Computer-aided diagnostic for interstitial lung
... The methods for building the image–based diagnostic aid tool are constituted by several connected subtasks. A first step was to specify the scope of the diagnostic aid tool, determined by the selected subset of interstitial lung diseases included in the study. In collaboration with the pneumology an ...
... The methods for building the image–based diagnostic aid tool are constituted by several connected subtasks. A first step was to specify the scope of the diagnostic aid tool, determined by the selected subset of interstitial lung diseases included in the study. In collaboration with the pneumology an ...
Interventional Radiology 2013 - Angio CT Studies Update (PDF:1.60
... into the tumor and accumulated there despite the artery being blocked with the inflated balloon. We investigated further using Angio CT images under the infusion of contrast media via the micro-balloon catheter, and compared images of tissue enhancement with and without balloon occlusion (Fig. 3). T ...
... into the tumor and accumulated there despite the artery being blocked with the inflated balloon. We investigated further using Angio CT images under the infusion of contrast media via the micro-balloon catheter, and compared images of tissue enhancement with and without balloon occlusion (Fig. 3). T ...
Commissioning of linear accelerators: From acceptance to first
... Phys 37: 2010)…..Algorithms accounting for 3D scatter (e.g. convolution/superposition, Monte Carlo) perform adequately in most situations, including (in many cases) under circumstances where there is a loss of e’ equilibrium such as lung/tissue interface or tumor margin in lung medium. Pencil beam a ...
... Phys 37: 2010)…..Algorithms accounting for 3D scatter (e.g. convolution/superposition, Monte Carlo) perform adequately in most situations, including (in many cases) under circumstances where there is a loss of e’ equilibrium such as lung/tissue interface or tumor margin in lung medium. Pencil beam a ...
CMR Viability
... revascularization would not be predicted to improve his left ventricular systolic function. Because he was otherwise a good operative candidate, further evaluation of viability was pursued ...
... revascularization would not be predicted to improve his left ventricular systolic function. Because he was otherwise a good operative candidate, further evaluation of viability was pursued ...
Innovations in Cardiac Computed Tomography: Cone
... scanners. Static organs can be imaged in one second, the lung in two seconds, the heart and coronary arteries in fewer than five seconds, and a whole body scan in less than 10 seconds.3,15 The quicker imaging process is more comfortable for patients because it requires shorter breath-holds, can be e ...
... scanners. Static organs can be imaged in one second, the lung in two seconds, the heart and coronary arteries in fewer than five seconds, and a whole body scan in less than 10 seconds.3,15 The quicker imaging process is more comfortable for patients because it requires shorter breath-holds, can be e ...
See it! Trust it! Treat it!
... The type of …fiducial marker that we are employing has several advantages. One is the flexibility of the coiled marker. The other is the length. Together these characteristics allow ease of radial placement. We feel the coiled design lessens potential for migration. ...
... The type of …fiducial marker that we are employing has several advantages. One is the flexibility of the coiled marker. The other is the length. Together these characteristics allow ease of radial placement. We feel the coiled design lessens potential for migration. ...
Diagnostic Radiology Residents Physics Curriculum 2009
... clinical applications of physics to each modality. Each Module presents its content in three sections: (1) Learning Objectives; (2) Concise Syllabus; and (3) Detailed Syllabus. The first section of each Module presents the learning objectives for the Module. These learning objectives are organized i ...
... clinical applications of physics to each modality. Each Module presents its content in three sections: (1) Learning Objectives; (2) Concise Syllabus; and (3) Detailed Syllabus. The first section of each Module presents the learning objectives for the Module. These learning objectives are organized i ...
Methods of Prospective Investigation of Pulmonary Embolism
... following the US Food and Drug Administration (FDA) alert in June 2006, which indicated that NSF/NFD may occur after exposure to a gadolinium-containing contrast agent.9 As more information about the risks of NSF/NFD was obtained, the protocol of PIOPED III was modified accordingly. The June 2006 FD ...
... following the US Food and Drug Administration (FDA) alert in June 2006, which indicated that NSF/NFD may occur after exposure to a gadolinium-containing contrast agent.9 As more information about the risks of NSF/NFD was obtained, the protocol of PIOPED III was modified accordingly. The June 2006 FD ...
Imaging doses from the Elekta Synergy X
... radiotherapy linear accelerators specifically designed for image guided radiotherapy (IGRT). It has a kilo-voltage X-ray source and opposing amorphous silicon flat panel imager, both mounted at 90˚ to the treatment head for the acquisition of kV X-ray projection images for radiography and fluoroscop ...
... radiotherapy linear accelerators specifically designed for image guided radiotherapy (IGRT). It has a kilo-voltage X-ray source and opposing amorphous silicon flat panel imager, both mounted at 90˚ to the treatment head for the acquisition of kV X-ray projection images for radiography and fluoroscop ...
MRA NECK Dr. Mohamed Samieh MR ANGIOGRAPHY - O6U E
... T2 FSE AXIAL NECK Plan the axial slices on the sagittal and coronal plane axial slices is parallel to intervertebral disk. Slices must be sufficient to cover area from the midbrain to the arch of aorta . Check the positioning block in the other two planes . ...
... T2 FSE AXIAL NECK Plan the axial slices on the sagittal and coronal plane axial slices is parallel to intervertebral disk. Slices must be sufficient to cover area from the midbrain to the arch of aorta . Check the positioning block in the other two planes . ...
Quantitative 4D Transcatheter Intraarterial Perfusion MRI for
... Prior semi-quantitative TRIP-MRI approaches were developed and validated in animal models and translated clinically for intra-procedural perfusion monitoring during TACE procedures in HCC patients [2]. A quantitative 4D TRIP-MRI technique (serial iterative 3D volumetric perfusion imaging), including ...
... Prior semi-quantitative TRIP-MRI approaches were developed and validated in animal models and translated clinically for intra-procedural perfusion monitoring during TACE procedures in HCC patients [2]. A quantitative 4D TRIP-MRI technique (serial iterative 3D volumetric perfusion imaging), including ...
Professional capabilities for medical radiation practice
... knowledge, skills and professional attributes necessary for practice. They have been grouped into domains which identify elements of practice. Domains are not an indication of procedures undertaken by MRP professionals and are not a list of tasks. During any one procedure or treatment, it is expecte ...
... knowledge, skills and professional attributes necessary for practice. They have been grouped into domains which identify elements of practice. Domains are not an indication of procedures undertaken by MRP professionals and are not a list of tasks. During any one procedure or treatment, it is expecte ...
SBRT: AAPM Task Group 101 Report
... Targeting: For SBRT, image-guided localization techniques shall be used to guarantee the spatial accuracy of the delivered dose distribution with a high confidence level. The patient position should be monitored during the entire treatment and any deviations in treatment/target position as assessed ...
... Targeting: For SBRT, image-guided localization techniques shall be used to guarantee the spatial accuracy of the delivered dose distribution with a high confidence level. The patient position should be monitored during the entire treatment and any deviations in treatment/target position as assessed ...
RESEARCH ARTICLE Diagnostic Accuracy of Magnetic Resonance
... Background: Cervical cancer is the third most common gynecological cancer and a widespread malignancy in women, accounting for a large proportion of the cancer burden in developing countries. We compared accuracy of MRI staging with clinical staging and also concordance between the two methods for ...
... Background: Cervical cancer is the third most common gynecological cancer and a widespread malignancy in women, accounting for a large proportion of the cancer burden in developing countries. We compared accuracy of MRI staging with clinical staging and also concordance between the two methods for ...
Journal of Cancer Research & Therapy
... scan limited to the original sites of lymphoma in 1st follow-up (F/U) post-chemotherapy to reduce patient’s radiation exposure and scan time. Patients and methods: FDG PET/CT scans of 100 lymphoma patients were reviewed and the sites of disease in pre-Chemotherapy and the 1st F/U post-chemotherapy s ...
... scan limited to the original sites of lymphoma in 1st follow-up (F/U) post-chemotherapy to reduce patient’s radiation exposure and scan time. Patients and methods: FDG PET/CT scans of 100 lymphoma patients were reviewed and the sites of disease in pre-Chemotherapy and the 1st F/U post-chemotherapy s ...
Cone beam computed tomography practice standard
... its Regulations 1982; the National Radiation Laboratory Code of Safe Practice for the use of X-rays in Dentistry; Section 8 of the Health Practitioners Competence Assurance Act 2003; the Dental Council’s Policy on Advanced and new areas of practice and Informed Consent Practice Standard; and any oth ...
... its Regulations 1982; the National Radiation Laboratory Code of Safe Practice for the use of X-rays in Dentistry; Section 8 of the Health Practitioners Competence Assurance Act 2003; the Dental Council’s Policy on Advanced and new areas of practice and Informed Consent Practice Standard; and any oth ...
QIBA proffered UPICT protocol for solid tumors - QIBA Wiki
... In order to quantify treatment-induced change, the pre-treatment CT scan shall take place prior to any new intervention to treat the disease. This scan is referred to as the “baseline” scan. It should be acquired as closely as possible, but not before, the initiation of treatment, and in no case mor ...
... In order to quantify treatment-induced change, the pre-treatment CT scan shall take place prior to any new intervention to treat the disease. This scan is referred to as the “baseline” scan. It should be acquired as closely as possible, but not before, the initiation of treatment, and in no case mor ...
Nuclear Medicine Imaging in Pediatric Neurology
... with electroencephalogram findings. In pediatric patients with brain tumors, nuclear medicine imaging can be clinically helpful in the diagnosis, directing biopsy, planning therapy, differentiating tumor recurrence from post-treatment sequelae, and assessment of response to therapy. Among other neur ...
... with electroencephalogram findings. In pediatric patients with brain tumors, nuclear medicine imaging can be clinically helpful in the diagnosis, directing biopsy, planning therapy, differentiating tumor recurrence from post-treatment sequelae, and assessment of response to therapy. Among other neur ...
Evaluation of Linear Accelerator Gating with Real
... Feasibility tests were performed to demonstrate linear accelerator gating using positional information from the Calypso system. A standard Calypso quality assurance phantom preloaded with three wireless transponders was placed on a rotating circular motion platform 6 cm from the center of rotation. ...
... Feasibility tests were performed to demonstrate linear accelerator gating using positional information from the Calypso system. A standard Calypso quality assurance phantom preloaded with three wireless transponders was placed on a rotating circular motion platform 6 cm from the center of rotation. ...
CT Scan Parameters and Radiation Dose
... low-fixed-mAs protocol (Fig. 1) [8]. In extremely large or obese patients, there may be a conflict between the specified noise index (or reference mAs) and the maximum allowed mAs because the maximum mAs may not be sufficient to provide diagnostic images. In such cases, the maximum mAs may need to b ...
... low-fixed-mAs protocol (Fig. 1) [8]. In extremely large or obese patients, there may be a conflict between the specified noise index (or reference mAs) and the maximum allowed mAs because the maximum mAs may not be sufficient to provide diagnostic images. In such cases, the maximum mAs may need to b ...
Physics of CT
... scanner is unable to differentiate between a small amount of high-density material (e.g. bone) and a larger amount of other tissue densities (brain). The processor average out the two structures, it raises CT No of pixel & appears higher than it is. It is avoided by thinner slice & smaller pixel ...
... scanner is unable to differentiate between a small amount of high-density material (e.g. bone) and a larger amount of other tissue densities (brain). The processor average out the two structures, it raises CT No of pixel & appears higher than it is. It is avoided by thinner slice & smaller pixel ...
Professional capabilities for medical radiation practice
... skills and professional attributes necessary for practice. They have been grouped into domains which identify elements of practice. Domains are not an indication of procedures undertaken by MRP professionals and are not a list of tasks. During any one procedure or treatment, it is expected practitio ...
... skills and professional attributes necessary for practice. They have been grouped into domains which identify elements of practice. Domains are not an indication of procedures undertaken by MRP professionals and are not a list of tasks. During any one procedure or treatment, it is expected practitio ...
TECHNICAL NOTE Integrated imaging – the complementary roles of
... years. Established scintigraphic techniques for detecting breaches in the blood-brain barrier and liver masses has been replaced by ultrasound, computerised tomography (CT) and magnetic resonance imaging (MRI). Simultaneously, there has been significant growth in the use of positron emission tomogra ...
... years. Established scintigraphic techniques for detecting breaches in the blood-brain barrier and liver masses has been replaced by ultrasound, computerised tomography (CT) and magnetic resonance imaging (MRI). Simultaneously, there has been significant growth in the use of positron emission tomogra ...
Each of the six sections of the written examination objectives is
... Each of the six sections of the written examination objectives is designed to provide an ACVR eligible resident with a framework from which to study. The objectives are not all inclusive but should provide a minimum knowledge base needed to pass the written examination. A candidate must obtain a sco ...
... Each of the six sections of the written examination objectives is designed to provide an ACVR eligible resident with a framework from which to study. The objectives are not all inclusive but should provide a minimum knowledge base needed to pass the written examination. A candidate must obtain a sco ...
PDF - Austin Publishing Group
... legions that were compared (Table 1). In 5 out of the 35 lesions, no fine-tuning was needed since the soft-tissue and tumors were aligned well after the skull based fusions. For 24 lesions, minor mismatch between the soft-tissue and skull based fusions was found. The corresponding mean translational ...
... legions that were compared (Table 1). In 5 out of the 35 lesions, no fine-tuning was needed since the soft-tissue and tumors were aligned well after the skull based fusions. For 24 lesions, minor mismatch between the soft-tissue and skull based fusions was found. The corresponding mean translational ...
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.