NMR imaging equipment stability and method for measuring image-forming index

A nuclear magnetic resonance imaging and nuclear magnetic resonance technology, which is applied in the use of nuclear magnetic resonance imaging systems for measurement, magnetic resonance measurement, and magnetic variable measurement, etc. question
CN101322648AInactive Publication Date: 2008-12-17WEST CHINA HOSPITAL SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WEST CHINA HOSPITAL SICHUAN UNIV
Publication Date
2008-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for measuring the stability and imaging indexes of a nuclear magnetic resonance imaging device and is characterized in that: the images of a water phantom are obtained by adopting the nuclear magnetic resonance imaging device to scan the water phantom, the images are transmitted to a specific nuclear magnetic resonance imaging quality assurance and analysis work station by a DICOM protocol, and then the quality assurance and analysis work station is self started and enters a corresponding measurement process (referring to the figure 1 in the abstract of the process) according to DICOM control elements so as to process and calculate the images of the water phantom; the measuring content includes common nuclear magnetic resonance imaging quality assurance indexes, the shifting indexes which have important significance to Functional MRI, and other indexes; meanwhile, an automatic early warning mechanism is established for auto prompting when an abnormal condition occurs and gives the possible reason, and all measured results are sent into a database for long-term analysis of data and evaluation of running state of the device, so as to offer guidance to relevant technicians to master device state and carry out equipment testing.
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Description

technical field

[0001] The invention relates to a method for measuring the stability of nuclear magnetic resonance imaging equipment and imaging indexes, and belongs to the application field of nuclear magnetic resonance imaging equipment. Background technique

[0002] Since the first nuclear magnetic resonance scanner came out in 1972, magnetic resonance imaging (Magnetic Resonance Image, MRI) has been developed rapidly as an important clinical examination method, and plays an important role in clinical diagnosis. At the same time, the imaging methods of nuclear magnetic resonance are also advancing with each passing day, and some new imaging technologies including functional magnetic resonance imaging (functional Magnetic Resonance Image, fMRI) have emerged. However, as a very complex system, MRI is affected by many factors and links, and there are many unstable factors in the equipment itself, which are finally reflected in imaging quality problems, leading to misdiagnosi...

Claims

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