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Proceedings ArticleDOI

Analysis of Deep Neural Network Architectures and Similarity Metrics for Low-Dose CT Reconstruction

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TLDR
Experimental results showed that selection of loss function can have significant impact on model performance, with the GSSIM metric outperforming other contemporary metrics SSIM, MSSSIM and MSE.
Abstract
Computed tomography (CT) is a widely used imaging technique in the medical field. During CT procedures patients are exposed to high amounts of radiation, posing a tangible threat to their health. Developed low-dose procedures lower exposure but produce noise and artifacts in images. To improve diagnostic accuracy, deep learning techniques are proposed to remove noises and artifacts from low-dose images. In this paper, the performance of several neural network architectures and similarity metrics as loss functions for low-dose CT image reconstruction are analyzed. Experimental results showed that selection of loss function can have significant impact on model performance, with the GSSIM metric outperforming other contemporary metrics SSIM, MSSSIM and MSE. Experiments were conducted using open-access and local cancer research institution data.

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Journal ArticleDOI

The use of deep learning methods in low-dose computed tomography image reconstruction: a systematic review

TL;DR: In this paper , the authors performed a systematic search of the literature from 2016 to 2021 in Springer, Science Direct, arXiv, PubMed, ACM, IEEE, and Scopus to determine their characteristics, availability, intended use and expected outputs concerning low-dose CT image reconstruction.
Proceedings ArticleDOI

Analysis of Information Compression of Medical Images for Survival Models

TL;DR: In this article, the authors investigate the methods for extraction of significant information from medical breast cancer images for survival analysis using unsupervised learning models for information compression to bottlenecks via convolutional neural networks and autoencoders.
References
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U-Net: Convolutional Networks for Biomedical Image Segmentation

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Image quality assessment: from error visibility to structural similarity

TL;DR: In this article, a structural similarity index is proposed for image quality assessment based on the degradation of structural information, which can be applied to both subjective ratings and objective methods on a database of images compressed with JPEG and JPEG2000.
Posted Content

U-Net: Convolutional Networks for Biomedical Image Segmentation

TL;DR: It is shown that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks.
Posted Content

Generative Adversarial Networks

TL;DR: In this article, a generative adversarial network (GAN) is proposed to estimate generative models via an adversarial process, in which two models are simultaneously trained: a generator G and a discriminator D that estimates the probability that a sample came from the training data rather than G.
Journal ArticleDOI

Deep Convolutional Neural Network for Inverse Problems in Imaging

TL;DR: In this paper, the authors proposed a deep convolutional neural network (CNN)-based algorithm for solving ill-posed inverse problems, which combines multiresolution decomposition and residual learning in order to learn to remove these artifacts while preserving image structure.
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