Automatic breast segmentation in digital mammography using a convolutional neural network

Author(s):  
Omid Haji Maghsoudi ◽  
Aimilia Gastounioti ◽  
Lauren Pantalone ◽  
Emily Conant ◽  
Despina Kontos
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Han Jiao ◽  
Xinhua Jiang ◽  
Zhiyong Pang ◽  
Xiaofeng Lin ◽  
Yihua Huang ◽  
...  

Breast segmentation and mass detection in medical images are important for diagnosis and treatment follow-up. Automation of these challenging tasks can assist radiologists by reducing the high manual workload of breast cancer analysis. In this paper, deep convolutional neural networks (DCNN) were employed for breast segmentation and mass detection in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). First, the region of the breasts was segmented from the remaining body parts by building a fully convolutional neural network based on U-Net++. Using the method of deep learning to extract the target area can help to reduce the interference external to the breast. Second, a faster region with convolutional neural network (Faster RCNN) was used for mass detection on segmented breast images. The dataset of DCE-MRI used in this study was obtained from 75 patients, and a 5-fold cross validation method was adopted. The statistical analysis of breast region segmentation was carried out by computing the Dice similarity coefficient (DSC), Jaccard coefficient, and segmentation sensitivity. For validation of breast mass detection, the sensitivity with the number of false positives per case was computed and analyzed. The Dice and Jaccard coefficients and the segmentation sensitivity value for breast region segmentation were 0.951, 0.908, and 0.948, respectively, which were better than those of the original U-Net algorithm, and the average sensitivity for mass detection achieved 0.874 with 3.4 false positives per case.


2021 ◽  
Author(s):  
Shima Baniadam Dizaj ◽  
Pourya Valizadeh

Abstract Breast most cancers is one of the main reasons of mortality in ladies throughout the world. Early detection contributes to a discount withinside the quantity of untimely fatalities. Using ultrasound (US) pics, we gift deep studying (DL) strategies for breast most cancers segmentation and category into 3 classes: regular, benign, and malignant. The versions in most cancers length and traits are the mission of segmentation and category tasks. The proposed technique became evolved and evaluated the use of US pics amassed from 780 breast cancers. This has a look at tested using deep studying to scientific pics of breast most cancers acquired with the aid of using ultrasound scan. For evaluation, we used intersection over union (IoU), accuracy. When evaluated with IoU the nice proposed technique yielded 100%curacy on regular breast segmentation, 79.27% on benign, and 93.73% on malignant most cancers. Also, the accuracy of category three classes is 87.86%. Our have a look at indicates the usefulness of deep studying techniques for breast most cancers segmentation and category. You can locate the preskilled weights and elements of our Implementation and the prediction of our technique may be located at https://github.com/shb8086/Cancer.


2020 ◽  
Author(s):  
S Kashin ◽  
D Zavyalov ◽  
A Rusakov ◽  
V Khryashchev ◽  
A Lebedev

2020 ◽  
Vol 2020 (10) ◽  
pp. 181-1-181-7
Author(s):  
Takahiro Kudo ◽  
Takanori Fujisawa ◽  
Takuro Yamaguchi ◽  
Masaaki Ikehara

Image deconvolution has been an important issue recently. It has two kinds of approaches: non-blind and blind. Non-blind deconvolution is a classic problem of image deblurring, which assumes that the PSF is known and does not change universally in space. Recently, Convolutional Neural Network (CNN) has been used for non-blind deconvolution. Though CNNs can deal with complex changes for unknown images, some CNN-based conventional methods can only handle small PSFs and does not consider the use of large PSFs in the real world. In this paper we propose a non-blind deconvolution framework based on a CNN that can remove large scale ringing in a deblurred image. Our method has three key points. The first is that our network architecture is able to preserve both large and small features in the image. The second is that the training dataset is created to preserve the details. The third is that we extend the images to minimize the effects of large ringing on the image borders. In our experiments, we used three kinds of large PSFs and were able to observe high-precision results from our method both quantitatively and qualitatively.


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