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Diffusion Magnetic Resonance Imaging of Solid Vestibular
Diffusion Magnetic Resonance Imaging of Solid Vestibular

... schwannomas were in conformity with increased diffusion rates, indicating the presence of increased amounts of extracellular water (a relatively loose tissue) in the tumor matrix. Index Terms: Vestibular schwannoma—Acoustic neuroma—Diffusion magnetic resonance imaging. ...
MRI of the colon - Open Access Journals
MRI of the colon - Open Access Journals

... Studies using gaseous agents for colonic dis­ tension in MR colonography are fairly limited; nonetheless insufflation of the colon with CO2 or room air has been evaluated in a few stud­ ies  [38,40,42] . Bowel distension by insufflation results in low signal intensity of the bowel lumen at T1- and T ...
Magnetic Resonance Imaging: Information for Patients
Magnetic Resonance Imaging: Information for Patients

... accurate method of diagnosing many diseases. Your doctor may send you for an MRI when they believe that it will either confirm or rule out a particular diagnosis. For example, when a person comes to the hospital with sudden weakness on one side, the cause may be an acute stroke or a brain tumor. By ...
To Whipple or Not to Whipple, that is the Question: Evaluating the Resectability of Pancreatic Adenocarcinoma
To Whipple or Not to Whipple, that is the Question: Evaluating the Resectability of Pancreatic Adenocarcinoma

... percent encasement: d) Less than 1 cm SMV between tumor and first major SMV branch e) Portal vein involvement: g) Splenic vein involvement h) Splenic artery involvement and distance from tumor to celiac artery bifurcation i) Vascular Involvement, VI: Is there thrombosis of any vessel ...
diffuse contrast enhancement on mr images in brain infarction
diffuse contrast enhancement on mr images in brain infarction

... seen on contrast-enhanced MR images in patients with subacute infarction. A retrospective study of 104 patients with the diagnosis of stroke who had undergone contrast-enhanced MR scanning within2 weeks of the inciting neurological event revealed 66 patients who demonstrated different patterns of co ...
Multimodality Assessment of Brain Tumors and Tumor Recurrence
Multimodality Assessment of Brain Tumors and Tumor Recurrence

... limited by difficulties in patient repositioning and changes occurring between the different measurements. Sophisticated image fusion algorithms have been developed and are applied in many centers, but visual comparison of images positioned side by side is still the most commonly used approach in cl ...
technique - Dr. Barry A. Kaplan
technique - Dr. Barry A. Kaplan

... that perfect picture, and then once the photo is taken, how do you manage to get the image from the camera to your computer, or to a printer so that you can have a hard copy of that perfect picture? Who is teaching us how to manage technology today? Or are we just managing to learn only the very bas ...
Breast Imaging Reporting and Data System (BI
Breast Imaging Reporting and Data System (BI

... • Prior to definitive surgical excision • Index lesion on MRI – Extent of disease prior to treatment – Response to treatment during neoadjuvant ...
Electroencephalographic source imaging: a prospective
Electroencephalographic source imaging: a prospective

... Electroencephalography is mandatory to determine the epilepsy syndrome. However, for the precise localization of the irritative zone in patients with focal epilepsy, costly and sometimes cumbersome imaging techniques are used. Recent small studies using electric source imaging suggest that electroen ...
Enlarged Heart
Enlarged Heart

... Doctors often use x-rays such as these to determine the size of a patient’s heart. The heart appears as a dark shadow on an x-ray, and the chest cavity surrounding the heart appears lighter. Take a moment to carefully observe and try to identify any key parts you may see. Compare your observations t ...
IS IT NECESSARY LOOK AT IMAGES WITHOUT ATTENUATION
IS IT NECESSARY LOOK AT IMAGES WITHOUT ATTENUATION

... In oncologic PET/CT imaging, correction of  oncologic PET/CT imaging correction of images for signal attenuation allows for: – A:   Reduction of motion‐induced artifact A: Reduction of motion induced artifact – B:   Semi‐quantitative image analysis (e.g., SUV) – C:   Increased diagnostic specificity ...
Visual Fields:
Visual Fields:

... Images from the left visual space fall on the temporal retina in the right eye and the nasal retina in the left eye Images from the right visual space fall on the temporal retina of the left eye and the nasal retina of the right eye At the chiasm, the axons become resorted:  Axons representing the ...
QUT Digital Repository:   This is the author version published as:
QUT Digital Repository: This is the author version published as:

... As not all coronary stenoses detected by CCTA are flow limiting, additional noninvasive testing should be considered prior to cardiac catheterisation. Positron emission tomography (PET) hybrid CT devices allow integration of the structure and function of the heart (65). Stress PET data may identify ...
1 - American College of Radiology
1 - American College of Radiology

... CT scanners have been available for years. Combined PET/CT devices [1,2] provide both the metabolic information from FDG-PET and the anatomic information from CT in a single examination. The information obtained by PET/CT has been shown to be more accurate in evaluating patients with known or suspec ...
Evaluation of genial tubercle anatomy using cone beam computed
Evaluation of genial tubercle anatomy using cone beam computed

... or who had already undergone surgery were excluded. Low-quality images that did not allow sufficient visualization of bone borders, or those with artefacts or insufficient magnification were also omitted. A Newtom 3G (Quantitative Radiology s.r.l., Verona, Italy; 120 kVP, 3-5 mA, slice thickness 0.3 ...
Computer-aided diagnostic for interstitial lung
Computer-aided diagnostic for interstitial lung

... HRCT images of the chest showing patterns associated with ILDs is time–consuming and requires experience. The three–dimensional form requires significant reading time, effort, and experience for a correct interpretation [4]. Moreover, the context is fundamental for correct interpretation: healthy ti ...
Routine Shoulder MRI for Evaluating Glenoid Labrum Pathology as
Routine Shoulder MRI for Evaluating Glenoid Labrum Pathology as

... presenting with glenoid labrum tears as the sole site of pathology. Since it has been shown that MR arthrography has a much higher sensitivity and specificity (>90%) for diagnosing glenoid labrum tears, it is imperative that detailed clinical findings (including level of suspicion for a labral tear) ...
Panoramic Radiography Tips
Panoramic Radiography Tips

... he panoramic radiograph continues to offer today’s dentist a unique patient view; covering the entire dentition and surrounding structures, the facial bones and condyles, and parts of the maxillary sinus and nasal complexes. The equipment used to obtain panoramic radiographs has continued to improve ...
User Manual Digital Panoramic X
User Manual Digital Panoramic X

... protection. It is the responsibility of the customer to ensure that the site is large enough for the patients. The unit contains toxic materials that need to be handled properly when disposing the unit. Return the unit to the dealer in the end of its life cycle. Excessive dust should be cleaned from ...
Final draft
Final draft

... The Benefits of X- ray Technology The X-ray was a monumental leap forward for technology and the medical fields, X-rays have helped the medical community expand to the point that Radiologists can help to diagnose diseases as well as give detailed information about the human body which was once only ...
Spiral CT
Spiral CT

... – If couch moves 10mm/s and the imaging time is 5s then 50mm (5cm) of axial coverage will result ...
VIMEDIX™ Ob/Gyn Ultrasound Simulator
VIMEDIX™ Ob/Gyn Ultrasound Simulator

... Augmented reality display includes interactive, animated 3D anatomical depiction of organs, structures and abnormalities High resolution, real-time ultrasound images that can be viewed simultaneously with 3D anatomical images in split screen mode Visual display of surrounding anatomical structures: ...
A virtual world of paleontology - Bristol Palaeobiology Research Group
A virtual world of paleontology - Bristol Palaeobiology Research Group

... Computer-aided visualization and analysis of fossils has revolutionized the study of extinct organisms. Novel techniques allow fossils to be characterized in three dimensions and in unprecedented detail. This has enabled paleontologists to gain important insights into their anatomy, development, and ...
Frequency and Imaging Findings of Variations in Human Aortic Arch
Frequency and Imaging Findings of Variations in Human Aortic Arch

... The CT examinations were performed on a 8 channel MDCT system (GE Medical Systems, Milwaukee, WI, USA). Data retrieval and analysis was performed using a patient archive and communication system (PACS) Workstation (Centricity RA 1000, GE Medical Systems, Milwaukee, WI, USA). The anatomy of the AA an ...
cp411_lb - dicom (nema)
cp411_lb - dicom (nema)

... Detector Angles are defined in a fashion similar to the positioner angles, except that the angle of the x-ray beam vector is relative to the detector plane rather than the patient plane. Zero degrees is referenced to the normal of the detector plane pointing toward the x-ray source. The valid range ...
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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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