Nasal NKT cell lymphoma radiotherapy target area automatic sketching method and device

Abstract

The invention relates to the technical field of medical images, and discloses a nasal cavity NKT cell lymphoma radiotherapy target area automatic sketching method and device, and the method comprises the steps: collecting a sketched nasal cavity NKT cell lymphoma CT image; preprocessing the CT image to obtain a deep learning data set; training the deep learning data set in a deep neural network model to obtain a nasal cavity NKT cell lymphoma sketching model; and preprocessing the clinical CT image, and inputting the preprocessed clinical CT image into the nasal cavity NKT cell lymphoma sketching model for sketching. The method and device solve the problem that in the prior art, due to the fact that the individual difference between patients is large, it is often difficult to define a universal template to meet the delineation requirement when existing deformation registration is adopted as a delineation method, and consequently the delineation precision is low.

Description

technical field [0001] The invention relates to the technical field of medical images, in particular to a method and device for automatically delineating a radiotherapy target area of ​​nasal cavity NKT cell lymphoma. Background technique [0002] Nasal NK / T cell lymphoma is a more common malignant lymphoma in Asia, Latin America, and South America. It is more common in China, Japan, and South Korea in East Asia, and it often occurs in young and middle-aged men aged 30-50. Radiation therapy, referred to as radiotherapy, uses high-energy radiation to damage DNA, prompting tumor cells to stop growing and slow down their growth. Because nasal NK / T cell lymphoma is sensitive to radiotherapy and resistant to chemotherapy, radiotherapy has become one of the main treatment methods for early nasal NK / T cell lymphoma. [0003] Before patients receive radiotherapy, they need to take computed tomography (CT) images, and then radiologists outline the area containing the tumor on the CT...

AI Technical Summary

Problems solved by technology

[0006] Based on the above technical problems, the present invention provides a method for automatically delineating the radiotherapy target area of ​​nasal cavity NKT cell lymphoma, which solves the problem of using existing deformation registration as the delineation method due to the large individual differences between patients. It is often difficult to define a general template to meet the needs of sketching, which leads to the problem of low sketching accuracy

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