Simultaneousin vivo spectral editing and water suppression
نویسندگان
چکیده
منابع مشابه
Simultaneous in vivo spectral editing and water suppression.
Water suppression is typically performed in vivo by exciting the longitudinal magnetization in combination with dephasing, or by using frequency-selective coherence generation. MEGA, a frequency-selective refocusing technique, can be placed into any pulse sequence element designed to generate a Hahn spin-echo or stimulated echo, to dephase transverse water coherences with minimal spectral disto...
متن کاملSoftware for spectral Analysis, Editing, and synthesis
This paper describes the design and development of new software for spectral analysis, editing and resynthesis. Analysis is accomplished using a variation of the traditional McAulay-Quatieri technique of peak interpolation and partial tracking. Linear prediction of the partial amplitudes and frequencies is used to determine the best continuations for sinusoidal tracks. A high performance user i...
متن کاملArtefact minimized spectral editing at 7T: quick and accurate in-vivo detection of GABA
Introduction: Spectral editing techniques are used in MRS to improve the detection of low concentrated metabolites like GABA [1], of which signals are overlapped with resonances of other highly concentrated compounds, such as Creatine and macromolecules. However, these methods rely on subtraction of two in vivo MR spectra and, therefore, are prone to artefacts. MRS at high field benefits from h...
متن کاملIn vivo γ‐aminobutyric acid measurement in rats with spectral editing at 4.7T
PURPOSE To evaluate the feasibility of spectral editing for quantification of γ-aminobutyric acid (GABA) in the rat brain and to determine whether altered GABA concentration in the ventral striatum is a neural endophenotype associated with trait-like impulsive behavior. MATERIALS AND METHODS Spectra were acquired at 4.7T for 23 male Lister-hooded rats that had been previously screened for ext...
متن کاملSpectral Based Color Image Editing (SBCIE)
Spectral based color image editing systems include methods for generating spectral representations of surfaces and illuminants from input signals of image capture devices (such as digital cameras and scanners), editing spectral representations of surfaces and illuminants in a scene, and transforming spectral representations of surfaces and illuminants to output signals of image devices (such as...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NMR in Biomedicine
سال: 1998
ISSN: 0952-3480,1099-1492
DOI: 10.1002/(sici)1099-1492(199810)11:6<266::aid-nbm530>3.0.co;2-j