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| Number | Title | Issue Date |
| 8121420 | Systems and methods of inter-frame compression A system and method for rendering images, and performing operations such as windowing and leveling, when the parameters of a client appliance are known and rendering images when the parameters of a client appliance are unknown. The invention also considers the rende... | 02/21/2012 |
| 8121419 | Systems and methods of inter-frame compression A system and method for rendering images, and performing operations such as windowing and leveling, when the parameters of a client appliance are known and rendering images when the parameters of a client appliance are unknown. The invention also considers the rende... | 02/21/2012 |
| 8119980 | Self-adaptive tuning of gamma camera An improved system and method for tuning individual sensors (e.g., photomultiplier tubes) of a multi-sensor imaging system such as e.g., a gamma camera having an array of photo-multiplier tubes is provided that produces a uniform response over the entire system. Ind... | 02/21/2012 |
| 8117142 | Method of real-time crystal peak tracking for positron emission tomography (PET) avalanche-photodiodes (APD) detector The present invention provides a method of real-time crystal peak tracking for avalanche-photodiode (APD) detectors on positron emission tomography (PET) scanners that satisfies the need to compensate for the significant gain drifting due to thermal variations in AP... | 02/14/2012 |
| 8115173 | Implementation of wavelength shifters in phoswich detectors A phoswich device for determining depth of interaction (DOI) includes a wavelength shifting layer between first and second scintillators of different scintillation materials and having different decay time characteristics. The wavelength shifting layer allows a true... | 02/14/2012 |
| 8115172 | Position-weighted location of scintillation events Determining a scintillation event location bevent along an axis B of an array of photomultiplier tubes, each photomultiplier tube having a location bPMT and an output ZPMT. Determining a preliminary event location bprelim ... | 02/14/2012 |
| 8114218 | Crucible for a crystal pulling apparatus A single crystal pull apparatus has a multilayer crucible wherein the crucible has an outer crucible, an insertable layer intimately fitted thereon, and a wire frame positioned between the insertable layer and an inner crucible. The insertable layer, wire frame and ... | 02/14/2012 |
| 8110805 | Iterative algorithms for crystal efficiencies estimations from TOF compressed normalization data Time-of-flight (TOF) clinical data collected during a PET scan are very sparse and have significant size. These data undergo TOF axial rebinning and azimuthal mashing if histogrammed data-based reconstruction algorithms are used. In a clinical environment, TOF compr... | 02/07/2012 |
| 8103487 | Controlling the number of iterations in image reconstruction An iterative reconstruction method to reconstruct an object includes determining, in a series of iteration steps, updated objects, wherein each iteration step includes determining a data model from an input object, and determining a stop-criterion of the data model ... | 01/24/2012 |
| 8094898 | Functional image quality assessment A computer-implemented method of assessing the quality of a functional image for an object includes causing a computer to execute instructions for providing a signal distribution of values N generating a transformed distribution by calculating, for each value N, a t... | 01/10/2012 |
| 8090429 | Systems and methods for localized image registration and fusion Systems and methods are described for co-registering, displaying and quantifying images from numerous different medical modalities, such as CT, MRI and SPECT. In this novel approach co-registration and image fusion is based on multiple user-defined Regions-of-Intere... | 01/03/2012 |
| 8090179 | External pixon smoothing for tomographic image reconstruction technical field Tomographically reconstructing a 3D image object corresponding to a data set includes reconstructing a first reconstructed object from the data set, receiving a smoothing map, smoothing the first reconstructed object based on the smoothing map thereby creating a fir... | 01/03/2012 |
| 8089043 | Systems and methods for calibrating time alignment for a positron emission tomography (PET) system A representative positron emission tomography (PET) calibration system includes a PET scanner having a ring detector, a phantom that is placed at approximately the center of the ring detector, and a time alignment calibration manager that is coupled to the PET scann... | 01/03/2012 |
| 8089037 | Real-time gain compensation for photo detectors based on energy peak detection A method, process and apparatus for compensating for changes to the gain of photo detectors in a nuclear imaging apparatus is disclosed. Specifically, embodiments detect positron annihilation event pulses using photo detectors. Changes to the gain of the photo detec... | 01/03/2012 |
| 8086011 | Reconstructing a tomographic image In an aspect, tomographically reconstructing a 3D image object corresponding to a data set includes for each step in a series of iteration steps, determining an updated object by performing a combined operation, which includes performing an update operation for upda... | 12/27/2011 |
| 8064732 | Field of view calibration for modular nuclear medical imaging system A method and apparatus for correcting misalignment between fields of view of a CT device and a NM device of a modular multimodality medical imaging system, by providing a Field Of View Calibration Matrix (FOV-CM) containing rotational and translational transformatio... | 11/22/2011 |
| 8062419 | Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chos... | 11/22/2011 |
| 8060696 | Positron emission tomography event stream buffering PET system including array, data processing, and data acquisition. Data acquisition includes one-to-N channel write striping, N-to-one channel read unstriping, N data storage elements, and control logic. Control logic allocates (statically or dynamically) write/read... | 11/15/2011 |
| 8060177 | Registration of computed tomography (CT) and positron emission tomography (PET) image scans with automatic patient motion correction A method for combined computed tomography (CT) imaging and positron emission tomography (PET) imaging uses respiration-gated CT imaging in which the optimal criteria for CT scan gating are determined after the PET scan has been performed. After acquisition of first ... | 11/15/2011 |
| 8058625 | Limiting viewing angles in nuclear imaging Methods of nuclear imaging can include, in a pre-scan, detecting radiation emitted from a patient in a first plurality of viewing angles including at least a first viewing angle and a second viewing angle, generating nuclear data from the detected radiation, reconst... | 11/15/2011 |
| 8058620 | Method for improving clinical data quality in positron emission tomography A method for improving clinical data quality in Positron Emission Tomography (PET). The method provides for the processing of PET data to accurately and efficiently determine a data signal-to-noise (SNR) corresponding to each individual clinical patient scan, as a f... | 11/15/2011 |
| 8049752 | Systems and methods of determining sampling rates for volume rendering A system and method of determining a sampling rate for rendering a volumetric image, the method includes determining a regional variation value representing regional data, color, and/or alpha variation. An accumulated opacity value is determined that represents opac... | 11/01/2011 |
| 8022368 | Hybrid method for randoms variance reduction A method for reducing randoms variance in a Positron Emission Tomograph (PET) or Positron Emission Tomograph combined with another Medical Imaging device is disclosed. An average of an element of the randoms event (delayeds) sinogram may be estimated by dividing fan... | 09/20/2011 |
| 8021468 | Room temperature chemical trap for the purification of gaseous methane A room temperature trap for the purification and concentration of gaseous methane. The trap utilizes the adsorption and desorption properties of microporous spherical carbon molecular sieves to purify and concentrate radiolabelled methane for application in an autom... | 09/20/2011 |
| 8000513 | System and method for 3D time of flight PET forward projection based on an exact axial inverse rebinning relation in fourier space Methods and systems for reconstructing a nuclear medical image from time-of-flight (TOF) positron emission tomography (PET) imaging data are disclosed. Measured three-dimensional (3D) TOF-PET data, including direct two-dimensional (2D) projections and oblique 3D pro... | 08/16/2011 |
| 7986988 | Reference height calibration scheme for modular multi-modality medical imaging system A reference height calibration procedure obtains a reference error value, which can be used to adjust a height calibration parameter for registering the fields of view (FOVs) of the modules of a multi-modality medical imaging system such as a SPECT-CT imaging system... | 07/26/2011 |
| 7983186 | Defining lost event talley tag packets when PET count rates exceed available acquisition bandwidth A system identifies when received packets are lost at a node in a multi-node processing chain. The system processing chain may include a gantry interface module for receiving coincident event data from a PET (Positron Emission Tomography) detector array, a DMA (dire... | 07/19/2011 |
| 7975358 | Apparatus and method for attaching a drive system and a stand to a ring in a medicine gantry A mounting assembly for attaching the drive system and stand to a ring in a medicine gantry is disclosed. The mounting assembly includes at least one mounting bar (e.g., two mounting bars), at least one mounting plate and at least one adjuster (e.g., a screw). The m... | 07/12/2011 |
| 7968852 | Mitigation of errors in an imaging system with detectors mounted to a gantry and rotatable thereon Implementations of the present technology include error mitigation processes that determine gantry angle-dependent measures of detector deflections for a given class of systems using a first method, then determine gantry angle-independent deviations from the class m... | 06/28/2011 |
| 7965879 | System and method for detecting stripe artifacts in MIP rendered images A method for efficiently rendering a chessboard artifact free Maximum intensity projection (MIP) image is disclosed is disclosed. MIP is a widely used volumetric rendering technology in medical diagnostic imaging. When a volume dataset containing wideband noise is r... | 06/21/2011 |
| 7965806 | Target system for the handling of a Cu-64 solid, liquid or gasseous target The present invention provides a system and method for a system for accommodating a solid target in an accelerator. The system and method includes a target changer having at least one port for accommodating the solid target, an insert for receiving the solid target ... | 06/21/2011 |
| 7965080 | Electro-conductive pet phantom for MR/PET quality control measurement A phantom for use in quality control measurement of a fully integrated magnetic resonance/PET scanner is disclosed. The phantom features radiation activity distributed throughout an electrically conductive binder. Suitably, the binder is elastomeric and includes car... | 06/21/2011 |
| 7957601 | Systems and methods of inter-frame compression A system and method for rendering images, and performing operations such as windowing and leveling, when the parameters of a client appliance are known and rendering images when the parameters of a client appliance are unknown. The invention also considers the rende... | 06/07/2011 |
| 7957501 | Solid target system and method for the handling of a Cu-64 target The present invention provides a system and method for a system for accommodating a solid target in an accelerator. The system and method includes a target changer having at least one port for accommodating the solid target, an insert for receiving the solid target ... | 06/07/2011 |
| 7949172 | Iterative image processing A method for processing an image which has the steps of a) receiving acquired data necessary to obtain an image and estimating a preliminary image; b) selecting at least one image element within the image; c) performing an iterative algorithm for processing the imag... | 05/24/2011 |
| 7935055 | System and method of measuring disease severity of a patient before, during and after treatment A system for obtaining serial biochemical, anatomical or physiological in vivo measurements of disease from one or more medical images of a patient before, during and after treatment, and measuring extent and severity of the disease is provided. First anatomical and... | 05/03/2011 |
| 7932498 | Method for generation of SPECT trajectory data from CT data A method for optimizing the scanning trajectory of a radiation detector device, e.g., a SPECT scanning device, about an object generally includes: obtaining object image data using a different imaging modality, e.g., a CT scanning device, determining a maximum objec... | 04/26/2011 |
| 7928727 | Adapting acquisition time in nuclear imaging Methods of determining an acquisition time adapted to a region of interest for a nuclear imaging process of a patient include detecting radiation from at least a first viewing angle during a first test amount of time, generating first test data from the detected rad... | 04/19/2011 |
| 7925361 | Fault detection for a resistive position sensor Circuits for detecting faults in variable resistive position feedback sensors common in the use of motion control systems, provide a filter coupled to an output signal of the variable resistive position sensor for processing the signal to detect noise indicative of ... | 04/12/2011 |
| 7925326 | Solid fiduciary marker for multimodality imaging A solid fiduciary marker for registering at least two images when imaging the same subject using distinct imaging devices is disclosed. The solid fiduciary marker is visible in at least two of a Positron Emission Tomography (PET), Single Photon Emission Computed Tom... | 04/12/2011 |
