• The advent of low-dose helical computed tomography (CT) altered the landscape of lung-cancer screening, with studies indicating that low-dose CT detects many tumors at early stages. (nih.gov)
  • High-resolution computed tomography (HRCT) scanning is more sensitive than chest radiography in diagnosing emphysema and in determining its type and extent of disease. (medscape.com)
  • A number of studes have assessed the role of computed tomography (CT) in the early detection of lung cancer in patients with COPD and in predicting response to lung-volume-reduction surgery (LVRS). (medscape.com)
  • Alternative methods of medical imaging include single-photon emission computed tomography (SPECT), x-ray computed tomography (CT), magnetic resonance imaging (MRI) and functional magnetic resonance imaging (fMRI), and ultrasound. (wikipedia.org)
  • Technical advances in computed tomography allow the assessment of airway wall dimensions, and are ideally suited for the noninvasive investigation of the pathogenesis of airway wall remodelling and the evaluation of new therapeutic interventions. (ersjournals.com)
  • The aim of this article is to review the use of computed tomography in the investigation of airway structure and function in health and disease. (ersjournals.com)
  • Computed tomography (CT)-estimated dimensions of the airway lumen and wall, and accompanying pulmonary artery. (ersjournals.com)
  • Computed tomography and computed tomographic osteoabsorptiometry were superior to conventional radiography for detecting small osteochondral fragments. (avma.org)
  • When there is clinical suspicion of lymphangioleiomyomatosis, it has been diagnosed on the basis of compatible chest radiographs, pulmonary function tests (PFTs), and computed tomography (CT) findings. (medscape.com)
  • Computed tomography (CT) is a nonaggressive modality which provides more anatomical detailed data. (ac.ir)
  • The study aimed to evaluate the diaphragm morphology (height and thickness) in single-lung transplantation (SLTx), using computed tomography (CT), by assessing the evolution of the hemidiaphragm of the transplanted and the native side. (frontiersin.org)
  • Computed tomography (CT) can detect sternal lymph nodes more accurately than radiography or ultrasonography, and the criteria of the sternal lymphadenopathy are unknown. (allenpress.com)
  • Computed tomography (CT) of the cervical spine is usually reserved for the evaluation of patients with equivocal or suspicious finding at plain radiography ( 1 ). (ispub.com)
  • industrial applications of X-ray CT are discussed at industrial computed tomography scanning. (fully3d.org)
  • As X-ray CT is the most common form of CT in medicine and various other contexts, the term computed tomography alone (or CT) is often used to refer to X-ray CT, although other types exist, such as positron emission tomography (PET) and single-photon emission computed tomography (SPECT). (fully3d.org)
  • Older and less preferred terms that also refer to X-ray CT are computed axial tomography (CAT scan) and computer-aided/assisted tomography. (fully3d.org)
  • All of these methods have become less useful with the advent of more sensitive and specific nonenhanced computed tomography (CT) scanning. (medscape.com)
  • 2017. Comparison of Thoracic Radiography and Computed Tomography in Calves with Naturally Occurring Respiratory Disease. . (oregonstate.edu)
  • Content is designed to provide entry-level radiography students with principles related to computed tomography (CT) imaging. (wellspan.org)
  • This course is designed to provide a knowledge base necessary to perform standard imaging procedures, including basic computed tomography (CT) and special studies. (wellspan.org)
  • The evolution of the source material as well as of the crystal growth interface was carried out using in situ 3D X-ray computed tomography (75 mm crystals) and in situ 2D X-ray visualization (100 mm crystals). (researchgate.net)
  • MRI is also superior to computed tomography (CT) scanning in delineating the extent of the neoplasms and their relation to the surrounding structures. (medscape.com)
  • With the exception of renal tomography most tomographic procedures have been replaced by computed tomography (CT). (unboundmedicine.com)
  • We help companies thoroughly investigate parts & assemblies with our high quality computed tomography services paired with expert analytical support. (jgarantmc.com)
  • If the fit is right for our computed tomography services, the feasibility review considers part/assembly type, material, regions of interest, and the objective for the CT scan. (jgarantmc.com)
  • We then match the NDT or Metrology inspection need with one of our many and highly diverse computed tomography imaging machines. (jgarantmc.com)
  • Our industrial lab utilizes 100kv , 150kv , 225kv , 450kv , and 3MEV linear accelerator Computed Tomography systems with LDA's and flat panel detectors . (jgarantmc.com)
  • Depending on the Computed Tomography project, we analyze the reconstructed (3D imaging) results for either material or geometry based output requirements. (jgarantmc.com)
  • As all Computed Tomography projects are unique, each project is finalized between our lab and the customers key decision makers over a results web conference. (jgarantmc.com)
  • Need more info on Computed Tomography? (jgarantmc.com)
  • Computer aided tomographic techniques, such as Industrial Computed Tomography (CT), have revolutionized the way industry leaders qualify and validate industrial parts. (jgarantmc.com)
  • Commonly, tomography is used in combination with x-ray technology, in order to manipulate and reconstruct 2D x-rays into tomographic images which are used to develop a 3D model for the external and internal part surface and structures. (jgarantmc.com)
  • For x-ray computed tomography, an x-ray source must be positioned on the opposite side of the detector panel. (jgarantmc.com)
  • Although computed tomography is one of the most common type of industrial tomography, there are many other types. (jgarantmc.com)
  • Background/Aim: To analyze the internal morphology of mandibular incisors with two root canals using cone-beam computed tomography (CBCT). (balkandentaljournal.com)
  • 2. Zhengyan Y, Keke L, Fei W, Yueheng L, Zhi Z. Cone-beam computed tomography study of the root and canal morphology of mandibular permanent anterior teeth in a Chongqing population. (balkandentaljournal.com)
  • Evaluation of the Root and Canal Morphology of Mandibular Permanent Anterior Teeth in an Iranian Population by Cone-Beam Computed Tomography. (balkandentaljournal.com)
  • Use of cone beam computed tomography in endodontics. (balkandentaljournal.com)
  • The Computed Tomography (CT) Certificate can lead to a Bachelor's degree in Radiologic and Imaging Sciences for students who meet the specific Bachelor's degree requirements. (valenciacollege.edu)
  • Computed tomography (CT) uses x rays and computers to gather anatomic information from a sectional plane of the body and present it as a three-dimensional image. (valenciacollege.edu)
  • The field of computed tomography is continuously changing to provide diagnoses of disease processes that cannot be demonstrated by general radiographic methods. (valenciacollege.edu)
  • Program content follows the American Society of Radiologic Technologists (ASRT) curriculum to prepare program completers to take the ARRT certification exam in Computed Tomography. (valenciacollege.edu)
  • The aim of this retrospective, clinical study was to evaluate the accuracy of working length (WL) determination in preexisting cone-beam computed tomography (CBCT) images and compare them with the data of clinical working length determination by using an electronic apex locator (EAL) in treated teeth, recorded in the patients' cards. (edu.pl)
  • Janner SFM, Jeger FB, Lussi A, Bornstein MM. Precision of endodontic working length measurements: A pilot investigation comparing cone-beam computed tomography scanning with standard measurement techniques. (edu.pl)
  • Jeger FB, Janner SFM, Bornstein MM, Lussi A. Endodontic working length measurement with preexisting cone-beam computed tomography scanning: A prospective, controlled clinical study. (edu.pl)
  • Üstün Y, Aslan T, Şekerci AE, Sağsen B. Evaluation of the Reliability of Cone-beam Computed Tomography Scanning and Electronic Apex Locator Measurements in Working Length Determination of Teeth with Large Periapical Lesions. (edu.pl)
  • de Morais ALG, de Alencar AHG, de Araújo Estrela CR, Decurcio DA, Estrela C. Working length determination using cone-beam computed tomography, periapical radiography and electronic apex locator in teeth with apical periodontitis: A clinical study. (edu.pl)
  • Ghule KD, Naik S. Comparing the accuracy of cone-beam computed tomography and electronic apex locator for root canal length determination in primary teeth. (edu.pl)
  • Rayapudi N, Challa P, Gandikota CS, Yudhistar PV, Tircoveluri S. A comparative study of linear measurements of facial skeleton using computed tomography and traditional cephalometry. (apospublications.com)
  • The objectives of the study were to compare the measurements from human skulls and their images from cephalometric radiographs and computed tomography (CT) scanograms in order to gauge the potential use of CT in routine clinical practice. (apospublications.com)
  • Computed tomography (CT) is a digital X-ray imaging technology that utilizes a slim beam of X-rays to quickly rotate around a patient's body, creating signals that the device's computer processes to develop cross-sectional pictures, or "slices. (cityofedmontoninfill.ca)
  • Lung, Pleura, Pneumothorax, Thoracotomy, Trauma, Penetrating, Imaging INTRODUCTION The added diagnostic value of computed tomography (CT) over chest X-ray (CXR) in patients with blunt trauma to the chest has been extensively verified [1, 2]. (deepdyve.com)
  • A single 2 mm transverse peripheral quantitative computed tomography 'slice', 10 mm proximal from the distal limit of the sagittal ridge of the distal metatarsal epiphysis was obtained from 14 2-year-old Thoroughbred fillies (7 exercised and 7 controls). (orthovetsupersite.org)
  • Contrast-enhanced computed tomography (CECT) has been proposed as a suitable alternative, but validation studies are currently lacking. (orthovetsupersite.org)
  • This article addresses the clinical application of magnetic resonance imaging (MRI) and computed tomography (CT) as applied to the standing equine patient. (orthovetsupersite.org)
  • No studies describing computed tomography (CT) features of different tarsal lesions in horses with tarsal lameness are reported. (orthovetsupersite.org)
  • The aim of this study was to determine and compare the sensitivity and specificity of 3-Tesla magnetic resonance imaging (3-T MRI) and computed tomography arthrography (CTA) to identify structural cartilage defects in the equine MCP/MTP joint. (orthovetsupersite.org)
  • Computed tomography (CT) is increasingly accessible in equine referral hospitals. (orthovetsupersite.org)
  • To obtain a better study and surgical planning, computed tomography was performed to observe the heart located cranially in the pericardial cavity. (bvsalud.org)
  • However, computed tomography was important for providing a better study of case and for the adoption of median celiotomy as a treatment. (bvsalud.org)
  • In early 2011 NIOSH posted a blog entry commenting on the preliminary results from the National Lung Screening Trial (NLST), funded by the National Cancer Institute, that found a 20.3% reduction in deaths from lung cancer among current or former heavy smokers who were screened with low-dose helical computed tomography (CT) versus those screened by chest X-ray (CXR). (cdc.gov)
  • In patients with occult hemorrhage or stable patients with active overt bleeding, multiphasic computed tomography should be performed after VCE or CTE to identify the source of bleeding and to guide further management. (medscape.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)
  • Detection of various anatomic patterns of root canals in mandibular incisors using digital periapical radiography, 3 cone-beam computed tomographic scanners, and micro-computed tomographic imaging. (balkandentaljournal.com)
  • Yılmaz F, Kamburoğlu K, Şenel B. Endodontic Working Length Measurement Using Cone-beam Computed Tomographic Images Obtained at Different Voxel Sizes and Field of Views, Periapical Radiography, and Apex Locator: A Comparative Ex Vivo Study. (edu.pl)
  • Introduction: The purpose of this study was firstly to compare the impact of radiographs, cone-beam computed tomographic (CBCT) imaging, and 3D Endo software (Dentsply Sirona, Ballaigues, Switzerland) on the assessment of root canal anatomy and radiographic quality of endodontic treatment and secondly to assess stress levels in the same cohort of residents performing endodontic treatment. (kcl.ac.uk)
  • Results of clinical, radiographic, nuclear scintigraphic, and computed tomographic examinations, and serum and synovial concentrations of biochemical markers of bone metabolism were compared between groups. (avma.org)
  • Although chest radiographic findings are normal in most patients, chest radiography is the first radiologic examination performed. (medscape.com)
  • As a result of the higher radiation dose of CT, conventional or digital radiography should be used to monitor the passage of stones if radiographic follow-up studies are indicated and if the stone is visible on conventional radiographs. (medscape.com)
  • Ysio Max enables radiographic and tomographic exposures of the whole body including: skull, chest, abdomen, and extremities and may be used on pediatric, adult and bariatric patients. (fda.gov)
  • Radiographic Contrast Agents and Contrast Reactions Radiopaque contrast agents are often used in radiography and fluoroscopy to help delineate borders between tissues with similar radiodensity. (msdmanuals.com)
  • A CT scan makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual 'slices') of specific areas of a scanned object, allowing the user to see inside the object without cutting. (fully3d.org)
  • MATERIALS AND METHODS: In 50 consecutive patients, preoperative chest radiographs and computed tomographic (CT) scans were scored by four radiologists for features related to the severity and distribution of emphysema end compared with clinical improvement in forced expiratory volume in 1 second (FEV 1 ), arterial partial pressure of oxygen, end exercise tolerance 6 months after surgery. (wustl.edu)
  • Conventional chest radiography is generally the first imaging procedure performed in patients with respiratory symptoms, and frontal and lateral chest radiographs may reveal changes of emphysema . (medscape.com)
  • Conventional radiography, as shown in the image below, is often performed as a preliminary examination in patients with abdominal pain possibly resulting from urinary calculi. (medscape.com)
  • Ysio Max is also designed to be used with conventional film/screen or Computed Radiography (CR) cassettes. (fda.gov)
  • For conventional radiography, an x-ray beam is generated and passed through a patient to a piece of film or a radiation detector, producing an image. (msdmanuals.com)
  • Objective -To compare the detection of pulmonary nodules by use of 3-view thoracic radiography and CT in dogs with confirmed neoplasia. (avma.org)
  • Procedures -3 interpreters independently evaluated 3-view thoracic radiography images. (avma.org)
  • Sensitivity, specificity, positive predictive value, and negative predictive value were calculated for thoracic radiography (with CT as the gold standard). (avma.org)
  • The 4 dogs that were negative for nodules on thoracic radiography but positive on CT were all large-breed to giant-breed dogs with osteosarcoma. (avma.org)
  • Computed tomographic scans of the thorax were obtained and evaluated by a single interpreter. (avma.org)
  • In this study we examined the effect of a 15% increase in extracellular fluid volume on lung density, lung volumes, nitrogen washout, chest radiographs and computerized tomographic (CT) scans of the thorax in 5 volunteers. (mcmaster.ca)
  • Prior trials of screening chest radiography and sputum samples have not shown a decrease in lung cancer mortality, but CT scans could help identify lung cancer at an earlier, more treatable stage. (the-hospitalist.org)
  • Tomographic scans give more info than X-rays. (cityofedmontoninfill.ca)
  • MRI generates accurate images of structures and identifies slight irregularities that radiography and CT scans can not. (cityofedmontoninfill.ca)
  • We offer a range of radiography services, including X-rays, CT scans, and MRI scans. (kfh.rw)
  • The facility has the only CT scanner with 128 slices capacity in the country, which can perform many complex procedures, including Computed tomographic angiographies (demonstrating the vessels clearly), Virtual Colonoscopies, Bone mineral Densitometry, Virtual Bronchoscopy, CT fluoroscopy to guide interventional procedures, Dynamic studies involving the head, Chest & abdomen other Routine CT scans. (kfh.rw)
  • The diagnostic evaluations mainly consisted of further imaging: diagnostic CT, PET-CT scans and chest radiography. (cdc.gov)
  • Conclusions and Clinical Relevance -CT was more sensitive than radiography for detection of pulmonary nodules. (avma.org)
  • These tomographic images are then reconstructed using a software, into a 3D model. (jgarantmc.com)
  • The volume of the fusion mass was determined from computed tomographic images. (elsevierpure.com)
  • Evaluation of working length determination based on the analysis of cone-beam computed tomographic images and an electronic apex locator: a retrospective study. (edu.pl)
  • have largely replaced contrast studies because their tomographic images provide better anatomic localization of an abnormality. (msdmanuals.com)
  • For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object. (bvsalud.org)
  • However, in most studies, the only tool used to assess the lunate itself has been plain radiography that neither reveals critical architectural details (demonstrated by computed tomographic scan) nor the vascular status (demonstrated by magnetic resonance imaging). (thieme-connect.com)
  • CTMT 2332, RADR 2340, and ARRT registered in radiography or registry eligible, or instructor permission. (dcccd.edu)
  • This Advanced Technical Certificate Program is designed for individuals who are currently certified in Radiography (ARRT) or Radiation Therapy (ARRT) or Nuclear Medicine Technology (ARRT or NMTCB). (valenciacollege.edu)
  • The use and implementation of computer aided tomographic techniques in the late 1970's allowed users to access an innovative technology for significant contributions for medical applications. (jgarantmc.com)
  • 15. Leoni GB, Versiani MA, Pécora JD, Damião De Sousa-Neto M. Micro-computed tomographic analysis of the root canal morphology of mandibular incisors. (balkandentaljournal.com)
  • A total of 96.4% of the positive screening results in the low-dose CT group and 94.5% in the radiography group were false positive results. (nih.gov)
  • Of those screened with CT, 40% had a positive screening test at some point, more than three times the rate of chest radiography, and 96.4% of these were false-positives, which was similar to chest radiography. (the-hospitalist.org)
  • Peritoneopericardial hernia is often diagnosed through radiography and ultrasound, and these imaging tests proved to be sufficient for the diagnosis in this report. (bvsalud.org)
  • A CT technologist must be able to perform computed tomographic procedures without constant supervision to technical detail. (valenciacollege.edu)
  • Plain radiography may not detect the thin-walled cysts identified on CT and may underestimate the extent of the disease. (medscape.com)
  • This course is designed to establish thorough knowledge pertaining to anatomical structures and systems most often evaluated through general radiography. (wellspan.org)
  • Skill development in the operation of computed tomographic equipment, focusing on routine protocols, image quality, quality assurance and radiation protection. (dcccd.edu)
  • Prospective, multicenter, randomized trial of low-dose (roughly one-fifth the radiation of traditional CT) annual CT versus annual chest radiography. (the-hospitalist.org)
  • Fully3D is the international community for the people who are interested in tomographic image formation in radiology and nuclear medicine. (fully3d.org)
  • The Advanced Technical Certificate (ATC) in CT is for health professionals who have completed an associate degree, or higher, in Radiography, Radiation Therapy or Nuclear Medicine Technology from a regionally accredited institution. (valenciacollege.edu)
  • The pathology report with presentation is a self directed project designed to enhance student knowledge of pathological conditions diagnosed and monitored through general radiography exams. (wellspan.org)
  • Computed tomographic enterography should be performed in patients with suspected obstruction before VCE or after negative VCE examinations. (medscape.com)
  • Il s'agit d'une étude rétrospective descriptive et analytique, multicentrique portant sur des patients de moins de 5ans pris en charge pour une affection neurochirurgicale de Janvier 2019 à Décembre 2021 à Libreville. (bvsalud.org)
  • The aim of this study is to determine the incidence and relook at the role of radiography in upper cervical spine injury in blunt head injury in a rural hospital setting. (ispub.com)
  • Leur incidence en Afrique sub-saharienne et plus particulièrement au Gabon est mal connue. (bvsalud.org)
  • Results of radiography performed to determine external callus and lysis grade and percentage defect ossification at 16 weeks were compared with scintigraphy results. (avma.org)
  • The rate of positive screening tests was 24.2% with low-dose CT and 6.9% with radiography over all three rounds. (nih.gov)
  • Soon after, tomographic techniques were utilized for industrial applications, enabling users to identify and locate internal failures, without cutting open the industrial part. (jgarantmc.com)
  • The student will review radiography equipment and become familiar with the radiographer's roles and responsibilities within a health care organization(s). (wellspan.org)