System and method for image based physiological monitoring of cardiovascular function

A heart function and image technology, applied in image data processing, image enhancement, application, etc., can solve problems such as not found

Inactive Publication Date: 2007-09-05
SIEMENS MEDICAL SOLUTIONS USA INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the concept of interleaving multiple types of MR imaging methods has been adopted in the field of navigator gating, where low-resolution images are used to sample gl...

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  • System and method for image based physiological monitoring of cardiovascular function
  • System and method for image based physiological monitoring of cardiovascular function
  • System and method for image based physiological monitoring of cardiovascular function

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Embodiment Construction

[0016] Exemplary embodiments of the invention as described herein generally include systems and methods for real-time monitoring of cardiac function using Magnetic Resonance Imaging (MRI) that is used to guide or enforce stress Imaging interleaving for testing or interventional cardiovascular procedures. Therefore, while the present invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown in the drawings, for example, and will be described in detail herein. It should be understood, however, that there is no intention to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

[0017] As used herein, the term "image" refers to multidimensional data composed of discrete image elements (eg, pixels for 2D images and voxels for 3D images). The image may be, for example, a medical ...

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Abstract

A method for monitoring cardiac function in real time is provided, which comprises: (51) choosing a plane passing through the heat to acquire cardiac function data from the plane; (52) acquiring a two-dimensional image from the chosen plane, wherein, the image comprises a plurality of intensity values defined in point zones in a two-dimensional grid; (53) choosing the center of the cardiac chamber, and projecting a plurality of wave beams to the center of the image passing through the chamber, wherein, each wave beam comprises a subset of points essentially on the same line in the image; (54) carrying out sampling for the image intensity on each point along the wave beam; and, repeating the two-dimensional image acquisition operation to project a plurality of virtual wave beams onto the image, and calculating image intensity to obtain a series of time-based measured values, wherein, the image intensity along each wave beam can be drawn (55) as a function of time.

Description

[0001] Cross References to Related U.S. Applications [0002] This application claims priority to U.S. Provisional Application No. 60 / 748,558, entitled "Image Based Physiological Monitoring of Cardiovascular Function," filed December 12, 2005, by Lorenz et al. The content of said application is hereby incorporated by reference. technical field [0003] The present invention relates to real-time monitoring of cardiac function using magnetic resonance imaging (MRI) alternating with imaging used to guide or perform stress tests or interventional cardiovascular procedures. Background technique [0004] Monitoring ischemic changes in the electrocardiogram (ECG) during dobutamine stress testing or MR-guided interventions is not possible in the MR environment due to magnetohydrodynamic effects. This effect occurs because ions in the blood flowing through the body develop their own voltage in the presence of a static magnetic field. When the patient is within this static magnetic ...

Claims

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Application Information

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IPC IPC(8): A61B5/055A61B5/026A61B5/107A61B5/0205G06T5/00
Inventor C·H·洛伦茨C·梅尔
Owner SIEMENS MEDICAL SOLUTIONS USA INC
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