PDF - Medical Journal of Australia
... using radioactive sources in a process which increases the duration of the scan by about 30%. Furthermore, as PET images contain limited anatomical information, physiological uptake into the heart, skeletal muscle and gut can cause diagnostic dilemmas. Increased uptake in inflammatory and other non- ...
... using radioactive sources in a process which increases the duration of the scan by about 30%. Furthermore, as PET images contain limited anatomical information, physiological uptake into the heart, skeletal muscle and gut can cause diagnostic dilemmas. Increased uptake in inflammatory and other non- ...
Optimizing radiation dose by varying age at pediatric temporal bone
... relationship between our expected image noise level at 201.01 HU and second-step data. In addition, the image quality was diagnostically acceptable even though the tube current–time product was changed. Radiation dose reduction is a key concern in pediatric CT studies.(9,12-14) In addition, in the o ...
... relationship between our expected image noise level at 201.01 HU and second-step data. In addition, the image quality was diagnostically acceptable even though the tube current–time product was changed. Radiation dose reduction is a key concern in pediatric CT studies.(9,12-14) In addition, in the o ...
The benefits of Combined PET/CT and PET/MRI
... Based on initial findings, physicians foresee the first routine applications in tumor delineation and characterization. PET/MR’s ability to detect small lesions in soft-tissue is promising for diagnosis and treatment of a wide range of cancers, including those of the head and neck, the liver, lung, ...
... Based on initial findings, physicians foresee the first routine applications in tumor delineation and characterization. PET/MR’s ability to detect small lesions in soft-tissue is promising for diagnosis and treatment of a wide range of cancers, including those of the head and neck, the liver, lung, ...
Distributed source x-ray tube technology for
... from tube arcing. Right: relative cathode current and relative gate voltage. Both graphs show the same time window. HV arcing does not degenerate the field emitters. ...
... from tube arcing. Right: relative cathode current and relative gate voltage. Both graphs show the same time window. HV arcing does not degenerate the field emitters. ...
Medical Imaging Research - Dartmouth
... with angiogenesis as well as with resistance to radiotherapy and chemotherapy; accurate assessment of changes in tumor pO2 can be used in cancer detection and staging, and in monitoring of therapeutic efficacy. Other types of vascular pathology are also associated with decreased tissue-oxygen level ...
... with angiogenesis as well as with resistance to radiotherapy and chemotherapy; accurate assessment of changes in tumor pO2 can be used in cancer detection and staging, and in monitoring of therapeutic efficacy. Other types of vascular pathology are also associated with decreased tissue-oxygen level ...
Diagnostic reference levels as a quality assurance tool
... The overall aim of DRL are to better manage patient dose in diagnostic radiology using the principle of optimisation which is defined as exposure to radiation from justified activities should be kept as low as reasonably achievable, social and economic factors being taken into account. The European ...
... The overall aim of DRL are to better manage patient dose in diagnostic radiology using the principle of optimisation which is defined as exposure to radiation from justified activities should be kept as low as reasonably achievable, social and economic factors being taken into account. The European ...
Full Text - Diagnostic and Interventional Radiology
... in publications discussing the topic in nonradiological journals (5, 6). While there is an ongoing debate in the medical community about the accuracy of the risk models utilized to estimate cancer risks, the radiological community agreed that efforts to reduce the radiation dose of children and adul ...
... in publications discussing the topic in nonradiological journals (5, 6). While there is an ongoing debate in the medical community about the accuracy of the risk models utilized to estimate cancer risks, the radiological community agreed that efforts to reduce the radiation dose of children and adul ...
Image Quality and Dose Comparison between
... Siemens spiral CT – kV 120, mAs 84 current UNCH Protocol for sinus imaging/surgical planning ...
... Siemens spiral CT – kV 120, mAs 84 current UNCH Protocol for sinus imaging/surgical planning ...
Imaging Findings of Bisphosphonate
... Objectives. This paper offers a critical review of published information on the imaging strategies used for diagnosing bisphosphonate-associated osteonecrosis of the jaw (BRONJ) in patients taking intravenous bisphosphonates, pointing at the different methodologies and results of existing literature ...
... Objectives. This paper offers a critical review of published information on the imaging strategies used for diagnosing bisphosphonate-associated osteonecrosis of the jaw (BRONJ) in patients taking intravenous bisphosphonates, pointing at the different methodologies and results of existing literature ...
WHITE PAPER FINAL on August 13, 2010 Title: Proposed
... knowledge of targeted molecular probes used for metabolic imaging or receptor-based imaging, in addition to the use of standard, clinically approved imaging agents (i.e., non-targeted PET tracers, freely diffusible magnetic resonance or computed tomography contrast agents) and methods to quantify ti ...
... knowledge of targeted molecular probes used for metabolic imaging or receptor-based imaging, in addition to the use of standard, clinically approved imaging agents (i.e., non-targeted PET tracers, freely diffusible magnetic resonance or computed tomography contrast agents) and methods to quantify ti ...
Swept-Source OCT: A new manner to study retina and choroid
... layers of the eye, such as the choroid and sclera. This new technology allows for better resolution imaging when studying chorioretinal diseases as a result of the longer wavelength employed [around 1050 nm, compared to 800 nm used in previous technologies, such as time-domain or spectral‑domain (SD ...
... layers of the eye, such as the choroid and sclera. This new technology allows for better resolution imaging when studying chorioretinal diseases as a result of the longer wavelength employed [around 1050 nm, compared to 800 nm used in previous technologies, such as time-domain or spectral‑domain (SD ...
Intervention Conceptual example of the “fusion map”
... • MediGuide™ Technology – Location of device-based sensors in 3D space using a low-powered electromagnetic field – Overlay MediGuide Enabled™ devices on the corresponding pre-obtained image • Reduction of the duration of live X-ray during a procedure ...
... • MediGuide™ Technology – Location of device-based sensors in 3D space using a low-powered electromagnetic field – Overlay MediGuide Enabled™ devices on the corresponding pre-obtained image • Reduction of the duration of live X-ray during a procedure ...
THE ROLE OF THE CLINICAL MEDICAL PHYSICIST IN
... Staffing for Diagnostic Radiology” provides information regarding clinical medical physics staffing levels in diagnostic imaging[2]. Additional details are provided in AAPM Report No. 33 entitled “Staffing Levels and Responsibilities of Physicists in Diagnostic Radiology”[3]. These levels should be ...
... Staffing for Diagnostic Radiology” provides information regarding clinical medical physics staffing levels in diagnostic imaging[2]. Additional details are provided in AAPM Report No. 33 entitled “Staffing Levels and Responsibilities of Physicists in Diagnostic Radiology”[3]. These levels should be ...
Evolution of CT scanners
... – Finite number of x-ray photons are transmitted (i.e. in a slice) – Thinner slices Less x-ray photons larger variation in pixel values more noise – mA then has to be increased to provide useful diagnostic images – linear relationship between mA and patient dose ...
... – Finite number of x-ray photons are transmitted (i.e. in a slice) – Thinner slices Less x-ray photons larger variation in pixel values more noise – mA then has to be increased to provide useful diagnostic images – linear relationship between mA and patient dose ...
Nuclear medicine
Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease. Nuclear medicine scans are usually conducted by radiographers. Nuclear medicine, in a sense, is ""radiology done inside out"" or ""endoradiology"" because it records radiation emitting from within the body rather than radiation that is generated by external sources like X-rays.