Abstract: Images of an environment, such as an underwater environment, may be depicted over time to allow the environment to be monitored. The images may be real-time images and may be incorporated into a virtual reality environment.

Abstract: A method and apparatus for correcting scattering in SPECT I-123 imaging. The method generally includes: accessing list mode data for a plurality of pixels corresponding to a first SPECT I-123 image generated using a gamma camera; generating a raw energy spectrum for at least some of the pixels utilizing the acquired list mode data; acquiring a gamma camera model corresponding to the gamma camera; utilizing the gamma camera model and an iterative algorithm to apply a first scattering correction to the raw energy spectrum; utilizing a Compton window to apply a second scattering correction to the raw energy spectrum; and generating a correction table with the corrected raw energy spectrum.

Abstract: Embodiments of the present invention provide a computer program, method, and system to facilitate hybrid CT attenuation correction. In one embodiment, the method generally includes acquiring data from a scanner, utilizing an ordered subset expectation maximization-bayesian algorithm to reconstruct the acquired data, and forward projecting the reconstructed data. Such a configuration minimizes the computing resources required for reconstruction and improves attenuation correction accuracy.

Abstract: System and method are disclosed for helping users determine, evaluate, and/or place orders for nutritional blend formulations to be manufactured from available nutritional formulation materials. A web-accessible graphical user interface receives specifications from a user for a nutritional blend formulation (e.g., intended use, desired nutritional activity, and/or concentration of nutrients in the formulation). Information concerning the available nutritional formulation materials are organized into hierarchies that facilitate identifying the available nutritional formulation materials for preparing the formulation. The system converts the specifications into information reported to the user. The user can modify the specifications to determine the effect on the reported information (e.g., cost), and such modifications can be made repeatedly until the user is satisfied. The user can submit the proposed formulation to the manufacturer or vendor to allow them to review, approve, or modify the formulation.

Abstract: A highly directional radiation probe with a laser guide to pinpoint the position of a source of radiation. The probe is configured with a lead pinhole collimator, a radiation detector configured to detect radiation through the pinhole, and a laser positioned in the collimator and configured to project a beam through the pinhole. When the probe is aligned with the radiation source detected through the pinhole, the laser is activated and projects a beam at the source position. The probe can scan a person in three dimensions to quickly locate radioactive shrapnel for removal. The probe can also be used to pinpoint small sources of radiation in a localized area within a radius up to about 20 meters or further, depending on the level of radiation exposure encountered. The probe is adapted to be hand-held, battery-operated and used with a visual or audible radioactivity indicator or a visual display device.