Prospective electrocardiography triggering method and device

An electrocardiographic triggering and forward-looking technology, which is applied in the field of medical devices, can solve problems such as ECG signal interference, increased deployment time, and patient discomfort, and achieve the effects of reducing breath-hold time, improving time resolution, and eliminating tedious work

Pending Publication Date: 2018-10-16
SIEMENS SHENZHEN MAGNETIC RESONANCE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this requires placement of multiple ECG electrodes on the patient, which can be uncomfortable for the patient and adds additional electrode placement time
[0005] In addition, ECG signals are also susceptible to interference from factors such as blood flow, magnetic fields, and imaging sequences

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  • Prospective electrocardiography triggering method and device
  • Prospective electrocardiography triggering method and device
  • Prospective electrocardiography triggering method and device

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Embodiment Construction

[0044] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0045] For the sake of brevity and intuition in description, the solution of the present invention is described below by describing several representative implementation manners. Numerous details in the embodiments are only used to help the understanding of the solutions of the present invention. But obviously, the technical solutions of the present invention may not be limited to these details when implemented. In order to avoid unnecessarily obscuring the solution of the present invention, some embodiments are not described in detail, but only a framework is ...

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Abstract

The embodiment of the invention discloses a prospective electrocardiography triggering method and a prospective electrocardiography triggering device. The method comprises the following steps: applying a prospective acquisition correction (PACE) sequence for detecting a heart blood flow curve during the learning period, and calculating trigger point parameters based on the heart blood flow curve;and when searching out a trigger point based on the trigger point parameters during the triggering period by utilizing the PACE sequence, sending a triggering signal to an imaging sequence. Accordingto the embodiment provided by the invention, the PACE technology usually applied to respiratory gating is applied to heart gating, thus the troublesome work caused by arranging the ECG electrode can be avoided, and the discomfort of patients is eliminated. In addition, according to the embodiment of the invention, the optimization in the sequence, parameter and locating is also carried out on thePACE technology, and meanwhile, the breath-holding time is reduced by sharing the learning period.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a prospective electrocardiographic triggering method and device. Background technique [0002] Magnetic resonance imaging (Magnetic Resonance Imaging, MRI) is a biomagnetic nuclear spin imaging technology developed rapidly with the development of computer technology, electronic circuit technology, and superconductor technology. It uses a magnetic field and radio frequency pulses to vibrate the precessing hydrogen nuclei (ie H+) in human tissue to generate radio frequency signals, which are processed by a computer and imaged. When an object is placed in a magnetic field, it is irradiated with appropriate electromagnetic waves to make it resonate, and then the electromagnetic waves released by it are analyzed, and the position and type of the atomic nuclei that make up the object can be known, and the precise interior of the object can be drawn accordingly. Stereoscopi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 董芳周堃刘薇
Owner SIEMENS SHENZHEN MAGNETIC RESONANCE
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