An image guidance device for respiratory gating and nuclear magnetic resonance image fusion

Abstract

The invention discloses a respiratory gating and nuclear magnetic resonance (NMR) image guiding device. The respiratory gating and nuclear magnetic resonance image guiding device comprises a treatmentbed needed by a patient, a respiratory gating sensor, an NMR cavity containing an NMR device, an MR NMR image workstation, an image fusion acquisition device, an image fusion processing device (realization of image fusion algorithm), an image fusion display device, and a synchronous signal line connecting the respiratory gating sensing device and the fusion device. The current MR frame image obtain by the gating device and the fusing algorithm is used as a static background model, the foreground image is detected in the MR image of the patient's normal breathing condition, and the moving tumor target is extracted to ensure that the tumor position is more accurate and the radiation dose of the tumor target area is more accurate and suitable when the patient is in the state of breathing. When a doctor carries out radiotherapy on a patient, the patient only needs to hold his breath once to obtain a gating signal, and the later treatment only needs normal breathing, which is beneficial tothe clinical treatment of the patient.

Description

technical field [0001] The invention belongs to the technical field of medical machinery and equipment, and relates to a respiratory gating and nuclear magnetic resonance image fusion image guidance technology, in particular to a respiratory gating and nuclear magnetic resonance image fusion image guidance device and method thereof. Background technique [0002] At present, the development of medical electromechanical equipment has greatly helped the development of advanced treatment technology, but there is still a lot of room for improvement in some treatment modalities. For example, when a doctor performs radiation therapy on a patient, it is generally necessary to position the patient and transfer the bed to a designated position. The technician often cannot know the real position of the patient lying on the treatment bed, such as the distance between the human body and the rotating frame, treatment head, etc. . In the current radiotherapy process, the patient's breathi...

AI Technical Summary

Problems solved by technology

In the clinical process, patients participating in radiotherapy, especially those in the advanced stage (stage III, IV), are relatively weak, and it is difficult to obtain accurate gating signals. Especially during the treatment process, patients need to hold their breath all the time, which is very unfavorable for clinical treatment

Images