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Fluid-attenuated inversion- recovery MR sequence in the - CEON-a
Fluid-attenuated inversion- recovery MR sequence in the - CEON-a

... slow growing and patients survive much longer than those with high-grade gliomas do. According to the World Health Organization scheme, these tumors are grades I and II based on the histopathologic evaluation of surgical specimens. Therapeutic approaches for these tumors differ considerably accordin ...
A Pregnant Woman with Acute Massive Pulmonary Embolism
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... in patients with unstable hemodynamic status, thrombolytic agents, surgery and catheter embolectomy are suggested. 5 However, anticoagulant medications or thrombolytic agents such as warfarin, heparin, low molecular weight heparin, and tissue plasminogen activator are not all suitable for pregnancy. ...
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... Product Innovation Award 2006 Frost & Sullivan, a renowned European analyst and consulting house, honoured Ziehm Imaging`s pioneering mobile C-arm “Ziehm Vision FD” with the “Frost & Sullivan Product Innovation Award 2006” on September 18, 2006. The system features a groundbreaking digital flat-pane ...
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Conceptual Design of a Proton Computed

... electron density resolution, the energy should be stable to within 0.1% or 0.25 MeV for a proton energy of 250 MeV. The spatial and electron density resolutions of a pCT scanner are physically limited by multiple Coulomb scattering (MCS) and energy loss straggling. The spatial and energy uncertainti ...
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Geometric Accuracy of 3-D X-Ray Image
Geometric Accuracy of 3-D X-Ray Image

... Abstract. Image guided interventions often involve C-arm X-ray imaging systems. State-of-the art fluoroscopy systems not only offer 2-D Xray imaging, but they can also be used to obtain 3-D cone-beam tomographic data sets. These 3-D volumetric images can be used for image guidance and device navigatio ...
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MRI SureScan® Pacing System
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Medical X-ray Facility License Application Form

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... sometimes missed on CT and MRI because they have lower temporal resolution 6 Differences in late porto-venous phase due to diffusion of CT and MRI contrast agents into tumour interstitium which may conceal wash out is also overcome with the use of CEUS 6 In patients typically women on hormonal thera ...
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... volume of x-ray–based images, generally reconstructed as two-dimensional (2D) or threedimensional (3D) pictures of inside the body. These images can be rotated and viewed from any angle. Each CT image is effectively a single “slice” of anatomy. Diagnostic Imaging: Diagnostic imaging uses technologie ...
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SNM Practice Guideline for Lung Scintigraphy 4.0

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Image-Guided Surgery
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... The goal of this application is to assess the feasibility of device navigation with electromagnetic tracking through a phantom study. We will provide an image overlay of an electromagnetically tracked guidewire as it is moved through the vasculature. The user interface will be similar to the example ...
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An Introduction to Fluoroscopy Safety
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... for many reasons, including these three major factors: The skin may be closer or farther from the x-ray source than is the reference point. Cumulative air kerma sums the dose for the entire procedure as if the fluoroscope was stationary and directed at a single skin field, when in fact most procedur ...
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... Radio-nuclides are widely used in medicine for imaging and radiotherapy applications. For imaging, β + decaying nuclides are of special interest since the simultaneous emission of acolinear annihilation photons can be exploited to detect the localization of the spatial position of the activity. Cont ...
Picture Archiving and Communication System
Picture Archiving and Communication System

...  Dr. Harold Glass secured UK government funding in the early 1990s and managed the project over many years. This transformed Hammersmith Hospital in London as the first filmless hospital in the UK  The first large-scale PACS installation was in 1982 at the University of Kansas, but became more of ...
ATLASSOM
ATLASSOM

... to the differential diagnosis of these diseases. Drs. Atlas and Som will also review pertinent normal anatomy, physiology, pathophysiology, and imaging concepts. The emphasis will be on a clinically oriented imaging approach that helps refine differential diagnosis. This is a unique experience for r ...
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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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