Intracranial hemorrhage detection model with optimized and enhanced window adjustment and construction method of intracranial hemorrhage detection model

A technology for intracranial hemorrhage and detection model, which is applied in the field of medical image processing and can solve problems such as low detection accuracy

Active Publication Date: 2020-10-27
HANGZHOU DIANZI UNIV +1
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low detection accuracy of the traditional deep learning method, to provide a window optimization enhanced intracranial hemorrhage detection model and its construction method, which can quickly and accurately locate the bleeding area

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  • Intracranial hemorrhage detection model with optimized and enhanced window adjustment and construction method of intracranial hemorrhage detection model
  • Intracranial hemorrhage detection model with optimized and enhanced window adjustment and construction method of intracranial hemorrhage detection model
  • Intracranial hemorrhage detection model with optimized and enhanced window adjustment and construction method of intracranial hemorrhage detection model

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Embodiment Construction

[0044] In order to quickly and accurately locate the hemorrhage area of ​​the cranial CT image, the invention provides a detection model of intracranial hemorrhage, which includes a window optimization enhancement module and a RetinaNet network. Its specific model structure is as figure 1 Shown:

[0045] figure 1 The windowing optimization enhancement module shown is constructed by a 1*1 convolution layer and a window activation function layer. This enables the fused RetinaNet network to be trained synchronously and to update the parameters of the optimized windowing module in a classification and regression task-specific manner via backpropagation methods. Among them, the window activation function layer constructs the cumulative distribution function that considers the gray scale of the image to reflect the lesion degree, transforms the sigmoid function, and defines the window activation function as follows:

[0046]

[0047] in, WW is the window width, WL is the win...

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Abstract

The invention relates to an intracranial hemorrhage detection model with optimized and enhanced window adjustment and a construction method of the intracranial hemorrhage detection model. The invention provides an intracranial hemorrhage detection model on one hand. The intracranial hemorrhage detection model comprises a window adjustment optimization enhancement module and a RetinaNet network. The window adjustment optimization enhancement module is constructed by a 1 * 1 convolution layer and a window activation function layer. The network comprises a basic feature extraction network, an FPNfeature pyramid and a classification and regression sub-network. On the other hand, the invention also provides a construction method of the intracranial hemorrhage detection model with optimized andenhanced window adjustment. The construction method comprises the following steps: step 1, preparing a craniocerebral CT examination data set and carrying out data preprocessing; step 2, constructingan intracranial hemorrhage detection model; step 3, training an intracranial hemorrhage detection model; and step 4, verifying the intracranial hemorrhage detection model. According to the invention,the contrast between a bleeding area and a normal tissue is enhanced through the window adjustment optimization module, and the accuracy of model detection is greatly improved by combining the feature extraction of ResNet and the setting of a network.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to a window-tuning optimized and enhanced intracranial hemorrhage detection model and a construction method thereof. Background technique [0002] Intracranial Hemorrhage (ICH) is one of the symptoms of acute stroke, which may lead to disability or death if not diagnosed and treated in time. Intracranial hemorrhage can be divided into five subtypes based on anatomical location and underlying cause: intraparenchymal hemorrhage (IPH), intraventricular hemorrhage (IVH), epidural hemorrhage (EDH), subdural hemorrhage (SDH), and subarachnoid hemorrhage (SAH). [0003] In the current clinical diagnosis of intracranial hemorrhage, radiologists generally read brain CT scans manually to determine whether there is ICH and the type of hemorrhage in the scan and locate the hemorrhage area. However, this process depends largely on the clinical experience of radiologists; if it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06K9/62G06N3/04G06N3/08
CPCG06T7/0012G06N3/084G06T2207/10081G06T2207/20081G06T2207/20084G06T2207/30016G06N3/045G06F18/241
Inventor 张雷何必仕徐哲张一荃
Owner HANGZHOU DIANZI UNIV
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