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Method and control device to operate a magnetic resonance system

By using the marking determination unit and the adjustment space determination unit in the control device of the magnetic resonance device, the adjustment space of the magnetic resonance device is automatically optimized, and the problem of high time consumption during the adjustment measurement process in the prior art is solved, and image quality and patient are improved Comfort.

Active Publication Date: 2010-11-10
SIEMENS HEALTHINEERS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in particular requires additional time expenditure, during which the patient has to stay longer in the patient channel of the device, which is often perceived as uncomfortable
Furthermore, such complex manual adjustment of the "bounding box" often results in a suboptimal definition of the conditioning space, which also affects image quality indirectly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] exist figure 1 A magnetic resonance system 1 according to the invention is illustrated roughly schematically in . The magnetic resonance system 1 includes, on the one hand, the actual magnetic resonance scanner 2 , which has an examination space 3 or a patient tunnel therein. In the patient corridor 3, the couch unit 9 can be moved into different positions, so that the patient P or the subject lying on the couch can be supported during the examination in relation to the magnetic system and the high-frequency system arranged therein. within the magnetic resonance scanner 2, or can also be moved between different positions during the measurement. The heart of the patient P is marked schematically as examination object O here.

[0040] It should be pointed out here that the exact design of the magnetic resonance scanner 2 is not critical. Thus, for example, a cylindrical system with a typical patient tunnel can be used, but also a C-arc magnetic resonance system open on...

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PUM

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Abstract

The present invention relates to a method of operating a magnetic resonance system (1) for acquiring magnetic resonance image data (BD) of an examination subject (O), wherein the magnetic resonance system has a number of subsystems (4, 5, 6, 7, 8, 14, 15, 16, 17, 18) and a control device (10), a number of adjustment measurements to adjust at least one subsystem for making a medical diagnostic data acquisition are implemented through the control device. In these adjustment measurements, an adjustment volume associated with the appertaining adjustment measurement is taken into account that encompasses at least one region of a body containing the examination subject. For this purpose, markings established by the control device within image data of the examination subject and characterizing the spatial occupation (position and orientation) and / or a dimension of the examination subject are determined. Based on these markings the spatial occupation and extent of an adjustment volume for an adjustment measurement are determined automatically by the control device.

Description

technical field [0001] The invention relates to a method and a control device for operating a magnetic resonance system for recording magnetic resonance image data of an examination object, in particular for recording a heart or parts of a heart in so-called cardiac magnetic resonance recordings. Background technique [0002] Magnetic resonance tomography is currently a widely used method for obtaining in vivo images. In this method, the examinee's body is placed in a relatively high base magnetic field of eg 1.5 Tesla, or in newer so-called high field devices even 3 Tesla. A high-frequency excitation signal (so-called B 1 field), which causes the nuclear spins of certain atoms resonantly excited by the high-frequency field to be tilted at a certain flip angle relative to the magnetic field lines of the basic magnetic field. The high-frequency signals radiated during the relaxation of the nuclear spins, the so-called magnetic resonance signals, are received via a suitable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055G01R33/28
CPCG01R33/543A61B5/055G01R33/58G01R33/54
Owner SIEMENS HEALTHINEERS AG