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Kidney tumor segmentation method and system based on CT angiography image based on three-dimensional convolutional neural network

An imaging image and neural network technology, applied in the field of medical image processing, can solve the problems of difficult segmentation of kidney tumors and poor segmentation effect, and achieve the effect of enhancing network learning ability, improving segmentation effect, and improving segmentation accuracy.

Active Publication Date: 2021-09-28
SOUTHEAST UNIV
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Problems solved by technology

[0011] The technical problem to be solved by the present invention: Aiming at the existing problems of difficult segmentation and poor segmentation effect of renal tumors, the present invention proposes a kidney tumor segmentation method and system based on three-dimensional convolutional neural network for CT contrast images

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  • Kidney tumor segmentation method and system based on CT angiography image based on three-dimensional convolutional neural network
  • Kidney tumor segmentation method and system based on CT angiography image based on three-dimensional convolutional neural network
  • Kidney tumor segmentation method and system based on CT angiography image based on three-dimensional convolutional neural network

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Embodiment

[0069] Embodiment: A three-dimensional deep neural network based on a fully convolutional network proposes to mix continuous two-dimensional CT slices or continuous texture information in MR images. Experimental results show that 3D neural networks generally have better performance than 2D convolutional neural networks in segmentation tasks of different organs, such as liver tumors, brain tumors, lumbar spine, confocal laser microscopy images, etc. After introducing the specific steps and models of the present invention, the test results of the invention on the data set are shown below.

[0070] The experiment uses the CT contrast images obtained in cooperation with the Radiology Department of Jiangsu Provincial People's Hospital. The initial data is 14 patients, and the size is 512×512×200. Because in the CT images of the original patients, irrelevant background areas occupy a large volume, here Some preprocessing was done on the data. Figure 4 It is a 3-dimensional CT cont...

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Abstract

The invention discloses a three-dimensional convolutional neural network-based method for segmenting kidney tumors in CT contrast images. In this method, the kidney area in the CT contrast image is roughly segmented first, and the kidney and tumor are marked separately to generate a data set, and then the training set is sent to the convolutional neural network based on the pyramid pooling and stepwise feature enhancement modules for training. , get the training model, use the obtained training model to predict the new kidney data, and get the segmentation mask of the kidney tumor. The present invention also proposes a renal tumor segmentation system for CT contrast images based on a three-dimensional convolutional neural network. The present invention mainly solves the problem of difficult image segmentation of renal tumors, and the segmentation mask of renal tumors can be obtained directly through the present invention.

Description

technical field [0001] The invention relates to a medical image processing technology, which belongs to the field of computer application technology. Background technique [0002] Kidney cancer is one of the ten most common cancers in humans. In recent years, traditional radical nephrectomy (RN) is increasingly replacing minimally invasive laparoscopic partial nephrectomy (LPN) for the clinical treatment of local renal cancer. [1] . LPN surgery can remove kidney tumors and preserve normal kidney tissue. In particular, the newly proposed partial resection surgery based on renal artery occlusion technique can preserve renal function to the greatest extent [2] . In order to perform LPN surgery, some useful information, such as tumor size, location, renal anatomy, renal artery and ureter, etc., should be obtained from CT images before surgery. However, manually delineating more than 200 CT slices is a time-consuming and labor-intensive task. Therefore, automatic or semi-au...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11
CPCG06T7/0012G06T2207/10081G06T2207/20081G06T2207/20084G06T7/11
Inventor 杨冠羽潘覃李国清周忠稳王传霞孔佑勇伍家松杨淳沨舒华忠罗立民
Owner SOUTHEAST UNIV
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