Results 31 to 40 of about 26,868 (222)
Catalytic Enantioselective Intramolecular Aza‐Michael Addition to α,β‐Unsaturated Esters
Angewandte Chemie, EarlyView.A general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Evan G. W. Rutter +5 more
wiley +2 more sources
Applied Biological Chemistry, 2019 Our previous study we isolated novel bacterial stain, Epidermidibacterium keratini, called EPI-7T from skin samples. Repeated column separation yielded one new pyrimidine compound, 1,1′-biuracil, from EPI-7T culture solutions grown in R2A medium.
Yeong-Geun Lee +9 more
doaj +1 more source
A hybrid hierarchical strategy for registration of 7T TOF-MRI to 7T PC-MRI intracranial vessel data
International Journal of Computer Assisted Radiology and Surgery, 2023 Abstract Purpose 7T time-of-flight (TOF) MRI provides high resolution for the evaluation of cerebrovascular vessels and pathologies. In combination with 4D flow fields acquired with phase-contrast (PC) MRI, hemodynamic information can be extracted to enhance the analysis by providing direct measurements in the larger ...
Lena Spitz +5 more
openaire +2 more sources
Brain Sciences, 2022 Intracranial vessel wall lesions are involved in a variety of neurological diseases. The advanced technique 7T MRI provides greater efficacy in the diagnosis of the pathology changes in the vessel wall and helps to identify potential subtle lesions.
Chen Zhang, Jiong Shi
doaj +1 more source
, 2020 BIDS-formatted 7T MRI MP2RAGE and Sa2RAGE data acquired at the Centre for Functional and Metabolic Mapping in London (Ontario, Canada) + Snakemake workflow for analyses as performed in 'Effects of MP2RAGE B1+ sensitivity on inter-site T1 reproducibility ...
Roy Haast, Ali Khan, Jonathan C. Lau
core +1 more source
Contribution of the MP2RAGE 7T Sequence in MS Lesions of the Cervical Spinal Cord
, 2023 International audienceBACKGROUND AND PURPOSE: The detection of spinal cord lesions in patients with MS is challenging. Recently, the 3D MP2RAGE sequence demonstrated its usefulness at 3T. Benefiting from the high spatial resolution provided by ultra-high-
Pelletier, J. +19 more
core +1 more source
7T versus 3T MR Angiography to Assess Unruptured Intracranial Aneurysms [PDF]
, 2020 BACKGROUND AND PURPOSE: Aneurysm size and neck measurements are important for treatment decisions. The introduction of 7T magnetic resonance angiography (MRA) led to new possibilities assessing aneurysm morphology and flow due to the higher signal-to ...
Bart Cornelissen +22 more
core +1 more source
American Journal of NeuroradiologyThe increased SNR at 7T enables higher spatial resolution for neurovascular imaging, yet its application in pediatric MRA remains underexplored. This study systematically evaluates the advantages of 7T TOF-MRA compared with 3T in pediatric patients, hypothesizing that 7T would provide superior vessel contrast and increased vascular volume, given the ...
Sergio Valencia +10 more
openaire +2 more sources
7T MRI with post-processing for the presurgical evaluation of pharmacoresistant focal epilepsy
Therapeutic Advances in Neurological Disorders, 2021 Background: We aimed to evaluate the diagnostic yield of seven-tesla (7T) magnetic resonance imaging (MRI) with post-processing of three-dimensional (3D) T1-weighted (T1W) images by the morphometric analysis program (MAP) in epilepsy surgical candidates ...
Cong Chen +16 more
doaj +1 more source
Diagnostics, 2021 Bone fractal signature analysis (FSA—also termed bone texture analysis) is a tool that assesses structural changes that may relate to clinical outcomes and functions.
Mohamed Jarraya +10 more
doaj +1 more source