Results 41 to 50 of about 3,039 (204)

Design of a realistic PET-CT-MRI phantom [PDF]

, 2011
The validation of the PET image quality of new PET-MRI systems should be done against the image quality of currently available PET-CT systems. This includes the validation of new attenuation correction methods.
Espana Palomares, Samuel, Fierens, Yves, Keereman, Vincent, Mollet, Pieter, Vandenberghe, Stefaan   +4 more
core   +1 more source

Ultrashort time-to-echo T2* and T2* relaxometry for evaluation of lumbar disc degeneration: a comparative study

BMC Musculoskeletal Disorders, 2022
Background To compare potential of ultrashort time-to-echo (UTE) T2* mapping and T2* values from T2*-weighted imaging for assessing lumbar intervertebral disc degeneration (IVDD),with Pfirrmann grading as a reference standard.
Li-Lan Wu, Li-Heng Liu, Sheng-Xiang Rao, Pu-Yeh Wu, Jian-Jun Zhou   +4 more
doaj   +1 more source

Ligamentization of the reconstructed ACL differs between the intraarticular and intraosseous regions: A quantitative assessment using UTE-T2* mapping.

PLoS ONE, 2022
BackgroundThe purpose of this study was to prospectively observe the trends of ultrashort echo time (UTE)-T2* values for the intraarticular and intraosseous regions of reconstructed anterior cruciate ligaments from 6 to 12 months after anterior cruciate ...
Rikuto Yoshimizu, Junsuke Nakase, Miho Okuda, Kazuki Asai, Mitsuhiro Kimura, Tomoyuki Kanayama, Yusuke Yanatori, Hiroyuki Tsuchiya   +7 more
doaj   +1 more source

A computational measurement of cartilaginous endplate structure using ultrashort time-to-echo MRI scanning [PDF]

, 2017
postprin
Hu, Y, Huang, Y, Jin, R, Luk, KDK
core   +1 more source

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 to enable accurate slice selection and short acquisition times. Slice selection in UTE requires fast,
Fabich, Hilary T, Benning, Martin, Sederman, Andrew J, Holland, Daniel J   +3 more
openaire   +2 more sources

Detection of different kidney stone types: an ex vivo comparison of ultrashort echo time MRI to reference standard CT [PDF]

, 2016
BACKGROUND AND PURPOSE: With the development of ultrashort echo time (UTE) sequences, it may now be possible to detect kidney stones by using magnetic resonance imaging (MRI).
Bridges, Mellena D., Cernigliaro, Joseph G., Giesbrandt, Jamie G., Haley, William E., Ibrahim, El-Sayed H., Pooley, Robert A., Williams, James C.   +6 more
core   +1 more source

Ultrashort echo time for improved positive-contrast manganese-enhanced MRI of cancer. [PDF]

PLoS ONE, 2013
OBJECTIVE: Manganese (Mn) is a positive magnetic resonance imaging (MRI) contrast agent that has been used to obtain physiological, biochemical, and molecular biological information.
Joris Tchouala Nofiele, Hai-Ling Margaret Cheng   +1 more
doaj   +1 more source

Accelerated Quantitative 3D UTE-Cones Imaging Using Compressed Sensing

Sensors, 2022
In this study, the feasibility of accelerated quantitative Ultrashort Echo Time Cones (qUTE-Cones) imaging with compressed sensing (CS) reconstruction is investigated.
Jiyo S. Athertya, Yajun Ma, Amir Masoud Afsahi, Alecio F. Lombardi, Dina Moazamian, Saeed Jerban, Sam Sedaghat, Hyungseok Jang   +7 more
doaj   +1 more source

Knee menisci segmentation and relaxometry of 3D ultrashort echo time cones MR imaging using attention U-Net with transfer learning. [PDF]

, 2020
PurposeTo develop a deep learning-based method for knee menisci segmentation in 3D ultrashort echo time (UTE) cones MR imaging, and to automatically determine MR relaxation times, namely the T1, T1ρ , and T2∗ parameters, which can be used to assess knee ...
Byra, Michal, Chang, Eric Y, Du, Jiang, Jang, Hyungseok, Ma, Ya-Jun, Shah, Sameer, Wu, Mei, Zhang, Xiaodong   +7 more
core   +2 more sources

Characterizing Microstructural and Mechanical Properties of Dancer Achilles Tendon Using Ultrashort Echo Time MRI and Shear Wave Elastography Ultrasound. [PDF]

J Orthop Res
ABSTRACT Previous observations of multi‐echo ultrashort echo time (UTE) magnetic resonance imaging (MRI) decay data from the Achilles tendon (AT) report an off‐resonance non‐water signal associated with non‐collagenous extracellular matrix (ECM) constituents.
Horner AM, Gonzalez FM, Gleason CN, Blackmon A, Faulkner E, Dyckman D, Umpierrez MB, Wong PK, Sharghi VK, Su P, Reiter DA.   +10 more
europepmc   +2 more sources