Results 91 to 100 of about 4,993 (209)

Ultrashort Echo Time and Fast Field Echo Imaging for Spine Bone Imaging with Application in Spondylolysis Evaluation

Computation
Isthmic spondylolysis is characterized by a stress injury to the pars interarticularis bones of the lumbar spines and is often missed by conventional magnetic resonance imaging (MRI), necessitating a computed tomography (CT) for accurate diagnosis.
Diana Vucevic, Vadim Malis, Yuichi Yamashita, Anya Mesa, Tomosuke Yamaguchi, Suraj Achar, Mitsue Miyazaki, Won C. Bae   +7 more
doaj   +1 more source

The dataset on the clipped cerebral aneurysm and their radiological findings in three-dimensional computed tomography, time-of-flight magnetic resonance angiography (TOF-MRA), and Pointwise Encoding Time Reduction with Radial Acquisition (PETRA)-MRA

Data in Brief, 2021
These data present the 141 intracranial arterial branches' visibilities near the 72 cerebral aneurysms in postoperative 58 patients treated with titanium or cobalt-chromium-nickel-molybdenum (CCNM) alloy clips.
Akihiro Nishikawa, Masahito Katsuki, Yukinari Kakizawa, Naomichi Wada, Yasunaga Yamamoto, Toshiya Uchiyama   +5 more
doaj   +1 more source

Evaluation of cortical bone perfusion using dynamic contrast enhanced ultrashort echo time imaging: a feasibility study. [PDF]

, 2019
Background:Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) has been used to study perfusion in a wide variety of soft tissues including the bone marrow.
Bydder, Graeme, Du, Jiang, Jang, Hyungseok, Shao, Hongda, Sheth, Vipul, Wan, Lidi, Wu, Mei   +6 more
core  

Comparison of Signal‐ and Volume‐Based Ventilation‐Weighted Assessment Using 3D FLORET UTE MRI in Patients With Various Pulmonary Disease

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2814-2827, May 2026.
ABSTRACT Purpose 3D free‐breathing, proton, contrast‐agent‐free MR methods are increasingly used for pulmonary ventilation‐weighted measurements. The methods are split between: (1) signal‐based, which rely on lung parenchyma signal changes during respiration, and (2) volume‐based that utilize the Jacobian determinant of deformation fields from the ...
Filip Klimeš, Joseph W. Plummer, Andreas Voskrebenzev, Marcel Gutberlet, Marius M. Klein, Matthew M. Willmering, Alexander M. Matheson, Abdullah S. Bdaiwi, Frank Wacker, Jason C. Woods, Zackary I. Cleveland, Laura L. Walkup, Jens Vogel‐Claussen   +12 more
wiley   +1 more source

Attenuation correction for brain PET imaging using deep neural network based on dixon and ZTE MR images

, 2018
Positron Emission Tomography (PET) is a functional imaging modality widely used in neuroscience studies. To obtain meaningful quantitative results from PET images, attenuation correction is necessary during image reconstruction. For PET/MR hybrid systems,
Fakhri, Georges El, Gong, Kuang, Kim, Kyungsang, Li, Quanzheng, Seo, Youngho, Yang, Jaewon   +5 more
core   +1 more source

Magnetic resonance imaging of the zone of calcified cartilage in the knee joint using 3-dimensional ultrashort echo time cones sequences

Chinese Medical Journal, 2019
. Background:. The zone of calcified cartilage (ZCC) plays an important role in the pathogenesis of osteoarthritis (OA) but has never been imaged in vivo with magnetic resonance (MR) imaging techniques.
Jin Liu, Yang Wei, Ya-Jun Ma, Yan-Chun Zhu, Quan Zhou, Ying-Hua Zhao, Li-Shao Guo   +6 more
doaj   +1 more source

Quantitative MRI Musculoskeletal Techniques: An Update. [PDF]

, 2019
OBJECTIVE. For many years, MRI of the musculoskeletal system has relied mostly on conventional sequences with qualitative analysis. More recently, using quantitative MRI applications to complement qualitative imaging has gained increasing interest in the
Chang, Eric Y, de Mello, Ricardo, Du, Jiang, Ji, Yang, Ma, Yajun   +4 more
core   +1 more source

3D Automated Segmentation of Bronchial Abnormalities on Ultrashort Echo Time MRI: A Quantitative MR Outcome in Cystic Fibrosis

Journal of Magnetic Resonance Imaging, Volume 63, Issue 4, Page 1190-1200, April 2026.
ABSTRACT Background Cystic fibrosis (CF) monitoring relies on computed tomography (CT), but ultra‐short echo time MRI (UTE‐MRI) offers a radiation‐free alternative. However, its clinical adoption is hindered by the laborious and subjective manual analysis, which prevents standardized quantification of bronchial abnormalities.
Amel Imene Hadj Bouzid, Ilyes Benlala, Baudouin Denis de Senneville, Fabien Baldacci, Julie Macey, Wadie Benhassen, Pan Su, Stephanie Bui, Maeva Zysman, Aurelien Bustin, Patrick Berger, Gael Dournes   +11 more
wiley   +1 more source

Detection of solid and subsolid pulmonary nodules with lung MRI: performance of UTE, T1 gradient-echo, and single-shot T2 fast spin echo

Cancer Imaging, 2023
Background Although MRI is a radiation-free imaging modality, it has historically been limited in lung imaging due to inherent technical restrictions.
Felipe Sanchez, Pascal N. Tyrrell, Patrick Cheung, Chinthaka Heyn, Simon Graham, Ian Poon, Yee Ung, Alexander Louie, May Tsao, Anastasia Oikonomou   +9 more
doaj   +1 more source

Iron deposits in the knee joints of a thalassemic patient [PDF]

, 2012
The overall prognosis for patients with β-thalassemia has improved considerably during the past decades mainly due to regular blood transfusions, improvements in chelation therapy, and enhanced surveillance with imaging studies examining iron overload ...
Economides, Charalambos P, Hadjigavriel, Michalis, Karantanas, Apostolos, Seimenis, Ioannis, Soteriades, Elpidoforos S   +4 more
core   +2 more sources