scholarly journals Evaluation of Pulmonary Ventilation in COVID-19 Patients Using Oxygen-enhanced Three-Dimensional Ultrashort Echo Time Magnetic Resonance Imaging: A Preliminary Study

2021 ◽  
Author(s):  
Fang Zhao ◽  
Liyun Zheng ◽  
Fei Shan ◽  
Yongming Dai ◽  
Jie Shen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pulmonary Ventilation ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Preliminary Study ◽  
Echo Time

Three-dimensional ultrashort echo time cones (3D UTE-Cones) magnetic resonance imaging of entheses and tendons

2018 ◽  
Vol 49 ◽  
pp. 4-9 ◽  
Author(s):  
Bimin Chen ◽  
Yinghua Zhao ◽  
Xin Cheng ◽  
Yajun Ma ◽  
Eric Y. Chang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Echo Time

Feasibility of three-dimensional ultrashort echo time magnetic resonance imaging at 1.5 T for the diagnosis of skull fractures

2015 ◽  
Vol 26 (1) ◽  
pp. 138-146 ◽  
Author(s):  
Hao Wu ◽  
Yu-min Zhong ◽  
Quan-min Nie ◽  
Wei-bo Chen ◽  
Lie-mei Guo ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Skull Fractures ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Echo Time

scholarly journals Accelerated Stack-of-Spirals Free-Breathing Three-Dimensional Ultrashort Echo Time Lung Magnetic Resonance Imaging: A Feasibility Study in Patients With Breast Cancer

2021 ◽  
Vol 11 ◽  
Author(s):  
Min Jae Cha ◽  
Hye Shin Ahn ◽  
Hyewon Choi ◽  
Hyun Jeong Park ◽  
Thomas Benkert ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Image Quality ◽  
Parallel Imaging ◽  
Three Dimensional ◽  
Free Breathing ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Echo Time

PurposeTo investigate the clinical feasibility of accelerated free-breathing stack-of-spirals (spiral) three-dimensional (3D) ultrashort echo time (UTE) lung magnetic resonance imaging (MRI) using iterative self‐consistent parallel imaging reconstruction from arbitrary k‐space (SPIRiT) algorithm in patients with breast cancer.MethodsThe institutional review board approved this prospective study and patients’ informed consents were obtained. Between June and August 2018, 29 female patients with breast cancer underwent 3-T MRI including accelerated free-breathing spiral 3D UTE (0.98-mm isotropic spatial resolution; echo time, 0.05 msec) of the lungs and thin-section chest computed tomography (CT). Two radiologists evaluated the image quality and pulmonary nodules on MRI were assessed and compared, CT as a reference.ResultsThe pulmonary vessels and bronchi were visible consistently up to the sub-sub-segmental and sub-segmental branch levels, respectively, on accelerated spiral 3D UTE. The overall image quality was evaluated as good and excellent for 70.7% of accelerated spiral 3D UTE images (reviewer [R]1, 72.4% [21/29]; R2, 69.0% [20/29]) and acceptable for 20.7% (both R1 and R2, 20.7% [6/29]). Five patients on CT revealed 141 pulmonary metastatic nodules (5.3 ± 2.6 mm); the overall nodule detection rate of accelerated spiral 3D UTE was sensitivity of 90.8% (128/141), accuracy of 87.7%, and positive predictive value of 96.2%. In the Bland-Altman plot analysis comparing nodule size between CT and MRI, 132/141 nodules (93.6%) were inside the limits of agreement.ConclusionAccelerated free-breathing spiral 3D UTE using the SPIRiT algorithm could be a potential alternative to CT for oncology patients.

scholarly journals Three-dimensional magnetic resonance imaging ultrashort echo-time cones for assessing lung density in pediatric patients

2020 ◽  
Author(s):  
Konstantinos G. Zeimpekis ◽  
Julia Geiger ◽  
Florian Wiesinger ◽  
Gaspar Delso ◽  
Christian J. Kellenberger
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pediatric Patients ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Lung Density ◽  
Ultrashort Echo Time ◽  
Echo Time

scholarly journals Volumetric imaging of myelin in vivo using 3D inversion recovery‐prepared ultrashort echo time cones magnetic resonance imaging

2020 ◽  
Vol 33 (10) ◽  
Author(s):  
Ya‐Jun Ma ◽  
Adam C. Searleman ◽  
Hyungseok Jang ◽  
Shu‐Juan Fan ◽  
Jonathan Wong ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Inversion Recovery ◽  
Resonance Imaging ◽  
3D Inversion ◽  
Ultrashort Echo Time ◽  
Volumetric Imaging ◽  
Echo Time

scholarly journals Ultrashort echo time (UTE) magnetic resonance imaging of myelin: technical developments and challenges

2020 ◽  
Vol 10 (6) ◽  
pp. 1186-1203 ◽  
Author(s):  
Ya-Jun Ma ◽  
Hyungseok Jang ◽  
Eric Y. Chang ◽  
Annie Hiniker ◽  
Brian P. Head ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Technical Developments ◽  
Echo Time
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