| Patent application number | Description | Published |
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| 20080281218 | System and Method for Selecting End of Diastole and End of Systole Frames - A method and apparatus for automatically selecting an end of diastole image frame and an end of systole image frame for cardiac analysis. In the method and apparatus, a plurality of image frames of a heart having a contrast medium injected into the heart and an electrocardiogram (ECG) curve of the heart are obtained. Candidate image frames are identified in the plurality of image frames that correspond to a first predetermined point on the ECG curve of the heart associated with the end of diastole. An end of diastole image frame is selected from the candidate image frames. An end of systole image frame is then identified and selected from the remaining one of the plurality of image frames. | 11-13-2008 |
| 20080298652 | METHOD AND SYSTEM OF PREVIEWING PREVIOUS AND FORWARD FRAMES OF A SELECTED END OF DIASTOLE OR END OF SYSTOLE FRAME CANDIDATE - A method and system for viewing a series of medical image frames. The method and system displays a candidate medical image frame selected from the series of medical image frames, in a first portion of a display screen of a user interface; displays, in a second portion of the display screen of the user interface, a first alternate candidate medical image frame of the series of medical image frames which precedes or follows the candidate medical image frame in the series of medical image frames; and displays the first alternate candidate medical image frame in the first portion of the display screen when the first alternate candidate medical image frame displayed in the second portion of the display screen is selected, via the user interface, for display on the first portion of the display screen. | 12-04-2008 |
| 20080301384 | Logging and Storing of a Sequence of Image Frame Data for Optimal Recovery After Power Failure - A method of logging and storing of a sequence of acquired X-ray image frame data in an X-ray imaging lab includes logging and updating image frame data related information in a non-volatile memory on a real-time basis upon completion of storage of each image frame data and deleting the logged information upon completion of storage of the sequence of X-ray image frames. | 12-04-2008 |
| 20090110252 | System for visualizing regions of Interest in medical images - A system for visualizing vascular fluid flow concentration includes at least one repository including a plurality of stored angiography scenes, an angiography scene comprises a plurality of individual images of a vascular structure successively acquired over a time period. A user interface control device enables a user to determine, (a) a duration and (b) a start time relative to a start time of the time period, of a window of interest within the time period. A control processor is electrically coupled to the user interface control device and the at least one repository. Control processor automatically assigns a unique visual indicator representing contrast flow of fluid through vessels to individual images within the user determined duration of the time period. A display processor, electrically coupled to the control processor and the user interface control device and at least one repository, generates data representing at least one display image comprising a composite image including individual images within the user determined duration of the time period having a unique assigned visual indicator. | 04-30-2009 |
| 20090180591 | Adaptive Medical Image and Mask Data Processing System - A system and method are disclosed for allowing the user to change the patient table position or x-ray detector position during an angiographic roadmapping procedure while still displaying a properly registered roadmap display by adapting the mask image to the new position. A system and method are further disclosed for allowing the user to change the field of view size (i.e., zoom factor) of the x-ray detector during an angiographic roadmapping procedure by matching the size of the existing mask to the live image. | 07-16-2009 |
| 20090185730 | Automated Image Data Subtraction System Suitable for Use in Angiography - An image data subtraction system suitable for use in Angiography or other medical procedure enhances vessel visualization. An imaging system subtracts data representing a first mask image from data representing temporally sequential individual images of patient vessels to provide first digitally subtracted images. The sequential individual images encompass introduction of a contrast agent. An image processor automatically, processes the data representing the first digitally subtracted images to identify a first image indicating presence of the contrast agent and a second image preceding the first image by determining a measure representing a net presence of contrast agent in an individual digitally subtracted image. The second image is substantially exclusive of an indication of presence of the contrast agent. The image processor automatically, selects the second image as a second mask image and subtracts data representing the second mask image from the data representing images of the temporally sequential individual images to provide second digitally subtracted images. A user interface presents the second digitally subtracted images for display while the patient is undergoing a medical procedure. | 07-23-2009 |
| 20090257631 | System for Generation of a Composite Medical Image of Vessel Structure - A system reduces artifacts introduced by patient or table motion during generation of a composite image visualizing contrast agent flow. A system for generation of a composite medical image of vessel structure, includes an imaging device for acquiring multiple sequential images of vessel structure of a portion of patient anatomy in the presence of a contrast agent. An imaging processor aligns individual images of the multiple sequential images with a single particular mask image containing background detail of the portion of patient anatomy in the absence of contrast agent. The imaging processor forms data representing multiple digitally subtracted images by subtracting data representing the single particular mask image from aligned individual images of the multiple sequential images. The imaging processor associates different individual images of the multiple digitally subtracted images with different corresponding visual attributes and combines data representing the digitally subtracted images to form a composite image. A reproduction device presents the composite image to a user. | 10-15-2009 |
| 20100053209 | System for Processing Medical Image data to Provide Vascular Function Information - A system creates a visually (e.g., color) coded 3D image that depicts 3D vascular function information including transit time of blood flow through the anatomy. A system combines 3D medical image data with vessel blood flow information. The system uses at least one repository for storing, 3D image data representing a 3D imaging volume including vessels, in the presence of a contrast agent and 2D image data representing a 2D X-ray image through the imaging volume in the presence of a contrast agent. An image data processor uses the 3D image data and the 2D image data in deriving blood flow related information for the vessels. A display processor provides data representing a composite single displayed image including a vessel structure provided by the 3D image data and the derived blood flow related information. | 03-04-2010 |
| 20100158341 | System for Automatically Generating a Mask for Digital Subtraction Angiography - A system automatically generates a mask image. An interface receives a signal from an X-ray imaging device indicating X-ray radiation dosage for performing imaging is substantially stable. An image processor automatically processes data representing multiple temporally sequential individual images of a portion of patient anatomy to identify, a first image comprising an image in the multiple temporally sequential individual images determined in response to the received signal. The image processor identifies a second image substantially exclusive of an indication of presence of a contrast agent successively followed by an image indicating presence of a contrast agent, by comparing a difference between measures representative of luminance content of the second image and the image indicating presence of a contrast agent, with a threshold. The image processor also identifies a set of images comprising the first and second images and any sequential intervening images. An image data processor automatically averages the set of images for use as a mask image. | 06-24-2010 |
| 20100172474 | METHOD FOR PIXEL SHIFT CALCULATION IN DIGITAL SUBTRACTION ANGIOGRAPHY AND X-RAY DIAGNOSTIC IMAGING SYSTEM FOR GENERATING IMAGES IN DIGITAL SUBTRACTION ANGIOGRAPHY - The invention relates to an X-ray diagnostic imaging system for generating images in digital subtraction angiography and a method carried out therewith, comprising the following steps:
| 07-08-2010 |
| 20100259550 | Method of Visualization of Contrast Intensity Change Over Time in a DSA Image - A system provides a display image enabling a user to visualize and compare blood flow characteristics over time at selected points in an angiographic X-ray image. A system and user interface enables user interaction with a medical vessel structure image to determine individual vessel blood flow characteristics. The system includes a user interface cursor control device and a display processor for generating data representing a single composite display image. The composite display image includes, a first image area showing a patient vessel structure and contrast agent flow through the patient vessel structure over a first period of time and a second image area showing a graph of contrast agent concentration in a particular portion of the vessel structure over a second period of time. The particular portion of the vessel structure is selected in response to user command using the cursor control device. | 10-14-2010 |
| 20110034801 | System for Processing Angiography and Ultrasound Image Data - A system provides a single composite image including multiple medical images of a portion of patient anatomy acquired using corresponding multiple different types of imaging device. A display processor generates data representing a single composite display image including, a first image area showing a first image of a portion of patient anatomy acquired using a first type of imaging device, a second image area showing a second image of the portion of patient anatomy acquired using a second type of imaging device different to the first type. The first and second image areas include first and second markers respectively. The first and second markers identify an estimated location of the same corresponding anatomical position in the portion of patient anatomy in the first and second images respectively. A user interface enables a user to move at least one of, (a) the first marker in the first image and (b) the second marker in the second image, to correct the estimated location so the first and second markers identify the same corresponding anatomical position in the portion of patient anatomy. | 02-10-2011 |
| 20110058653 | System for Medical Image Processing, Manipulation and Display - A system automatically adaptively adjusts an enlarged region of interest presented as a zoomed image on a secondary live display in response to X-ray filter (e.g., collimator) adjustment. An X-ray medical image user interface system includes one or more displays for displaying medical images. At least one display concurrently presents, a first image window including an X-ray image overview of a portion of patient anatomy and a second image window including an enlarged region of interest within the X-ray image overview. A collimator position detector provides a collimator signal in response to a detected collimator position. An image data processor automatically identifies the enlarged region of interest within the X-ray image overview in response to the collimator signal. A display processor generates data representing an image comprising the enlarged region of interest of the X-ray image overview in response to the identification of the enlarged region of interest within the X-ray image overview. | 03-10-2011 |
