Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Hyungseok Jang"'
Autor:
Soo Hyun Shin, Dina Moazamian, Arya Suprana, Chun Zeng, Jiyo S. Athertya, Michael Carl, Yajun Ma, Hyungseok Jang, Jiang Du
Publikováno v:
NeuroImage, Vol 296, Iss , Pp 120666- (2024)
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 r
Externí odkaz:
https://doaj.org/article/fdce5508bf7543b5a89a3766eb3d41ae
Autor:
Fabian Schmitz, Hendrik Voigtländer, Hyungseok Jang, Heinz-Peter Schlemmer, Hans-Ulrich Kauczor, Sam Sedaghat
Publikováno v:
Diagnostics, Vol 14, Iss 19, p 2220 (2024)
Objectives: This study aims to investigate MRI features predicting the grade of STS malignancy using conventional image reading and radiomics. Methods: Pretherapeutic imaging data regarding size, tissue heterogeneity, peritumoral changes, necrosis, h
Externí odkaz:
https://doaj.org/article/b0690b72a26845ff8130b84d72c4bc77
Autor:
Bhavsimran Singh Malhi, Dina Moazamian, Soo Hyun Shin, Jiyo S. Athertya, Livia Silva, Saeed Jerban, Hyungseok Jang, Eric Chang, Yajun Ma, Michael Carl, Jiang Du
Publikováno v:
Bioengineering, Vol 11, Iss 1, p 66 (2024)
Introduction: The objective of this study was to assess the bi-exponential relaxation times and fractions of the short and long components of the human patellar tendon ex vivo using three-dimensional ultrashort echo time T1ρ (3D UTE-T1ρ) imaging. M
Externí odkaz:
https://doaj.org/article/15530c350524494582d7daff4b21dbe0
Autor:
Saeed Jerban, Yajun Ma, Dina Moazamian, Jiyo Athertya, Sophia Dwek, Hyungseok Jang, Gina Woods, Christine B. Chung, Eric Y. Chang, Jiang Du
Publikováno v:
Frontiers in Endocrinology, Vol 14 (2023)
IntroductionUltrashort echo time (UTE) MRI enables quantitative assessment of cortical bone. The signal ratio in dual-echo UTE imaging, known as porosity index (PI), as well as the signal ratio between UTE and inversion recovery UTE (IR-UTE) imaging,
Externí odkaz:
https://doaj.org/article/38e10bf6b4a9456281fab865d1ad50ed
Autor:
Sam Sedaghat, Hyungseok Jang, Jiyo S. Athertya, Martin Groezinger, Jody Corey-Bloom, Jiang Du
Publikováno v:
Frontiers in Neuroscience, Vol 17 (2023)
IntroductionAlthough many lesion-based MRI biomarkers in multiple sclerosis (MS) patients were investigated, none of the previous studies dealt with the signal intensity variations (SIVs) of MS lesions. In this study, the SIVs of MS lesions on direct
Externí odkaz:
https://doaj.org/article/b2b9abe6c31a46a29a6bc306fff78575
Autor:
Hyungseok Jang, Sam Sedaghat, Jiyo S. Athertya, Dina Moazamian, Michael Carl, Yajun Ma, Xing Lu, Alicia Ji, Eric Y. Chang, Jiang Du
Publikováno v:
Frontiers in Neuroscience, Vol 16 (2022)
PurposeQuantitative susceptibility mapping (QSM) has surfaced as a promising non-invasive quantitative biomarker that provides information about tissue composition and microenvironment. Recently, ultrashort echo time quantitative susceptibility mappi
Externí odkaz:
https://doaj.org/article/85f24e6542dd47d9b7aa24d1f07242e1
Autor:
Amir Masoud Afsahi, Sam Sedaghat, Dina Moazamian, Ghazaleh Afsahi, Jiyo S. Athertya, Hyungseok Jang, Ya-Jun Ma
Publikováno v:
Frontiers in Endocrinology, Vol 13 (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 µ
Externí odkaz:
https://doaj.org/article/a1b066fbce574614b56bac5c6cda287c
Autor:
Saeed Jerban, Yajun Ma, Qingbo Tang, Eddie Fu, Nikolaus Szeverenyi, Hyungseok Jang, Christine B. Chung, Jiang Du, Eric Y. Chang
Publikováno v:
Diagnostics, Vol 13, Iss 5, p 876 (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
Externí odkaz:
https://doaj.org/article/5b1c349374974987a755cae8a6697cfc
Publikováno v:
Frontiers in Endocrinology, Vol 12 (2021)
PurposeThe osteochondral junction (OCJ) region—commonly defined to include the deep radial uncalcified cartilage, tidemark, calcified cartilage, and subchondral bone plate—functions to absorb mechanical stress and is commonly associated with the
Externí odkaz:
https://doaj.org/article/9751789d80334b168b5a5d3e208faadc
Autor:
Jiyo S. Athertya, Yajun Ma, Amir Masoud Afsahi, Alecio F. Lombardi, Dina Moazamian, Saeed Jerban, Sam Sedaghat, Hyungseok Jang
Publikováno v:
Sensors, Vol 22, Iss 19, p 7459 (2022)
In this study, the feasibility of accelerated quantitative Ultrashort Echo Time Cones (qUTE-Cones) imaging with compressed sensing (CS) reconstruction is investigated. qUTE-Cones sequences for variable flip angle-based UTE T1 mapping, UTE adiabatic T
Externí odkaz:
https://doaj.org/article/560bc01d313f47748107f45159a13889