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Waveguides have been successfully used to generate magnetic resonance images at 7 T with whole-body systems. The bore limits the magnetic resonance signal transmitted because its specific cut-off frequency is greater than the majority of…

Medical Physics · Physics 2015-06-12 F. Vazquez , R. Martin , O. Marrufo , A. O. Rodriguez

Multimodal deep learning has improved prognostic accuracy for brain tumours by integrating histopathology and genomic data, yet the contribution of volumetric MRI within unified survival frameworks remains unexplored. This pilot study…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Iain Swift , JingHua Ye

Breast cancer is one of the most threatening diseases in women's life; thus, the early and accurate diagnosis plays a key role in reducing the risk of death in a patient's life. Mammography stands as the reference technique for breast…

Machine Learning · Computer Science 2023-05-05 Juan Zuluaga-Gomez

High-dose-rate brachytherapy is a tumor treatment method where a highly radioactive source is brought in close proximity to the tumor. In this paper we develop a simulated annealing algorithm to optimize the dwell times at preselected dwell…

Medical Physics · Physics 2017-03-29 Timo M. Deist , Bram L. Gorissen

Glioblastoma (GBM) is a highly aggressive primary brain tumor with limited therapeutic options and poor prognosis. The methylation status of the O6-methylguanine-DNA methyltransferase (MGMT) gene promoter is a critical molecular biomarker…

Machine Learning · Computer Science 2026-01-13 Hasan M Jamil

Purpose: Radiotherapy commonly relies on CT, but there is growing interest in using hybrid PET/MR. Therefore, dedicated hardware setups have been proposed for PET/MR systems which enable imaging in radiotherapy treatment position. These…

Medical Physics · Physics 2024-11-14 R. M. Winter , O. Engelsen , O. J. Bratting , N. Brekke , J. Sæterstøl , O. Sæther , K. R. Redalen

We have previously described RapidBrachyMCTPS, a brachytherapy treatment planning toolkit consisting of a graphical user interface (GUI) and a Geant4-based Monte Carlo (MC) dose calculation engine. This work describes the tools that have…

Medical Physics · Physics 2020-07-07 Harry Glickman , Majd Antaki , Christopher Deufel , Shirin A. Enger

Breast cancer is the second leading cause of cancer-related death after lung cancer in women. Early detection of breast cancer in X-ray mammography is believed to have effectively reduced the mortality rate. However, a relatively high false…

Image and Video Processing · Electrical Eng. & Systems 2021-02-16 Xuejiao Tang , Liuhua Zhang , Wenbin Zhang , Xin Huang , Vasileios Iosifidis , Zhen Liu , Mingli Zhang , Enza Messina , Ji Zhang

Purpose: Magnetic resonance imaging (MRI) to visualize anatomical motion is becoming increasingly important when treating cancer patients with radiotherapy. Hybrid MRI-linear accelerator (MRI-linac) systems allow real-time motion management…

Tomography medical imaging is essential in the clinical workflow of modern cancer radiotherapy. Radiation oncologists identify cancerous tissues, applying delineation on treatment regions throughout all image slices. This kind of task is…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Chun-Hung Chao , Yen-Chi Cheng , Hsien-Tzu Cheng , Chi-Wen Huang , Tsung-Ying Ho , Chen-Kan Tseng , Le Lu , Min Sun

Automation of brain tumors in 3D magnetic resonance images (MRIs) is key to assess the diagnostic and treatment of the disease. In recent years, convolutional neural networks (CNNs) have shown improved results in the task. However, high…

Image and Video Processing · Electrical Eng. & Systems 2020-09-28 Laura Mora Ballestar , Veronica Vilaplana

High-dose-rate (HDR) brachytherapy plays a critical role in the treatment of locally advanced cervical cancer but remains highly dependent on manual treatment planning expertise. The objective of this study is to develop a fully automated…

Magnetic resonance (MR) imaging is essential for evaluating central nervous system (CNS) tumors, guiding surgical planning, treatment decisions, and assessing postoperative outcomes and complication risks. While recent work has advanced…

Inspired by the success of Convolutional Neural Networks (CNN), we develop a novel Computer Aided Detection (CADe) system using CNN for Glioblastoma Multiforme (GBM) detection and segmentation from multi channel MRI data. A two-stage…

Computer Vision and Pattern Recognition · Computer Science 2018-06-21 Subhasis Banerjee , Sushmita Mitra , Anmol Sharma , B. Uma Shankar

Volumetric images from Magnetic Resonance Imaging (MRI) provide invaluable information in preoperative staging of rectal cancer. Above all, accurate preoperative discrimination between T2 and T3 stages is arguably both the most challenging…

Image and Video Processing · Electrical Eng. & Systems 2022-09-14 Joohyung Lee , Jieun Oh , Inkyu Shin , You-sung Kim , Dae Kyung Sohn , Tae-sung Kim , In So Kweon

Automated segmentation of brain tumors from 3D magnetic resonance images (MRIs) is necessary for the diagnosis, monitoring, and treatment planning of the disease. Manual delineation practices require anatomical knowledge, are expensive,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Andriy Myronenko

Purpose: To develop clinically relevant test cases for commissioning Model-Based Dose Calculation Algorithms (MBDCAs) for 192Ir High Dose Rate (HDR) gynecologic brachytherapy following the workflow proposed by the TG-186 report and the…

Medical Physics · Physics 2026-01-27 V. Peppa , M. Robitaille , F. Akbari , S. A. Enger , R. M. Thomson , F. Mourtada , G. P. Fonseca

The diagnosis and treatment of various diseases had been expedited with the help of medical imaging. Different medical imaging modalities, including X-ray, Computed Tomography (CT), Magnetic Resonance Imaging (MRI), Nuclear Imaging,…

Image and Video Processing · Electrical Eng. & Systems 2024-09-01 S. K. M Shadekul Islam , MD Abdullah Al Nasim , Ismail Hossain , Md Azim Ullah , Kishor Datta Gupta , Md Monjur Hossain Bhuiyan

Brain tumors pose significant health challenges worldwide, with glioblastoma being one of the most aggressive forms. Accurate determination of the O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation status is crucial for…

Image and Video Processing · Electrical Eng. & Systems 2023-10-10 Dimitrios Kollias , Karanjot Vendal , Priyanka Gadhavi , Solomon Russom

Identifying key pathological features in brain MRIs is crucial for the long-term survival of glioma patients. However, manual segmentation is time-consuming, requiring expert intervention and is susceptible to human error. Therefore,…

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