AngiographyPositron emission tBeam computed tomographyScanMultisliceTomographicHelical computedCross-sectionalContrast-enhancedThoracicCBCTUltrasonographyAxialScreening for lung cancerUltrasoundElectronChestMultidetectorPeripheralDiagnosticPreoperativeTemporal resolutionNoninvasivePhantomsImagingLung-cancerPatientsTransmissionBoneClinicalPleuralObservational studyDensityImageStudyScannerStructuresObjectiveConventionalMethodsAdventThrombosisTaperArticle
Angiography9
- Combination of isometric imaging in any anatomic planes, CT angiography, multiphase dynamic study, 2or 3dimensional image reconstruction has made radiologic diagnoses more accurate and has provided more useful information for preoperative surgical design and educational purposes. (koreamed.org)
- 4. Foley WD, Karcaaltincaba M. Computed tomography angiography : principles and clinical applications. (koreamed.org)
- Radiologic modalities used for assessment include lung scintigraphy, digital subtraction pulmonary angiography (DSPA), pulmonary computed tomography angiography (PCTA), and pulmonary magnetic resonance angiography (PMRA). (medscape.com)
- Computed tomography (CT) pulmonary angiography is highly specific for pulmonary embolism. (bmj.com)
- Our experimental design was biased in favor of digital subtraction angiography in that if an aneurysm was found by CT angiography but not by digital subtraction angiography and if the lesion was not treated surgically, then the lesion was presumed not to exist and that patient was dropped from the study. (ajnr.org)
- Coronary computed tomography angiography with a consistent dose below 1 mSv using prospective electrocardiogram triggered high-pitch spiral acquisition. (ejgm.org)
- Coronary angiography with multi-slice computed tomography. (ejgm.org)
- A strong clinical suspicion of aneurysm may be validated by the use of several diagnostic studies, including computed tomography (CT) scanning, lumbar puncture, magnetic resonance imaging (MRI), and cerebral angiography. (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)
Positron emission t2
- Positron emission tomography-computed tomography is a hybrid CT modality which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed (co-registered) image. (wikipedia.org)
- Bury T, Barreto A, Daenen F et al (1998) Fluorine-18 deoxyglucose positron emission tomography for the detection of bone metastases in patients with non-small cell lung cancer. (springer.com)
Beam computed tomography5
- To quantitatively compare condylar morphology using cone beam computed tomography (CBCT) and multislice spiral computed tomography (MSCT) virtual three-dimensional surface models. (nih.gov)
- The aim of this study was to evaluate, using cone-beam computed tomography (CBCT), transportation and centralization of different nickel-titanium (NiTi) rotary instruments. (opendentistryjournal.com)
- AB The measurements from registered images obtained from Cone Beam Computed Tomography (CBCT) and a photogrammetric sensor are used to track three-dimensional shape variations of orthodontic patients before and after their treatments. (sedentexct.eu)
- AB OBJECTIVE: The most common diagnostic imaging modalities for cross-sectional imaging in dental implant planning are currently cone-beam computed tomography (CBCT) and multislice CT (MSCT). (sedentexct.eu)
- Rationale and design of Prospective Army Coronary Calcium (PACC) study: utility of electron beam computed tomography as a screening test for risk factor modification among young, asymptomatic, active-duty United States Army personel. (ejgm.org)
Scan10
- formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. (wikipedia.org)
- This may also be used on the brain, where CT perfusion imaging can often detect poor brain perfusion well before it is detected using a conventional spiral CT scan. (wikipedia.org)
- The most important advantages of multidetector spiral CT (MDCT) are its rapid scan speed and the increased zaxis spatial resolution. (koreamed.org)
- The system is also designed to be able to rotate with 0.28 s and makes possible a scan speed coverage of up to 23 cm/s. (siemens-healthineers.com)
- In the presence of a sternum injury with a clavicle fracture or any open clavicle fracture, we recommend the routine use of a contrast-enhanced spiral thoracic computed tomography scan to aid in the diagnosis of a great vessel injury. (elsevierpure.com)
- To evaluate the spiral chest computed tomography (CT) scan findings in patients with multipletrauma during the COVID-19 pandemic. (magiran.com)
- The results suggest that an optimised cycloidal-spiral data acquisition and analysis scheme enables high-quality μ-CT images to be reconstructed with a spatial resolution which is isotropic and better than that achieved with rotation-only scans (Fig. 2), while also being fully fly scan compatible and therefore time-efficient. (cern.ch)
- Quantitative computed tomography is a procedure which uses CT scan for quantitative assessment of the bones or bone mineral density. (boneandspine.com)
- a) Contrast-enhanced computed tomography scan axial image at the region of the pelvis showed a large heterogeneous enhancing mass occupying the uterus and protruding into the upper vagina (arrows). (cytojournal.com)
- Nonenhanced computed tomography scan of a woman's brain following an eclamptic seizure, showing hypodense areas involving white matter of the occipital lobes and the high frontal/parietal lobes. (medscape.com)
Multislice2
- Composition of coronary atherosclerotic plaques in patients with acute myocardial infarction and stable angina pectoris determined by contrast-enhanced multislice computed tomography. (koreamed.org)
- Comparison between cone-beam and multislice computed tomography depicting mandibular neurovascular canal structures. (sedentexct.eu)
Tomographic3
- To determine the range of growth rates of stage I lung cancers prior to treatment by using volumetric measurement at serial chest computed tomographic (CT) examinations. (rsna.org)
- STUDY DESIGN: One hundred spiral computed tomographic (CT) preoperative examinations of patients requiring assessment the lower jaw before implant placement were retrospectively evaluated to determine anatomical variations in bone morphology in the submandibular fossa region. (sedentexct.eu)
- Computed tomographic enterography should be performed in patients with suspected obstruction before VCE or after negative VCE examinations. (medscape.com)
Helical computed1
- Liver imaging with multidetector helical computed tomography. (koreamed.org)
Cross-sectional5
- The various NiTi file systems commercially available have different characteristics in terms of their cross-sectional shape, rake angle, taper, depth of flutes, and number of spirals or flutes per unit length - all these conditions may affect file behavior [ 8 , 10 , 11 ]. (opendentistryjournal.com)
- For instance, Mtwo instruments have an S-shaped, cross-sectional design and a positive rake angle with 2 cutting edges and low radial contact to increase their flexibility and improve performance inside the root canal [ 12 , 13 ]. (opendentistryjournal.com)
- RaCe instruments have a triangular cross-sectional design with sharp, alternating cutting edges that enhance cutting efficiency while producing a more centered canal shape [ 14 - 17 ]. (opendentistryjournal.com)
- Design We performed a cross-sectional prospective study in AVS patients presenting to our Emergency Department (ED) from February 201. (researchgate.net)
- Such studies have provided valuable information on the processes and consequences of airway remodelling, but require access to surgical or autopsy samples of the airways and are necessarily cross-sectional in design. (ersjournals.com)
Contrast-enhanced1
- A contrast-enhanced computed tomography was done, which showed a mass occupying the uterus and part of the mass is protruding into the upper vagina. (cytojournal.com)
Thoracic1
- Thoracic high-resolution computed tomography (HRCT) has been clearly demonstrated to be more sensitive and specific than CXR for the diagnosis of asbestos-related diseases 5 . (ersjournals.com)
CBCT1
- STUDY DESIGN: The sample consisted of 28 patients who had undergone CBCT and MSCT. (sedentexct.eu)
Ultrasonography1
- Percutaneous transhepatic cholangiography (PTC) is now rarely employed for purely diagnostic purposes and has been largely replaced by noninvasive imaging techniques, such as ultrasonography (US), computed tomography, magnetic resonance cholangiography (MRC), and endoscopic retrograde cholangiography (ERC). (kipdf.com)
Axial4
- Bastidas A, Garcia Herreros P, Saavedra A, Sánchez E. Métodos diagnósticos no invasivos en cáncer pulmonar primario : segunda parte: tomografía axial computarizada de tórax y tomografía con emisión de positrones. (asoneumocito.org)
- En la búsqueda de este objetivo en la actualidad se dispone de varios métodos diagnósticos no invasivos entre los que se encuentra la citología de esputo, la radiografía de tórax, la tomografía axial computarizada y la tomografía con emisión de positrones. (asoneumocito.org)
- The original CT scans designed to assess airway structure involved thin-slice images (typically 1-2 mm axial), which were acquired using a "stop and shoot" protocol and were reconstructed using an edge-enhancing algorithm, known as the high-resolution CT (HRCT) protocol. (ersjournals.com)
- CAT stands for Computer Axial Tomography. (safarivet.com)
Screening for lung cancer2
- Mass screening for lung cancer with mobile spiral computed tomography scanner. (asoneumocito.org)
- To review the evidence on screening for lung cancer with low-dose computed tomography (LDCT) to inform the US Preventive Services Task Force (USPSTF). (uspreventiveservicestaskforce.org)
Ultrasound4
- A thromboembolic complication was defined as a new arterial or deep venous thrombosis, catheter thrombosis, or pulmonary embolism diagnosed by ultrasound or spiral chest computed tomography. (biomedcentral.com)
- In this work, spiral peripheral vascular and arteriovenous grafts were compared with conventional grafts using ultrasound and computational methods to identify their haemodynamic differences. (dundee.ac.uk)
- This study applied ultrasound and computational methods to vascular-graft phantoms in order to characterise the flow field induced by spiral and conventional peripheral vascular and arteriovenous grafts. (dundee.ac.uk)
- Today, following extensive training, radiologists direct an array of imaging technologies (such as ultrasound , computed tomography (CT) and magnetic resonance imaging ) to diagnose or treat disease. (wikidoc.org)
Electron1
- Electron beam tomography (EBT) is a specific form of CT in which a large enough X-ray tube is constructed so that only the path of the electrons, travelling between the cathode and anode of the X-ray tube, are spun using deflection coils. (wikipedia.org)
Chest1
- All patients with multiple trauma who had undergone a chest spiral CT were includedin this study. (magiran.com)
Multidetector2
- The computed tomography (CT) technology has recently leaped with the advent of the multidetector row technique since the introduction of spiral CT. (koreamed.org)
- On spiral multidetector CT, a volume of tissue is scanned. (boneandspine.com)
Peripheral2
- Peripheral lung cancer: screening and detection with low-dose spiral CT versus radiography. (rsna.org)
- pQCT denotes peripheral quantitative computed tomography which is done on the appendicular skeleton, such as the arms or legs. (boneandspine.com)
Diagnostic1
- Noninvasive coronary anjiography by 320-row computed tomography with lower radiation exposure and maintained diagnostic accuracy: comparison of results with cardiac catheterization in a head-to-head pilot investigation. (ejgm.org)
Preoperative2
- We designed a prospective observational study to evaluate whether preoperative ROTEM can identify patients at increased risk for postoperative thromboembolic complications after major non-cardiac surgery. (biomedcentral.com)
- The present study was designed to determine the ability of preoperative ROTEM analysis to predict postoperative thromboembolic complications in patients undergoing major non-cardiac surgery. (biomedcentral.com)
Temporal resolution1
- Some designs use two X-ray sources and detector arrays offset by an angle, as a technique to improve temporal resolution. (wikipedia.org)
Noninvasive2
- 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)
- Noninvasive methods are required to further investigate the pathogenesis of airway wall remodelling, to assess changes over time, and to allow the assessment of new therapeutic interventions designed to attenuate or reverse these structural changes. (ersjournals.com)
Phantoms1
- Imaging phantoms, or simply "phantoms", are specially designed that when scanned respond in a similar manner to human tissues and organs would. (boneandspine.com)
Imaging2
- Spinning tube, commonly called spiral CT, or helical CT, is an imaging technique in which an entire X-ray tube is spun around the central axis of the area being scanned. (wikipedia.org)
- The Journal of X-Ray Science and Technology is an international journal designed for the diverse community (biomedical, industrial and academic) of users and developers of novel x-ray imaging techniques. (iospress.com)
Lung-cancer6
- Early Lung Cancer Action Project: overall design and findings from baseline screening. (asoneumocito.org)
- Computed tomography screening and lung cancer outcomes. (asoneumocito.org)
- Pastorino U, Bellomi M, Landoni C, De Fiori E, Arnaldi P, Picchio M, Pelosi G, Boyle P, Fazio F. Early lung-cancer detection with spiral CT and positron emission tomogrphy in heavy smokers: 2-year results. (asoneumocito.org)
- The randomised design was disturbed by excluding those with true-positive (lung cancer) and false-positive screening results from the analysis. (bmj.com)
- The development of low-dose spiral computed tomography (CT) has rekindled hope that effective lung cancer screening might yet be found. (columbia.edu)
- This review will provide insight into the current discussion of the effectiveness of lung cancer screening and assesses the potential of state-of-the-art computer-aided design developments. (columbia.edu)
Patients2
- Consequently this work supports the hypothesis that spiral grafts may decrease outflow stenosis and hence improve patency rates in patients. (dundee.ac.uk)
- 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)
Transmission1
- Tomography using x-ray transmission and a computer algorithm to reconstruct the image. (lookformedical.com)
Bone2
- In recent years, better CT technology and the advantages of CT over DXA in the differentiation of cortical and trabecular bone mineral density and others, the use of quantitative computed tomography in musculoskeletal research studies is increasing. (boneandspine.com)
- Quantitative computed tomography is used to quantify bone mineral density in the spine, proximal femur, forearm, and tibia. (boneandspine.com)
Clinical2
- Fueled by the FAST CARE platform, the SOMATOM Definition AS is designed to help maximize clinical outcome and to raise patient-centric productivity. (siemens-healthineers.com)
- Grafts designed to generate a single spiral flow in the distal anastomosis have been introduced in clinical practice and are known as spiral grafts. (dundee.ac.uk)
Pleural1
- The aim of this study was to describe the most relevant parameters of asbestos exposure linked to pleural plaques and asbestosis diagnosed by high-resolution computed tomography (HRCT). (ersjournals.com)
Observational study1
- DESIGN: Prospective observational study. (crashingpatient.com)
Density2
- In spine, quantitative computed tomography gauges mineral density is gauged from analyzing the vertebral bones. (boneandspine.com)
- Figure 2 shows three color filters that are designed to show cartilage density as a different color spectrum than the spinal cord. (safarivet.com)
Image3
- The flow within the vascular-graft models was simulated with computed tomography based image-guided modelling for further understanding of secondary flow motions and comparison with the experimental results. (dundee.ac.uk)
- Computed tomography utilizes X-rays and provides an image which is based on the linear X-ray absorption coefficients of the tissues through which it passes. (boneandspine.com)
- The following is a computed tomography (CT) image of the brain in a woman who suffered an eclamptic seizure. (medscape.com)
Study4
- The study design was a randomised controlled trial. (bmj.com)
- Study design and setting Retrospective study in a tertiary referral center. (researchgate.net)
- Study design: Case series with chart review. (researchgate.net)
- In this study, we develop an implementation of Katsevich's inversion formula without computing PI segment. (iospress.com)
Scanner1
- The current pet CT scanner at Safari computes about 2000 different shades of grey, and each shade can be assigned a different color. (safarivet.com)
Structures1
- The inner ear contains three distinct structures, the cochlea (spiral tube), vestibule, and three semicircular canals. (petplace.com)
Objective1
- In 2001, Bégin and Christman 10 highlighted the need for an objective and independent measurement of disease activity, such as HRCT, but emphasised that computed tomography (CT) scanning was not yet a "gold standard", despite its higher sensitivity compared with CXR, due to the absence of clearly established exposure-response relationships. (ersjournals.com)
Conventional1
- A double- triple- or tetra-spiral flow pattern was found in the outflow of the conventional graft, depending on model configuration and Reynolds number. (dundee.ac.uk)
Methods1
- METHODS: In total, 28 identical atlantoaxial joint models were created by digital printing from computed tomography images of a dog, and the specimens were divided into four groups of seven. (bvsalud.org)
Advent1
- Even the advent of spiral CT scanners, where the images can be acquired while the table continuously moves, did not change this approach significantly. (ersjournals.com)
Thrombosis1
- The results suggest that spiral grafts are associated with advanced local haemodynamics that may protect endothelial function and thereby may prevent their outflow anastomosis from neo-intimal hyperplasia and thrombosis. (dundee.ac.uk)
Taper1
- Many types of rotary root canal instruments have been introduced, varying in cross-section, blade and pitch design, and taper 8-10 . (bvsalud.org)
Article1
- 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)