Tension-Dependent Variability and Repeatability of Achilles Tendon UTE-T2* Mapping Using Mono- and Bi-Exponential Models [0.03%]
基于单指数和双指数模型的跟腱UTE-T2 *图谱的张力依赖变异性及重复性测量
Ananya Goyal,Marco Barbieri,Valentina Mazzoli et al.
Ananya Goyal et al.
Quantitative MRI using ultrashort echo time (UTE)-T2* mapping is sensitive to collagen-bound water and tendon microstructure, enabling noninvasive assessment of tendon integrity and laxity. However, the extent to which UTE-T2* measures refl...
Optimal Control-Based Generic Framework for Radiofrequency Pulse Design in MRI [0.03%]
基于最优控制的MRI射频脉冲通用设计框架
Emilio Molina,Hélène Ratiney,Eric Van Reeth
Emilio Molina
This work proposes a general framework for the optimal design of radiofrequency pulses in MRI. Based on optimal control theory, it proposes a Python-based numerical implementation using state-of-the-art nonlinear optimization solver (IPOPT)...
Simultaneous Water-Specific and Fat-Specific T1 and Fat Fraction Mapping of the Abdomen in Free Breathing Conditions With a Radially Encoded MP2RAGE [0.03%]
自由呼吸腹部水和脂肪特异T1及脂肪分数成像的径向编码MP2RAGE方法
Nadège Corbin,François Maingault,Aurélien J Trotier et al.
Nadège Corbin et al.
The purpose of this study is to enable 3D abdominal imaging and quantitative parameter mapping in free breathing conditions and simultaneously provide proton-density fat fraction (PDFF), water-specific and fat-specific T1 maps. A radially e...
Reducing Variability in Deep Gray Matter QSM Using Differential ROI Referencing: A Phantom and In Vivo Evaluation [0.03%]
利用差分ROI参考减少深灰质QSM的可变性：对模型和体内评价
Tae Hyun Hwang,Gawon Lee,Myung Kyun Woo et al.
Tae Hyun Hwang et al.
Quantitative susceptibility mapping (QSM) measures the intrinsic magnetic susceptibility of tissues. Because susceptibility values are inherently relative rather than absolute, referencing to a region of interest (ROI) is commonly employed ...
Data-Driven Characterization of Knee Structures Using Non-Negative Matrix Factorization of 3D Multi-Echo UTE MRI [0.03%]
基于非负矩阵分解的三维回波平面MRI膝关节结构数据驱动表征研究
Céline Smekens,Pieter Van Dyck,Patrick S Fuchs et al.
Céline Smekens et al.
T2* quantification based on multi-echo ultrashort echo time (UTE) MRI has been widely proposed for knee tissue characterization, yet accurate model-based parameter estimation remains challenging due to ill-conditioning of the corresponding ...
Elbow Flexors Muscle Fat Fraction Is a Sensitive and Relevant Outcome Measure in Nonambulant Patients With DMD [0.03%]
DMD非行走患者肘屈肌脂肪分数是一项敏感且相关的结局测量指标
M Michaëls,K J Naarding,M van der Holst et al.
M Michaëls et al.
Duchenne muscular dystrophy (DMD) is an X-linked neuromuscular disease characterized by progressive muscle wasting. Objective and relevant outcome measures are needed for longitudinal follow-up and clinical trials. Quantitative MR muscle pa...
Radiation Effects on Normal Brain in Subjects With Recurrent Glioblastoma by Spectroscopic MRI [0.03%]
磁共振波谱学检查发现胶质母细胞瘤复发患者正常脑组织的放射效应
Abram Abdou,Sulaiman Sheriff,Kelly Rojas et al.
Abram Abdou et al.
Glioblastoma (GBM) is the most common and aggressive primary malignant brain tumor in adults and almost always recurs. In recurrent GBM, conventional MRI has limited ability to detect microscopic tumor infiltration and distinguish progressi...
Luca Cairone,Maria Guidi,Matteo Mancini et al.
Luca Cairone et al.
Over the past 15 years, the number of studies employing functional magnetic resonance spectroscopy (fMRS) has tripled, driven in part by improvements in scanner performance and a growing interest in the investigation of metabolic dynamics a...
Characterization of Inflammation in In Vivo Mouse Myocardium Using Longitudinal Rotating Frame Relaxation Time (T1ρ) and T2 Relaxation Time Maps [0.03%]
基于纵向旋转框架松弛时间(T1ρ)和横向弛豫时间(T2)的心肌炎性表征研究
Elias Ylä-Herttuala,Haja Sherief Nazimutheen Mustafa,Muhammad Arsalan Khan et al.
Elias Ylä-Herttuala et al.
Cardiac magnetic resonance imaging (MRI) is a gold standard to assess functional and anatomical properties of the living heart. Inflammation changes the myocardial tissue and, furthermore, MR relaxation properties. Continuous-wave (CW) long...
Breaking the Limits of Low-Field MRI: Deep Learning Approaches to Image Enhancement [0.03%]
突破低场MRI限制：用于图像增强的深度学习方法
Xuanyu Zhu,Yun Shang,Hsin-Jung Yang et al.
Xuanyu Zhu et al.
Low-field magnetic resonance imaging (LF-MRI) has emerged as a transformative technology, offering portable and cost-effective solutions for medical imaging in resource-limited settings. However, LF-MRI systems face inherent challenges, inc...