当前位置： SCI文献检索 > MAGNETIC RESONANCE IMAGING期刊下所有文献 > Parametric multiecho proton spectroscopic imaging: application to the rat brain in vivo.

Parametric multiecho proton spectroscopic imaging: application to the rat brain in vivo.

Abstract：

:A parametric multiecho variant of proton spectroscopic imaging (SI) is presented using a multiecho SI sequence with uniform phase-encoding of all echoes within each echo train. The acquisition of SI data sets at different echo times (TE) increases the amount of information obtained within the same total measuring time as in standard SI measurements. The gain in information can be used: (a) to choose the most appropriate TE for each metabolite signal with respect to T2, spin coupling, or problems caused by peak overlap; (b) to measure the relaxation time T2 of metabolite signals with high spatial resolution; or (c) to improve the signal-to-noise ratio for metabolite signals with long T2 values by adding spectra calculated from consecutive echoes. The method was tested in vivo on healthy rat brain and applied to study metabolic changes in rat brain lesions.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Dreher W,Leibfritz D

doi

10.1016/0730-725x(95)00027-e

subject

Has Abstract

pub_date

1995-01-01 00:00:00

pages

753-61

issue

5

eissn

0730-725X

issn

1873-5894

pii

0730725X9500027E

journal_volume

13

pub_type

杂志文章

相关文献

MAGNETIC RESONANCE IMAGING文献大全
  • Early assessment of breast cancer response to neoadjuvant chemotherapy by semi-quantitative analysis of high-temporal resolution DCE-MRI: preliminary results.

    abstract：PURPOSE:To evaluate whether semi-quantitative analysis of high temporal resolution dynamic contrast-enhanced MRI (DCE-MRI) acquired early in treatment can predict the response of locally advanced breast cancer (LABC) to neoadjuvant chemotherapy (NAC). MATERIALS AND METHODS:As part of an IRB-approved prospective study,...

    journal_title：Magnetic resonance imaging

    pub_type： 临床试验,杂志文章

    doi：10.1016/j.mri.2013.07.002

    authors： Abramson RG,Li X,Hoyt TL,Su PF,Arlinghaus LR,Wilson KJ,Abramson VG,Chakravarthy AB,Yankeelov TE

    更新日期：2013-11-01 00:00:00

  • A simple method for MR elastography: a gradient-echo type multi-echo sequence.

    abstract：:To demonstrate the feasibility of a novel MR elastography (MRE) technique based on a conventional gradient-echo type multi-echo MR sequence which does not need additional bipolar magnetic field gradients (motion encoding gradient: MEG), yet is sensitive to vibration. In a gradient-echo type multi-echo MR sequence, sev...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2014.10.002

    authors： Numano T,Mizuhara K,Hata J,Washio T,Homma K

    更新日期：2015-01-01 00:00:00

  • Highly homogeneous circularly polarized RF field for whole body NMR imaging.

    abstract：:Conditions for generation of polarized RF fields in cylindrical symmetry by high order coils are presented. Whole body NMR transmitters utilizing this principle would require a current control on a certain number of loops. In the present design this is obtained by feeding each loop by an appropriate linear combination...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(88)90398-0

    authors： Sotgiu A,Gualtieri G,Passariello R

    更新日期：1988-05-01 00:00:00

  • Magnetic resonance spectroscopy of the brain in neurologically asymptomatic HIV-infected patients.

    abstract：:The CNS involvement is frequently found in human immunodeficiency virus (HIV) infection. The purpose of our study was to determine whether proton magnetic resonance spectroscopy (MRS) could detect early brain involvement in neurologically asymptomatic HIV-infected patients with normal MR imagings and to find the corre...

    journal_title：Magnetic resonance imaging

    pub_type： 临床试验,杂志文章

    doi：10.1016/s0730-725x(00)00173-9

    authors： Suwanwelaa N,Phanuphak P,Phanthumchinda K,Suwanwela NC,Tantivatana J,Ruxrungtham K,Suttipan J,Wangsuphachart S,Hanvanich M

    更新日期：2000-09-01 00:00:00

  • High-resolution in vivo diffusion tensor imaging of the injured cat spinal cord using self-navigated, interleaved, variable-density spiral acquisition (SNAILS-DTI).

    abstract：:Diffusion tensor magnetic resonance imaging (DTI) is useful for studying the microstructural changes in the spinal cord following traumatic injury; however, image quality is generally poor due to the small size of the spinal cord, physiological motion and susceptibility artifacts. Self-navigated, interleaved, variable...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2010.06.006

    authors： Ellingson BM,Sulaiman O,Kurpad SN

    更新日期：2010-11-01 00:00:00

  • Effects of spatial smoothing on fMRI group inferences.

    abstract：:The analysis of functional magnetic resonance imaging (fMRI) data involves multiple stages of data pre-processing before the activation can be statistically detected. Spatial smoothing is a very common pre-processing step in the analysis of functional brain imaging data. This study presents a broad perspective on the ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2007.08.006

    authors： Mikl M,Marecek R,Hlustík P,Pavlicová M,Drastich A,Chlebus P,Brázdil M,Krupa P

    更新日期：2008-05-01 00:00:00

  • Characterization of light hydrocarbon reservoirs by gradient-NMR well logging.

    abstract：:New methods for acquiring and processing gradient NMR well log data enable signals from gas, light oil, and water to be unambiguously separated and, in many cases, quantified. These methods exploit the combined effects of T1-based and diffusion-based contrast on log response. T1 contrast, which separates the water and...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(96)00162-2

    authors： Mardon D,Prammer MG,Coates GR

    更新日期：1996-01-01 00:00:00

  • Investigations of polymer dynamics in nanoporous media by field cycling NMR relaxometry and the dipolar correlation effect.

    abstract：:The chain dynamics of short-chain perfluoropolyether melts confined in Vycor nanoporous media has been characterized by field cycling nuclear magnetic resonance relaxometry and the dipolar correlation effect. The slowdown of motions under confinement, leading to larger residual dipolar couplings, has been probed by lo...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2006.11.018

    authors： Kausik R,Fatkullin N,Hüsing N,Kimmich R

    更新日期：2007-05-01 00:00:00

  • The application of NMR imaging to the studies of enhanced oil recovery in China.

    abstract：:The advantages of the application of NMR imaging to the studies of enhanced oil recovery methods that include polymer slug flooding, combination slug flooding, and thermal soaking are described. ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(96)00192-0

    authors： Weimin W,Dongjiang L,Wei L

    更新日期：1996-01-01 00:00:00

  • Neuroprotective effect of agmatine in rats with transient cerebral ischemia using MR imaging and histopathologic evaluation.

    abstract：PURPOSE:This study aimed to further investigate the effects of agmatine on brain edema in the rats with middle cerebral artery occlusion (MCAO) injury using magnetic resonance imaging (MRI) monitoring and biochemical and histopathologic evaluation. MATERIALS AND METHODS:Following surgical induction of MCAO for 90min, ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2013.03.026

    authors： Huang YC,Tzeng WS,Wang CC,Cheng BC,Chang YK,Chen HH,Lin PC,Huang TY,Chuang TJ,Lin JW,Chang CP

    更新日期：2013-09-01 00:00:00

  • Dynamic contrast-enhanced MRI to assess hepatocellular carcinoma response to Transarterial chemoembolization using LI-RADS criteria: A pilot study.

    abstract：PURPOSE:To identify quantitative dynamic contrast-enhanced (DCE)-MRI perfusion parameters indicating tumor response of hepatocellular carcinoma (HCC) to transarterial chemoembolization (TACE). MATERIALS AND METHODS:This prospective pilot study was approved by our institutional review board; written and informed consen...

    journal_title：Magnetic resonance imaging

    pub_type： 临床试验,杂志文章

    doi：10.1016/j.mri.2019.06.017

    authors： Thibodeau-Antonacci A,Petitclerc L,Gilbert G,Bilodeau L,Olivié D,Cerny M,Castel H,Turcotte S,Huet C,Perreault P,Soulez G,Chagnon M,Kadoury S,Tang A

    更新日期：2019-10-01 00:00:00

  • A functionalized superparamagnetic iron oxide colloid as a receptor directed MR contrast agent.

    abstract：:We have synthesized a surface functionalized superparamagnetic iron oxide colloid whose clearance from the vascular compartment was inhibited by asialofetuin but not fetuin. Unlike other particulate or colloidal magnetic resonance (MR) contrast agents, the agent of the current communication is not withdrawn from the v...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(90)90143-p

    authors： Josephson L,Groman EV,Menz E,Lewis JM,Bengele H

    更新日期：1990-01-01 00:00:00

  • Optimal real-time estimation in diffusion tensor imaging.

    abstract：:Diffusion tensor imaging (DTI) constitutes the most used paradigm among the diffusion-weighted magnetic resonance imaging (DW-MRI) techniques due to its simplicity and application potential. Recently, real-time estimation in DW-MRI has deserved special attention, with several proposals aiming at the estimation of mean...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2011.12.001

    authors： Casaseca-de-la-Higuera P,Tristán-Vega A,Aja-Fernández S,Alberola-López C,Westin CF,San José Estépar R

    更新日期：2012-05-01 00:00:00

  • MR imaging of pterygoid muscle inflammation.

    abstract：:A case report of trismus after a dental procedure is evaluated by MR imaging. The medial and lateral pterygoid muscles showed inflammatory changes. Etiologies of trismus are reviewed. ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(90)90148-u

    authors： Ciacchella AP,Higgins WL

    更新日期：1990-01-01 00:00:00

  • Impact of baseline CO2 on Blood-Oxygenation-Level-Dependent MRI measurements of cerebrovascular reactivity and task-evoked signal activation.

    abstract：:Neurovascular coupling describes the cascade between neuronal activity and subsequent Blood-Oxygenation-Level-Dependent (BOLD) signal increase. Based on this premise, the correlation of this BOLD signal increase with a particular task, such as finger-tapping, is used to map neuronal activation. This signal increase ma...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.02.002

    authors： van Niftrik CHB,Piccirelli M,Bozinov O,Maldaner N,Strittmatter C,Pangalu A,Valavanis A,Regli L,Fierstra J

    更新日期：2018-06-01 00:00:00

  • Isotropically weighted intravoxel incoherent motion brain imaging at 7T.

    abstract：:Perfusion magnetic resonance imaging (MRI) is a promising non-invasive technique providing insights regarding the brain's microvascular architecture in vivo. The scalar perfusion metrics can be used for quantitative diagnostics of various brain abnormalities, in particular, in the stroke cases and tumours. However, co...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.11.007

    authors： Maximov II,Vellmer S

    更新日期：2019-04-01 00:00:00

  • Magnetic resonance imaging: application in musculoskeletal infection.

    abstract：:Forty-two patients with clinically suspected osteomyelitis were examined using magnetic resonance imaging (MRI). Twenty-seven patients (64%) had previous surgery or fracture, and 15 (36%) were referred for differentiation of acute osteomyelitis from bone tumors or other pathologic conditions. MRI was compared with com...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(85)90350-9

    authors： Berquist TH,Brown ML,Fitzgerald RH Jr,May GR

    更新日期：1985-01-01 00:00:00

  • Towards quantitative evaluation of wall shear stress from 4D flow imaging.

    abstract：:Wall shear stress (WSS) is a relevant hemodynamic indicator of the local stress applied on the endothelium surface. More specifically, its spatiotemporal distribution reveals crucial in the evolution of many pathologies such as aneurysm, stenosis, and atherosclerosis. This paper introduces a new solution, called PaLMA...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2020.08.017

    authors： Levilly S,Castagna M,Idier J,Bonnefoy F,Le Touzé D,Moussaoui S,Paul-Gilloteaux P,Serfaty JM

    更新日期：2020-12-01 00:00:00

  • 3D cerebrovascular segmentation combining fuzzy vessel enhancement and level-sets with anisotropic energy weights.

    abstract：:The aim of this work is to present and evaluate a level-set segmentation approach with vesselness-dependent anisotropic energy weights, which focuses on the exact segmentation of malformed as well as small vessels from time-of-flight (TOF) magnetic resonance angiography (MRA) datasets. In a first step, a vesselness fi...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2012.07.008

    authors： Forkert ND,Schmidt-Richberg A,Fiehler J,Illies T,Möller D,Säring D,Handels H,Ehrhardt J

    更新日期：2013-02-01 00:00:00

  • Background parenchymal enhancement in the contralateral normal breast of patients undergoing neoadjuvant chemotherapy measured by DCE-MRI.

    abstract：:The purpose of this study was to analyze background parenchymal enhancement (BPE) in the contralateral normal breast of cancer patients during the course of neoadjuvant chemotherapy (NAC). Forty-five subjects were analyzed. Each patient had three MRIs, one baseline (B/L) and two follow-up (F/U) studies. The fibrogland...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2013.07.014

    authors： Chen JH,Yu H,Lin M,Mehta RS,Su MY

    更新日期：2013-11-01 00:00:00

  • A method for MR quantification of flow velocities in blood and CSF using interleaved gradient-echo pulse sequences.

    abstract：:The aim of this study was to establish a rapid method for in vivo quantification of a large range of flow velocities using phase information. A basic gradient-echo sequence was constructed, in which flow was encoded along the slice selection direction by variation of the amplitude of a bipolar gradient without changes...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(89)90535-3

    authors： Ståhlberg F,Mogelvang J,Thomsen C,Nordell B,Stubgaard M,Ericsson A,Sperber G,Greitz D,Larsson H,Henriksen O

    更新日期：1989-11-01 00:00:00

  • Tsallis-Entropy Segmentation through MRF and Alzheimer anatomic reference for Brain Magnetic Resonance Parcellation.

    abstract：:Quantifying the intracranial tissue volume changes in magnetic resonance imaging (MRI) assists specialists to analyze the effects of natural or pathological changes. Since these changes can be subtle, the accuracy of the automatic compartmentalization method is always criticized by specialists. We propose and then eva...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2019.11.002

    authors： Azimbagirad M,Simozo FH,Senra Filho ACS,Murta Junior LO

    更新日期：2020-01-01 00:00:00

  • Sources of functional magnetic resonance imaging signal fluctuations in the human brain at rest: a 7 T study.

    abstract：:Signal fluctuations in functional magnetic resonance imaging (fMRI) can result from a number of sources that may have a neuronal, physiologic or instrumental origin. To determine the relative contribution of these sources, we recorded physiological (respiration and cardiac) signals simultaneously with fMRI in human vo...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2009.02.004

    authors： Bianciardi M,Fukunaga M,van Gelderen P,Horovitz SG,de Zwart JA,Shmueli K,Duyn JH

    更新日期：2009-10-01 00:00:00

  • Simultaneous recording of neuronal signals and functional NMR imaging.

    abstract：:We recently directly examined the relationship between blood-oxygen-level-dependent (BOLD) functional magnetic resonance imaging (fMRI) signals and neural activity by simultaneously acquiring electrophysiological and fMRI data from monkeys in a 4.7-T vertical scanner (Logothetis NK, Pauls J, Augath MA, Trinath T, Oelt...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2007.03.015

    authors： Oeltermann A,Augath MA,Logothetis NK

    更新日期：2007-07-01 00:00:00

  • NMR in rotating magnetic fields: magic-angle field spinning.

    abstract：:Magic-angle sample spinning is one of the cornerstones in high-resolution NMR of solid and semisolid materials. The technique enhances spectral resolution by averaging away rank 2 anisotropic spin interactions, thereby producing isotropic-like spectra with resolved chemical shifts and scalar couplings. In principle, i...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2004.11.067

    authors： Sakellariou D,Meriles CA,Martin RW,Pines A

    更新日期：2005-02-01 00:00:00

  • Evaluation of preprocessing steps to compensate for magnetic field distortions due to body movements in BOLD fMRI.

    abstract：:Blood oxygenation level-dependent (BOLD) functional magnetic resonance imaging (fMRI) is currently the dominant technique for non-invasive investigation of brain functions. One of the challenges with BOLD fMRI, particularly at high fields, is compensation for the effects of spatiotemporally varying magnetic field inho...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2009.07.005

    authors： Barry RL,Williams JM,Klassen LM,Gallivan JP,Culham JC,Menon RS

    更新日期：2010-02-01 00:00:00

  • Short T2 contrast with three-dimensional ultrashort echo time imaging.

    abstract：:There is increasing interest in imaging short T2 species which show little or no signal with conventional magnetic resonance (MR) pulse sequences. In this paper, we describe the use of three-dimensional ultrashort echo time (3D UTE) sequences with TEs down to 8 μs for imaging of these species. Image contrast was gener...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2010.11.003

    authors： Du J,Bydder M,Takahashi AM,Carl M,Chung CB,Bydder GM

    更新日期：2011-05-01 00:00:00

  • T2* measurements in human brain at 1.5, 3 and 7 T.

    abstract：:Measurements have been carried out in six subjects at magnetic fields of 1.5, 3 and 7 T, with the aim of characterizing the variation of T2* with field strength in human brain. Accurate measurement of T2* in the presence of macroscopic magnetic field inhomogeneity is problematic due to signal decay resulting from thro...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2007.02.014

    authors： Peters AM,Brookes MJ,Hoogenraad FG,Gowland PA,Francis ST,Morris PG,Bowtell R

    更新日期：2007-07-01 00:00:00

  • Quality assessment of localization technique performance in small volume in vivo 1H MR spectroscopy.

    abstract：:A new phantom and evaluation method for experimental evaluation of 1H-magnetic resonance spectroscopy single volume localization techniques regarding signal contamination (C), defined as the part of the signal originating outside the volume of interest, is presented. The quality assessment method is based on a spheric...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(99)00076-4

    authors： Burtscher IM,Johansson E,Holtås S,Ståhlberg F

    更新日期：1999-12-01 00:00:00

  • Nuclear magnetic resonance imaging techniques as developed modestly within a university medical center environment: what can the small system contribute at this point?

    abstract：:This paper describes a geometrically small NMR imaging system which has been developed and assembled within a university medical center environment. Consideration is given to the technical specifications and basic economics for the magnet system, NMR spectrometer, and computer configuration. Initial research objective...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(82)90268-5

    authors： Thomas SR,Ackerman JL,Goebel JR,Davis M,Kereiakes JG,Lin YY

    更新日期：1982-01-01 00:00:00