal spread at time of presentation. • Initial treatment options include Surgery, Craniospinal Radiation ...
Integrated cardiovascular imaging.
... • Echocardiography is recommended as the first line technique in patients with suspected pericardial disease • CT and/or CMR are recommended as second level testing for diagnostic work-up in pericardial diseases ...
... • Echocardiography is recommended as the first line technique in patients with suspected pericardial disease • CT and/or CMR are recommended as second level testing for diagnostic work-up in pericardial diseases ...
Diagnostic Reference Levels (DRLs) in projection radiography
... First, the local tube output KL of the unit was calculated by measuring the ESDTable, using the equation (1). Thereafter, using the equation (2), the ESD was calculated for standard patients by applying the calculated local tube output, the used exposition parameters tube voltage, tube current and f ...
... First, the local tube output KL of the unit was calculated by measuring the ESDTable, using the equation (1). Thereafter, using the equation (2), the ESD was calculated for standard patients by applying the calculated local tube output, the used exposition parameters tube voltage, tube current and f ...
Cone Beam Computed Tomography in Endodontics: An Overview.
... diagnosing periapical disease in 36 patients and it showed that CBCT provided additional informations which was not found in periapical radiograph [20]. Starropoulos and wenzel studied the efficiency between the CBCT and intraoral digital and conventional radiograph in periapical defects in pig jaw ...
... diagnosing periapical disease in 36 patients and it showed that CBCT provided additional informations which was not found in periapical radiograph [20]. Starropoulos and wenzel studied the efficiency between the CBCT and intraoral digital and conventional radiograph in periapical defects in pig jaw ...
FDA-approved radiopharmaceuticals
... This is a current list of all FDA-approved radiopharmaceuticals. Nuclear medicine practitioners that receive radiopharmaceuticals that originate from sources other than the manufacturers listed in these tables may be using unapproved copies. ...
... This is a current list of all FDA-approved radiopharmaceuticals. Nuclear medicine practitioners that receive radiopharmaceuticals that originate from sources other than the manufacturers listed in these tables may be using unapproved copies. ...
Stereotactic Radiosurgery - State of the Art Technology and Implementation: Quality
... dimensions are less than the range of the secondary electrons, results in a rapid decrease in output factor. A small detector, ≤ 1 mm in area, is required for small field dosimetry. In contrast, small photon beams do exhibit a build-up region, and while Dmax does shift slightly, it is not a complica ...
... dimensions are less than the range of the secondary electrons, results in a rapid decrease in output factor. A small detector, ≤ 1 mm in area, is required for small field dosimetry. In contrast, small photon beams do exhibit a build-up region, and while Dmax does shift slightly, it is not a complica ...
Dose Reduction options in Cardiac CT
... Reduction in dose, and thus cancer induction risk to the breast, is such that clinicians should consider shields for all female CTA patients ...
... Reduction in dose, and thus cancer induction risk to the breast, is such that clinicians should consider shields for all female CTA patients ...
Slate_gray covers.indd - American Society for Radiation Oncology
... personnel, equipment and quality assurance and has been an invaluable guide for department chairs and practice leaders. Twenty years have elapsed since the last edition was published and during that time the world of radiation oncology has changed beyond measure. These two decades have seen an unpre ...
... personnel, equipment and quality assurance and has been an invaluable guide for department chairs and practice leaders. Twenty years have elapsed since the last edition was published and during that time the world of radiation oncology has changed beyond measure. These two decades have seen an unpre ...
Diffusion Tensor Magnetic Resonance Imaging and Fiber
... 4 diffusion parameters commonly used to investigate tissue microstructural properties are 1) FA, which is high when water molecules move predominantly in 1 direction, 2) MD, which is the average of all eigenvalues (overall amount of diffusion), 3) AD, which is equal to the largest eigenvalue and 4) ...
... 4 diffusion parameters commonly used to investigate tissue microstructural properties are 1) FA, which is high when water molecules move predominantly in 1 direction, 2) MD, which is the average of all eigenvalues (overall amount of diffusion), 3) AD, which is equal to the largest eigenvalue and 4) ...
Low dose CT of the lumbar spine has better image quality than
... However, is possible to perform CT at much lower dose settings than with standard CT, at the expense of increased image noise and reduced image quality; it can even be done using the same relatively low radiation dose as lumbar spine radiography (7). The current study was performed to evaluate and c ...
... However, is possible to perform CT at much lower dose settings than with standard CT, at the expense of increased image noise and reduced image quality; it can even be done using the same relatively low radiation dose as lumbar spine radiography (7). The current study was performed to evaluate and c ...
- BIR Publications
... was closer to 4 mm. This was because, whenever systematic uncertainties were revealed to be 4 mm, the patient’s set-up was routinely corrected at the clinician’s discretion. Therefore, an action level of 4 mm with a corresponding standard deviation of 4 mm/!3 for the top hat distribution function wa ...
... was closer to 4 mm. This was because, whenever systematic uncertainties were revealed to be 4 mm, the patient’s set-up was routinely corrected at the clinician’s discretion. Therefore, an action level of 4 mm with a corresponding standard deviation of 4 mm/!3 for the top hat distribution function wa ...
Web-based system for Quality Assurance of Radiation Oncology
... I would like to start by thanking my supervisor Dr. François DeBlois for his invaluable support throughout my thesis. His guidance and encouragement at all stages of this project made it a wonderful experience. I would like to acknowledge Dr. Gabriela Stroian for the many hours spent carefully discu ...
... I would like to start by thanking my supervisor Dr. François DeBlois for his invaluable support throughout my thesis. His guidance and encouragement at all stages of this project made it a wonderful experience. I would like to acknowledge Dr. Gabriela Stroian for the many hours spent carefully discu ...
Magnetic Resonance Imaging (MRI/RAD)
... appearance of anatomy but includes correlation with anatomical drawings and CT anatomy. Department permission required. Prerequisite: MRI 111. MRI 130. MRI Imaging Procedures and Diagnosis. 2 Credits. Correlates and compares the normal appearance of anatomy in all body sections with pathologic findi ...
... appearance of anatomy but includes correlation with anatomical drawings and CT anatomy. Department permission required. Prerequisite: MRI 111. MRI 130. MRI Imaging Procedures and Diagnosis. 2 Credits. Correlates and compares the normal appearance of anatomy in all body sections with pathologic findi ...
Clinical Dose Optimization Service™
... Does a dose monitoring program satisfy the Joint Commission? Dose monitoring programs are helpful, but not sufficient to meet Joint Commission requirements. They collect patient dose indices, support automated alerting for cases that fall outside expected dose ranges, and provide reporting to assist ...
... Does a dose monitoring program satisfy the Joint Commission? Dose monitoring programs are helpful, but not sufficient to meet Joint Commission requirements. They collect patient dose indices, support automated alerting for cases that fall outside expected dose ranges, and provide reporting to assist ...
Extracting respiratory signals from thoracic cone beam CT
... Respiration-induced motion is of great concern in image-guided radiotherapy (IGRT) when treating tumors in lung or upper abdomen area. To provide reliable imaging guidance for treatment, 4D-CBCT has been developed, where all the projections are first sorted into breathing phase bins and then CBCT im ...
... Respiration-induced motion is of great concern in image-guided radiotherapy (IGRT) when treating tumors in lung or upper abdomen area. To provide reliable imaging guidance for treatment, 4D-CBCT has been developed, where all the projections are first sorted into breathing phase bins and then CBCT im ...
III. Profile Details - QIBA Wiki
... [[Proposed expansion of discussion by Neil: The use of intravenous contrast media in assessing tumor boundaries and ultimately the change during the treatment is critical. Contrast administration and timing parameters influence the appearance, conspicuity, and quantification of tumor volumes. Non-co ...
... [[Proposed expansion of discussion by Neil: The use of intravenous contrast media in assessing tumor boundaries and ultimately the change during the treatment is critical. Contrast administration and timing parameters influence the appearance, conspicuity, and quantification of tumor volumes. Non-co ...
AAPM/RSNA Physics Tutorial for Residents: Topics in CT
... This article describes basic radiation dose concepts as well as those specifically developed to describe the radiation dose from computed tomography (CT). Basic concepts of radiation dose are reviewed, including exposure, absorbed dose, and effective dose. Radiation dose from CT demonstrates variati ...
... This article describes basic radiation dose concepts as well as those specifically developed to describe the radiation dose from computed tomography (CT). Basic concepts of radiation dose are reviewed, including exposure, absorbed dose, and effective dose. Radiation dose from CT demonstrates variati ...
The Role of Dynamic Contrast Enhanced Magnetic
... Objective: To show the magnetic resonance imaging characteristics of soft tissue masses, and to evaluate the aid of contrast-enhanced static and dynamic magnetic resonance imaging for the differentiation of benign and malignant lesions. Methods: A total of 35 soft tissue masses (16 benign and 19 mal ...
... Objective: To show the magnetic resonance imaging characteristics of soft tissue masses, and to evaluate the aid of contrast-enhanced static and dynamic magnetic resonance imaging for the differentiation of benign and malignant lesions. Methods: A total of 35 soft tissue masses (16 benign and 19 mal ...
Retinal nerve fiber layer thickness measured by optical coherence
... comes from critical advances in imaging technology –including structural (CT, MRI), and functional neuroimaging (PET) methods– all of which provide an unprecedented view of neuroanatomical structures, in vivo41,44,45. Nevertheless, there are many difficulties in measuring brain volumes of patients w ...
... comes from critical advances in imaging technology –including structural (CT, MRI), and functional neuroimaging (PET) methods– all of which provide an unprecedented view of neuroanatomical structures, in vivo41,44,45. Nevertheless, there are many difficulties in measuring brain volumes of patients w ...
Medical Radioisotopes Production Without A Nuclear Reactor
... innovative new imaging modalities and radiopharmaceuticals has improved the ability to study biological structures and functions in health and disease, and continues to contribute to the evolution of medical care. Besides the routine use of X-rays, the most common imaging techniques in current clini ...
... innovative new imaging modalities and radiopharmaceuticals has improved the ability to study biological structures and functions in health and disease, and continues to contribute to the evolution of medical care. Besides the routine use of X-rays, the most common imaging techniques in current clini ...
Walter et al. (2007) Radiotherapy and Oncology 85
... Frank Lohr, Frederik Wenz Department of Radiation Oncology, University of Heidelberg, Mannheim, Germany ...
... Frank Lohr, Frederik Wenz Department of Radiation Oncology, University of Heidelberg, Mannheim, Germany ...
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.