Results 171 to 180 of about 29,222 (335)

Pharmacokinetic modeling strategies for dynamic hyperpolarized urea imaging

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To evaluate pharmacokinetic modeling methods for quantification of tissue perfusion/permeability with hyperpolarized 13C urea. Methods Three models for quantitative analysis of dynamic HP urea imaging data were proposed and evaluated in numerical simulations and a thyroid cancer mouse model.
Keith A. Michel   +6 more
wiley   +1 more source

Does Hyams Grade Impact Outcomes in Olfactory Neuroblastoma?

open access: yes
The Laryngoscope, EarlyView.
Evan A. Patel   +4 more
wiley   +1 more source

ASL 4D MRA Intracranial Vessel Segmentation With Deep Learning U‐Nets

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose a spatio‐temporal U‐Net based network (4DST) that exploits both spatial and dynamic information while avoiding memory‐intensive 4D convolutional layers for ASL‐based non‐contrast enhanced 4‐dimensional MR angiography (4D MRA) vessel segmentation.
Sang Hun Chung   +7 more
wiley   +1 more source

Combining morphological and functional imaging parameters to diagnose primary bone neoplasms in the skull base, spine and sacrum

open access: hybrid
Vesna Miladinovic   +7 more
openalex   +1 more source

Should Induction Chemotherapy Be Considered First‐Line Therapy for Sinonasal Undifferentiated Carcinoma?

open access: yes
The Laryngoscope, EarlyView.
Daniel X. Ma   +3 more
wiley   +1 more source

Quantitative Susceptibility Mapping in Skull Base Chordoma: In Silico Analysis and In Vivo Application Towards Indirect Hypoxia Assessment

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate quantitative susceptibility mapping (QSM) beyond the brain through realistic simulations and to explore preliminary evidence that may be indicative of hypoxia in skull base chordomas (SBC). Methods Each step of the QSM pipeline was optimized within an in silico framework consisting of (i) phase unwrapping, (ii) background ...
P. Fenech   +8 more
wiley   +1 more source

31P MRSI Coil Combination Using 23Na Sensitivity Information

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To optimally combine receive channels for 31P MRSI when the SNR is relatively low using sensitivity maps obtained from 23Na signals. Methods This study utilized a dedicated X‐nuclei 15‐channel head coil array capable of imaging both 23Na and 31P.
Jiying Dai   +5 more
wiley   +1 more source

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