نتایج جستجو برای: synthetic mr

تعداد نتایج: 205485  

Journal: :Journal of the Belgian Society of Radiology 2021

Synthetic CT images reconstructed from MR is an upcoming artificial intelligence (AI) tool for radiologists. It has been validated detection of erosions at the sacroiliac joints and validation other applications ongoing – with high expectations. The technique uses deep learning, a subtype machine to reconstruct images. By adding one sequence some automated postprocessing, radiologist obtains sy...

2007
L. M. San-José-Revuelta C. Alberola-López

In this paper, a recently developed fiber tracking algorithm to be used with diffusion tensor (DT) fields acquired via magnetic resonance imaging (MRI) is improved and applied to real brain DT-MR images. The method performs satisfactorily in regions where branching and crossing fibers exist and offers the capability of reporting a probability value for the computed tracts. This certainty figure...

Journal: :Reproduction, fertility, and development 2005
P Erdeljan M H Andrews J F MacDonald S G Matthews

The hypothalamic-pituitary-adrenal (HPA) axis is susceptible to programming during fetal life. Such programming occurs, at least partially, at the level of the hippocampus. The hippocampus plays a central role in regulation of the HPA axis and release of endogenous glucocorticoids, via mediation of glucocorticoid negative feedback. Fetal exposure to synthetic glucocorticoids can permanently alt...

Journal: :Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia 2016
Chiara Sabbadin Lorenzo A Calò Decio Armanini

After the discovery of aldosterone (1953), many synthetic steroids were tested for their ability to block the sodium retaining and potassium excreting effect of synthetic mineralocorticoids in adrenalectomized rats. In the same years Kagawa discovered that 17-spirolactone steroids were effective to block mineralocorticoid effects, but when used alone they did not produce any effect in adrenalec...

2007
Luis M. San-José-Revuelta Marcos Martín-Fernández Carlos Alberola-López

In this paper, a recently developed fiber tracking algorithm to be used with diffusion tensor (DT) fields acquired via magnetic resonance imaging (MRI) is improved and applied to real brain DT-MR images. The method performs satisfactorily in regions where branching and crossing fibers exist and offers the capability of reporting a probability value for the computed tracts. This certainty figure...

Journal: :Energies 2021

An appropriate velocity model from well logs is a key issue in the processing and interpretation of seismic data. In deep borehole located central part Polish Outer Carpathians, sonic measurements were inadequate for purposes due to poor quality data gaps logging. Multiple regression (MR) modified Faust equation proposed log. MR estimated P-wave slowness as dependent variable on basis sets vari...

Journal: :The Biochemical journal 1989
D M Hardy A F Schoots J L Hedrick

Acrosin purified from an acidic extract of ejaculated goat spermatozoa migrated as a single 42,000-Mr band in SDS/polyacrylamide-gel electrophoresis. Reduction and alkylation of caprine acrosin produced two polypeptides, one of Mr 40,000 (heavy chain) and the other of Mr 3700 (light chain). The light chain purified by reversed-phase h.p.l.c. was a glycosylated octadecapeptide with an amino acid...

Introduction: Mitral valve insufficiency in adults is often a complication of ischemic heart disease. Coronary artery bypass grafting (CABG) is performed as a strategy for the treatment of coronary artery disease. The aim of this study was to evaluate mitral regurgitation (MR) before and after CABG. Materials and Methods: This Experimental study was condu...

Journal: :Chemical communications 2015
Yidan Hu Yun Yang Evgeny Katz Hao Song

An AND logic gate based on a synthetic quorum-sensing (QS) module was constructed in a Shewanella oneidensis MR-1 mtrA knockout mutant. The presence of two input signals activated the expression of a periplasmic decaheme cytochrome MtrA to regenerate the extracellular electron transfer conduit, enabling the construction of AND-gated microbial fuel cells.

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