MRI equipment, determining the location of radio frequency coils and methods of selecting radio frequency coils
A technology of radio frequency coils and predetermined positions, which is applied in medical science, magnetic resonance measurement, and adjustment of magnetic variables, etc. It can solve problems such as complex processes, input errors, and difficulty in remembering, and achieve the effect of avoiding manual errors and reducing burdens
Active Publication Date: 2016-06-01
GE MEDICAL SYST GLOBAL TECH CO LLC
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- Application Information
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Problems solved by technology
[0005] The process of manually selecting coils or coil subsections is complex and the potential for input errors increases as the number of coils or coil subsections increases
In addition, it is also difficult to remember the position of each coil or coil sub-section by memory
Method used
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Embodiment Construction
[0055] Specific examples of the present invention will be described in detail below, but the present invention is not limited to the following specific examples.
[0056] figure 1 A schematic composition diagram of an MRI device according to an embodiment of the present invention is shown. Such as figure 1 As shown, the MRI apparatus 100 includes a magnet 101 for providing a magnetic field, a movable carriage 103 for moving on a bed frame 102 to move a patient 105 thereon into the magnet 101 , and a radio frequency coil 104 . The radio frequency coil to which the present invention relates is the radio frequency coil 104 placed around a patient 105 in use. figure 2 An enlarged view of the RF coil 104 placed around the patient 105 and the range of action of each coil or coil component is shown. Such as figure 2 As shown, the radio frequency coil 104 generally includes a coil portion on the patient and a coil portion embedded in the movable carriage 103 under the patient. ...
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The invention discloses MRI (magnetic resonance imaging) equipment and a method for determining a radio-frequency coil position and selecting a radio-frequency coil. The method comprises the following steps of: providing a corresponding relation table between moving time and moving distance of a movable bracket, and storing the corresponding relation table in the MRI equipment; arranging a coil marker at a first preset position on the radio-frequency coil; arranging a detector for detecting the coil marker at a second preset position in the MRI equipment, wherein when the coil marker moves with the movable bracket and passes through the detector, the detector can detect the coil marker; recoding the time thatwhen the coil marker is detected; looking up the corresponding relation table according to the time to determine the distance corresponding to the time; and determining the position of the radio-frequency coil or the positions of coil subparts forming the radio-frequency coil according to the determined distance and information related to the first preset position and the second preset position.
Description
technical field [0001] The present invention generally relates to the field of magnetic resonance imaging (MRI, magnetic resonance imaging), and more particularly relates to an MRI device, a method for determining the position of a radio frequency coil and selecting a radio frequency coil. Background technique [0002] Magnetic resonance imaging equipment uses the magnetic resonance properties of the magnetic nuclei (mainly hydrogen nuclei) of organisms in a magnetic field to perform imaging. With the advancement of superconducting technology, magnet technology, electronic technology, computer technology and material science, MRI equipment has developed rapidly. Since the phenomenon of magnetic resonance is harmless to the living body, MRI equipment is very useful in the medical field and is often used for detailed examination of whole body systems. MRI equipment has become one of the most advanced and expensive modern diagnostic equipment. [0003] The main physical compo...
Claims
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IPC IPC(8): A61B5/055G01R33/28G01R33/30
Inventor 戴擎宇周洁宋毅谷会东杨亮亮
Owner GE MEDICAL SYST GLOBAL TECH CO LLC