Zobrazeno 1 - 10
of 3 184
pro vyhledávání: '"Echo time"'
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 34, Iss 3, Pp 446-455 (2024)
Purpose: To maximize acquisition bandwidth in zero echo time (ZTE) sequences, readout gradients are already switched on during the RF pulse, creating unwanted slice selectivity. The resulting image distortions are amplified especially when the anatom
Externí odkaz:
https://doaj.org/article/57b513b5e9bb49959aa8dfc454a047e3
Autor:
Jonas M. Getzmann, Eva Deininger-Czermak, Savvas Melissanidis, Falko Ensle, Sandeep S. Kaushik, Florian Wiesinger, Cristina Cozzini, Luca M. Sconfienza, Roman Guggenberger
Publikováno v:
Insights into Imaging, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Objectives To generate pseudo-CT (pCT) images of the pelvis from zero echo time (ZTE) MR sequences and compare them to conventional CT. Methods Ninety-one patients were prospectively scanned with CT and MRI including ZTE sequences of the pel
Externí odkaz:
https://doaj.org/article/f2498e48801c4aab847b0ffd32039cf9
Autor:
Takayuki Oishi, MD, PhD, Atsushi Tasaki, MD, PhD, Shota Mashimo, PT, MPH, Michiru Moriya, MD, Daisuke Yamashita, MD, Taiki Nozaki, MD, PhD, Nobuto Kitamura, MD, PhD, Yutaka Inaba, MD, PhD
Publikováno v:
JSES International, Vol 8, Iss 4, Pp 714-718 (2024)
Background: Preoperative computed tomography (CT) evaluation of bone morphometry aids in determining treatment strategies for shoulder instability. The use of zero echo time (ZTE) sequence in magnetic resonance imaging (MRI), a new bone cortex imagin
Externí odkaz:
https://doaj.org/article/21786b583e9b43e6b44d9afa66f7af54
Publikováno v:
Insights into Imaging, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Objectives To explore the feasibility of Ultra-short echo time (UTE) – MRI quantitative imaging in detecting early cartilage degeneration in vivo and underlying pathological and biochemical basis. Methods Twenty volunteers with osteoarthri
Externí odkaz:
https://doaj.org/article/81e7bed62f1648389047505a87697208
Akademický článek
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Autor:
Qiuxi Lin, Cheng Cheng, Yingying Bao, Weiyin Vivian Liu, Lei Zhang, Zhaofeng Cai, Qi Wan, Chongpeng Sun, Xinchun Li, Yu Deng
Publikováno v:
Heliyon, Vol 10, Iss 13, Pp e34098- (2024)
Rationale and objectives: This study aimed to assess the feasibility and image quality of free-breathing 3D isotropic zero echo time (ZTE) whole-lung imaging and explore a clinically appropriate protocol for MR lung imaging. Materials and methods: Th
Externí odkaz:
https://doaj.org/article/bcc13bb2a69d4db6bbc4ad2c57bda81d
Autor:
Saeed Jerban, Victor Barrere, Behnam Namiranian, Yuanshan Wu, Salem Alenezi, Erik Dorthe, Darryl Dlima, Sameer B. Shah, Christine B. Chung, Jiang Du, Michael P. Andre, Eric Y. Chang
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-13 (2024)
Abstract Background We investigated the relationship of two commonly used quantitative ultrasound (QUS) parameters, speed of sound (SoS) and attenuation coefficient (α), with water and macromolecular contents of bovine cortical bone strips as measur
Externí odkaz:
https://doaj.org/article/387b6651eedb413bbccb30a64e0dee30
Autor:
Xiaoyan Yang, Pengxin Yu, Haishuang Sun, Mei Deng, Anqi Liu, Chen Li, Wenyan Meng, Wenxiu Xu, Bingbing Xie, Jing Geng, Yanhong Ren, Rongguo Zhang, Min Liu, Huaping Dai
Publikováno v:
Insights into Imaging, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Objective To assess lung deformation in patients with idiopathic pulmonary fibrosis (IPF) using with elastic registration algorithm applied to three-dimensional ultrashort echo time (3D-UTE) MRI and analyze relationship of lung deformation w
Externí odkaz:
https://doaj.org/article/c9e3420685ad47098bea2d38aeb6d65e
Publikováno v:
Sensors, Vol 24, Iss 17, p 5842 (2024)
Introduction: The disco-vertebral junction (DVJ) of the lumbar spine contains thin structures with short T2 values, including the cartilaginous endplate (CEP) sandwiched between the bony vertebral endplate (VEP) and the nucleus pulposus (NP). We prev
Externí odkaz:
https://doaj.org/article/f70150b033fa4abc90718dd32f1a7a70
Autor:
Yan Sun, Yujie Chen, Xuesheng Li, Yi Liao, Xijian Chen, Yu Song, Xinyue Liang, Yongming Dai, Dapeng Chen, Gang Ning
Publikováno v:
BMC Medical Imaging, Vol 23, Iss 1, Pp 1-9 (2023)
Abstract 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. The objective of this study was
Externí odkaz:
https://doaj.org/article/374e4d4733fd4f739c79722d1cf33235