Results 41 to 50 of about 3,288 (238)

Ultrashort echo time for improved positive-contrast manganese-enhanced MRI of cancer. [PDF]

PLoS ONE, 2013
OBJECTIVE: Manganese (Mn) is a positive magnetic resonance imaging (MRI) contrast agent that has been used to obtain physiological, biochemical, and molecular biological information.
Joris Tchouala Nofiele, Hai-Ling Margaret Cheng   +1 more
doaj   +1 more source

Optimized 3D ultrashort echo time pulmonary MRI [PDF]

Magnetic Resonance in Medicine, 2012
PurposeTo optimize 3D radial ultrashort echo time MRI for high resolution whole‐lung imaging.Methods3D radial ultrashort echo time was implemented on a 3T scanner to investigate the effects of: (1) limited field‐of‐view excitation, (2) variable density readouts, and (3) radial oversampling.
Kevin M, Johnson, Sean B, Fain, Mark L, Schiebler, Scott, Nagle   +3 more
openaire   +2 more sources

Ultrashort Echo Time Magnetic Resonance Imaging Techniques: Met and Unmet Needs in Musculoskeletal Imaging [PDF]

, 2022
This review article summarizes recent technical developments in ultrashort echo time (UTE) magnetic resonance imaging of musculoskeletal (MSK) tissues with short-T2 relaxation times.
Saeed Jerban, Amir Masoud Afsahi, Christine B. Chung, Chang, Eric, Jerban, Saeed, Yajun Ma, Hyungseok Jang, Jang, Hyungseok, Eric Y. Chang, Chung, Christine, Afsahi, Amir, Ma, Yajun, Jiang Du, Du, Jiang   +13 more
core   +1 more source

Bright ultrashort echo time SWIFT MRI signal at the osteochondral junction is not located in the calcified cartilage [PDF]

, 2020
In this study, we aimed to precisely localize the hyperintense signal that is generated at the osteochondral junction when using ultrashort echo time magnetic resonance imaging (MRI) and to investigate the osteochondral junction using sweep imaging with ...
Karhula, S. S. (Sakari S.), Töyräs, J. (Juha), Nykänen, O. (Olli), Finnilä, M. A. (Mikko A. J.), Turunen, M. J. (Mikael J.), Saarakkala, S. (Simo), Leskinen, H. P. (Henri P. P.), Nissi, M. J. (Mikko J.)   +7 more
core   +4 more sources

Deep-Learning-Aided Evaluation of Spondylolysis Imaged with Ultrashort Echo Time Magnetic Resonance Imaging

Sensors, 2023
Isthmic spondylolysis results in fracture of pars interarticularis of the lumbar spine, found in as many as half of adolescent athletes with persistent low back pain. While computed tomography (CT) is the gold standard for the diagnosis of spondylolysis,
Suraj Achar, Dosik Hwang, Tim Finkenstaedt, Vadim Malis, Won C. Bae   +4 more
doaj   +1 more source

Ultrashort Echo-Time MRI for the Assessment of Tracheomalacia in Neonates

Chest, 2020
Bronchoscopy is the gold standard for evaluating tracheomalacia; however, reliance on an invasive procedure limits understanding of normal airway dynamics. Self-gated ultrashort echo-time MRI (UTE MRI) can assess tracheal dynamics but has not been rigorously evaluated.This study was a validation of UTE MRI diagnosis of tracheomalacia in neonates using ...
Erik B, Hysinger, Alister J, Bates, Nara S, Higano, Dan, Benscoter, Robert J, Fleck, Catherine K, Hart, Gregory, Burg, Alessandro, De Alarcon, Paul S, Kingma, Jason C, Woods   +9 more
openaire   +3 more sources

Ultrashort time to echo magnetic resonance techniques for the musculoskeletal system [PDF]

Quantitative Imaging in Medicine and Surgery, 2016
Magnetic resonance (MR) imaging has been widely implemented as a non-invasive modality to investigate musculoskeletal (MSK) tissue disease, injury, and pathology. Advancements in MR sequences provide not only enhanced morphologic contrast for soft tissues, but also quantitative biochemical evaluation.
Siriwanarangsun, Palanan, Statum, Sheronda, Biswas, Reni, Bae, Won C, Chung, Christine B   +4 more
openaire   +4 more sources

Ramped hybrid encoding for improved ultrashort echo time imaging [PDF]

Magnetic Resonance in Medicine, 2015
PurposeWe propose a new acquisition to minimize the per‐excitation encoding duration and improve the imaging capability for short T2* species.MethodsIn the proposed ramped hybrid encoding (RHE) technique, gradients are applied before the radiofrequency (RF) pulse as in pointwise encoding time reduction with radial acquisition (PETRA) and zero echo time
Hyungseok, Jang, Curtis N, Wiens, Alan B, McMillan   +2 more
openaire   +2 more sources

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

Frontiers in Oncology, 2021
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
Min Jae Cha, Hye Shin Ahn, Hyewon Choi, Hyun Jeong Park, Thomas Benkert, Josef Pfeuffer, Mun Young Paek   +6 more
doaj   +1 more source

Ultrashort echo time MRI biomarkers of asthma

Journal of Magnetic Resonance Imaging, 2016
PurposeTo develop and assess ultrashort echo‐time (UTE) magnetic resonance imaging (MRI) biomarkers of lung function in asthma patients.Materials and MethodsThirty participants including 13 healthy volunteers and 17 asthmatics provided written informed consent to UTE and pulmonary function tests in addition to hyperpolarized‐noble‐gas 3T MRI and ...
Sheikh, Khadija, Guo, Fumin, Capaldi, Dante P I, Ouriadov, Alexei, Eddy, Rachel L, Svenningsen, Sarah, Parraga, Grace   +6 more
openaire   +4 more sources