Method for positioning three-dimensional coordinate of ultrasonic probe based on magnetic resonance image
A magnetic resonance image and ultrasonic probe technology, applied in the field of biomedical engineering, can solve the problems of inability to evaluate the therapeutic effect, inability to accurately monitor the temperature of the treatment target area, inability to accurately locate the treatment ultrasonic technology, etc. The effect of small MRI distortion and localization error reduction
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[0032] A method for positioning the three-dimensional coordinates of an ultrasound probe based on magnetic resonance images. It is used for positioning the three-dimensional coordinates of the ultrasound probe in a magnetic resonance guided ultrasound treatment system. During ultrasound treatment, the ultrasound probe is immersed in degassed water, and the diameter of the ultrasound probe is less than 40cm , The ultrasonic probe is a plane or a spherical cap where single-element or multi-element ultrasonic transducers (piezoelectric ceramic sheets) are distributed (for the spherical cap, this method is for the circular plane on the spherical cap). A plurality of positioning markers are distributed on the edge of the ultrasonic probe, and each positioning marker is provided with two positioning marking points. Such as Figure 1-Figure 2 As shown, the positioning markers are positioning grooves distributed on the edge of the ultrasound probe or positioning cylinde...
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