Topic
Imaging technology
About: Imaging technology is a research topic. Over the lifetime, 1450 publications have been published within this topic receiving 26186 citations.
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31 Jul 2012
TL;DR: In this paper, a Talbot-effect-based imaging system consisting of these devices has been built up, in which there is only a phase grating without any absorption grating, and some small samples have been imaged on the system and their differential phase contrast images have been obtained.
Abstract: In this paper, the advance in the key devices of grating-based x-ray phase-contrast imaging technique, including a new x-ray tube, an x-ray phase grating, and an x-ray image detector assembly of dual function, has been introduced at Shenzhen University. A Talbot-effect-based imaging system consisted of these devices has been built up, in which there is only a phase grating without any absorption grating. Some small samples have been imaged on the system and their differential phase contrast images have been obtained. The simplification of the system can be favorable to the application progress of the grating-based x-ray imaging technology in the future.
8 citations
TL;DR: Dedicated breast CT is an emerging 3D isotropic imaging technology for breast, which overcomes the limitations of 2D compression mammography and limited angle tomosynthesis while providing some of the advantages of magnetic resonance imaging as mentioned in this paper.
Abstract: Dedicated breast CT is an emerging 3D isotropic imaging technology for breast, which overcomes the limitations of 2D compression mammography and limited angle tomosynthesis while providing some of the advantages of magnetic resonance imaging. This first installment in a 2-part review describes the evolution of dedicated breast CT beginning with a historical perspective and progressing to the present day. Moreover, it provides an overview of state-of-the-art technology. Particular emphasis is placed on technical limitations in scan protocol, radiation dose, breast coverage, patient comfort, and image artifact. Proposed methods of how to address these technical challenges are also discussed. KEY POINTS: • Advantages of breast CT include no tissue overlap, improved patient comfort, rapid acquisition, and concurrent assessment of microcalcifications and contrast enhancement. • Current clinical and prototype dedicated breast CT systems differ in acquisition modes, imaging techniques, and detector types. • There are still details to be decided regarding breast CT techniques, such as scan protocol, radiation dose, breast coverage, patient comfort, and image artifact.
8 citations
03 May 1998
TL;DR: In vivo catheter/endoscope based imaging of the gastrointestinal and pulmonary tracts has been demonstrated in a rabbit model and the ability of OCT to image cellular morphology in vivo was evaluated, an animal model was used.
Abstract: Optical coherence tomography (OCT) imaging can resolve many of the changes associated with neoplasia and may provide a tool for in vivo real-time evaluation of tissue and biopsy guidance to help improve the diagnosis of early neoplasias, resulting in more successful treatment. OCT is a new imaging technology that allows cross-sectional imaging of nontransparent tissue. A low-coherence Michelson interferometer is used to measure echo time delays of reflected light from scattering tissue. The light beam is scanned across the tissue to produce two- and three-dimensional data sets. This technique has been extensively applied to imaging in ophthalmology and more recently to nontransparent tissues. High-resolution and high-speed OCT imaging has been achieved using broad bandwidth mode-locked lasers as short-coherence light sources. Recently, in vivo catheter/endoscope based imaging of the gastrointestinal and pulmonary tracts has been demonstrated in a rabbit model. In order to evaluate the ability of OCT to image cellular morphology in vivo, an animal model was used. OCT imaging in vitro was also performed on a series of human tissues of varying degrees of neoplastic infiltration, including colon, cervix, uterus, and lung.
8 citations
Patent•
06 Sep 2006
TL;DR: In this article, the identification of disease target molecules and the development of imaging reagents and diagnostic assays specific to those molecules are described, as well as methods and reagents for identification of molecular targets specific to a disease or disease state, methods of imaging technology which can be used, and clinical indications for molecular imaging.
Abstract: The present invention describes both the identification of disease target molecules and the development of imaging reagents and diagnostic assays specific to those molecules. Described herein are methods and reagents for the identification of molecular targets specific to a disease or disease state, methods of imaging technology which can be used, the development of specific molecular imaging reagents, clinical validation of the imaging reagents, and clinical indications for molecular imaging.
8 citations
TL;DR: Terahertz radiation is an electromagnetic wave whose frequency is in the range of 0.1 THz~10 THz as discussed by the authors, and it has many potential applications in biomedical field, especially in tumor detection.
Abstract: Terahertz radiation is an electromagnetic wave whose frequency is in the range of 0.1 THz~10 THz. With its many features such as non-ionizing and resonance to many biomolecules, THz wave has great potential applications in biomedical field, especially in tumor detection. Terahertz imaging technology, as a new imaging technology in biomedical field, is studied by many research groups around the world. In this paper, we listed and analyzed many terahertz imaging methods in tumor detection, including terahertz scanning imaging, terahertz tomography, terahertz holography, and terahertz near-field imaging. We introduced the basic principle of these imaging methods and the works done by different groups worldwide. At last, we presented the prospect of terahertz imaging technology applied in biomedical field.
8 citations