# US 10,478,140 B2 · Nearest available roadmap selection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,140 B2 - Document ID: US10478140B2 - Status: Granted - Kind: B2 - Application number: 14/901,534 - Filed: 2014-06-27 - Published: 2016-05-19 - Granted: 2019-11-19 - Earliest claimed: 2013-06-28 - Assignees: Koninklijke Philips N.V. - Applicants: Koninklijke Philips N.V. - Inventors: Pieter Gerben Eshuis; Peter Maria Johannes Rongen; Fransciscus Joannes Leonardus Everaerts; Bram Antonius Philomena Van Rens - Web page: https://patentgrep.com/patent/US10478140B2 ## CPC - A61B 6/485: {involving fluorescence X-ray imaging} - A61B 6/0407: {Supports, e.g. tables or beds, for the body or parts of the body} - A61B 6/4417: {related to combined acquisition of different diagnostic modalities} - A61B 6/4441: {the rigid structure being a C-arm or U-arm} - A61B 6/463: {characterised by displaying multiple images or images and diagnostic data on one display} - A61B 6/467: {characterised by special input means} - A61B 6/481: {involving the use of contrast agents} - A61B 6/487: {involving fluoroscopy} - A61B 6/503: {for diagnosis of the heart} - A61B 6/504: {for diagnosis of blood vessels, e.g. by angiography} - A61B 6/5205: {involving processing of raw data to produce diagnostic data} - A61B 6/5235: {combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT} - A61B 6/545: {involving automatic set-up of acquisition parameters} - A61B 6/547: {involving tracking of position of the device or parts of the device} - A61B 6/5288: {involving retrospective matching to a physiological signal} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A system and method for vascular roadmapping include an X-ray imaging device for generating a fluoroscopy image, a data base in which a plurality of contrast-enhanced images is stored, a user interface element and a processor. Each of the contrast-enhanced images is stored together with the imaging parameters based on which the image is generated. The user interface element may be configured for selecting any intended imaging parameters, such as by manually adjusting the imaging device in any position and orientation. The processor may be configured for identifying a stored contrast-enhanced image out of the plurality of contrast-enhanced images, which is generated with specific imaging parameters, where the deviation of the specific imaging parameters from the intended imaging parameters is as small as possible, thus the processor may be configured for identifying the nearest available roadmap. ## Claims ### Claim 1 A system for vascular roadmapping comprising: an imaging device having an x-ray source and an x-ray detector, for generating a fluoroscopy image; a data base including contrast-enhanced images, wherein the contrast-enhanced images are generated with different imaging parameters; a user interface configured to select intended imaging parameters; and a processor configured: to determine current imaging parameters of the imaging device, to determine a contrast-enhanced image out of the contrast-enhanced images generated with respective imaging parameters, wherein the contrast-enhanced image has imaging parameters closest to the intended imaging parameters, to select the contrast-enhanced image to obtain a selected contrast-enhanced image, to adjust the current imaging parameters of the imaging device to the imaging parameters of the selected contrast-enhanced image, and to determine that a state of the imaging device is a ready-for-use-state based on a completion of an adjustment of the current imaging parameters of the imaging device from the current imaging parameters to the imaging parameters of the selected contrast-enhanced image, wherein the imaging parameters of the selected contrast-enhanced image comprises a position of the x-ray source and the x-ray detector, an orientation of the x-ray source and the x-ray detector, settings of the x-ray source, and settings of the x-ray detector, and wherein the user interface is further configured to indicate the ready-for-use-state or the not-ready-for-use-state of the imaging device. ### Claim 2 (depends on 1) The system of claim 1, further comprising a patient table, wherein the imaging parameters of the selected contrast-enhanced image include a position of the patient table. ### Claim 3 (depends on 1) The system of claim 1, wherein the processor is further configured for generating a roadmap scatterplot including available contrast-enhanced images with respective imaging parameters being close to the intended imaging parameters, and wherein the selected contrast-enhanced image is selected manually from the roadmap scatterplot. ### Claim 4 (depends on 1) The system of claim 1, wherein the imaging parameters of the selected contrast-enhanced image further include at least one out of the group consisting of frame speed, time and date of generation of a contrast-enhanced image, and smallest foreshortening. ### Claim 5 (depends on 1) The system of claim 1, wherein the processor is further configured to combine the fluoroscopy image with the selected contrast-enhanced image for forming a combined image, and wherein the system further comprises a monitor for displaying the combined image. ### Claim 6 (depends on 1) The system of claim 1, wherein the processor is further configured to identify a cyclic motion in a series of contrast-enhanced images and is configured to identify a cyclic motion in a series of fluoroscopy images, and wherein the processor is further configured to combine a selected fluoroscopy image with a contrast-enhanced image of a corresponding motion cycle. ### Claim 7 (depends on 1) The system of claim 1, wherein the selected contrast-enhanced image is selected automatically based on a deviation of the imaging parameters of the selected contrast-enhanced image from the intended imaging parameters being smallest out of deviations of the imaging parameters of the plurality of contrast-enhanced images, and wherein the processor is further configured to automatically control the imaging device so as to adjust the current imaging parameters of the imaging device to the imaging parameters of the selected contrast-enhanced image. ### Claim 8 (depends on 1) The system of claim 1, wherein the processor is configured to control the imaging device to: generate a plurality of fluoroscopy images associated with cardiac cycles based on electro-cardiogram signals; select a set of the contrast-enhanced images that has the cardiac cycles of the plurality of fluoroscopy images for obtaining a set of selected contrast-enhanced images; adjust the current imaging parameters of the imaging device to the imaging parameters of the set of selected contrast-enhanced images to form adjusted fluoroscopy images; and combine the adjusted fluoroscopy images with the selected set of the contrast-enhanced images. ### Claim 9 (depends on 1) The system of claim 1, wherein the processor is configured to control the imaging device to: generate a plurality of fluoroscopy images to determine cyclic motion in the plurality of fluoroscopy images based on image analysis of the plurality of fluoroscopy images; select a set of the contrast-enhanced images that has the cyclic motion of the plurality of fluoroscopy images for obtaining a set of selected contrast-enhanced images; adjust the current imaging parameters of the imaging device to the imaging parameters of the set of selected contrast-enhanced images to form adjusted fluoroscopy images; and combine the adjusted fluoroscopy images with the selected set of the contrast-enhanced images. ### Claim 10 A method for vascular roadmapping, the method comprising the acts of: receiving intended imaging parameters for a fluoroscopy image to be obtained by an imaging device having an x-ray source and an x-ray detector; determining a contrast-enhanced image out of a plurality of contrast-enhanced images generated with respective imaging parameters, wherein the contrast-enhanced image has imaging parameters closest to the intended imaging parameters; selecting the contrast-enhanced image to obtain a selected contrast-enhanced image; adjusting current imaging parameters of the imaging device from the current imaging parameters to the imaging parameters of the selected contrast-enhanced image; and providing a ready-for-use-state of the imaging device when the adjusting act is completed, wherein the imaging parameters of the selected contrast-enhanced image comprises a position of the x-ray source and the x-ray detector, an orientation of the x-ray source and the x-ray detector, settings of the x-ray source, and settings of the x-ray detector. ### Claim 11 (depends on 10) The method of claim 10, further comprising the acts of generating a fluoroscopy image with the imaging parameters of the selected contrast-enhanced image, the fluoroscopy image including an instrument in an anatomy part; receiving from a data base the selected contrast-enhanced image with the imaging parameters of the selected contrast-enhanced image; and combining the fluoroscopy image with the selected contrast-enhanced image. ### Claim 12 (depends on 11) The method of claim 11, wherein the combining act forms a combined image, and the method further comprising the act of displaying the combined image. ### Claim 13 (depends on 10) The method of claim 10, further comprising the act of providing a roadmap scatterplot including available contrast-enhanced images with imaging parameters being close to the intended imaging parameters. ### Claim 14 A non-transitory computer readable medium comprising computer instructions which, when executed by a processor, configure the processor to perform a method for vascular roadmapping, the method comprising the acts of: receiving intended imaging parameters for a fluoroscopy image to be obtained by an imaging device having an x-ray source and an x-ray detector; determining a contrast-enhanced image out of a plurality of contrast-enhanced images generated with respective imaging parameters, wherein the contrast-enhanced image has imaging parameters closest to the intended imaging parameters; selecting the contrast-enhanced image to obtain a selected contrast-enhanced image; adjusting current imaging parameters of the imaging device from the current imaging parameters to the imaging parameters of the selected contrast-enhanced image; and providing a ready-for-use-state of the imaging device when the adjusting act is completed, wherein the imaging parameters of the selected contrast-enhanced image comprises a position of the x-ray source and the x-ray detector, an orientation of the x-ray source and the x-ray detector, settings of the x-ray source, and settings of the x-ray detector.