A 3D industrial CT system was designed on the base of single-source – single-detector. The CT system hardware consists of 3 motors, a data acquisition system, a computer unit, a gamma source and a radiation detector. In this patent, phantom has 3dimensional rotation capability using motors in the direction (R,,Z). R & Z motors were shifted with 0.01° step and the motor had 360° rotation potential with 0.04° step and more. The acquired 2D & 3D images showed high resolutions.
Recent years have witnessed an increased use of in vivo imaging techniques in both medicine and biomedical research. Positron Emission Tomography (PET) is a functional in vivo imaging technique relying on the metabolism of molecules which are injected into the blood stream and have a high chemical affinity to a specific biological substrate. These substances are labelled with positron emitters resulting in gamma rays which can be recorded outside the body using coincidence detection. Radiation can be detected using a variety of solutions, in terms of transducers and system geometries, and combined to produce images using suitable image reconstruction algorithms. The applications of PET imaging (e.g. cancer, brain function, cardiac function and gene expression) are currently benefiting from technological developments leading to the proposal of new PET systems. These are more sensitive, dedicated to imaging specific organs or research animals and are becoming multimodal. These advances are fostering new uses of PET, for example in biology labs to study the onset, progression and therapy of disease or to image the female breast. New materials and equipment are also, being developed allowing combining PET with other imaging techniques, such as MRI. The purpose of this review is to illustrate the most important inventions patented in PET since 2006 in areas concerning data acquisition and processing for human and research use of PET. Finally the manuscript will present the authors views about forthcoming developments in PET.
This paper reviewed some of the recent patents on the development of solid state detectors for medical imaging applications focused on nuclear medicine and X-Ray imaging systems. A series of solid state detectors including position sensitive avalanche photodiodes, APD arrays, silicon photomultipliers, amorphous silicon/selenium flat panel detectors, CCD cameras, CMOS sensors, etc., were addressed. These solid state detectors found wide applications in nuclear medicine imaging instruments including PET, SPECT etc., and in X-Ray medical imaging systems for diagnosis and therapy, including radiography, fluoroscopy, mammography, tomosynthesis, CT and dental imaging, etc. In addition, a discussion on some recently patented medical imaging systems employing solid state detectors was also presented.
Nuclear magnetic resonance (NMR) is widely used in physics, chemistry, biology, engineering and medicine because there is hardly another technique that is so informative for so many different types of applications. There can be few better examples of the complex and unanticipated interactions of basic research and technological innovation than the development of magnetic resonance imaging (MRI) techniques for medical diagnosis research. Functional magnetic resonance imaging (fMRI) extends conventional anatomical imaging to include localization of the brain areas active during perceptions, actions, emotions and cognitive tasks. The advantages of this new neuroimaging technique offer unprecedented opportunities for the investigation of human brain functional organization as well as medical applications. However, realization of these advantages requires new theoretical methods, analyses and novel approaches to old questions. Breaking new graound would be very difficult without the proper understanding of the MRI Physics offered by the analytical solutions to Bloch NMR flow equations. In this patent review, we have presented foundations and characteristics of models and methods used in magnetic resonance imaging with particular reference to functional mgnetic resonance imaging.
Cerebral aneurysms, especially wide-necked ones, pose a great threat to human health. With rapid technological advances in the field of endovascular treatment, wide-necked intracranial aneurysms are no longer a problem for endovascular therapists who can use balloon-remodeling technique, 3D coils, stents, covered stents and partially covered stents in the management of these aneurysms. However, stent-assisted technique has been increasingly used in the treatment of intracranial aneurysms with increased effects. This article reviews the use of stents and the stenting techniques in the treatment of intracranial wide-necked aneurysms, the pros and cons of different stenting techniques, and future developments in the form of patents.