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Free PDF - European Review for Medical and
Free PDF - European Review for Medical and

... In patients with mandible fracture accompanied by dysesthesia of the lower lip, panoramic radiographs, and CT show the severe dislocation of the mandible fracture, but it is impossible to know whether the nerve is interrupted, which is very important in designing corrective surgical procedures4-7. M ...
Get PDF - OSA Publishing
Get PDF - OSA Publishing

... light source behind the objects to provide you with a transmission imaging geometry. Glare suppression in principle is possible using time-of-flight methods with the help of fast imaging systems, such as those based on intensified charge-coupled device (ICCD) technology [13–15] or single-photon aval ...
Small Animal radiography Stifle Joint and CruS
Small Animal radiography Stifle Joint and CruS

... along the caudal aspect of the joint as well as the soft weight, medium to tissue musculature and popliteal lymph node. Caudal large dog is 60 kVP displacement of this fascial stripe can be indicative of Figure 2. A patient positioned for and 3 mAs for a lata mediolateral radiograph of the left s ...
Measurement of Pituitary Gland Height with MR Imaging
Measurement of Pituitary Gland Height with MR Imaging

... immediately posterior to the gland (figs. 1,2,5, and 6). Rarely , a small focus of marrow signal is identified at the tuberculum anteriorly. Since neither air nor cortical bone yields MR signals, variations in sphenoid sinus development inferiorly do not vary the MR image or affect the measurement. ...
From 3-D Positron Emission Tomography to 3
From 3-D Positron Emission Tomography to 3

... whole-body imaging into the clinical arena. More recently, the importance of routinely imaging function in conjunction with high resolution anatomy has been recognized and within the past three years, the combined PET/CT scanner has been introduced into clinical practice4–6. The device acquires accu ...
From 3-D Positron Emission Tomography to 3
From 3-D Positron Emission Tomography to 3

... whole-body imaging into the clinical arena. More recently, the importance of routinely imaging function in conjunction with high resolution anatomy has been recognized and within the past three years, the combined PET/CT scanner has been introduced into clinical practice4–6. The device acquires accu ...
PPCO Twist System - Today`s Veterinary Practice journal of
PPCO Twist System - Today`s Veterinary Practice journal of

... along the caudal aspect of the joint as well as the soft weight, medium to tissue musculature and popliteal lymph node. Caudal large dog is 60 kVP displacement of this fascial stripe can be indicative of Figure 2. A patient positioned for and 3 mAs for a lata mediolateral radiograph of the left s ...
Clinical Case Review
Clinical Case Review

... hemispheric involvement. However, left involvement did not correspond with the left-sided shaking. METHOD Because the ED did not have good localization of a possible stroke site, a Computed Tomography (CT) stroke protocol was ordered. FINDINGS Accepted practice for handling a stroke in the acute pha ...
Imaging the posterior mediastinum: a multimodality approach
Imaging the posterior mediastinum: a multimodality approach

... he posterior mediastinum is the anatomical region bordered superiorly by the thoracic inlet, inferiorly by the diaphragm, anteriorly by the pericardium and the great mediastinal vessels, posteriorly by the anterior longitudinal ligament, and laterally by the right and left parietal pleura folds (1). ...
Characterization of focal liver lesions by ADC
Characterization of focal liver lesions by ADC

... respiratory cycle (i.e., the number of sections per block) is adjusted to fit the individual breathing cycle of the patient. Typically 15 sections were acquired per respiratory cycle. The gradient factors (b-values) and spatial direction of the MPGs are identical for all sections acquired during one ...
SPECT/CT Physical Principles and Attenuation Correction*
SPECT/CT Physical Principles and Attenuation Correction*

... result from a reconstruction of the data acquisition process illustrated in Figure 1B. Even though the source distribution is uniform, the reconstructed image shows an apparent decrease in activity that reaches a minimum at the center of the image. This effect is due to attenuation of photons within ...
salivary gland radio.. - 口腔病理科教學網
salivary gland radio.. - 口腔病理科教學網

... An area of underfilling within the gland, due to ductal compression by the tumor Ductal displacement – the ducts adjacent to the tumor are stretched around it, an appearance known as ball in hand Retention of contrast medium in the displaced ducts during the empyting phase ...
Detection of Coronary Artery Stenoses by Contrast
Detection of Coronary Artery Stenoses by Contrast

... Methods and Results—A total of 64 consecutive patients were studied by MSCT (4⫻1 mm cross-sections, 500-ms rotation, table feed 1.5 mm/rotation, intravenous contrast agent, retrospectively ECG-gated image reconstruction). All coronary arteries and side branches with a luminal diameter ⱖ2.0 mm were a ...
Features of Focal Nodular Hyperplasia on Multiple Imaging Modalities
Features of Focal Nodular Hyperplasia on Multiple Imaging Modalities

... • Dr. Gillian Lieberman ...
Specification And Acceptance Testing Of Computed
Specification And Acceptance Testing Of Computed

... spelled out in the purchase document. Finally, the medical physicist can employ acceptance test data for x-ray machine inspection/registration reports required by some regulatory authorities. The primary concerns of clinical medical physicists in diagnostic radiology are image quality, radiation dos ...
Perfusion Assessment Using Intravoxel Incoherent Motion
Perfusion Assessment Using Intravoxel Incoherent Motion

... of intravoxel incoherent motion (IVIM) parameters and to compare the robustness of 2 biexponential fitting methods through magnetic resonance experiments using IVIM phantoms. Materials and Methods: Intravoxel incoherent motion imaging was performed on a 3 T magnetic resonance imaging scanner using 1 ...
Award Winners
Award Winners

... Evil Humors: Thoracic Manifestations of Immunoglobulin Related Disease in Adults M. H. Lee, MD, Madison, WI; J. P. Kanne, MD; C. A. Meyer, MD CHE205 ...
4D-CT Lung Registration and its Application for Lung
4D-CT Lung Registration and its Application for Lung

... lungs affects the MRI image contrast, thus the anatomical details that can be observed in MRI lung images are minimal. CT, on the contrary, is a faster method to acquire 3D image. It uses several x-ray beam and sensor pairs that rotate helically around motorized table for multiple rounds, combines d ...
Effect of Voxel Size on Detection of External Root Resorption
Effect of Voxel Size on Detection of External Root Resorption

... are critical factors for selection of an appropriate treatment plan and achieving a successful outcome (9). Thus, three-dimensional (3D) images may serve as important diagnostic tools in dental treatments. Use of CBCT scans can greatly help in this regard due to advantages such as the use of collima ...
Optimising contrast enhancement in abdominal CT
Optimising contrast enhancement in abdominal CT

... the use of bolus tracking is essential to ensure that imaging is carried out at the right time. Parenchymal enhancement, as typified by enhancement of the liver in the portal venous phase, increases with the amount of iodine administered and is inversely related to patient weight. It is relatively i ...
Stimulated Echo Diffusion Weighted Imaging of the Liver at 3 Tesla
Stimulated Echo Diffusion Weighted Imaging of the Liver at 3 Tesla

... and is also a major source of artifacts in abdominal imaging. Strategies have been proposed to decrease these effects, such as breath hold techniques and respiratory triggering. There exists a trade-off between the image quality and acquisition time. (c) According to basic MRI signal equations (26,3 ...
mri evaluation of knee cartilage
mri evaluation of knee cartilage

... Over the last two years, the use of high field strength magnets has increased in clinical practice, especially 3-Tesla magnets(16). These magnets make it possible to acquire morphological images at higher spatial resolution, which would be impossible to achieve over a reasonable acquisition time usi ...
stereotactic breast biopsy
stereotactic breast biopsy

... Post procedural care Assessment of histopathological concordance Follow up imaging ...
Task Force 13: Training in Advanced Cardiovascular Imaging
Task Force 13: Training in Advanced Cardiovascular Imaging

... with CT). Computed tomography, like invasive catheterization, provides information concerning cardiovascular anatomy and function (i.e., ejection fraction). Hybrid devices are rapidly evolving to incorporate state-of-the-art, high-speed multi-detector computed tomography (MDCT) technology, along wit ...
Chapter 6 - VU-dare
Chapter 6 - VU-dare

... prediction of mortality and major acute cardiovascular events (5-7). CMR myocardial perfusion imaging is a rapidly expanding technique for the detection of myocardial ischemia that has at least similar diagnostic accuracy as single photon emission computed tomography myocardial perfusion imaging (SP ...
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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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