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In recent years, the use of PACS for radiation therapy has become the norm in hospital environment and has suggested for collecting data and management from different TPSs with DICOM objects. However, some TPS does not provide the DVH…

Medical Physics · Physics 2015-03-16 Byung Jun Min , Heerim Nam , Il Sun Jeong , Hyebin Lee

Objective: To assess the performance of a probabilistic deep learning based algorithm for predicting inter-fraction anatomical changes in head and neck patients. Approach: A probabilistic daily anatomy model for head and neck patients…

Medical Physics · Physics 2024-11-12 Tiberiu Burlacu , Mischa Hoogeman , Danny Lathouwers , Zoltán Perkó

Currently, deep learning (DL) has achieved the automatic prediction of dose distribution in radiotherapy planning, enhancing its efficiency and quality. However, existing methods suffer from the over-smoothing problem for their commonly…

Image and Video Processing · Electrical Eng. & Systems 2023-11-07 Zhenghao Feng , Lu Wen , Peng Wang , Binyu Yan , Xi Wu , Jiliu Zhou , Yan Wang

A 3D deep learning model (OARnet) is developed and used to delineate 28 H&N OARs on CT images. OARnet utilizes a densely connected network to detect the OAR bounding-box, then delineates the OAR within the box. It reuses information from…

Image and Video Processing · Electrical Eng. & Systems 2021-11-24 Mumtaz Hussain Soomro , Hamidreza Nourzadeh , Victor Gabriel Leandro Alves , Wookjin Choi , Jeffrey V. Siebers

Accurate recurrence risk stratification is crucial for optimizing treatment plans for breast cancer patients. Current prognostic tools like Oncotype DX (ODX) offer valuable genomic insights for HR+/HER2- patients but are limited by cost and…

Image and Video Processing · Electrical Eng. & Systems 2024-09-25 Ziyu Su , Yongxin Guo , Robert Wesolowski , Gary Tozbikian , Nathaniel S. O'Connell , M. Khalid Khan Niazi , Metin N. Gurcan

In 2023, it is estimated that 81,800 kidney cancer cases will be newly diagnosed, and 14,890 people will die from this cancer in the United States. Preoperative dynamic contrast-enhanced abdominal computed tomography (CT) is often used for…

Image and Video Processing · Electrical Eng. & Systems 2023-12-12 Kwang-Hyun Uhm , Hyunjun Cho , Zhixin Xu , Seohoon Lim , Seung-Won Jung , Sung-Hoo Hong , Sung-Jea Ko

Significance: 2D fully convolutional neural networks have been shown capable of producing maps of sO$_2$ from 2D simulated images of simple tissue models. However, their potential to produce accurate estimates in vivo is uncertain as they…

Medical Physics · Physics 2020-05-05 Ciaran Bench , Andreas Hauptmann , Ben Cox

When a pre-trained general auto-segmentation model is deployed at a new institution, a support framework in the proposed Prior-guided DDL network will learn the systematic difference between the model predictions and the final contours…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Anjali Balagopal , Dan Nguyen , Ti Bai , Michael Dohopolski , Mu-Han Lin , Steve Jiang

Purpose: To develop a DL-based PBSPT dose prediction workflow with high accuracy and balanced complexity to support on-line adaptive proton therapy clinical decision and subsequent replanning. Methods: PBSPT plans of 103 prostate cancer…

Characterization of breast parenchyma on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a challenging task owing to the complexity of underlying tissue structures. Current quantitative approaches, including radiomics and…

Quantitative Methods · Quantitative Biology 2021-05-14 Fan Wang , Saarthak Kapse , Steven Liu , Prateek Prasanna , Chao Chen

Tumour heterogeneity in breast cancer poses challenges in predicting outcome and response to therapy. Spatial transcriptomics technologies may address these challenges, as they provide a wealth of information about gene expression at the…

Image and Video Processing · Electrical Eng. & Systems 2023-09-19 Md Mamunur Rahaman , Ewan K. A. Millar , Erik Meijering

Adaptive radiotherapy is a growing field of study in cancer treatment due to it's objective in sparing healthy tissue. The standard of care in several institutions includes longitudinal cone-beam computed tomography (CBCT) acquisitions to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 William Trung Le , Chulmin Bang , Philippine Cordelle , Daniel Markel , Phuc Felix Nguyen-Tan , Houda Bahig , Samuel Kadoury

The two-dimensional nature of mammography makes estimation of the overall breast density challenging, and estimation of the true patient-specific radiation dose impossible. Digital breast tomosynthesis (DBT), a pseudo-3D technique, is now…

Accurate segmentation of 3D medical scans is crucial for clinical diagnostics and treatment planning, yet existing methods often fail to achieve both high accuracy and computational efficiency across diverse anatomies and imaging…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Chenxin Yuan , Shoupeng Chen , Haojiang Ye , Yiming Miao , Limei Peng , Pin-Han Ho

Delineating and planning with respect to regions suspected to contain microscopic tumor cells is an inherently uncertain task in radiotherapy. The recently proposed \textit{clinical target distribution} (CTD) is an alternative to the…

Medical Physics · Physics 2023-04-26 Ivar Bengtsson , Anders Forsgren , Albin Fredriksson

Equivocal 3D lesion segmentation exhibits high inter-observer variability. Conventional deterministic models ignore this aleatoric uncertainty, producing over-confident masks that obscure clinical risks. Conversely, while generative methods…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Chao Wu , Kangxian Xie , Mingchen Gao

Colorectal liver metastases (CLM) significantly impact colon cancer patients, influencing survival based on systemic chemotherapy response. Traditional methods like tumor grading scores (e.g., tumor regression grade - TRG) for prognosis…

In this paper, a methodology is proposed that enables to analyze the sensitivity of the outcome of a therapy to unavoidable high dispersion of the patient specific parameters on one hand and to the choice of the parameters that define the…

Systems and Control · Electrical Eng. & Systems 2022-05-17 Mazen Alamir

In this work, we propose a novel rate control algorithm for Versatile Video Coding (VVC) standard based on its distinct rate-distortion characteristics. By modelling the transform coefficients with the composite Cauchy distribution, higher…

Multimedia · Computer Science 2020-08-28 Yunhao Mao , Meng Wang , Shiqi Wang , Sam Kwong