• Tomography using x-ray transmission and a computer algorithm to reconstruct the image. (lookformedical.com)
  • Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image. (lookformedical.com)
  • The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image. (lookformedical.com)
  • In collaborating with leading researchers in the field, he and his team have worked on magnetic resonance imaging (MRI) and have also investigated emerging imaging techniques, including electron-paramagnetic resonance imaging (EPRI), phase-contrast CT, and photo-acoustic tomography (PAT), among others. (uchicago.edu)
  • Computationally efficient and statistically robust image reconstruction in three-dimensional diffraction tomography. (uchicago.edu)
  • Optimal noise control in and fast reconstruction of fan-beam computed tomography image. (uchicago.edu)
  • Image reconstruction with shift-variant filtration and its implication for noise and resolution properties in fan-beam computed tomography. (uchicago.edu)
  • Computed tomography (CT) scanning is useful in selected situations (eg, in equivocal cases of sacroiliitis and in cases in which subtle radiographic changes are present) and in the evaluation of complications. (medscape.com)
  • Here, we presented a case of a 50-year-old female patient suffering from slightly headache who received breast cancer modified radical mastectomy in 2004, computed tomography and magnetic resonance imaging findings revealed abnormal lesions of diffuse skull which were misdiagnosed as skull metastasis, and the relevant literatures were also reviewed. (biomedcentral.com)
  • The guideline will provide a review of diagnostic modalities for patients with small bowel hemorrhage including VCE, endoscopic evaluation with push and/or deep enteroscopy, and radiographic modalities including cross-sectional imaging (computed tomography (CT) and magnetic resonance (MR)) enterography, angiography, and scintigraphy. (medscape.com)
  • Computerized tomography (CT) can provide a radiographic image of a selected body plane and thus may be particularly helpful in evaluating small calcified or cavitated chest lesions, for example. (oncolink.org)
  • Examples include positron emission tomography (PET) scan in brain imaging and radiolabled monoclonal antibodies such as CYT-103 and TAG-72, the latter associated with mucin-producing adenocarcinomas. (oncolink.org)
  • The technology is reliable and versatile, which expands the diagnostic and image-sharing possibilities of radiography in dentistry. (dentistrytoday.com)
  • The utilization of brightness and contrast, task-specific image processing, and sensor-independent archiving are advantages that digital radiography has over conventional film-based imaging. (dentistrytoday.com)
  • Radiography remains the first choice in imaging RA. (medscape.com)
  • This report documents the use of low dose scanning beam digital radiography (American Science and Engineering, Inc., Cambridge, Mass.) as a substitute for conventional fluoroscopy to perform the imaging required for successful gastrointestinal biopsy in children. (wustl.edu)
  • This technique permits the performance of projection radiography at low radiation exposures of 0.24 to 2.4 milliroentgens per image (mR/image) ([0.62 to 6.2] x 10 -7 Coulombs per kilogram) (C/kg). (wustl.edu)
  • The development of guidelines and recommendations for the use of digital radiography and images in recognition and classification of the pneumoconioses. (cdc.gov)
  • To assist radiographic facilities, physician readers, governmental agencies, and other interested organizations in assuring that the recognition and classification of pneumoconiosis using digitally-acquired chest radiographs is at least as safe and effective as traditional film screen radiography, NIOSH has prepared Guidelines, based upon accepted contemporary professional recommendations. (cdc.gov)
  • NIOSH has prepared the NIOSH Guideline: Application of Digital Radiography for the Detection and Classification of Pneumoconiosis (DHHS (NIOSH) Publication No. 2011-198) to provide information and recommendations to individuals and organizations who wish to acquire and use digital images for the recognition and classification of pneumoconioses. (cdc.gov)
  • Using film radiography, standardization of the viewing environment was relatively easy to achieve, simply requiring a dimly lit room, a viewing light box having the correct luminosity and radiographic films taken according to conventional methods. (cdc.gov)
  • Digital radiography, with its attendant opportunity for image manipulation, thus brings with it unique challenges for the classification of pneumoconioses. (cdc.gov)
  • Background The aim of this study was to evaluate the usefulness of noise reduction procedure (NRP), a function in the new image processing for chest radiography. (elsevierpure.com)
  • The usefulness of NRP was evaluated by chest phantom images and clinical chest radiography. (elsevierpure.com)
  • The results in image quality showed high-density resolution through the use of NRP, so that chest radiography examination can be performed with a low dose of radiation. (elsevierpure.com)
  • Radiography can miss facet fractures, and dynamic radiographic views are often warranted. (medscape.com)
  • CT imaging is better for bone definition and is important when radiography shows injury or when an area is poorly visualized. (medscape.com)
  • In patients with ankylosing spondylitis (not non-radiographic axial SpA), initial conventional radiography of the lumbar and cervical spine can detect syndesmophytes, which are predictive of development of new syndesmophytes. (medscape.com)
  • Although skeletal radiography is usually sufficient to reach a diagnosis of discospondylitis, MRI of this patient made it possible to reach a presumptive diagnosis of discospondylitis prior to development of definitive radiographic abnormalities. (avmi.net)
  • Although plain radiographic findings of vertebral involvement have been well-described, the radiology literature has only a limited number of case reports and small case series describing imaging findings in detail with other modalities, specifically MR imaging. (ajnr.org)
  • The presence of a pleural abnormality is usually suggested following a routine chest x-ray, with a number of imaging modalities available for further characterization. (ox.ac.uk)
  • Image annotation and markup are at the core of medical interpretation in both the clinical and the research setting. (nih.gov)
  • Clinical and digital radiographic view of overretained primary central incisor. (dentistrytoday.com)
  • Research of Professor Pan's lab centers on physics, algorithms, and engineering underpinning tomographic imaging and its biomedical and clinical applications. (uchicago.edu)
  • In recent years, he and his team have developed programs that translate theoretical concepts and methods to biomedical application work that includes developing innovative hardware systems and workflows, enabled by advanced algorithms, with a strong emphasis on the relevance and impact of imaging technological solutions tailored to specific applications of biomedical and/or clinical significance. (uchicago.edu)
  • Collignon F, Martin D, Lenelle J, Stevenaert A. Acute traumatic central cord syndrome: magnetic resonance imaging and clinical observations. (medscape.com)
  • Because of the worsening clinical presentation and abnormal imaging studies, along with an ongoing concern for underlying neoplasm, a core biopsy of the proximal aspect of the right femur was performed. (jbjs.org)
  • Magnetic resonance imaging (MRI) is an established clinical tool for diagnosing multiple sclerosis (MS), the archetypal central nervous system neuroinflammatory disease. (ox.ac.uk)
  • Infants with no clinical or radiographic signs of NEC, and a group of infants with evidence of at least Bell's Stage 2 NEC were enrolled in our study. (spie.org)
  • A 100% clinical and radiographic response was achieved with 4 cycles of BV. (oncotarget.com)
  • The goal of the Annotation and Image Markup (AIM) project is to develop a mechanism, for modeling, capturing, and serializing image annotation and markup data that can be adopted as a standard by the medical imaging community. (nih.gov)
  • This is repeated at various angles and a mathematical reconstruction provides three dimensional MEDICAL IMAGING of tissues. (lookformedical.com)
  • Institute of Electrical and Electronics Engineers Inc. , (2020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020). (korea.ac.kr)
  • This article describes the radiographic and cross-sectional appearances of pleural diseases, which are commonly encountered in every day practice. (ox.ac.uk)
  • The main disadvantage is the absence of specific radiographic findings in early disease, since visualization of erosions may only be seen later. (medscape.com)
  • Imaging findings in patients with a combination of synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) are often misinterpreted as discitis/osteomyelitis or metastases, resulting in multiple biopsies and delayed diagnosis. (ajnr.org)
  • Findings of spinal involvement on conventional radiographic imaging have been reported to include vertebral body osteosclerosis, paravertebral ligament ossification, hyperostosis, and discovertebral junction lesions. (ajnr.org)
  • On magnetic resonance imaging (MRI), findings were similar to those described for human diskospondylitis including altered signal intensity and nonuniform contrast enhancement of the L7-S1 intervertebral disc, adjacent vertebral end plates and epidural and sublumbar soft tissues. (avmi.net)
  • MR findings were compared with radiographic evaluation of tumor vascular supply on the basis of conventional x-ray angiography. (qxmd.com)
  • MR findings were correlated with radiographic follow-up for at least 12 months. (swoo.nl)
  • Photographic reproduction of the patient's film images, printed with complete measurements and displayed next to comparatively normal images, should be shown to the patient to explain the findings and insure patient retention. (theamericanchiropractor.com)
  • Brain imaging and autopsy findings in a case of chronic Jamestown Canyon virus (JCV) meningoencephalitis in a patient receiving rituximab, Boston, Massachusetts, USA. (cdc.gov)
  • Lhermitte Duclos Disease, Incidental Findings, Diagnostic Imaging. (bvsalud.org)
  • Results NPS through the use of NRP was improved compared with conventional image processing (CIP). (elsevierpure.com)
  • Thus, changes in rCBV might be a more sensitive indicator of lesion onset than the conventional indices used clinically in MS patients, such as contrast enhancement. (ox.ac.uk)
  • Use of optic and geometric techniques to enhance radiographic image quality and interpretation. (rush.edu)
  • Magnetic resonance imaging (MRI) provides a more accurate assessment, as well as earlier detection of lesions. (medscape.com)
  • MRI (vertebral corner inflammatory or fatty lesions) may also be used to predict development of new radiographic syndesmophytes. (medscape.com)
  • No metastatic lesions were observed on the CT images of the chest, abdomen, and pelvis. (biomedcentral.com)
  • The lesions exhibited a slight hypointensity on T1-weighted imaging (T1WI) (Fig. 2 a), and isointensity on T1-weighted imaging (T2WI) (Fig. 2 b) and T2-fluid-attenuated inversion recovery (FLAIR) (Fig. 2 c) images, and were significantly enhanced (Fig. 2 d, e, f) after enhancement. (biomedcentral.com)
  • Magnetic resonance imaging of the brain showed mild ventriculomegaly attributed to atrophy but was otherwise unremarkable, without contrast enhancement, cortical diffusion restriction, mass lesions, hemorrhage, or infarction ( Figure 1 ). (cdc.gov)
  • MRI of the pelvis demonstrated signal abnormalities on short tau inversion recovery (STIR) images indicative of bone marrow edema involving the left femoral head and neck and an associated small joint effusion. (jbjs.org)
  • Magnetic resonance imaging (MRI) is useful in assessing early cartilage abnormalities and bone marrow edema. (medscape.com)
  • Because of more frequent use of noninvasive imaging methods, AVMs are gaining attention. (medscape.com)
  • CONCLUSIONS: These preliminary results indicate that contrast-enhanced MR imaging may be useful for noninvasive evaluation of femoral head perfusion after femoral neck fracture. (swoo.nl)
  • Ultrasonography is non-radiographic and noninvasive, using high-frequency sound waves to view deep soft-tissue structures. (oncolink.org)
  • Axial, T2-weighted magnetic resonance imaging (MRI) scan showing large left suprarenal mass of high signal intensity on a T2-weighted image. (medscape.com)
  • Effects of constant frequency noise in magnetic resonance imaging with nonuniform k-space sampling. (uchicago.edu)
  • However, in the immediate setting, they are contraindicated and computerized tomographic (CT) imaging and magnetic resonance imaging (MRI) are the preferred methods. (medscape.com)
  • The magnetic resonance imaging (MRI) results revealed that the bilateral frontal bone, right temporal bone, and right parietal bone were thickened with nodules. (biomedcentral.com)
  • Magnetic resonance imaging (MRI)plays a crucial role in the diagnosis as opposed to plain radiographs which are not helpful [6] . (jocr.co.in)
  • Magnetic resonance imaging, or MRI, is similar to the CT in that it creates sectional body images. (oncolink.org)
  • A) Brain magnetic resonance imaging T2-weighted fluid-attenuated. (cdc.gov)
  • Radiographic Magnification" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (rush.edu)
  • in Figures 1-B through 1-D, an axial T2-weighted image was used because this study was obtained at an outside institution, and no coronal T2-weighted MRI was obtained. (jbjs.org)
  • An image annotation is the explanatory or descriptive information about the pixel data of an image that is generated by a human or machine observer. (nih.gov)
  • An image markup is the graphical symbols placed over the image to depict an annotation. (nih.gov)
  • While DICOM is the standard for medical image acquisition, manipulation, transmission, storage, and display, there are no standards for image annotation and markup. (nih.gov)
  • Such techniques not only include variation of brightness and contrast parameters, but often include enhancement techniques such as edge enhancement and noise reduction. (cdc.gov)
  • Non-ECG-gated and ECG-gated sections were then rated in blinded fashion by three experienced radiologists for overall image quality, spatial resolution, and diagnostic value and for different types of respiratory and cardiac motion artifacts. (nih.gov)
  • In contrast, vendors of modern digital radiographic equipment, in the interest of achieving better diagnostic success, now provide the means to manipulate radiographic images. (cdc.gov)
  • Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS , recording the image on a sensitized surface (such as photographic film). (lookformedical.com)
  • Infrared imaging can detect tissue inflammation and thus has the potential to be an early diagnostic tool for NEC. (spie.org)
  • Other image analysis techniques will be tested to enhance the performance of our new diagnostic tool. (spie.org)
  • In fact, MRI with gadolinium enhancement is considered the best diagnostic tool for detection of brain metastases. (oncolink.org)
  • Using highly technical equipment and techniques produces computerized enhancement of the radiographic plain films, that can then be used to perform at least fifty-nine biomechanical analyses for diagnostic purposes. (theamericanchiropractor.com)
  • The intention of this article was to help the reader gain intuition about the applications of image processing in biomedical images and early diagnosis of potentially life threatening diseases. (wixsite.com)
  • SAPHO syndrome should be included in the differential diagnosis in a patient with a curvilinear or semicircular pattern of vertebral involvement, contiguous vertebral body involvement, and absence of intervertebral disc edema and enhancement. (ajnr.org)
  • Imaging studies should be performed only after biochemical studies have confirmed the diagnosis of pheochromocytoma. (medscape.com)
  • With the advancement of medical image processing along with computer-aided diagnosis approach, the existing healthcare system is equipped with potential imaging devices (e.g. (caeaccess.org)
  • Radiographs are the single most important imaging technique for the detection, diagnosis, and follow-up monitoring of patients with ankylosing spondylitis. (medscape.com)
  • The diagnosis may be reliably made if the typical radiographic features of ankylosing spondylitis are present. (medscape.com)
  • Imaging plays an important role in the diagnosis and subsequent management of patients with pleural disease. (ox.ac.uk)
  • Imaging procedures play a vital role in diagnosis, allowing physicians to ascertain the presence of a mass, localize it for biopsy, characterize tissue, and determine anatomical extent of disease in preparation for subsequent therapy (surgery and radiation therapy, for example). (oncolink.org)
  • Diagnosis is typically by imaging (usually. (msdmanuals.com)
  • We have incidentally noted a semicircular morphology in vertebral body imaging in several cases of SAPHO syndrome with vertebral involvement. (ajnr.org)
  • Finally, a fine-tuning technique is applied to classify the welding images and is compared to the deep convolutional activation features (DCFA) and several pretrained DCNN models, namely, VGG-16, VGG-19, ResNet50, ResNet101, and GoogLeNet. (hindawi.com)
  • An imaging technique using compounds labelled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. (lookformedical.com)
  • A tomographic technique for obtaining 3-dimensional images with transmission electron microscopy. (lookformedical.com)
  • To determine whether electrocardiographic (ECG) gating improves image quality of thin-section computed tomographic (CT) scans of the lung obtained with a subsecond CT scanner. (nih.gov)
  • A pheochromocytoma (see the image below) is a rare, catecholamine-secreting tumor derived from chromaffin cells. (medscape.com)
  • A pheochromocytoma (see the image below) is a rare, catecholamine-secreting tumor that may precipitate life-threatening hypertension. (medscape.com)
  • In some instances, MR revealed postembolization residual enhancement of the tumor that was difficult to appreciate on x-ray angiograms. (qxmd.com)
  • Lacrimal gland malignancy was low on the dif-ferential because he was a healthy boy with a normal physical exam and no radiographic characteristics of tumor. (aao.org)
  • NIOSH is currently researching the use of digital chest images for the evaluation of the pneumoconioses. (cdc.gov)
  • The page also includes a summary of research needs and other developments relating to enhancing the evaluation of digital chest images for the purpose of improving the sensitivity, accuracy, and reliability of detecting occupational lung disease. (cdc.gov)
  • Being aware of this trend, the National Institute for Occupational Safety and Health (NIOSH) has been pursuing means to facilitate and standardize the evaluation of chest images, with the object of enhancing the accuracy and precision of determinations and making modern digital imaging technologies accessible and practical for use in classification. (cdc.gov)
  • Image noise was analyzed with a noise power spectrum (NPS) and a burger phantom was used for evaluation of density resolution. (elsevierpure.com)
  • Following detailed imaging evaluation, both cases were treated with open surgical excision and patellar tendon synovectomy. (jocr.co.in)
  • Patients with spinal cord injury without radiographic abnormality (SCIWORA) should undergo MRI testing of the suspected area, radiographic screening of the entire spinal cord, assessment of spinal stability with flexion-extension radiographs (in the acute setting and late follow-up, even with negative MRI), but neither spinal angiography or myelography is recommended. (medscape.com)
  • in this image, increased signal intensity is present in the bone marrow of the right femoral head (arrow) as compared with the bone marrow signal in the adjacent acetabulum. (jbjs.org)
  • in this image, increased signal intensity is present in the bone marrow of the right femoral head as compared with the bone marrow signal in the supra-acetabular region. (jbjs.org)
  • On contrast-enhanced MR images of these patients, the femoral head did not enhance and was lower in signal intensity than were the enhancing femoral shaft and neck distal to the fracture and the enhancing femoral head on the unaffected side. (swoo.nl)
  • Radiographic studies, or x-rays, permit visualization of internal body structures, and can be site specific, such as mammography. (oncolink.org)
  • Weld defects detection using X-ray images is an effective method of nondestructive testing. (hindawi.com)
  • Fast lung nodule detection in chest CT images using cylindrical nodule-enhancement filter. (caeaccess.org)
  • Despite the advent of improved biochemical methods and imaging technology over the years, early detection of cancer remains a key to survival. (oncolink.org)
  • Patients underwent contrast enhanced CT imaging without bowel preparation or oral contrast. (duke.edu)
  • Infants underwent bedside infrared imaging for 60 seconds. (spie.org)
  • Five patients underwent MR imaging of the hip utilizing fat-suppressed (STIR) sequences and the others, T1-weighted spin-echo sequences before and after i.v. contrast administration. (swoo.nl)
  • Nuclear medicine studies are very sensitive and often detect sites of abnormal metabolic behavior months before radiographic changes occur. (oncolink.org)
  • In patients with heart rates of less than 76 beats per minute, ECG gating significantly improved overall image quality (P = .041). (nih.gov)
  • Given advances in small bowel imaging with video capsule endoscopy (VCE), deep enteroscopy, and radiographic imaging, the cause of bleeding in the small bowel can now be identified in most patients. (medscape.com)
  • The reason for this change in terminology is owing to the fact that the cause of bleeding can now be detected in the majority of patients given advances in small bowel imaging with video capsule endoscopy (VCE), deep enteroscopy, and radiographic imaging. (medscape.com)
  • RESULTS: Radiographic follow-up showed femoral head osteonecrosis in two patients. (swoo.nl)
  • A T1-weighted MRI that depicts a lesion with high signal enhancement inside the cervical spinal cord. (medscape.com)
  • In any image, the pixel values are limited to a specific range only, from the way the image was formed. (wixsite.com)
  • We can visualize that from the histogram of pixel intensities of the image. (wixsite.com)
  • An image histogram shows how many spatial pixels are actually assigned to each pixel value. (wixsite.com)
  • While DICOM contains a large amount of meta-data about whom, where, and how the image was acquired, DICOM says little about the content or meaning of the pixel data. (nih.gov)
  • After a thorough physical examination has been done and the need for the X-rays has been established, X-rays are sent to a specialized company which uses highly technical equipment and techniques to produce computerized enhancement of the radiographic plain films. (theamericanchiropractor.com)
  • Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level. (bvsalud.org)
  • The biopsy needle is seen as a straight echogenic line on the left side of the image in an oblique orientation. (medscape.com)
  • The relative merits of CT, MRI and PET in the assessment of these conditions and the role of image-guided intervention are discussed. (ox.ac.uk)
  • Assessment of vasculature of meningiomas and the effects of embolization with intra-arterial MR perfusion imaging: a feasibility study. (qxmd.com)
  • There was in fact no abscess, but there was redemonstration of an enlarged lacri-mal gland, and the MRI highlighted as-sociated enlargement and enhancement of the superior and lateral recti muscles with scleral thickening of the postero-lateral aspect of the globe ( Fig. 4 ). (aao.org)
  • ECG gating improves image quality of thin-section CT scans of the lung by reducing cardiac motion artifacts that may mimic disease. (nih.gov)
  • Digital medical images are managed with the DICOM standard format. (nih.gov)
  • The world is in process of transition from film screen radiology to the use of digital imaging. (cdc.gov)
  • One of the enhancements is called digital radiographic mensuration. (theamericanchiropractor.com)
  • A cryptorchid testis, shown in the image below, is 20-48 times more likely to undergo malignant degeneration than a normal testis. (medscape.com)
  • MR perfusion imaging with selective IA injection of dilute contrast can reveal the distribution territory of vessels. (qxmd.com)
  • AIMS: To evaluate the use of MR imaging, before and after i.v. administration of Magnevist, for assessing the femoral head perfusion after femoral neck fracture. (swoo.nl)
  • In this article we shall discuss three such image transforms with increasing clarity of those x-ray images without going deep into the mathematical details and discuss if such pre-processing actually helps in image classification tasks if applied to a neural network. (wixsite.com)
  • Image manipulation runs counter to the fundamental principles of pneumoconiosis classification, where the underlying principle has been the standardization of images and the reading environment. (cdc.gov)
  • The main objective of this work is to explore the capacity of AlexNet and different pretrained architecture with transfer learning for the classification of X-ray images. (hindawi.com)
  • Certainly, the classification of images will be in the coming years because it is a well-known field of computer vision. (hindawi.com)
  • Many approaches have been done using machine learning (ML) and image processing tools to solve those tasks. (hindawi.com)
  • With the advent of high-throughput image processing and quantification methods, new radiographic attributes of AVM-related epilepsy have been identified. (medscape.com)
  • Here, we apply machine learning to microscopic image analysis for label-free motion tracking of the zoonotic bacterium Leptospira interrogans on cultured animal cells. (bvsalud.org)
  • An implicit sliding-motion preserving regularisation via bilateral filtering for deformable image registration. (ox.ac.uk)
  • Short-scan SPECT imaging with non-uniform attenuation and 3D distance-dependent spatial resolution. (uchicago.edu)
  • During this time, researchers have improved the quality of the radiographic images. (dentistrytoday.com)
  • In this, individuals and organizations can submit anonymized, deidentified chest images that may be of interest to the medical and scientific community for a range of applications, such as education, training, quality control, research, and surveillance. (cdc.gov)
  • Since the digitized images are characterized with poor quality and low contrast, weld defect inspection could become a challenging task. (hindawi.com)
  • Several biomedical applications require accurate image registration that can cope effectively with complex organ deformations. (ox.ac.uk)
  • Due to the ability to magnify the image, the patient and parent can be shown any dental disease seen on the radiograph which helps in patient/parent education (Figures 4 a to 4e). (dentistrytoday.com)
  • Power Doppler image shows hyperemic blood flow in the flexor tendon sheath in a patient with rheumatoid arthritis of the hands. (medscape.com)
  • Please note that the NIOSH BViewer is not required and NIOSH is aware of several B Readers that are able to use a commercial DICOM Viewer or PACS to display the ILO reference chest images along side of patient chest images. (cdc.gov)
  • The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. (lookformedical.com)
  • Enhancing these images through spatial or histogram transforms are a common practice throughout the medical industry. (wixsite.com)
  • Let's understand that by looking at the histogram of the original image and compare it to the histogram equalized version. (wixsite.com)
  • The images were measured using the histogram tool provided by the Image Tool program (UTHSCSA, Texas, USA) selecting specific areas on the bone chips and on the aluminum step-wedge. (bvsalud.org)
  • Uniform enhancement is seen with intravenous (IV) radiographic contrast. (medscape.com)
  • Then, each bone chip and the aluminum step-wedge were placed on periapical radiographs in order to take the images with Ekta Speed film, with an exposure time of 0.2 seconds and focal length of 25 cm. (bvsalud.org)
  • The areas are surrounded by reactive sclerosis and have been termed the shiny corner sign, or Romanus lesion (see the image below). (medscape.com)