Noise reduction in CT image using prior knowledge aware iterative denoising

S Tao, K Rajendran, W Zhou, JG Fletcher… - Physics in Medicine …, 2020 - iopscience.iop.org
The clinical demand for low image noise often limits the slice thickness used in many CT
applications. However, a thick-slice image is more susceptible to longitudinal partial volume …

Denoising of polychromatic CT images based on their own noise properties

JH Kim, Y Chang, JB Ra - Medical Physics, 2016 - Wiley Online Library
Purpose: Because of high diagnostic accuracy and fast scan time, computed tomography
(CT) has been widely used in various clinical applications. Since the CT scan introduces …

[HTML][HTML] Quantitative evaluation of deep convolutional neural network-based image denoising for low-dose computed tomography

K Usui, K Ogawa, M Goto, Y Sakano… - Visual Computing for …, 2021 - Springer
To minimize radiation risk, dose reduction is important in the diagnostic and therapeutic
applications of computed tomography (CT). However, image noise degrades image quality …

A three-dimensional denoising method for low-dose computed tomography

S Xiaobao, D Yong, D Ruizhe… - Journal of Medical …, 2017 - ingentaconnect.com
Low-dose Computed Tomography (CT) becomes an increasingly significant research object
in recent years result from the harm of radiation used in X-ray CT to health of patients …

Comparison of CT noise reduction performances with deep learning-based, conventional, and combined denoising algorithms

ZA Balogh, BJ Kis - Medical Engineering & Physics, 2022 - Elsevier
Conventional noise reduction algorithms have been used in image processing for a very
long time, but recently, deep learning-based algorithms have been shown to significantly …

Low‐dose CT denoising via convolutional neural network with an observer loss function

M Han, H Shim, J Baek - Medical physics, 2021 - Wiley Online Library
Purpose: Convolutional neural network (CNN)‐based denoising is an effective method for
reducing complex computed tomography (CT) noise. However, the image blur induced by …

A deep learning-enabled iterative reconstruction of ultra-low-dose CT: use of synthetic sinogram-based noise simulation technique

CK Ahn, Z Yang, C Heo, H Jin, B Park… - Medical Imaging 2018 …, 2018 - spiedigitallibrary.org
Effective elimination of unique CT noise pattern while preserving adequate image quality is
crucial in reducing radiation dose to ultra-low-dose level in CT imaging practice. In this …

Adaptively tuned iterative low dose CT image denoising

SM Hashemi, NS Paul, S Beheshti… - … methods in medicine, 2015 - Wiley Online Library
Improving image quality is a critical objective in low dose computed tomography (CT)
imaging and is the primary focus of CT image denoising. State‐of‐the‐art CT denoising …

A review on CT image noise and its denoising

M Diwakar, M Kumar - Biomedical Signal Processing and Control, 2018 - Elsevier
CT imaging is widely used in medical science over the last decades. The process of CT
image reconstruction depends on many physical measurements such as radiation dose …

Low-dose CT denoising using edge detection layer and perceptual loss

M Gholizadeh-Ansari, J Alirezaie… - 2019 41st Annual …, 2019 - ieeexplore.ieee.org
Low-dose CT imaging is a valid approach to reduce patients' exposure to X-ray radiation.
However, reducing X-ray current increases noise and artifacts in the reconstructed CT …