Puncture method based on phase registration

Abstract

The invention discloses a puncture method based on phase registration. The puncture method comprises the steps that any 3D image in 4D images is selected as a planning image for planning; acquiring a breathing curve of the patient; acquiring the position of a lesion feature in the 4D image to obtain a lesion feature motion curve; performing phase matching on the respiration curve and the focus characteristic motion curve to obtain a mapping relation between the respiration curve and the focus characteristic motion curve; according to the phase point of the planning image on the focus characteristic motion curve and the mapping relation, obtaining the corresponding amplitude of the planning image in the respiration curve, and recording the amplitude as a target amplitude; monitoring the breathing of the patient in real time, and executing the planning result when the breathing amplitude of the patient reaches the target amplitude. The corresponding relation is established between the phase point of the planned image and the breathing amplitude of the breathing curve, the puncture phase can be prompted to be reached through the amplitude change of the external breathing curve, and precise puncture is achieved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a puncture method based on phase registration. Background technique [0002] In clinical practice, especially in tumor treatment, more and more medical images are used as guidance, and then robotic arms are used to assist in the positioning of surgical tools, so as to perform minimally invasive surgery, so as to reduce patient wounds and speed up patient recovery. [0003] In lung puncture biopsy, ablation and other operations, because the patient is in a state of continuous breathing, and the main parts of puncture and ablation are the lungs and liver, etc., which are most affected by breathing, the mediastinal movement caused by the patient's breathing, the corresponding organs The maximum displacement of the internal lesion point can reach 5cm, so even experienced doctors cannot guarantee a 100% success rate. Surgical navigation-assisted robots for lung puncture and ...

AI Technical Summary

Problems solved by technology

[0003] In lung puncture biopsy, ablation and other operations, since the patient is in a state of continuous breathing, and the main parts of puncture and ablation are the lungs and liver, etc., which are most affected by breathing, the mediastinal movement caused by the patient's breathing, the corresponding organs The maximum displacement of the internal lesion can reach 5cm, so even experienced doctors cannot guarantee a 100% success rate

Surgical navigation-assisted robots for lung puncture and ablation have become a future trend. Because the movement laws of the lungs are difficult to grasp, the current surgical navigation-assisted robots cannot accurately grasp the movement laws of the lungs, and it is difficult to achieve precise surgery on the lesion.

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