Abstract:
According to one embodiment, the invention relates to a light guide comprising a first surface which receives light, a second surface which emits light, wherein the second surface is parallel to the first surface and the second surface has a smaller area than the first surface, at least one edge surface which extends between the first surface and the second surface, and a light barrier which extends between the first surface and the second surface, wherein the light barrier divides the light guide into separate regions and reduces the propagation of light between the separate regions. The light guide can be used in a positron emission tomography scanner.
Abstract:
A low attenuation radioactive seed utilizing a core having a fluted or non-circular cross section is utilized for increasing the dose rate, decreasing the dwell times and improving the clinical outcomes by increasing the dose consistency throughout the treatment zone. The fluted or non-circular cross section core would increase the surface area for the deposition of the radioactive substance thereby increasing the therapeutic efficacy of the seed. In addition, the fluted or non-circular cross section may be designed in a manner to reduce photon emission attenuation by reducing the distance an inwardly directed photon would have to travel to traverse the core.
Abstract:
A radio frequency (RF) body coil assembly includes a coil support structure including an inner tubular member, an outer tubular member disposed radially outwardly from the inner tubular member, and a structural material disposed between the inner and outer tubular members, an RF coil mounted to an inner surface of the coil support structure, and a positron emission tomography (PET) detector assembly mounted to an outer surface of the coil support structure. A dual-modality imaging system is also described.
Abstract:
A system for producing preferential damage to hair exiting mammalian skin. A agent having an average diameter for enabling the agent to penetrate the hair duct is selected. The agent is designed to attach to, or become physically incorporated into, the hair shaft, the hair follicle, the hair bulb or the hair duct. The agent has an electromagnetic radiation absorption characteristic which enables the agent to absorb a first wavelength of electromagnetic radiation from a skin-penetrating electromagnetic radiation source, such as a laser. The agent is applied to the skin so that the agent penetrates the skin and attaches to or becomes physically incorporated into the hair shaft, the hair follicle, the hair bulb or the hair duct. The agent is exposed to the first wavelength of electromagnetic radiation and absorbs the first wavelength of electromagnetic radiation.
Abstract:
A radio frequency (RF) body coil assembly includes a coil support structure including an inner tubular member, an outer tubular member disposed radially outwardly from the inner tubular member, and a structural material disposed between the inner and outer tubular members, an RF coil mounted to an inner surface of the coil support structure, and a positron emission tomography (PET) detector assembly mounted to an outer surface of the coil support structure. A dual-modality imaging system is also described.
Abstract:
A detector unit for a detector array includes a photo sensor array, a light guide, and a plurality of scintillator elements formed unitarily with the light guide, the scintillator elements configured to emit absorbed energy in the form of light, the light guide being configured to transmit the light received from at least one of the scintillator elements to a photo sensor, the light guide and the plurality of scintillators being formed from the same material, an area covered by the photo sensors being smaller than an area covered by the scintillator elements and a number of photo sensors being less than a number of scintillator elements. A detector array and a method of manufacturing a detector array are also described herein.
Abstract:
A power delivery control system and a method of monitoring the same are provided. The control system includes a plurality of computers. Initial data is collected based on the processes running on each computer. If the initial data meets threshold criteria, more detailed data is collected to facilitate root cause analysis. All data is collected using operating system kernel interfaces and is time stamped. On each computer, correlated collected data may be displayed in a GUI.
Abstract:
An air mattress has a resilient front panel, an opposed rear panel and at least one interior panel extending therebetween dividing the mattress into ball and strike chambers. A ball air valve attached to the rear panel at the ball chamber activates in response to a predetermined pressure increase in the chamber occurring in response to deflection of the front panel at the ball chamber. A strike air valve attached to the rear panel at the strike chamber activates in response to a predetermined pressure increase in the chamber occurring in response to deflection of the front panel at the strike chamber. Signaling devices alert when a strike or ball air valve activates informing a user whether a pitch is a ball or a strike.
Abstract:
Methods and systems for controlling a positron emission tomography (PET) system are provided. The method includes receiving timing information from a PET system during an imaging scan using the PET system. The method further includes processing the received timing information and timing bias information relating to the PET system to control the PET system.
Abstract:
Human and mammalian skin undergoes a variety of changes associated with chronological aging. Various environmental factors, disease states and genetic disorders may accelerate both the appearance of aging skin and also the structural and functional changes associated with aging skin. Ultraviolet radiation from the sun is one of the classic known and well-defined means of accelerating or worsening the aging of the skin and this is frequently termed photoaging. Other environmental factors, such as oxidative stress, free radicals, environmental toxins such as ozone and cultural customs or habits such as tobacco smoking are other known probe accelerators in photo aging skin. A wide variety of other factors known and unknown contribute to accelerated or premature aging of the skin. This invention discusses methods where electromagnetic radiation, in particular, light, can be used to photobiomodulate the activity of living cells to delay, diminish, retard or even reverse the structural and functional effects of aging of the skin and other living cells and tissues. In particular methods described for improving the appearance, structure, function of aging skin, including up and down regulating the genotypic markers for the phenotype of aging skin.