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Purpose: Radio-frequency ablations play an important role in the therapy of malignant liver lesions. The navigation of a needle to the lesion poses a challenge for both the trainees and intervening physicians. Methods: This publication…

Medical Physics · Physics 2019-07-18 Niclas Kath , Heinz Handels , Andre Mastmeyer

Focused transmits are the most commonly used transmit strategy for echocardiograms, but suffer from relatively low frame rates, and in 3D, even lower volume rates. Fast imaging based on unfocused transmits has disadvantages such as motion…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Wessel L. van Nierop , Oisín Nolan , Tristan S. W. Stevens , Ruud J. G. van Sloun

Real-time acquisition of accurate scene depth is essential for automated robotic minimally invasive surgery. Stereo matching with binocular endoscopy can provide this depth information. However, existing stereo matching methods, designed…

Image and Video Processing · Electrical Eng. & Systems 2025-10-16 Yang Ding , Can Han , Sijia Du , Yaqi Wang , Dahong Qian

Objectives: Analyze the types of studies and algorithms that are most applied, Identify the anatomical regions treated. Determine the application of parallel techniques used in studies carried out between 2010 and 2022 in research on noise…

Image and Video Processing · Electrical Eng. & Systems 2023-01-05 Sussana M. Florez-Aroni , Mijail A. Hancco-Condori , Fred Torres-Cruz

Method: In this study, a new method is introduced for distinguishing noise-free segments of ECG from noisy segments that use sample amplitude dispersion with an adoptive threshold for variance of samples amplitude and a method which uses…

Signal Processing · Electrical Eng. & Systems 2021-05-24 Zahra Rezaei Khavas , Babak Mohammadzadeh Asl

Ultrasound computed tomography (USCT) is a promising technique that achieves superior medical imaging reconstruction resolution by fully leveraging waveform information, outperforming conventional ultrasound methods. Despite its advantages,…

Image and Video Processing · Electrical Eng. & Systems 2024-07-23 Yi Sheng , Hanchen Wang , Yipei Liu , Junhuan Yang , Weiwen Jiang , Youzuo Lin , Lei Yang

Automating classification and segmentation process of abnormal regions in different body organs has a crucial role in most of medical imaging applications such as funduscopy, endoscopy, and dermoscopy. Detecting multiple abnormalities in…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Mohsen Hajabdollahi , Reza Esfandiarpoor , Elyas Sabeti , Nader Karimi , Kayvan Najarian , S. M. Reza Soroushmehr , Shadrokh Samavi

Parameter estimation and uncertainty quantification are crucial in computational cardiology, as they enable the construction of digital twins that faithfully replicate the behavior of physical patients. Robust and efficient mathematical…

Numerical Analysis · Mathematics 2022-10-07 Matteo Salvador , Francesco Regazzoni , Luca Dede' , Alfio Quarteroni

This study performs parameter inference in a partial differential equations system of pulmonary circulation. We use a fluid dynamics network model that takes selected parameter values and mimics the behaviour of the pulmonary haemodynamics…

Cardiac ultrasound diagnosis is critical for cardiovascular disease assessment, but acquiring standard views remains highly operator-dependent. Existing medical segmentation models often yield anatomically inconsistent results in images…

Robotics · Computer Science 2026-03-24 Zhiyan Cao , Zhengxi Wu , Yiwei Wang , Pei-Hsuan Lin , Li Zhang , Zhen Xie , Huan Zhao , Han Ding

Disease progression modeling (DPM) using longitudinal data is a challenging task in machine learning for healthcare that can provide clinicians with better tools for diagnosis and monitoring of disease. Existing DPM algorithms neglect…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Mostafa Mehdipour Ghazi , Mads Nielsen , Akshay Pai , M. Jorge Cardoso , Marc Modat , Sebastien Ourselin , Lauge Sørensen

We study resonance contrast by a two-step pulse observation method to enhance the frequency stability of coherent population trapping (CPT) atomic clocks. The proposed method is a two-step Raman--Ramsey scheme with low intensity during…

Atomic Physics · Physics 2017-03-08 Yuichiro Yano , Shigeyoshi Goka , Masatoshi Kajita

An important paradigm in smart health is developing diagnosis tools and monitoring a patient's heart activity through processing Electrocardiogram (ECG) signals is a key example, sue to high mortality rate of heart-related disease. However,…

Signal Processing · Electrical Eng. & Systems 2018-11-02 Jiaming Chen , Ali Valehi , Abolfazl Razi

Photon-Counting Computed Tomography (PCCT) is a novel imaging modality that simultaneously acquires volumetric data at multiple X-ray energy levels, generating separate volumes that capture energy-dependent attenuation properties.…

Human-Computer Interaction · Computer Science 2025-08-21 Mohit Sharma , Emma Nilsson , Martin Falk , Talha Bin Masood , Lee Jollans , Anders Persson , Tino Ebbers , Ingrid Hotz

Accurate classification of brain tumors from magnetic resonance imaging (MRI) plays a critical role in early diagnosis and effective treatment planning. In this study, we propose a deep learning framework based on Vision Transformers (ViT)…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Faisal Ahmed

Computer simulation of "virtual interventions" may inform optimal valve repair for a given patient prior to intervention. However, the paucity of noninvasive methods to determine in vivo mechanical parameters of valves limits the accuracy…

Quantitative Methods · Quantitative Biology 2025-07-09 Wensi Wu , Mitchell Daneker , Christian Herz , Hannah Dewey , Jeffrey A. Weiss , Alison M. Pouch , Lu Lu , Matthew A. Jolley

Accurate uncertainty estimation is a critical need for the medical imaging community. A variety of methods have been proposed, all direct extensions of classification uncertainty estimations techniques. The independent pixel-wise…

Image and Video Processing · Electrical Eng. & Systems 2022-06-16 Thierry Judge , Olivier Bernard , Mihaela Porumb , Agis Chartsias , Arian Beqiri , Pierre-Marc Jodoin

This work aims to characterise renal tumour microstructure using diffusion MRI (dMRI); via the Vascular, Extracellular and Restricted Diffusion for Cytometry in Tumours (VERDICT)-MRI framework with self-supervised learning. Comprehensive…

Image and Video Processing · Electrical Eng. & Systems 2025-04-17 Snigdha Sen , Lorna Smith , Lucy Caselton , Joey Clemente , Maxine Tran , Shonit Punwani , David Atkinson , Richard L Hesketh , Eleftheria Panagiotaki

The importance of ultrasound is well established in the imaging of human tissue. In order to enhance image quality by exploiting nonlinear effects, recently techniques such as harmonic imaging and nonlinearity parameter tomography have been…

Analysis of PDEs · Mathematics 2025-02-13 Barbara Kaltenbacher

With the increased need for multi-center magnetic resonance imaging studies, problems arise related to differences in hardware and software between centers. Namely, current algorithms for brain volume quantification are unreliable for the…

Image and Video Processing · Electrical Eng. & Systems 2019-11-12 Maria Ines Meyer , Ezequiel de la Rosa , Koen Van Leemput , Diana M. Sima