Results 11 to 20 of about 6,676 (242)

Articular Cartilage Assessment Using Ultrashort Echo Time MRI: A Review

Frontiers in Endocrinology, 2022
Articular cartilage is a major component of the human knee joint which may be affected by a variety of degenerative mechanisms associated with joint pathologies and/or the aging process. Ultrashort echo time (UTE) sequences with a TE less than 100 µs are
Amir Masoud Afsahi, Amir Masoud Afsahi, Sam Sedaghat, Dina Moazamian, Dina Moazamian, Ghazaleh Afsahi, Jiyo S. Athertya, Hyungseok Jang, Ya-Jun Ma   +8 more
doaj   +5 more sources

3D inversion recovery ultrashort echo time MRI can detect demyelination in cuprizone-treated mice [PDF]

Frontiers in Neuroimaging
PurposeTo test the ability of inversion-recovery ultrashort echo time (IR-UTE) MRI to directly detect demyelination in mice using a standard cuprizone mouse model.MethodsNon-aqueous myelin protons have ultrashort T2s and are “invisible” with conventional
Adam C. Searleman, Yajun Ma, Srihari Sampath, Srinath Sampath, Robert Bussell, Eric Y. Chang, Eric Y. Chang, Lisa Deaton, Andrew M. Schumacher, Jiang Du, Jiang Du, Jiang Du   +11 more
doaj   +2 more sources

Three-dimensional ultrashort echo time magnetic resonance imaging in pediatric patients with pneumonia: a comparative study [PDF]

BMC Medical Imaging, 2023
Background UTE has been used to depict lung parenchyma. However, the insufficient discussion of its performance in pediatric pneumonia compared with conventional sequences is a gap in the existing literature.
Yan Sun, Yujie Chen, Xuesheng Li, Yi Liao, Xijian Chen, Yu Song, Xinyue Liang, Yongming Dai, Dapeng Chen, Gang Ning   +9 more
doaj   +2 more sources

Temporal changes in native and late gadolinium enhanced ultrashort echo time magnetic resonance imaging during gynecologic cancer radiation therapy [PDF]

Physics and Imaging in Radiation Oncology
Background and purpose: Radiotherapy (RT) response in gynecologic cancers varies widely and is influenced by several factors. We evaluated whether fibrosis detected with inversion-recovery ultrashort-echo-time (IR-UTE) MRI (magnetic-resonance-imaging ...
Khadija Sheikh, Bruce L. Daniel, Michael Roumeliotis, Junghoon Lee, Thomas Benkert, Himanshu Bhat, Pan Su, Ravi T. Seethamraju, Daniel Y. Song, Akila N. Viswanathan, Ehud J. Schmidt   +10 more
doaj   +2 more sources

Brain short T2 component imaging using double adiabatic inversion recovery prepared ultrashort Echo time (DIR-UTE) sequence [PDF]

NeuroImage
Short T2 components in the brain are uniquely associated with myelin structure, but direct MR imaging is challenging due to their relatively short T2 values and low proton density compared to long T2 water.
Jiyo S. Athertya, Mahyar Daskareh, Soo Hyun Shin, Jiaji Wang, James Lo, Yajun Ma   +5 more
doaj   +2 more sources

Ultrashort Echo Time Magnetic Resonance Morphology of Discovertebral Junction in Chronic Low Back Pain Subjects [PDF]

Tomography
Background: Chronic low back pain (LBP) has been associated with intervertebral disc (IVD) degeneration, but its association with abnormal morphology at the discovertebral junction (DVJ) is unclear.
Palanan Siriwananrangsun, Tim Finkenstaedt, Karen C. Chen, Won C. Bae   +3 more
doaj   +2 more sources

Outlook on zero/ultrashort echo time techniques in functional MRI. [PDF]

Magn Reson Med
AbstractSince its introduction more than 30 years ago, the blood oxygenation level dependent (BOLD) contrast remains the most widely used method for functional MRI (fMRI) in humans and animal models. The BOLD contrast is typically acquired with echo planar imaging (EPI) to obtain sensitization of the signal during the echo time (TE) to dynamic changes ...
Mangia S, Michaeli S, Gröhn O.
europepmc   +4 more sources

Inversion-recovery ultrashort-echo-time (IR-UTE) MRI-based detection of radiation dose heterogeneity in gynecologic cancer patients treated with HDR brachytherapy [PDF]

Radiation Oncology
Purpose To evaluate the relationship between delivered radiation (RT) and post-RT inversion-recovery ultrashort-echo-time (IR-UTE) MRI signal-intensity (SI) in gynecologic cancer patients treated with high-dose-rate (HDR) brachytherapy (BT).
Khadija Sheikh, Bruce L. Daniel, Michael Roumeliotis, Junghoon Lee, William T. Hrinivich, Thomas Benkert, Himanshu Bhat, Ravi T. Seethamraju, Akila N. Viswanathan, Ehud J. Schmidt   +9 more
doaj   +2 more sources

Comparison of diagnostic performance for pulmonary nodule detection between free-breathing spiral ultrashort echo time and free-breathing radial volumetric interpolated breath-hold examination [PDF]

BMC Medical Imaging
Objective This study aims to evaluate the efficacy of two free-breathing magnetic resonance imaging (MRI) sequences—spiral ultrashort echo time (spiral UTE) and radial volumetric interpolated breath-hold examination (radial VIBE).
Yehai Jiang, Doudou Pu, Xuyang Zhang, Zhanli Ren, Nan Yu   +4 more
doaj   +2 more sources

Clinical usability of 3D gradient-echo-based ultrashort echo time imaging: Is it enough to facilitate diagnostic decision in real-world practice? [PDF]

PLoS ONE
BackgroundWith recent advances in magnetic resonance imaging (MRI) technology, the practical role of lung MRI is expanding despite the inherent challenges of the thorax.
So Hyeon Bak, Jinil Park, Seokwon Lee, Jong Hee Kim, Ho Yun Lee, Jang-Yeon Park   +5 more
doaj   +4 more sources