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Medical Physics: Some Recollections in Diagnostic X
Medical Physics: Some Recollections in Diagnostic X

... available today, off-focus radiation is addressed by means of better x-ray tube design and lead apertures that eliminate most of this problem. In fact, most medical physicists today do not attempt to quantify off-focus radiation. Since the early 1970s, notable technologic changes in imaging have occ ...
Slide 1
Slide 1

...  Iteration is process of successively better “guesses”  The image processing computer creates an image by refining the expected projections in comparison to those recorded  This form of IR is known as “Maximum Likelyhood Expectation Maximisation” (MLEM) ...
dicom, hl7, ris, pacs
dicom, hl7, ris, pacs

... DICOM — Digital Imaging and Communications in Medicine — is the international standard for medical images and related information (ISO 12052). It defines the formats for medical images that can be exchanged with the data and quality necessary for clinical use. DICOM is implemented in almost ever ...
The Latest Spin on MR Imaging
The Latest Spin on MR Imaging

... opportunities may be available. To learn more about this “MRI Fellowship” Educational Program for Imaging Technologists, please visit following program website www.radiology.osu.edu/10990.cfm and/or contact: Ashok Saraswat, M.S., B. Ed., R.T. (MR) (R) MRI Educational Program Director ...
Treadmill Exercise Stress Echocardiography Procedure
Treadmill Exercise Stress Echocardiography Procedure

...  Use tissue harmonics (reduces near field artifact, improves resolution, enhances myocardium, and improves endocardial border definition).  Decide early in the process the need for a contrast agent, used with each acquisition.  The sonographer acquires digital loops of the imaging views Apical 4c ...
We`ve seen your wish list.
We`ve seen your wish list.

... We’ve seen your wish list. That’s why we developed V3D, an affordable, technologically superior 2-D and 3-D multi-modality visualization system. The Viatronix V3D system is a powerful 2-D and 3-D imaging workstation that provides the highest quality in visualization, speed and user friendliness. Our ...
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... [email protected] ...
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Medical Imaging of the Future: Consequences for Patient and

... for the implications from different angles of view and to develop an opinion through the expert lectures and discussion with peers. This Symposium precedes an inaugural lecture at the end of the last day of this 2 day Symposium, of a new full professor at the Medical Imaging Center UMCG, Prof.dr. J. ...
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... number of its projections (different angles) Has been widely used in many fields Images of the body can be reconstructed from a large number of projections from diff. locations ...
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... Up to 256 slices over a full 500mm FOV for faster and more complete whole body imaging. Improved patient compliance and image quality through faster rotation times and less susceptibility to motion artifacts with sub-millimeter image quality for visualization of subtle abnormalities. Rotation speed ...
Electromagnetic Radiation Spectrum
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20141201124090

... • You are exposed to nuclear radiation every day, most of it is background radiation, or nuclear radiation that occurs naturally in the ...
Computed Tomography Machines
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... been performed. We also extend our deepest gratitude to the vice-chancellor for research at Mashhad University of Medical Sciences for funding this research. This manuscript was based on the data extracted from an M.Sc. dissertation (code No.: A-276), presented to the Medical Physics Department, Fac ...
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... – Technologist – Radiographer – Technician (Limited Licensure) – Specializing in the use of x-rays to create3 images of the body including the skeletal system,chest and abdomen ...
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... The adoption of digital imaging has been swift and recent. The greatest advantage of digital imaging is the ability to manipulate contrast, zoom in on areas of interest, make measurements, and transfer them via the Internet for consultation. However, for optimal benefit, this adoption requires more ...
Purpose: To use diffusion tensor imaging (DTI) to visualize
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... reference (TR/TE, 641/10; flip angle 90 degrees; field of view, 128 mm; number of signal averages(NSA) of 2. Next, single-shot spin-echo echo-planar DTI sequences were performed with parameters: TR/TE, 5300/69; flip angle 90 degrees; field of view 16 cm; matrix size 128 x 128; 2 NSA ; slice thicknes ...
ACR White Paper on Radiation Dose in Medicine
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... patient care and greatly exceed the associated risks. The development of remarkable equipment such as multidetector row CT and the increased utilization of x-ray and nuclear medicine imaging studies have transformed the practice of medicine as imaging studies increasingly replace more invasive, and ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
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... staging patients with Dukes stage D lesions, which may lead to changes in surgical planning or preoperative management. Positive predictive value rates have been reported at 100 percent for CT staging of Dukes D lesions.(3) Frequently, however, CT may under stage patients with microinvasion of peric ...
Medical Imaging of the Future: Consequences for
Medical Imaging of the Future: Consequences for

... Consequences for Patient and Professional’ to be held in Groningen, the Netherlands, on September 14th and 15th, 2015. Medical imaging is rapidly changing and will continue to do so for the forthcoming years, with consequent major implications in teaching and training. Hence, during the symposium we ...
The American Society for Radiation Oncology`s 2010 Core
The American Society for Radiation Oncology`s 2010 Core

... to different year residents. The total classroom time ranges widely from program to program (24–118 h). Such lack of consistency clearly demonstrates varying emphases in and commitment to physics teaching in training programs across the country. Inadequate classroom time can be detrimental to the ed ...
Medical Radiography (MRAD) Applicant Hospital/Imaging Clinic Job Shadow Form
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... different, so be prepared for a variety of options. The goal is that you are in the Imaging Area and experiencing patients and exams performed during a routine day. Another way to put this is you would be seeing first-hand what goes on in the Imaging Area on a day-to-day basis. Again, you are not re ...
Beam Restricting Devices
Beam Restricting Devices

... When operating properly, they leave a small unexposed area on all four borders of the film. State regulations allows the collimation to fall within plus or minus 2% of the SID. Can be overridden by the radiographer. Assure that area exposed does not exceed image receptor size. ...
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Image-guided radiation therapy

Image-guided radiation therapy (IGRT) is the process of frequent two and three-dimensional imaging, during a course of radiation treatment, used to direct radiation therapy utilizing the imaging coordinates of the actual radiation treatment plan. The patient is localized in the treatment room in the same position as planned from the reference imaging dataset. An example of IGRT would include localization of a cone beam computed tomography (CBCT) dataset with the planning computed tomography (CT) dataset from planning. IGRT would also include matching planar kilovoltage (kV) radiographs or megavoltage (MV) images with digital reconstructed radiographs (DRRs) from the planning CT. These two methods comprise the bulk of IGRT strategies currently employed circa 2013.This process is distinct from the use of imaging to delineate targets and organs in the planning process of radiation therapy. However, there is clearly a connection between the imaging processes as IGRT relies directly on the imaging modalities from planning as the reference coordinates for localizing the patient. The variety of medical imaging technologies used in planning includes x-ray computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) among others. The precision of IGRT is significantly improved when N-localizer technology is used in conjunction with these medical imaging technologies. Through advancements in imaging technology, combined with a further understanding of human biology at the molecular level, the impact of IGRT on radiotherapy treatment continues to evolve.
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