Patent application number | Description | Published |
20080226149 | Motion Compensation in Functional Imaging - Medical images are collected in a plurality of cardiac and respiratory phases. The images are transformed into a series of respiratory compensated images with the plurality of cardiac phases, but all at a common respiration phase. The series of respiratory compensated images are transformed into one image at a selected cardiac phase and the common respiration phase. In some embodiments, a database of gated transform matrices is generated. The database may be based on specific patient information or on information generated from a pool of patients. The database may account for respiratory motion, cardiac contractile motion, other physiological motion, or combinations thereof. For a current image to be motion corrected, the transformation matrices collected in the database are used to estimate a current set of transformation matrices accounting for the motion in the current image, and a motion-compensated image is generated based on the current set of transform matrices. | 09-18-2008 |
20090087065 | ACCOUNTING FOR FOREIGN OBJECTS WHEN CREATING CT-BASED ATTENUATION MAPS - In a method for generating an attenuation map ( | 04-02-2009 |
20090202125 | RESTORATION OF THE NUCLEAR MEDICINE 2D PLANAR IMAGE BY ITERATIVE CONSTRAINED DECONVOLUTION - A medical imaging system ( | 08-13-2009 |
20090232375 | ITERATIVE RECONSTRUCTION WITH ENHANCED NOISE CONTROL FILTERING - An imaging system ( | 09-17-2009 |
20090237500 | MOLECULAR IMAGING APPARATUS AND METHOD - A nuclear imaging chain ( | 09-24-2009 |
20100278412 | MULTI-SEGMENT RECONSTRUCTION - A medical imaging system includes a view transformation component ( | 11-04-2010 |
20100284598 | IMAGE REGISTRATION ALIGNMENT METRIC - A method includes obtaining a combined data set that includes first and second imaging data sets. The first and second imaging data sets correspond to different imaging modalities. The method further includes determining a metric indicative of an alignment between the first and second imaging data sets in the combined data set. The method further includes presenting the metric in a human readable format. | 11-11-2010 |
20100311034 | RECEIVER OPERATING CHARACTERISTIC-BASED TRAINING - A presentation component ( | 12-09-2010 |
20110081067 | METHOD AND APPARATUS FOR ATTENUATION CORRECTION - A method and apparatus of image reconstruction attenuation correction in PET or SPECT cardiac imaging is provided. A volumetric attenuation imaging scan by an X-ray source may be used to generate a gamma ray attenuation map. The volumetric attenuation imaging scan may be randomized, and may be performed while the imaged subject is breathing. | 04-07-2011 |
20120114212 | IMAGE RECONSTRUCTION INCLUDING SHIFT-VARIANT BLUR COMPENSATION - An image reconstruction method comprises reconstructing an image using an iterative reconstruction method and computing a projection used in the reconstructing by summing ray increments between neighboring planes (P | 05-10-2012 |
20130070994 | SPARSE DATA RECONSTRUCTION FOR GATED X-RAY CT IMAGING - When imaging a compact structure, such as a calcium deposit in a patient's heart, a slow scan (e.g., less than approximately 6 rpm) CT data acquisition is performed, wherein data is continuously but sparsely acquired during around a 360° revolution around the patient. Arc segments are defined that equate to one heart cycle (e.g., heartbeat) given the patient's heart rate and the speed of the CT gantry. Electrocardiogram signal data is used to identify sets of acquired projection data that correspond to each of a plurality of heart cycle phases during which the heart is relatively still. A sparse reconstruction algorithm is executed on the identified sets of sparse projection data to generate images for each heart cycle phase from the scan data acquired for that phase across all heart cycles. | 03-21-2013 |
20130142411 | DUAL MODALITY IMAGING INCLUDING QUALITY METRICS - An anatomical image data set and an emission image data set are acquired for a subject. An attenuation map is generated from the anatomical image data set. The emission image data set is reconstructed to generate an emission image. The reconstructing includes correcting for attenuation of emission radiation in the subject using the attenuation map. A value is calculated for a quality assurance (QA) metric quantifying alignment of the attenuation map with the emission image. The emission image is displayed or printed together with the calculated quality assurance metric. In some embodiments, prior to the reconstructing the attenuation map is registered with the emission image data set by performing a global rigid registration followed by a local non-rigid registration of a region of interest. | 06-06-2013 |
20130249941 | METHOD AND SYSTEM FOR MANAGING IMAGING DATA - A method and system for managing imaging data are provided. In one aspect, imaging data is stored in combination with user-generated information relating to the imaging data. In various other aspects, an image file header structure including user-generated information, a software editing tool to record user-generated information, and an imaging display tool to correlate imaging data and user-generated information are provided. | 09-26-2013 |
20140257096 | DATA-DRIVEN OPTIMIZATION OF EVENT ACCEPTANCE/REJECTION LOGIC - In Positron Emission Tomography, a time window ( | 09-11-2014 |
20140319360 | GANTRY-FREE SPECT SYSTEM - A gantry free nuclear imaging system ( | 10-30-2014 |
20140343412 | WHOLE-BODY SPECT SYSTEM - A whole body SPECT system ( | 11-20-2014 |
20150038840 | PORTABLE MEDICAL IMAGER WITH GUI INTERFACE COMPRISING A MOTION SENSOR - A portable imaging system for imaging a region of interest (ROI) includes a housing ( | 02-05-2015 |