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Magnetic Resonance Imaging (MRI) is the gold standard for measuring fat and iron content non-invasively in the body via measures known as Proton Density Fat Fraction (PDFF) and $R_2^*$, respectively. However, conventional PDFF and $R_2^*$…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Suma Anand , Kaiwen Xu , Colm O'Dushlaine , Sumit Mukherjee

Purpose: MRI cell tracking can be used to monitor immune cells involved in the immunotherapy response, providing insight into the mechanism of action, temporal progression of tumour growth and individual potency of therapies. To evaluate…

Purpose: Intra-operative measurement of tissue oxygen saturation (StO2) is important in the detection of ischemia, monitoring perfusion and identifying disease. Hyperspectral imaging (HSI) measures the optical reflectance spectrum of the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Qingbiao Li , Jianyu Lin , Neil T. Clancy , Daniel S. Elson

Purpose: Investigation of the feasibility of the R2* mapping techniques by using latest theoretical models corrected for confounding factors and optimized for signal to noise ratio. Theory and Methods: The improvement of the performance of…

Medical Physics · Physics 2016-08-10 G. Siracusano , A. La Corte , C. Milazzo , G. P. Anastasi , G. Finocchio , M. Gaeta

fMRI (functional Magnetic Resonance Imaging) visual decoding involves decoding the original image from brain signals elicited by visual stimuli. This often relies on manually labeled ROIs (Regions of Interest) to select brain voxels.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Ziyu Wang , Tengyu Pan , Zhenyu Li , Ji Wu , Xiuxing Li , Jianyong Wang

Multimodal survival methods combining gigapixel histology whole-slide images (WSIs) and transcriptomic profiles are particularly promising for patient prognostication and stratification. Current approaches involve tokenizing the WSIs into…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Andrew H. Song , Richard J. Chen , Guillaume Jaume , Anurag J. Vaidya , Alexander S. Baras , Faisal Mahmood

Body Mass Index (BMI) is a widely accessible but imprecise proxy of cardiometabolic health. While assessing true body composition is superior, gold-standard methods like Dual-Energy X-ray Absorptiometry (DXA) are not scalable. We address…

Surface Plasmon Resonance (SPR) is an important bio-sensing technique for real-time label-free detection. However, it is pivotal to optimize various parameters of the sensor configuration for efficient and highly sensitive sensing. To that…

Biological Physics · Physics 2020-07-20 Ehsan Kabir , Syed Mohammad Ashab Uddin , Sayeed Shafayet Chowdhury

Purpose: T2* quantification from gradient echo magnetic resonance imaging is particularly affected by subject motion due to the high sensitivity to magnetic field inhomogeneities, which are influenced by motion and might cause signal loss.…

Image and Video Processing · Electrical Eng. & Systems 2025-09-11 Hannah Eichhorn , Veronika Spieker , Kerstin Hammernik , Elisa Saks , Lina Felsner , Kilian Weiss , Christine Preibisch , Julia A. Schnabel

Real-time monitoring of dynamic biological processes in the body is critical to understanding disease progression and treatment response. This data, for instance, can help address the lower than 50% response rates to cancer immunotherapy.…

Purpose: Designing a new T2 preparation (T2-Prep) module in order to simultaneously provide robust fat suppression and efficient T2 preparation without requiring an additional fat suppression module for T2-weighted imaging at 3T. Methods:…

Medical Physics · Physics 2022-11-04 Lionel Arn , Ruud B van Heeswijk , Matthias Stuber , Jessica AM Bastiaansen

A model-based reconstruction technique for accelerated T2 mapping with improved accuracy is proposed using undersampled Cartesian spin-echo MRI data. The technique employs an advanced signal model for T2 relaxation that accounts for…

Medical Physics · Physics 2015-03-03 Tilman J. Sumpf , Andreas Petrovic , Martin Uecker , Florian Knoll , Jens Frahm

Current acoustic radiation force (ARF) based methods for quantifying tissue elasticity primarily rely on shear wave propagation. However, their spatial resolution is limited by the need for spatial averaging, and their accuracy is affected…

Medical Physics · Physics 2025-11-24 Keita Yokoyama , Murad Hossain , Sabiq Muhtadi , Caterina Gallippi

This study explores the correlation between iron mass on cell surfaces and the resultant magnetic field. Human colorectal cancer cells (HT29 line) were labeled with varying concentrations of SPIONs and imaged via a NV center widefield…

Fatty acid can potentially serve as biomarker for evaluating metabolic disorder and inflammation condition, and quantifying the double bonds is the key for revealing fatty acid information. This study presents an assessment of a deep…

Significance: Pulsatile blood Oxygen Saturation (SpO2 ) via pulse oximetry is a valuable clinical metric for assessing oxygen delivery. Individual anatomical features, including skin tone, may affect current optical pulse oximetry methods.…

Medical Physics · Physics 2024-10-23 Giles Blaney , Jodee Frias , Fatemeh Tavakoli , Angelo Sassaroli , Sergio Fantini

Integrating whole-slide images (WSIs) and bulk transcriptomics for predicting patient survival can improve our understanding of patient prognosis. However, this multimodal task is particularly challenging due to the different nature of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Guillaume Jaume , Anurag Vaidya , Richard Chen , Drew Williamson , Paul Liang , Faisal Mahmood

Intelligent reflecting surface (IRS) is an emerging technology that is able to reconfigure the wireless channel via tunable passive signal reflection and thereby enhance the spectral and energy efficiency of wireless networks…

Information Theory · Computer Science 2022-10-17 Ming-Min Zhao , An Liu , Yubo Wan , Rui Zhang

Quantitative cardiac magnetic resonance T1 and T2 mapping enable myocardial tissue characterisation but the lengthy scan times restrict their widespread clinical application. We propose a deep learning method that incorporates a time…

Signal Processing · Electrical Eng. & Systems 2023-10-02 Fanwen Wang , Michael Tanzer , Mengyun Qiao , Wenjia Bai , Daniel Rueckert , Guang Yang , Sonia Nielles-Vallespin

An end-to-end image analysis pipeline is presented for the abdominal MRI protocol used in the UK Biobank on the first 38,971 participants. Emphasis is on the processing steps necessary to ensure a high-level of data quality and consistency…

Image and Video Processing · Electrical Eng. & Systems 2020-07-17 Nicolas Basty , Yi Liu , Madeleine Cule , E. Louise Thomas , Jimmy D. Bell , Brandon Whitcher
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