Patent application number | Description | Published |
20080205731 | Noise Model Selection for Emission Tomography - Accurate error estimates are beneficial for many applications of emission tomography, e.g. kinetic modelling or SUV quantification with confidence levels. Due to the variety of parameters influencing the noise properties of PET images, the use of a single error model for all imaging situations and data processing set-ups leads to inaccurate error estimates. The present invention circumvents this problem by providing a database that includes a plurality of pre-determined noise models for different imaging situations. The most appropriate noise model can then be selected manually or automatically depending on the given imaging situation. Hence, the time-consuming procedure of extracting correct noise models, e.g. by utilizing a bootstrap method or by analysing repeated measurements, needs to be performed only once for each model and can be done by the vendor of the acquisition system, so that the clinician can instantly access the optimized error models from the database. | 08-28-2008 |
20090273610 | VIRTUAL LESION QUANTIFICATION - A system and method for quantifying a region of interest in a medical image and in particular, a PET image. The system and method allow the clinician to make real time quantitative analysis of a region of interest. The system and method can be used to quantify small lesions within a region of interest by generating a set of virtual lesions for comparison with the actual lesion. Quantitative information, such as lesion size and tracer activity, or SUV, can be obtained to assist the clinician or physician in the diagnosis and treatment of the lesion. | 11-05-2009 |
20090324042 | METHOD AND SYSTEM FOR IMPROVED TOF PET RECONSTRUCTION - A time of flight positron emission tomography apparatus ( | 12-31-2009 |
20100054412 | MOTION ESTIMATION IN TREATMENT PLANNING - An apparatus includes a scanner ( | 03-04-2010 |
20100166274 | LOCAL MOTION COMPENSATION BASED ON LIST MODE DATA - Abstract: A method for locally correcting motion in an image reconstructed by a reconstruction system ( | 07-01-2010 |
20100202664 | MOTION CORRECTION IN NUCLEAR IMAGING - A radiation detection apparatus ( | 08-12-2010 |
20100266099 | MOTION COMPENSATION IN QUANTITATIVE DATA ANALYSIS AND THERAPY - An apparatus includes a diagnostic scanner ( | 10-21-2010 |
20110081068 | RADIOLOGICAL IMAGING INCORPORATING LOCAL MOTION MONITORING, CORRECTION, AND ASSESSMENT - A radiological imaging method comprises: acquiring radiological lines of response (LOR's) from a subject; grouping the acquired LOR's into time intervals such that each group of LOR's ( | 04-07-2011 |
20110293143 | FUNCTIONAL IMAGING - A method includes generating a kinetic parameter value for a VOI in a functional image of a subject based on motion corrected projection data using an iterative algorithm, including determining a motion correction for projection data corresponding to the VOI based on the VOI, motion correcting the projection data corresponding to the VOI to generate the motion corrected projection data, and estimating the at least one kinetic parameter value based on the motion corrected projection data or image data generated with the motion corrected projection data. In another embodiment, a method includes registering functional image data indicative of tracer uptake in a scanned patient with image data from a different imaging modality, identifying a VOI in the image based on the registered images, generating at least one kinetic parameter for the VOI, and generating a feature vector including the at least one generated kinetic parameter and at least one bio- marker. | 12-01-2011 |