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Oxygen metabolism parameter estimation method and system

A parameter and sensitivity technology, applied in the field of oxygen metabolism parameter estimation, can solve problems such as hidden dangers of oxygen metabolism parameters, and achieve the effect of improving safety

Inactive Publication Date: 2015-11-04
深圳中科瑞敏医疗科技有限公司
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Problems solved by technology

[0003] Based on this, it is necessary to provide a safe method for estimating oxygen metabolism parameters in view of the potential safety hazards in existing oxygen metabolism parameter inspections.

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  • Oxygen metabolism parameter estimation method and system
  • Oxygen metabolism parameter estimation method and system

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Embodiment Construction

[0071] In order to make the object, technical solution 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 explain the present invention, not to limit the present invention.

[0072] Such as figure 1 Shown is a flow chart of a method for estimating oxygen metabolism parameters in an embodiment. The oxygen metabolism parameter estimation method comprises the following steps:

[0073] Step 102, an image acquisition step, acquiring a susceptibility-weighted imaging map or a quantitative susceptibility map;

[0074] Step 104, phase difference and susceptibility change calculation step, determine the position of the blood vessel from the susceptibility weighted imaging map or the quantitative susceptibility map, calculate the phase difference between the blood vessel and th...

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Abstract

The invention relates to a method and system for estimating oxygen metabolism parameters. The method comprises the following steps that an image is obtained, wherein a magnetic sensitiveness weighted imaging figure or a quantitative magnetic sensitiveness image is obtained; phase differences and sensitiveness variation are calculated, wherein the position of the blood vessel is determined from the magnetic sensitiveness weighted imaging figure or the quantitative magnetic sensitiveness image, the phase differences of the blood vessel and the surrounding tissues are calculated, and local magnetic sensitiveness variation among the tissues is calculated according to the phase differences of the blood vessel and the surrounding tissues; oxygen saturation is estimated, wherein oxygen saturation is estimated according to the local magnetic sensitiveness variation among the tissues. According to the method and system for estimating oxygen metabolism parameters, magnetic sensitiveness variation can be obtained according to the phase differences, the oxygen saturation parameters can be obtained according to the magnetic sensitiveness variation, the method for estimation the oxygen metabolism parameters is free of harm and side effects, and the safety of oxygen saturation parameter estimation is improved.

Description

technical field [0001] The invention relates to the field of physiological parameter detection, in particular to a method and system for estimating an oxygen metabolism parameter. Background technique [0002] The oxygen metabolism of the brain plays a key role in maintaining the normal functioning of the brain, and it is the main energy source for the brain's neurological functions. In order to understand the situation of oxygen metabolism, the traditional way is to use positron emission tomography to measure oxygen uptake fraction (Oxygen Extraction Fraction, OEF), venous oxygen saturation (Yv), cerebral oxygen metabolism rate (Cerebral Metabolic Rate Of Oxygen, CMRO 2 ) and other parameters, however, exogenous contrast agents need to be injected into the subjects, and multiple injections may be required, because exogenous contrast agents are generally radioactive elements, which will have adverse effects on the human body and affect human health. Contents of the inventi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/05
Inventor 史彩云张丽娟谢国喜刘新冯翔
Owner 深圳中科瑞敏医疗科技有限公司
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