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Radio-frequency dosimetry is an important process in human safety and for compliance of related products. Recently, computational human models generated from medical images have often been used for such assessment, especially to consider…

Machine Learning · Computer Science 2020-04-29 Essam A. Rashed , Yinliang Diao , Akimasa Hirata

Radiation therapy is the primary method used to treat cancer in the clinic. Its goal is to deliver a precise dose to the planning target volume (PTV) while protecting the surrounding organs at risk (OARs). However, the traditional workflow…

Image and Video Processing · Electrical Eng. & Systems 2024-04-10 Tara Gheshlaghi , Shahabedin Nabavi , Samire Shirzadikia , Mohsen Ebrahimi Moghaddam , Nima Rostampour

Classification of cancer cellularity within tissue samples is currently a manual process performed by pathologists. This process of correctly determining cancer cellularity can be time intensive. Deep Learning (DL) techniques in particular…

Image and Video Processing · Electrical Eng. & Systems 2022-11-10 Jacob D. Beckmann , Kosta Popovic

We show dense voxel embeddings learned via deep metric learning can be employed to produce a highly accurate segmentation of neurons from 3D electron microscopy images. A "metric graph" on a set of edges between voxels is constructed from…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Kisuk Lee , Ran Lu , Kyle Luther , H. Sebastian Seung

Early detection of lung cancer is crucial for effective treatment and relies on accurate volumetric assessment of pulmonary nodules in CT scans. Traditional methods, such as consolidation-to-tumor ratio (CTR) and spherical approximation,…

Image and Video Processing · Electrical Eng. & Systems 2025-08-29 Yihan Zhou , Haocheng Huang , Yue Yu , Jianhui Shang

Fully convolutional networks (FCNs), including UNet and VNet, are widely-used network architectures for semantic segmentation in recent studies. However, conventional FCN is typically trained by the cross-entropy or Dice loss, which only…

Image and Video Processing · Electrical Eng. & Systems 2021-01-26 Kelei He , Chunfeng Lian , Ehsan Adeli , Jing Huo , Yang Gao , Bing Zhang , Junfeng Zhang , Dinggang Shen

Background: Accurate and fast dose calculation is essential for optimizing carbon ion therapy. Existing machine learning (ML) models have been developed for other radiotherapy modalities. They use patient data with uniform CT imaging…

Due to cellular heterogeneity, cell nuclei classification, segmentation, and detection from pathological images are challenging tasks. In the last few years, Deep Convolutional Neural Networks (DCNN) approaches have been shown…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Md Zahangir Alom , Chris Yakopcic , Tarek M. Taha , Vijayan K. Asari

The need for advanced materials has led to the development of complex, multi-component alloys or solid-solution alloys. These materials have shown exceptional properties like strength, toughness, ductility, electrical and electronic…

Recent works in automated radiotherapy treatment planning have used machine learning based on historical treatment plans to infer the spatial dose distribution for a novel patient directly from the planning image. We present an atlas-based…

Medical Physics · Physics 2017-08-02 Chris McIntosh , Mattea Welch , Andrea McNiven , David A. Jaffray , Thomas G. Purdie

Purpose: To determine whether deep learning models can distinguish between breast cancer molecular subtypes based on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Materials and methods: In this institutional review…

Computer Vision and Pattern Recognition · Computer Science 2017-12-01 Zhe Zhu , Ehab Albadawy , Ashirbani Saha , Jun Zhang , Michael R. Harowicz , Maciej A. Mazurowski

We present a method for estimating intravoxel parameters from a DW-MRI based on deep learning techniques. We show that neural networks (DNNs) have the potential to extract information from diffusion-weighted signals to reconstruct cerebral…

Image and Video Processing · Electrical Eng. & Systems 2022-01-02 Hanna Ehrlich , Mariano Rivera

Breast density, which is the ratio between fibroglandular tissue (FGT) and total breast volume, can be assessed qualitatively by radiologists and quantitatively by computer algorithms. These algorithms often rely on segmentation of breast…

Image and Video Processing · Electrical Eng. & Systems 2020-12-09 Bas H. M. van der Velden , Max A. A. Ragusi , Markus H. A. Janse , Claudette E. Loo , Kenneth G. A. Gilhuijs

An important part of breast cancer staging is the assessment of the sentinel axillary node for early signs of tumor spreading. However, this assessment by pathologists is not always easy and retrospective surveys often requalify the status…

Quantitative Methods · Quantitative Biology 2024-04-30 Eric Bonnet

The treatment planning process for patients with head and neck (H&N) cancer is regarded as one of the most complicated due to large target volume, multiple prescription dose levels, and many radiation-sensitive critical structures near the…

Medical Physics · Physics 2019-03-27 Dan Nguyen , Xun Jia , David Sher , Mu-Han Lin , Zohaib Iqbal , Hui Liu , Steve Jiang

Deep neural networks have received considerable attention in clinical imaging, particularly with respect to the reduction of radiation risk. Lowering the radiation dose by reducing the photon flux inevitably results in the degradation of…

Image and Video Processing · Electrical Eng. & Systems 2021-09-14 Khalid L. Alsamadony , Ertugrul U. Yildirim , Guenther Glatz , Umair bin Waheed , Sherif M. Hanafy

Particle physics simulations are the cornerstone of nuclear engineering applications. Among them radiotherapy (RT) is crucial for society, with 50% of cancer patients receiving radiation treatments. For the most precise targeting of tumors,…

Machine Learning · Computer Science 2021-09-10 Oscar Pastor-Serrano , Zoltán Perkó

Dose-Volume Histogram (DVH) prediction is fundamental in radiation therapy that facilitate treatment planning, dose evaluation, plan comparison and etc. It helps to increase the ability to deliver precise and effective radiation treatments…

Machine Learning · Computer Science 2024-02-05 Zehao Dong , Yixin Chen , Tianyu Zhao

Deep neural networks have recently achieved state of the art performance thanks to new training algorithms for rapid parameter estimation and new regularization methods to reduce overfitting. However, in practice the network architecture…

Machine Learning · Computer Science 2016-03-04 Minyoung Kim , Luca Rigazio

Near infrared diffuse optical tomography (DOT) provides an imaging modality for the oxygenation of tissue. In this paper, we propose a novel machine learning algorithm based on time-domain radiative transfer equation. We use temporal…

Medical Physics · Physics 2020-11-26 Yu-ichi Takamizu , Masayuki Umemura , Hidenobu Yajima , Makito Abe , Yoko Hoshi