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Volume CT information


Flat-panel Volume CT is a technique under development to make computed tomography images with improved performance (in particular, with improved spatial resolution). The key difference between volume CT and traditional CT is that volume CT uses a two-dimensional x-ray detector orientation (usually in a square panel orientation), to take multiple two-dimensional images. On the other hand, the conventional CT uses a one-dimensional x-ray detector orientation (a row of detectors) to take one-dimensional x-ray images.

A CT machine consists of an x-ray source, an x-ray detector, a series of moving stages (Gantry) and computers to assemble the x-ray data into an image. The x-ray beam used in volume CT is cone shaped, in contrast to the fan shaped beam of the regular CT scanner. This cone shape allows the beam to cover the two-dimensional detector panel.

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Volume CT

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improved spatial resolution). The key difference between volume CT and traditional CT is that volume CT uses a two-dimensional x-ray detector orientation (usually...

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CT scan

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A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed...

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Cone beam computed tomography

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tomography (or CBCT, also referred to as C-arm CT, cone beam volume CT, flat panel CT or Digital Volume Tomography (DVT)) is a medical imaging technique...

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Volume rendering

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typical 3D data set is a group of 2D slice images acquired by a CT, MRI, or MicroCT scanner. Usually these are acquired in a regular pattern (e.g., one...

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Rotational angiography

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image. Synonyms for rotational angiography include flat-panel volume CT and cone-beam CT. In order to acquire a 3D image with a fixed C-Arm, the C-Arm...

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Contrast CT

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imaged, the volume of contrast is tracked using a region of interest (abbreviated "R.O.I.") at a certain level and then followed by the CT scanner once...

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Lexus CT

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The Lexus CT (Japanese: レクサス・CT, Hepburn: Rekusasu CT) is a hybrid electric automobile sold by Lexus, a luxury division of Toyota, as a premium compact...

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Perfusion CT

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different parameters, such as BV (blood volume), BF (blood flow), MTT (mean transit time), and TTP (time to peak). CT Perfusion plays an important role in...

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Computed tomography angiography

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Computed tomography angiography (also called CT angiography or CTA) is a computed tomography technique used for angiography—the visualization of arteries...

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Hounsfield scale

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for describing radiodensity. It is frequently used in CT scans, where its value is also termed CT number. The Hounsfield unit (HU) scale is a linear transformation...

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Porosity

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are many ways to test porosity in a substance or part, such as industrial CT scanning. The term porosity is used in multiple fields including pharmaceutics...

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Coronary CT calcium scan

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A coronary CT calcium scan is a computed tomography (CT) scan of the heart for the assessment of severity of coronary artery disease. Specifically, it...

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Emphysema

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breathing problems and poor airflow. Without COPD, the finding of emphysema on a CT lung scan still confers a higher mortality risk in tobacco smokers. In 2016...

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Industrial computed tomography

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are then processed to create a 3D volume rendering of the external and internal geometries of the part. Industrial CT scanning technology was introduced...

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Constrictive pericarditis

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the principal echographic finding is changes in cardiac chamber volume. CT and MRI - CT scan is useful in assessing the thickness of pericardium, calcification...

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Tomography

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integrated physical phenomena, e.g. X-rays for both CT and angiography, combined CT/MRI and combined CT/PET. Discrete tomography and Geometric tomography...

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Positron emission tomography

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a computed tomography scanner (CT) and are known as PET-CT scanners. PET scan images can be reconstructed using a CT scan performed using one scanner...

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Computed tomography of the abdomen and pelvis

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tomography of the abdomen and pelvis is an application of computed tomography (CT) and is a sensitive method for diagnosis of abdominal diseases. It is used...

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Volume ray casting

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output of texture mapping VR due to higher accuracy of volume ray casting renderings. The CT scan of the crocodile mummy has resolution 3000×512×512...

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Ijad Madisch

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Society of North America (RSNA) in Chicago for the project "High-resolution volume CT imaging of tissue-engineered bone growth: correlation between imaging...

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Cancer screening

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Heuvelmans MA, et al. (February 2020). "Reduced Lung-Cancer Mortality with Volume CT Screening in a Randomized Trial". The New England Journal of Medicine...

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CT Fastrak

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Asylum Street in Hartford. A lengthy bridge was constructed over East Street (CT-175) and Allen Street in New Britain to eliminate former grade crossings....

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CT Connect

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CT Connect is a software product that allows computer applications to monitor and control telephone calls. This monitoring and control is called computer-telephone...

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Gulf Coast Medical Center

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better view. The department also has a state-of-the-art GE 128-slice HD Volume CT scanner, which is very beneficial to its stroke program. The hospital's...

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Virtual colonoscopy

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Virtual colonoscopy (VC, also called CT colonography or CT pneumocolon) is the use of CT scanning or magnetic resonance imaging (MRI) to produce two-...

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Fiber volume ratio

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V_{v}={\frac {({p_{ct}}-{p_{cm}})}{p_{ct}}}\!} where: V v {\displaystyle V_{v}} is the void volume ratio and p c t {\displaystyle p_{ct}} is the theoretical...

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Fogging phenomenon

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phenomenon in computerized tomography (CT) scanning of the head is vanishing signs of an infarct on the serial CT imaging in a patient with a recent stroke...

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Chandraketugarh

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Gangapur CT Duttapukur CT Digha CT Dhania CT Deulia CT Deara CT Chatta Baria CT Chandrapur CT Chak Barbaria CT Bira CT Betpuli CT Bara Bamonia CT Bamangachhi...

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