Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Acquiring contrast-enhanced, T1-weighted, cine magnetic resonance images

A technology for acquiring images and magnetic resonance imaging, applied in magnetic resonance measurement, material analysis through resonance, and adjustment of magnetic variables, etc., can solve the problems of low tissue contrast, difficult to identify non-viable myocardium, etc., to reduce the number of closed breaths, The effect of increasing equipment efficiency and patient throughput, reducing total scan time

Inactive Publication Date: 2010-12-08
SIEMENS MEDICAL SOLUTIONS USA INC +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both types of cinegraphic MRI have inherently low tissue contrast, making it difficult to identify nonviable myocardium

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acquiring contrast-enhanced, T1-weighted, cine magnetic resonance images
  • Acquiring contrast-enhanced, T1-weighted, cine magnetic resonance images
  • Acquiring contrast-enhanced, T1-weighted, cine magnetic resonance images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The invention has too many possible implementations to be described here. Some possible implementations which are presently preferred are described below. It is important to emphasize, however, that these are descriptions of implementations of the invention, not of the invention, and that the invention is not limited to the implementations described in detail in this section, but is described in broader terms in the claims.

[0030] One implementation includes a class of pulse sequences that includes a combination of aspects of delay-enhanced magnetic resonance imaging and cinegraphic magnetic resonance imaging.

[0031] One aspect of delayed-enhanced magnetic resonance imaging is performing an inversion pulse prior to data acquisition. This inverted pulse is used to zero the normal myocardial signal to highlight hyperenhancing myocardial tissue (non-viable myocardium). Data acquisition occurs at a consistent location in the cardiac cycle, usually end-diastole.

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of magnetic resonance imaging of anatomy that is subject to a movement cycle (e.g., the heart during a cardiac cycle), comprising: administering a magnetic resonance contrast agent; waiting a period of time until the contrast agent is effective to cause selected portions of the anatomy (e.g., macrotic cardiac tissue) to have a different T1 recovery rate from that of other portions (normal cardiac tissue); administering a plurality of inversion recovery pulses spaced in time; acquiring image data at a data acquisition time that is spaced in time by a known time interval following an inversion recovery pulse; varying the time within the movement cycle at which the inversion recovery pulses are administered so that the associated data acquisition times are at a plurality of phases of the movement cycle; processing image data acquired at a phase of the movement cycle to produce at least a portion of an image frame at that phase; and performing the processing for a plurality of phases of the movement cycle to produce a plurality of image frames corresponding to a plurality of phases.

Description

technical field [0001] The present invention relates to magnetic resonance (MR) imaging, and more particularly, the present invention relates to magnetic resonance imaging of the heart. Background technique [0002] Identification of viable myocardium is an important, common clinical purpose, for example, in assessing the potential for revascularization therapy in patients with chronic ischemic disease (Thornhill et al., "The assessment of myocardial viability: a review of current diagnostic imaging approaches, "J. Cardiovasc. Magn. Reson. 4:381-410 (2002)). Viability imaging refers to imaging techniques used to identify abnormal myocardium (viable myocardium) that may recover function after multiple perfusions. Magnetic resonance imaging (MRI) is increasingly used to identify viable myocardium (Sandstede, "Assessment of myocardial viability by MR imaging," Eur. Radiol. 13:52-61 (2003)). Standard magnetic resonance imaging assessment is based on the comparison of separatel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/055G01R33/20A61B5/05G01R33/28G01R33/567
CPCA61B5/7289G01R33/5673A61B5/055G01R33/281B42D15/00B42F7/02
Inventor J·K·金R·勒夫勒K·K·W·陈R·M·塞特塞尔A·E·斯蒂尔曼R·D·怀特
Owner SIEMENS MEDICAL SOLUTIONS USA INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com