Improved acceleration of phase-contrast flow imaging with magnitude difference regularization

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Curvelet sparse regularization for differential phase-contrast X-ray imaging

Differential phase contrast imaging (DPCI) enables the visualization of soft tissue contrast using X-rays. In this work we introduce a reconstruction framework based on curvelet expansion and sparse regularization for DPCI. We will show that curvelets provide a suitable data representation for DPCI reconstruction that allows preservation of edges as well as an exact analytic representation of t...

متن کامل

How to measure vessel flow with CMR phase contrast imaging

Background Accurately measuring blood flow with CMR is paramount in patients with valvular disease. These flow measurements are important components of a CMR report and provide the referring clinicians with valuable information in which to base further clinical management. This poster presents a guide on how to measure blood flow accurately based on our experience at the Bristol Heart Institute.

متن کامل

Flow Imaging: Cardiac Applications of 3D Cine Phase-Contrast MRI

Global and regional blood flow dynamics are of pivotal importance to cardiac function. Fluid mechanical forces can affect hemolysis and platelet aggregation, as well as myocardial remodeling. In recent years, assessment of blood flow patterns based on time-resolved, three-dimensional, three-directional phase-contrast magnetic resonance imaging (3D cine PC MRI)(1) has become possible and rapidly...

متن کامل

Improved L1-SPIRiT Reconstruction with a Phase Divergence Penalty for 3D Phase-Contrast Flow Measurements

INTRODUCTION Time-resolved three-dimensional phase-contrast MR flow measurements (3D PC-MRI) suffer from long scan times and phase noise. Compressed sensing (CS) has been introduced to acquire undersampled volumetric MRI datasets in significantly reduced scan times. However, standard CS implementations regularize voxel magnitude while ignoring voxel phase. Recently Zhao et al have proposed sepa...

متن کامل

Phase contrast flow imaging in Cardiac Magnetic Resonance (CMR): Imaging turbulent blood flow

Background Accurately measuring blood flow volume is paramount in patients with arterial valve disease. Flow measurements are important components of a CMR report and provide the referring clinicians with valuable information from which to base further clinical management. There are many factors which influence the quality and reliability of flow data including; slice positioning, velocity enco...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Magnetic Resonance Imaging

سال: 2020

ISSN: 0730-725X

DOI: 10.1016/j.mri.2019.12.001