# US 8,542,894 B2 · Method and device for post-processing measured values registered by way of an imaging system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,894 B2 - Document ID: US8542894B2 - Status: Granted - Kind: B2 - Application number: 12/827,275 - Filed: 2010-06-30 - Published: 2011-01-13 - Granted: 2013-09-24 - Earliest claimed: 2009-07-09 - Assignees: Siemens Aktiengesellschaft - Applicants: Dominik Bernhardt; Michael Scheuering - Inventors: Dominik Bernhardt; Michael Scheuering - Web page: https://patentgrep.com/patent/US8542894B2 ## CPC - G06T 11/26: Drawing of charts or graphs - A61B 6/503: {for diagnosis of the heart} - A61B 6/507: {for determination of haemodynamic parameters, e.g. perfusion CT} - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A method is disclosed for post-processing measured values of a tissue region including at least part of a heart, which measured values were registered by way of an imaging system. In at least one embodiment, the method includes at least: generating an at least three-dimensional data record from the measured values; analyzing the at least three-dimensional data record and generating parameter maps in respect of at least two of the following parameters: thickness and/or change in thickness of a myocardial wall, movement of the myocardial wall, local blood-supply values for defined spatial regions of the heart; automatically generating a results parameter map on the basis of the generated parameter maps according to fixed rules; and outputting the results parameter map. Moreover, at least one embodiment of the invention relates to a correspondingly designed device. ## Claims ### Claim 1 A method for post-processing measured values of a tissue region comprising at least part of a heart, the measured values being registered by way of an imaging system, the method comprising: generating, by the imaging system, an at least three-dimensional data record from the measured values; analyzing, by the imaging system, the at least three-dimensional data record and generating at least two parameter maps, each of the generated parameter maps being polar maps generated based on at least two of, at least one of thickness and change in thickness of a myocardial wall, movement of the myocardial wall, and local blood-supply values for defined spatial regions of the heart; automatically, by the imaging system, generating a results parameter map by combining the at least two generated parameter maps according to fixed rules; and outputting, by the imaging system, the results parameter map. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein the local blood-supply values comprise local probability values on the basis of stenosis values in at least one of supply and discharge vessels of the heart. ### Claim 3 (depends on 2) The method as claimed in claim 2, wherein of the at least three-dimensional data record includes a four-dimensional data record, which includes a temporal sequence of steps. ### Claim 4 (depends on 1) The method as claimed in claim 1, wherein of the at least three-dimensional data record includes a four-dimensional data record, which includes a temporal sequence of steps. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein the generation of the results parameter map comprises an analysis of a deviation from the standard of standard values in at least one of the generated parameter maps. ### Claim 6 (depends on 5) The method as claimed in claim 5, wherein the generation of the results parameter map comprises an analysis of a deviation from the standard of standard values in all generated parameter maps. ### Claim 7 (depends on 6) The method as claimed in claim 6, wherein the analysis of the deviation from the standard comprises an analysis of the deviation from an averaging value. ### Claim 8 (depends on 5) The method as claimed in claim 5, wherein the analysis of the deviation from the standard comprises an analysis of the deviation from an averaging value. ### Claim 9 (depends on 1) The method as claimed in claim 1, wherein the generation of the results parameter map comprises a combination of reference values derived from the generated parameter maps. ### Claim 10 (depends on 9) The method as claimed in claim 9, wherein the combination is performed under equal weighting of the derived reference values. ### Claim 11 (depends on 9) The method as claimed in claim 9, wherein the combination comprises a weighted combination. ### Claim 12 (depends on 11) The method as claimed in claim 11, wherein the weighted combination comprises a weighted addition. ### Claim 13 (depends on 12) The method as claimed in claim 12, wherein the weighted combination is performed under equal weighting of the derived reference values. ### Claim 14 (depends on 1) The method as claimed in claim 1, wherein visual representations of tissue structures are added to the results parameter map, which representations comprise information relating to at least one of supply and discharge organs of the heart. ### Claim 15 (depends on 1) The method as claimed in claim 1, wherein a schematic subdivision into segments based on slice planes of the heart is used as a basis for at least one of the results parameter map and the generated parameter maps. ### Claim 16 (depends on 1) The method as claimed in claim 1, wherein a subdivision based on supply regions of the heart defined by supply organs is used as a basis for at least one of the results parameter map and the generated parameter maps, the boundaries of which subdivision are integrated at least into the results parameter map or linked to the latter. ### Claim 17 (depends on 1) The method as claimed in claim 1, wherein parameter maps with a continuous display spectrum are used as parameter maps. ### Claim 18 A device for post-processing measured values of a tissue region comprising at least part of a heart, the measured values being registered by way of an imaging system, the device comprising: at least one of (1) a measured-value input interface configured to adopt the measured values and a generation unit configured to generate an at least three-dimensional data record from the measured values, and (2) an input interface for inputting the at least three-dimensional data record; an analysis unit configured to analyze the at least three-dimensional data record and to generate at least two parameter maps, each of the generated parameter maps being polar maps generated based on at least two of, at least one of thickness and change in thickness of a myocardial wall, movement of the myocardial wall, and local blood-supply values for defined spatial regions of the heart; a parameter combining unit to automatically generate results parameter maps by combining the at least two generated parameter maps, wherein the parameter combining unit is connected to a storage apparatus, the storage apparatus being usable to maintain a post-processing protocol with fixed rules; and an output interface to output the results parameter maps. ### Claim 19 An imaging system including a device for post-processing measured values of a tissue region comprising at least part of a heart, the measured values being registered by way of an imaging system, the device comprising: at least one of (1) a measured-value input interface configured to adopt the measured values and a generation unit configured to generate an at least three-dimensional data record from the measured values, and (2) an input interface for inputting the at least three-dimensional data record; an analysis unit configured to analyze the at least three-dimensional data record and to generate at least two parameter maps, each of the generated parameter maps being polar maps generated based on at least two of, at least one of thickness and change in thickness of a myocardial wall, movement of the myocardial wall, and local blood-supply values for defined spatial regions of the heart; a parameter combining unit to automatically generate results parameter maps by combining the at least two generated parameter maps, wherein the parameter combining unit is connected to a storage apparatus, the storage apparatus being usable to maintain a post-processing protocol with fixed rules; and an output interface to output the results parameter maps. ### Claim 20 A computer program product, loadable directly into a storage of a programmable image-processing apparatus for post-processing measured values of a tissue region including at least part of a heart, the measured values being registered by way of an imaging system, comprising: program-code segments stored in the computer program product configured to perform a method when executed on the image-processing apparatus, the method including, generating, by the imaging system, an at least three-dimensional data record from the measured values; analyzing, by the imaging system, the at least three-dimensional data record and generating at least two parameter maps, each of the generated parameter maps being polar maps generated based on at least two of, at least one of thickness and change in thickness of a myocardial wall, movement of the myocardial wall, and local blood-supply values for defined spatial regions of the heart; automatically, by the imaging system, generating a results parameter map by combining the at least two generated parameter maps according to fixed rules; and outputting, by the imaging system, the results parameter map.