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Positron Emission Tomography and Magnetic Resonance Imaging (PET-MRI) systems can obtain functional and anatomical scans. PET suffers from a low signal-to-noise ratio. Meanwhile, the k-space data acquisition process in MRI is…

Image and Video Processing · Electrical Eng. & Systems 2024-07-12 Taofeng Xie , Zhuo-Xu Cui , Chen Luo , Huayu Wang , Congcong Liu , Yuanzhi Zhang , Xuemei Wang , Yanjie Zhu , Guoqing Chen , Dong Liang , Qiyu Jin , Yihang Zhou , Haifeng Wang

Purpose: Oscillating gradient spin-echo (OGSE) diffusion MRI provides information about the microstructure of biological tissues via the frequency dependence of the apparent diffusion coefficient (ADC). ADC dependence on OGSE frequency has…

Medical Physics · Physics 2019-09-26 Aidin Arbabi , Jason Kai , Ali R Khan , Corey A Baron

Computed Tomography (CT) scans are the standard-of-care for the visualization and diagnosis of many clinical ailments, and are needed for the treatment planning of external beam radiotherapy. Unfortunately, the availability of CT scanners…

Image and Video Processing · Electrical Eng. & Systems 2024-08-28 Yiran Sun , Hana Baroudi , Tucker Netherton , Laurence Court , Osama Mawlawi , Ashok Veeraraghavan , Guha Balakrishnan

Accurate placental segmentation is essential for quantitative analysis of the placenta. However, this task is particularly challenging in T2*-weighted placental imaging due to: (1) weak and inconsistent boundary contrast across individual…

Image and Video Processing · Electrical Eng. & Systems 2025-08-05 Xinliu Zhong , Ruiying Liu , Emily S. Nichols , Xuzhe Zhang , Andrew F. Laine , Emma G. Duerden , Yun Wang

Diffusion Tensor Cardiac Magnetic Resonance (DT-CMR) enables us to probe the microstructural arrangement of cardiomyocytes within the myocardium in vivo and non-invasively, which no other imaging modality allows. This innovative technology…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Michael Tanzer , Pedro Ferreira , Andrew Scott , Zohya Khalique , Maria Dwornik , Dudley Pennell , Guang Yang , Daniel Rueckert , Sonia Nielles-Vallespin

We propose a multimodal latent diffusion model that jointly synthesizes volumetric magnetic resonance imaging (MRI) and tabular clinical data within a shared latent space via cross-attention. This approach enables coherent joint…

Image and Video Processing · Electrical Eng. & Systems 2026-05-11 Daniel Mensing , Jan Kapar , Jochen G. Hirsch , Matthias Günther , Horst Hahn , Marvin N. Wright

Multi-site structural MRI is increasingly used in neuroimaging studies to diversify subject cohorts. However, combining MR images acquired from various sites/centers may introduce site-related non-biological variations. Retrospective image…

Image and Video Processing · Electrical Eng. & Systems 2024-08-20 Mengqi Wu , Minhui Yu , Shuaiming Jing , Pew-Thian Yap , Zhengwu Zhang , Mingxia Liu

Objective: The purpose of this manuscript is to accelerate cardiac diffusion tensor imaging (CDTI) by integrating low-rankness and compressed sensing. Methods: Diffusion-weighted images exhibit both transform sparsity and low-rankness.…

Signal Processing · Electrical Eng. & Systems 2018-01-12 Sen Ma , Christopher T. Nguyen , Anthony G. Christodoulou , Daniel Luthringer , Jon Kobashigawa , Sang-Eun Lee , Hyuk-Jae Chang , Debiao Li

The quality of fetal MRI is significantly affected by unpredictable and substantial fetal motion, leading to the introduction of artifacts even when fast acquisition sequences are employed. The development of 3D real-time fetal pose…

Image and Video Processing · Electrical Eng. & Systems 2024-04-02 Molin Zhang , Polina Golland , Patricia Ellen Grant , Elfar Adalsteinsson

Data from a multi-parametric MRI study of patients with possible early-stage prostate cancer was assessed with a view to creating an efficient clinical protocol. Based on a correlation analysis suggesting that diffusion-weighted imaging…

Medical Physics · Physics 2017-11-28 Ioannis Papadopoulos , Jonathan Phillips , Rhodri Evans , Neil Fenn , Sophie Schermer

Dynamic contrast-enhanced (DCE) MRI is essential for breast cancer diagnosis and treatment. However, its reliance on contrast agents introduces safety concerns, contraindications, increased cost, and workflow complexity. To this end, we…

Image and Video Processing · Electrical Eng. & Systems 2025-09-16 Sebastian Ibarra , Javier del Riego , Alessandro Catanese , Julian Cuba , Julian Cardona , Nataly Leon , Jonathan Infante , Karim Lekadir , Oliver Diaz , Richard Osuala

The text to medical image (T2MedI) with latent diffusion model has great potential to alleviate the scarcity of medical imaging data and explore the underlying appearance distribution of lesions in a specific patient status description.…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Xu Han , Fangfang Fan , Jingzhao Rong , Zhen Li , Georges El Fakhri , Qingyu Chen , Xiaofeng Liu

Placenta Accreta Spectrum (PAS) is a serious obstetric condition that can be challenging to diagnose with Magnetic Resonance Imaging (MRI) due to variability in radiologists' interpretations. To overcome this challenge, a hybrid 3D deep…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Sumaiya Ali , Areej Alhothali , Ohoud Alzamzami , Sameera Albasri , Ahmed Abduljabbar , Muhammad Alwazzan

Placenta Accreta Spectrum (PAS) is a life-threatening obstetric complication involving abnormal placental invasion into the uterine wall. Early and accurate prenatal diagnosis is essential to reduce maternal and neonatal risks. This study…

Image and Video Processing · Electrical Eng. & Systems 2026-01-06 Sumaiya Ali , Areej Alhothali , Sameera Albasri , Ohoud Alzamzami , Ahmed Abduljabbar , Muhammad Alwazzan

Diffusion Magnetic Resonance Imaging (dMRI) is an imaging technique with exquisite sensitivity to the microstructural properties of heterogeneous media. The conventionally adopted acquisition schemes involving single pulsed field gradients…

Biological Physics · Physics 2023-01-04 Deneb Boito , Cem Yolcu , Evren Özarslan

ECG-gated cine imaging in breath-hold enables high-quality diagnostics in most patients, arrhythmia and inability to hold breath, however, can severely corrupt outcomes. Real-time cardiac MRI in free-breathing leverages robust and faster…

Diffusion magnetic resonance imaging is a noninvasive imaging technique that can indirectly infer the microstructure of tissues and provide metrics which are subject to normal variability across subjects. Potentially abnormal values or…

Image and Video Processing · Electrical Eng. & Systems 2020-08-28 Samuel St-Jean , Max A. Viergever , Alexander Leemans

Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) is a medical imaging technique that plays a crucial role in the detailed visualization and identification of tissue perfusion in abnormal lesions and radiological suggestions…

Image and Video Processing · Electrical Eng. & Systems 2025-02-06 Divya Bharti , Sriprabha Ramanarayanan , Sadhana S , Kishore Kumar M , Keerthi Ram , Harsh Agarwal , Ramesh Venkatesan , Mohanasankar Sivaprakasam

We propose a multi-patient inverse modeling framework for identifying effective calcium and citrate diffusion coefficients in hollow-fiber hemodialysis devices. The approach relies on a coupled forward model combining axisymmetric fluid…

Numerical Analysis · Mathematics 2026-03-03 Geoffrey Lacour , Nicolae Cîndea , Julien Aniort

In Multiple Sclerosis (MS), there is a large discrepancy between the clinical observations and how the pathology is exhibited on brain images, this is known as the clinical-radiological paradox (CRP). One of the hypotheses is that the…

Image and Video Processing · Electrical Eng. & Systems 2023-07-28 Haykel Snoussi , Emmanuel Caruyer , Benoit Combes , Olivier Commowick , Elise Bannier , Anne Kerbrat , Julien Cohen-Adad , Christian Barillot