A magnetic resonance system and its positioning and imaging control method

Abstract

The invention discloses a magnetic resonance system and a positioning and imaging control method of the magnetic resonance system. The magnetic resonance system comprises a magnetic resonance main machine, a movable bed plate and a local coil, the bed plate moves to enter the magnetic resonance main machine, an optical signal receiving device is arranged on the magnetic resonance main machine, and an optical signal emitting device is installed on the bed plate or the local coil. According to the magnetic resonance system and the positioning and imaging control method of the magnetic resonance system, by arranging the optical signal receiving device and the optical signal emitting device, a patient is automatically positioned to the center of a magnetic resonance examination area in a stepping mode or a fast positioning mode, and thus the positioning and imaging operation is simplified, positioning accuracy is improved, examination cost is saved, and the actual imaging operation requirements are met better.

Description

technical field [0001] The invention relates to a medical image scanning system and its positioning and imaging control method, in particular to a magnetic resonance system and its positioning and imaging control method. Background technique [0002] In the magnetic resonance imaging system, the position of the patient to be examined needs to be positioned at the center of the examination area of ​​the magnetic resonance system. The existing positioning technology mainly uses laser positioning, such as figure 1 As shown, the bed board 2 is set in the hollow magnet 1, and a cross laser light 6 is set at the front end of the magnetic resonance aperture 5. After the patient wears the coil 3, the operator moves the bed board 2 through the control panel, and the patient 4 to be examined The position is moved to the cross laser beam 7, and then the positioning command is started, and the patient bed controller completes the positioning of the patient's examination position to the...

AI Technical Summary

Problems solved by technology

[0003] The laser beam used in this positioning technology is potentially harmful to the examinee, and the operation is complicated. Each scan takes a lot of manual positioning time, which not only increases the time of MRI examination and manual operation costs, but also due to the limitations of manual visual positioning. Factors bring positioning bias

[0004] In addition, there are currently methods of using image sensor technology to achieve positioning, such as the positioning method disclosed in Chinese Patent No. ZL200920145228.4 using image sensors to remotely find positioning marks, such as figure 2 As shown, this method does not use laser beam positioning, which removes the potential hazards of laser light, but adds an image sensor 8 placed above the hospital bed and the patient, and needs to install a locator 9 and a positioning mark 10

This solution uses remote operation for positioning. In fact, the operation is complicated and the positioning time is long. An additional locator is added above the hospital bed, which brings a certain psychological burden to the examinee.

Images