Results 11 to 20 of about 4,993 (209)

Ultrashort echo time (UTE) magnetic resonance imaging of myelin: technical developments and challenges. [PDF]

Quant Imaging Med Surg, 2020
Myelin is a concentrically laminated membranous structure consisting of alternating protein and lipid layers, and contains approximately 20% protein and 80% lipid (1).
Ma YJ, Jang H, Chang EY, Hiniker A, Head BP, Lee RR, Corey-Bloom J, Bydder GM, Du J.   +8 more
europepmc   +5 more sources

Clinical application of ultrashort echo time (UTE) and zero echo time (ZTE) magnetic resonance (MR) imaging in the evaluation of osteoarthritis. [PDF]

Skeletal Radiol, 2023
Novel compositional magnetic resonance (MR) imaging techniques have allowed for both the qualitative and quantitative assessments of tissue changes in osteoarthritis, many of which are difficult to characterize on conventional MR imaging. Ultrashort echo time (UTE) and zero echo time (ZTE) MR imaging have not been broadly implemented clinically but ...
Cheng KY, Moazamian D, Ma Y, Jang H, Jerban S, Du J, Chung CB.   +6 more
europepmc   +6 more sources

Feasibility of quantitative ultrashort echo time (UTE)-based methods for MRI of peripheral nerve. [PDF]

NMR Biomed, 2018
Peripheral nerves are a composite tissue consisting of neurovascular elements packaged within a well‐organized extracellular matrix. Their composition, size, and anatomy render nerves a challenging medical imaging target. In contrast to morphological MRI,
Fan SJ, Wong J, Cheng X, Ma YJ, Chang EY, Du J, Shah SB.   +6 more
europepmc   +7 more sources

Ultrashort echo time (UTE) imaging using gradient pre-equalization and compressed sensing

Journal of Magnetic Resonance, 2014
Ultrashort echo time (UTE) imaging is a well-known technique used in medical MRI, however, the implementation of the sequence remains non-trivial. This paper introduces UTE for non-medical applications and outlines a method for the implementation of UTE ...
Martin Benning, Andrew J Sederman, Daniel J Holland   +2 more
exaly   +4 more sources

Robust Assessment of Macromolecular Fraction (MMF) in Muscle with Differing Fat Fraction Using Ultrashort Echo Time (UTE) Magnetization Transfer Modeling with Measured T1. [PDF]

Diagnostics (Basel), 2023
Magnetic resonance imaging (MRI) is widely regarded as the most comprehensive imaging modality to assess skeletal muscle quality and quantity. Magnetization transfer (MT) imaging can be used to estimate the fraction of water and macromolecular proton ...
Jerban S, Ma Y, Tang Q, Fu E, Szeverenyi N, Jang H, Chung CB, Du J, Chang EY.   +8 more
europepmc   +2 more sources

Lower Macromolecular Content in Tendons of Female Patients with Osteoporosis versus Patients with Osteopenia Detected by Ultrashort Echo Time (UTE) MRI. [PDF]

Diagnostics (Basel), 2022
Tendons and bones comprise a special interacting unit where mechanical, biochemical, and metabolic interplays are continuously in effect. Bone loss in osteoporosis (OPo) and its earlier stage disease, osteopenia (OPe), may be coupled with a reduction in ...
Jerban S, Ma Y, Afsahi AM, Lombardi A, Wei Z, Shen M, Wu M, Le N, Chang DG, Chung CB, Du J, Chang EY.   +11 more
europepmc   +2 more sources

Comprehensive assessment of in vivo lumbar spine intervertebral discs using a 3D adiabatic T_1ρ prepared ultrashort echo time (UTE-Adiab-T_1ρ) pulse sequence. [PDF]

Quant Imaging Med Surg, 2022
Background T1ρ has been extensively reported as a sensitive biomarker of biochemical changes in the nucleus pulposus (NP) and annulus fibrosis of intervertebral discs (IVDs).
Wei Z, Lombardi AF, Lee RR, Wallace M, Masuda K, Chang EY, Du J, Bydder GM, Yang W, Ma YJ.   +9 more
europepmc   +2 more sources

Assessing cortical bone mechanical properties using collagen proton fraction from ultrashort echo time magnetization transfer (UTE-MT) MRI modeling [PDF]

Bone Reports, 2019
Cortical bone shows as a signal void when using conventional clinical magnetic resonance imaging (MRI). Ultrashort echo time MRI (UTE-MRI) can acquire high signal from cortical bone, thus enabling quantitative assessments.
Saeed Jerban, Yajun Ma, Erik W. Dorthe, Lena Kakos, Nicole Le, Salem Alenezi, Robert L. Sah, Eric Y. Chang, Darryl D'Lima, Jiang Du   +9 more
doaj   +4 more sources

Assessment of mechanical properties of articular cartilage with quantitative three-dimensional ultrashort echo time (UTE) cones magnetic resonance imaging. [PDF]

J Biomech, 2020
Conventional magnetic resonance imaging (MRI) is not capable of detecting signal from the deep cartilage due to its short transverse relaxation time (T2).
Namiranian B, Jerban S, Ma Y, Dorthe EW, Masoud-Afsahi A, Wong J, Wei Z, Chen Y, D'Lima D, Chang EY, Du J.   +10 more
europepmc   +2 more sources

Correlations of cortical bone microstructural and mechanical properties with water proton fractions obtained from ultrashort echo time (UTE) MRI tricomponent T2* model. [PDF]

NMR Biomed, 2020
Mechanical and microstructural evaluations of cortical bone using ultrashort echo time magnetic resonance imaging (UTE‐MRI) have been performed increasingly in recent years. UTE‐MRI acquires considerable signal from cortical bone and enables quantitative
Jerban S, Lu X, Dorthe EW, Alenezi S, Ma Y, Kakos L, Jang H, Sah RL, Chang EY, D'Lima D, Du J.   +10 more
europepmc   +2 more sources