Results 1 to 10 of about 4,993 (209)

Quantitative Ultrashort Echo Time (UTE) Magnetic Resonance Imaging of Bone: An Update [PDF]

Frontiers in Endocrinology, 2020
Bone possesses a highly complex hierarchical structure comprised of mineral (~45% by volume), organic matrix (~35%) and water (~20%). Water exists in bone in two forms: as bound water (BW), which is bound to bone mineral and organic matrix, or as pore ...
Ya-Jun Ma, Saeed Jerban, Hyungseok Jang, Douglas Chang, Eric Y. Chang, Eric Y. Chang, Jiang Du   +6 more
doaj   +8 more sources

Tendon evaluation with ultrashort Echo Time (UTE) MRI: A Systematic Review. [PDF]

Front Musculoskelet Disord
Tendon disease ranks among the leading reasons patients consult their general practitioners, comprising approximately one-third of musculoskeletal appointments. Magnetic resonance imaging (MRI) is regarded as the gold standard for assessing tendons.
Malhi BS, Jang H, Malhi MS, Berry DB, Jerban S.   +4 more
europepmc   +4 more sources

Theoretical analysis and optimization of ultrashort echo time (UTE) imaging contrast with off-resonance saturation. [PDF]

Magn Reson Imaging, 2018
PURPOSE Off-resonance saturation (ORS) is a tool which can be used in ultrashort echo time (UTE) magnetic resonance imaging to selectively reduce short T2 signals.
Carl M, Ma Y, Du J.
europepmc   +8 more sources

Ultrashort echo time (UTE) MRI for the assessment of caries lesions. [PDF]

Dentomaxillofac Radiol, 2013
Objective: Direct in vivo MRI of dental hard tissues by applying ultrashort echo time (UTE) MRI techniques has recently been reported. The objective of the presented study is to clinically evaluate the applicability of UTE MRI for the identification of ...
Bracher AK, Hofmann C, Bornstedt A, Hell E, Janke F, Ulrici J, Haller B, Geibel MA, Rasche V.   +8 more
europepmc   +5 more sources

Correlations between elastic modulus and ultrashort echo time (UTE) adiabatic T1ρ relaxation time (UTE-Adiab-T1ρ) in Achilles tendons and entheses. [PDF]

J Biomech, 2023
Patients with psoriatic arthritis commonly have abnormalities of their entheses, which are the connections between tendons and bone. There are shortcomings with the use of conventional magnetic resonance imaging (MRI) sequences for the evaluation of ...
Jerban S, Afsahi AM, Ma Y, Moazamian D, Statum S, Lombardi AF, Kakos L, Dorthe E, Dlima D, Du J, Chung CB, Chang EY.   +11 more
europepmc   +6 more sources

Ultrashort Echo Time (UTE) MRI porosity index (PI) and suppression ratio (SR) correlate with the cortical bone microstructural and mechanical properties: Ex vivo study. [PDF]

Bone, 2023
Ultrashort echo time (UTE) MRI can image and consequently enable quantitative assessment of cortical bone. UTE-MRI-based evaluation of bone is largely underutilized due to the high cost and time demands of MRI in general.
Jerban S, Ma Y, Alenezi S, Moazamian D, Athertya J, Jang H, Dorthe E, Dlima D, Woods G, Chung CB, Chang EY, Du J.   +11 more
europepmc   +3 more sources

Estimation of Trabecular Bone Volume with Dual-Echo Ultrashort Echo Time (UTE) Magnetic Resonance Imaging (MRI) Significantly Correlates with High-Resolution Computed Tomography (CT) [PDF]

Journal of Imaging
Trabecular bone architecture has important implications for the mechanical strength of bone. Trabecular elements appear as signal void when imaged utilizing conventional magnetic resonance imaging (MRI) sequences.
Karen Y. Cheng, Dina Moazamian, Behnam Namiranian, Hamidreza Shaterian Mohammadi, Salem Alenezi, Christine B. Chung, Saeed Jerban   +6 more
doaj   +3 more sources

Yet more evidence that non-aqueous myelin lipids can be directly imaged with ultrashort echo time (UTE) MRI on a clinical 3T scanner: a lyophilized red blood cell membrane lipid study [PDF]

NeuroImage
Direct imaging of semi-solid lipids, such as myelin, is of great interest as a noninvasive biomarker of neurodegenerative diseases. Yet, the short T2 relaxation times of semi-solid lipid protons hamper direct detection through conventional magnetic ...
Soo Hyun Shin, Dina Moazamian, Arya Suprana, Chun Zeng, Jiyo S. Athertya, Michael Carl, Yajun Ma, Hyungseok Jang, Jiang Du   +8 more
doaj   +3 more sources

Assessment of ultrashort echo time (UTE) T₂* mapping at 3T for the whole knee: repeatability, the effects of fat suppression, and knee position. [PDF]

Quant Imaging Med Surg, 2023
Background Knee tissues such as tendon, ligament and meniscus have short T2* relaxation times and tend to show little to no signal in conventional magnetic resonance acquisitions. An ultrashort echo time (UTE) technique offers a unique tool to probe fast-
Wu Z, Zaylor W, Sommer S, Xie D, Zhong X, Liu K, Kim J, Beveridge JE, Zhang X, Li X.   +9 more
europepmc   +2 more sources

Correlation between the elastic modulus of anterior cruciate ligament (ACL) and quantitative ultrashort echo time (UTE) magnetic resonance imaging. [PDF]

J Orthop Res, 2022
Conventional magnetic resonance imaging (MRI) often acquires no signal in anterior cruciate ligament (ACL) due to the short apparent transverse relaxation time of ACL.
Jerban S, Hananouchi T, Ma Y, Namiranian B, Dorthe EW, Wong JH, Shojaeiadib N, Wu M, Du J, D'Lima D, Chung CB, Chang EY.   +11 more
europepmc   +2 more sources