Results 251 to 260 of about 98,165 (301)
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Spectral strain estimation techniques for tissue elasticity imaging
2021This research project examines the applicability of novel spectral domain strain estimation algorithms to improve the clinical value of tissue elasticity images. Pathological changes can be frequently correlated to changes in soft tissue stiffness. Despite the fact that many cancers, including those found in the breast and prostate, often manifest ...
Kenneth Leon Hoyt, Flemming Forsberg
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A New Technique For Elastic Registration Of Tomographic Images
SPIE Proceedings, 1988A simple algorithm for geometric registration of tomographic images was developed to be applied to images of the heart obtained by Positron Emission Tomography (PET). Commonly, image misregistrations are not only caused by simple positioning differences like translation and rotation, but also by deformations that cannot be expressed by simple geometric
Osman Ratib +3 more
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Dynamic elastic image stretching technique applied to thermographic images
IEE Proceedings I Communications, Speech and Vision, 1990A method of automatically ‘stretching’ a series of hand thermograms to a standard form is described. It is based on an elastic model which has the iterative and co-operative properties of relaxation labelling, while not requiring large storage space for label updating.
M. Varga, R. Hanka
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Improved contralateral subtraction images by use of elastic matching technique
Medical Physics, 2000A contralateral subtraction technique has been developed to assist radiologists in the detection of asymmetric abnormalities such as lung nodules on a single chest radiograph. With this technique, a contralateral subtraction image is obtained by subtracting a right/left reversed “mirror” image from the original one. The lesions in the subtraction image
Q, Li, S, Katsuragawa, K, Doi
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Ultrasound in Medicine & Biology, 2021
Our purpose was to compare the diagnostic performances of strain elastography (SE) and shear-wave elastography (SWE) in differentiating breast lesions by combining with conventional ultrasound (US). A total of 198 patients with 203 breast lesions underwent conventional US, SE and SWE examination using MyLab 90 and Aixplorer US systems.
WanRu, Jia +5 more
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Our purpose was to compare the diagnostic performances of strain elastography (SE) and shear-wave elastography (SWE) in differentiating breast lesions by combining with conventional ultrasound (US). A total of 198 patients with 203 breast lesions underwent conventional US, SE and SWE examination using MyLab 90 and Aixplorer US systems.
WanRu, Jia +5 more
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Surface matching of multimodality image volumes by a fuzzy elastic registration technique
Computerized Medical Imaging and Graphics, 1998Multimodality image registration is useful in diagnostic imaging and treatment planning for radiation therapy. In this paper, we present a technique which registers the surfaces of two volumes acquired by different medical imaging modalities. We represent the image volumes in terms of their surface elements known as tiles.
A, Butt +3 more
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Supersonic shear imaging: a new technique for soft tissue elasticity mapping
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004Supersonic shear imaging (SSI) is a new ultrasound-based technique for real-time visualization of soft tissue viscoelastic properties. Using ultrasonic focused beams, it is possible to remotely generate mechanical vibration sources radiating low-frequency, shear waves inside tissues.
Jérémy, Bercoff +2 more
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A new technique for real-time freehand ultrasonic elasticity imaging
The Journal of the Acoustical Society of America, 2001A method for high-speed, freehand ultrasonic elasticity imaging will be described. The method is based on a modified block matching technique. The modification serves two purposes. First, in order to achieve real-time performance a forward prediction mechanism is used to reduce the computational load that a conventional block matching technique ...
Yanning Zhu, Timothy Hall, Larry Cook
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Image correction techniques for 3D interactive surface using a transparent elastic gels
Proceedings of the International Working Conference on Advanced Visual Interfaces, 2012There are many kinds of three dimensional displays that have been developed to date. Most of them provide 3D visual sensation to the users, but they do not provide 3D haptic feedback. On the other hand, an interactive surface system using transparent gels enables users to touch a 3D surface.
Taro Tokui +2 more
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Three-dimensional imaging of carbon using an elastic scattering coincidence technique
Journal of Applied Physics, 2009A setup is described for an elastic scattering coincidence technique installed at an ion microprobe facility. This setup is developed for three-dimensional (3D) profiling of light elements in thin transmission targets. In the present paper, 3D imaging of carbon is demonstrated.
Bogdanović Radović, Ivančica +3 more
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