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Tomography Articles & Analysis
96 articles found
Imaging modalities such as fundus photography, fundus autofluorescence, fluorescein angiography, and optical coherence tomography are available but typically require anesthesia. The saccadic vector optokinetic perimeter (SVOP), with its built-in eye-tracking, was designed to substitute for standard visual field testing in young children, but it still requires a degree of ...
CT imaging Gold nanoparticles also have good applications in CT (computed tomography) imaging. Because of its high atomic number, it can absorb X-rays and provide strong contrast images, so it is a contrast agent suitable for CT analysis. ...
These labeled amino acids serve as metabolic tracers in imaging modalities like positron emission tomography (PET) and magnetic resonance spectroscopy (MRS), enabling the detection of metabolic aberrations in tissues and aiding in the diagnosis of metabolic disorders. ...
γ-emitting isotopes are selected for diagnosis because the radiation they produce can be detected by specific instruments such as positron emission tomography (PET) or single-photon emission computed tomography (SPECT), assisting clinicians in accurately identifying lesions. ...
Electron Microscopy Electron tomography, single-particle reconstruction, and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) enable the visualization and analysis of the 3D structure and surfaces of nanocrystals at the atomic level. ...
Oxygen-18 Oxygen-18 (18O ) is a natural, stable isotope of oxygen and one of the important environmental isotopes. 18O is an important precursor for the production of fluorodeoxyglucose (FDG) for positron emission tomography (PET). Applications of Stable Isotopes Stable isotope products have been widely used in biomedical fields such as disease research, diagnosis and drug ...
Posluma (flotufolastat F 18) Posluma (flotufolastat F 18) is an 18F-labeled ligand and an imaging agent for the detection and localization of prostate cancer in PET (positron emission tomography). Posluma contains an imaging agent (18F) whose active ingredient is flotufolastat F 18 gallium bound to non-radioactive gallium. ...
Ultrasound imaging manufacturers are required to conduct hundreds of thousands of measurements of transducer power and intensity for research, development, regulatory compliance (FDA/IEC), and production quality assurance. This can delay new product introductions and force trade-offs between product performance and testing costs. High-resolution schlieren imaging provides real-time, 2D ...
Abstract The acoustic output from pulsed ultrasonic transducers has traditionally been analyzed with a hydrophone. Recently, a new faster technique has been developed using the principles of optical diffraction. This schlieren method allows the direct two-dimensional visualization of the ultrasonic beam as a pulse train. In order to obtain quantitative information in the form of temporal-average ...
Abstract Schlieren methods are well established to visualize acoustical, thermodynamic] and other phenomena] which influence the refractive index distribution in transparent media. We propose a quantitative schlieren method for the investigation of an ultrasonic field distribution generated by an electromagnetic (EM) shock wave source. In our schlieren system we have used a shiftable slit with ...
These "projections" can be used in computed tomography. We have compared the reconstructed pressure distribution in a plane obtained via tomographic inversion with those obtained by mechanically scanning a 0.5 mm calibrated hydrophone through the same plane. ...
Scintillation detectors are commonly used in medical imaging, such as positron emission tomography (PET) scans, and environmental monitoring. They are more sensitive than Geiger counters and can detect low-energy radiation. ...
It is particularly of use for lesions that present with large subchondral cysts in computed tomography scans (Fig 1 A-C) and degeneration of the overlying cartilage in MRI (Fig 2 A-C). ...
CASE PRESENTATION A 70-year-old female had a ground-level fall. Computed tomography imaging showed sacral insufficiency fractures in the left ala. ...
CASE PRESENTATION A 28-year-old male complained of left hip pain after a motor vehicle accident. There were no other significant injuries to be ...
Devices within these categories include endoscopy, optical coherence tomography (non-invasive imaging test), surgical guidance cameras, intraoral cameras, ophthalmological imaging, 3D dental scanners, short-pulse laser surgical systems, and much, much more. ...
Project participants Interventional Systems led the consortium comprised of Austrian and German companies: ACMIT Gmbh, CEMIT, Innovative Tomography Products GmbH (ITP), and the University Medical Center Freiburg, Radiology – Medicine Physics (UKLFR). ...
The next generation of positron emission tomography (PET) imaging agents will herald an age when PET will eclipse single photon emission computed tomog- raphy (SPECT) as the “go to” modality for molecular imaging. ...
Shear-induced Thrombogenic Potential Of A Novel Tri-leaflet Mechanical Heart Valve Prosthesis Compared To A Bioprosthetic Valve And A Bi-leaflet Mechanical Valve: In-vitro Study Of Complex Flow Patterns And Turbulence Leonardo Pietrasanta, Dominik Obrist. University of Bern, Bern, Switzerland. OBJECTIVE: Complex blood flow patterns and turbulence are principal determining factors for ...
Abstract Purpose This case report demonstrates the effectiveness of a combined unique soft contact lens design and hypertonic saline at reducing corneal edema symptoms. In addition, this case shows that using tomographic data is invaluable for detecting and monitoring of these presentations. ...