当前位置： SCI文献检索 > MAGNETIC RESONANCE IMAGING期刊下所有文献 > NMR imaging, NMR diffraction and applications of pulsed gradient spin echoes in porous media.

NMR imaging, NMR diffraction and applications of pulsed gradient spin echoes in porous media.

Abstract：

:Diffraction ideas were first introduced to NMR by Mansfield and Grannell. Here we compare "Mansfield (k-space) diffraction" with the "diffusive (q-space) diffraction," noting their similarities and differences. The diffusive-diffraction concept is extremely helpful in elucidating the Pulsed Gradient Spin Echo NMR experiment for fluid molecules in porous media and has been applied successfully to the model isolated pore (the "single slit" case) and the orientationally disordered interconnected pore glass (the "powder grating" case). This picture is based on the idea that the PGSE experiment has a scattering analogy in which a wavevector (q) is conjugate to the displacement of the spins over the time, D, between the gradient pulses. Recently, the theory has been extended to allow for both wall relaxation effects and finite gradient pulse width effects.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Callaghan PT

doi

10.1016/s0730-725x(96)00152-x

subject

Has Abstract

pub_date

1996-01-01 00:00:00

pages

701-9

issue

7-8

eissn

0730-725X

issn

1873-5894

pii

S0730-725X(96)00152-X

journal_volume

14

pub_type

杂志文章

相关文献

MAGNETIC RESONANCE IMAGING文献大全
  • Analysis of time reduction methods for magnetic resonance elastography of the brain.

    abstract：:Magnetic resonance elastography (MRE) uses a phase-contrast MRI technique to image shear wave propagation in tissue followed by the mathematical inversion of the equations of motion governing tissue mechanics to noninvasively image tissue stiffness. This work investigates the impact of various MR sampling strategies d...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2010.06.016

    authors： Murphy MC,Glaser KJ,Manduca A,Felmlee JP,Huston J 3rd,Ehman RL

    更新日期：2010-12-01 00:00:00

  • Computerized quantification of carotid artery stenosis using MRA axial images.

    abstract：:Currently, the North American symptomatic carotid endarterectomy trial, European carotid surgery trial, and common carotid method are used to measure the carotid stenosis for determining candidates for carotid endarterectomy using the projection angiography from different modalities such as digital subtraction angiogr...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2004.01.007

    authors： Kim DY,Park JW

    更新日期：2004-04-01 00:00:00

  • Real-time animal functional magnetic resonance imaging and its application to neuropharmacological studies.

    abstract：:In pharmacological magnetic resonance imaging (phMRI) with anesthetized animals, there is usually only a single time window to observe the dynamic signal change to an acute drug administration since subsequent drug injections are likely to result in altered response properties (e.g., tolerance). Unlike the block-desig...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2008.02.020

    authors： Lu H,Yang S,Zuo Y,Demny S,Stein EA,Yang Y

    更新日期：2008-11-01 00:00:00

  • Recreational runners with patellofemoral pain exhibit elevated patella water content.

    abstract：:Increased bone water content resulting from repetitive patellofemoral joint overloading has been suggested to be a possible mechanism underlying patellofemoral pain (PFP). To date, it remains unknown whether persons with PFP exhibit elevated bone water content. The purpose of this study was to determine whether recrea...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2014.04.018

    authors： Ho KY,Hu HH,Colletti PM,Powers CM

    更新日期：2014-09-01 00:00:00

  • In vivo MR evaluation of Gd-DTPA conjugated to dextran in normal rabbits.

    abstract：:A dextran-Gd-DTPA compound has been recently synthesized utilizing 70,800 Da molecular weight dextran. This polymeric contrast agent for magnetic resonance imaging has been found chemically to be very stable and to demonstrate in vitro improved relaxivities of 1.5 to 2.3 times that of monomeric Gd-DTPA at 100 MHz. Thi...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(92)90515-2

    authors： Li KC,Quisling RG,Armitage FE,Richardson D,Mladinich C

    更新日期：1992-01-01 00:00:00

  • MRI of the anal canal: correlation with histologic examination.

    abstract：:The purpose of this study was to correlate the MRI features of the anal canal with histologic findings. T1- and T2-weighted MR images of nine anal canals were obtained after fixation in 10% formalin. In three specimens, imaging was repeated after removal of histologic layers with a dissecting microscope. Corresponding...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(95)02056-y

    authors： Van Beers BE,Kartheuser A,Delos MA,Grandin C,Detry R,Jamart J,Pringot J

    更新日期：1996-01-01 00:00:00

  • Correction of intensity nonuniformity in MR images of any orientation.

    abstract：:The specialised radiofrequency (RF) coils used in MRI such as head or surface coils can give rise to marked image intensity nonuniformities. There are two situations in which it is essential to correct this: (1) When a global intensity threshold is used to segment particular tissues; and (2) in proton density images, ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(93)90023-7

    authors： Wicks DA,Barker GJ,Tofts PS

    更新日期：1993-01-01 00:00:00

  • Magnetic resonance imaging of mouse Ehrlich carcinoma growth inhibition by thiacarpine, an analogue of cytotoxic marine alkaloid polycarpine.

    abstract：:The anticancer effect of thiacarpine, a synthetic analogue of the known cytotoxic alkaloid polycarpine isolated from the Pacific ascidian Polycarpa aurata, was investigated in vivo in experiments using mouse solid Ehrlich carcinoma tumor as the target. A high-resolution magnetic resonance imaging (MRI) technique using...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2008.01.014

    authors： Agafonova IG,Radchenko OS,Novikov VL,Aminin DL,Stonik VA

    更新日期：2008-07-01 00:00:00

  • Noninvasive evaluation of the regional variations of GABA using magnetic resonance spectroscopy at 3 Tesla.

    abstract：PURPOSE:Rapid regional fluctuations in GABA may result in inhomogeneous concentrations throughout the brain parenchyma. The goal of this study is to provide further insight into the natural distribution of GABA throughout the brain and thus determine if a surrogate site may be used for spectroscopy when evaluating moto...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2015.02.015

    authors： Durst CR,Michael N,Tustison NJ,Patrie JT,Raghavan P,Wintermark M,Sendhil Velan S

    更新日期：2015-06-01 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

  • Gd-EOB-DTPA-enhanced-MR imaging in the inflammation stage of nonalcoholic steatohepatitis (NASH) in mice.

    abstract：OBJECTIVE:The purpose of this study is to investigate the correlation between the liver kinetics of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) and liver histopathology in a mouse model of NASH by using dynamic contrast-enhanced MRI. MATERIALS AND METHODS:Twenty male C57/BL6 mice aged 8we...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2016.03.009

    authors： Yamada T,Obata A,Kashiwagi Y,Rokugawa T,Matsushima S,Hamada T,Watabe H,Abe K

    更新日期：2016-07-01 00:00:00

  • Optimized 3D bright blood MRI of aortic plaque at 3 T.

    abstract：PURPOSE:To evaluate the feasibility of an optimized bright blood MRI protocol at 3 T in combination with contrast agent administration for the detection and characterization of aortic high-risk plaques for the improved workup of acute stroke patients. MATERIALS AND METHODS:ECG synchronized T1-weighted 3D gradient echo...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2007.08.010

    authors： Markl M,Dudler P,Fydrychowicz A,Strecker C,Weiller C,Hennig J,Harloff A

    更新日期：2008-04-01 00:00:00

  • 7T CEST MRI: A potential imaging tool for the assessment of tumor grade and cell proliferation in breast cancer.

    abstract：OBJECTIVES:To investigate the feasibility of chemical exchange saturation transfer (CEST) MRI in patients with breast carcinomas and possible correlations between magnetization transfer asymmetry (MTRasym) values and histological features, such as tumor grade and the Ki-67 proliferation index. MATERIALS AND METHODS:Ni...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2019.03.004

    authors： Zaric O,Farr A,Poblador Rodriguez E,Mlynarik V,Bogner W,Gruber S,Asseryanis E,Singer CF,Trattnig S

    更新日期：2019-06-01 00:00:00

  • Muscle and fat quantification in MRI gradient echo images using a partial volume detection method. Application to the characterization of pig belly tissue.

    abstract：:Complete dissection is the current reference method to quantify muscle and fat tissue on pig carcasses. Magnetic resonance imaging (MRI) is an appropriate nondestructive alternative method that can provide reliable and quantitative information on pig carcass composition without losing the spatial information. We have ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2005.05.001

    authors： Monziols M,Collewet G,Mariette F,Kouba M,Davenel A

    更新日期：2005-07-01 00:00:00

  • Monitoring of task performance during functional magnetic resonance imaging of sensorimotor cortex at 1.5 T.

    abstract：:Functional magnetic resonance imaging (fMRI) has found widespread clinical interest. Difficulties in clinical use of the fMRI technique arise, considering the lack of knowledge about activation task performance. This accounts especially for sensorimotor activation studies, in which performance of the sensorimotor acti...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(95)02052-u

    authors： Baudendistel K,Schad LR,Wenz F,Essig M,Schröder J,Jahn T,Knopp MV,Lorenz WJ

    更新日期：1996-01-01 00:00:00

  • Two-tensor model-based bootstrapping on classified tensor morphologies: estimation of uncertainty in fiber orientation and probabilistic tractography.

    abstract：:In this manuscript, fast and clinically feasible model-based bootstrapping algorithms using a geometrically constrained two-tensor diffusion model are employed for estimating uncertainty in fiber orientation. A Monte-Carlo-based tensor morphology voxel classification algorithm is initially applied using single-tensor ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2012.07.004

    authors： Ratnarajah N,Simmons A,Bertoni M,Hojjatoleslami A

    更新日期：2013-02-01 00:00:00

  • Electric stimulation fMRI of the perforant pathway to the rat hippocampus.

    abstract：:The hippocampal formation is a brain system that is implicated in learning and memory. The major input to the hippocampus arrives from the entorhinal cortex (EC) to the dentate gyrus (DG) through the perforant path. In the present work, we have investigated the functional properties of this connection by concomitantly...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2008.02.018

    authors： Canals S,Beyerlein M,Murayama Y,Logothetis NK

    更新日期：2008-09-01 00:00:00

  • Microstructure abnormity in the optic nerve of type 1 diabetic rats revealed by diffusion tensor imaging study.

    abstract：:Diabetic retinopathy (DR) is one of a major complication of type 1 diabetes mellitus (T1DM) and a leading cause of blindness. Evidence of animal study has shown that it is not only a microvasucular lesion of the eye, but also a neurodegeneration disease of the visual system. However, the in vivo imaging evidence of ax...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2020.05.003

    authors： Gao L,Huang M,Luo X,Song T,Wang X,Wang Z,Zhang W,Chen J,Lei H

    更新日期：2020-09-01 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

  • The effects of respiratory CO2 fluctuations in the resting-state BOLD signal differ between eyes open and eyes closed.

    abstract：:Resting fluctuations in arterial CO2 (a cerebral vasodilator) are believed to be an important source of low-frequency blood oxygenation level dependent (BOLD) signal fluctuations. In this study we focus on the two commonly used resting-states in functional magnetic resonance imaging experiments, eyes open and eyes clo...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2012.06.013

    authors： Peng T,Niazy R,Payne SJ,Wise RG

    更新日期：2013-04-01 00:00:00

  • Spine MR images in patients with pedicle screw fixation: Comparison of conventional and SEMAC-VAT sequences at 1.5 T.

    abstract：BACKGROUND AND PURPOSE:Slice-encoding metal artifact corrections (SEMAC)-view-angle tilting (VAT) sequences have recently been used in clinical protocols to reduce metal artifacts in MR scans of patients with spinal instrumentation. The objective of this study was to compare the SEMAC-VAT sequence with the conventional...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.08.002

    authors： Park C,Lee E,Yeo Y,Kang Y,Lee JW,Ahn JM,Kang HS

    更新日期：2018-12-01 00:00:00

  • Assessment of transplant renal artery stenosis with diffusion-weighted imaging: A preliminary study.

    abstract：OBJECTIVE:To characterize capillary perfusion and tissue diffusion changes in transplant renal artery stenosis (TRAS) with diffusion-weighted imaging (DWI). MATERIALS & METHODS:We retrospectively identified 30 patients with non-contrast enhanced magnetic resonance angiography-proven TRAS. Another 20 kidney transplant ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2019.05.007

    authors： Fan M,Ni X,Li Y,Chen J,Cheng D,Shi D,He X,Wen J

    更新日期：2019-07-01 00:00:00

  • MR characteristics of neoplasms and vascular malformations associated with epilepsy.

    abstract：:We assessed the magnetic resonance (MR) imaging characteristics of two categories of epileptogenic substrates, neoplasms, and vascular malformations, to determine MR sensitivity and typical imaging features. A blinded retrospective analysis was performed on MR scans from 41 patients who had a neoplasm or vascular malf...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(95)02026-p

    authors： Bronen RA,Fulbright RK,Spencer DD,Spencer SS,Kim JH,Lange RC

    更新日期：1995-01-01 00:00:00

  • Simultaneous PET-MRI in oncology: a solution looking for a problem?

    abstract：:With the recent development of integrated positron emission tomography-magnetic resonance imaging (PET-MRI) scanners, new possibilities for quantitative molecular imaging of cancer are realized. However, the practical advantages and potential clinical benefits of the ability to record PET and MRI data simultaneously m...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章,评审

    doi：10.1016/j.mri.2012.06.001

    authors： Yankeelov TE,Peterson TE,Abramson RG,Izquierdo-Garcia D,Arlinghaus LR,Li X,Atuegwu NC,Catana C,Manning HC,Fayad ZA,Gore JC

    更新日期：2012-11-01 00:00:00

  • Diffusional kurtosis imaging of cingulate fibers in Parkinson disease: comparison with conventional diffusion tensor imaging.

    abstract：OBJECTIVE:The pathological changes in Parkinson disease begin in the brainstem; reach the limbic system and ultimately spread to the cerebral cortex. In Parkinson disease (PD) patients, we evaluated the alteration of cingulate fibers, which comprise part of the limbic system, by using diffusional kurtosis imaging (DKI)...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2013.06.009

    authors： Kamagata K,Tomiyama H,Motoi Y,Kano M,Abe O,Ito K,Shimoji K,Suzuki M,Hori M,Nakanishi A,Kuwatsuru R,Sasai K,Aoki S,Hattori N

    更新日期：2013-11-01 00:00:00

  • Assessment of the anomalous pulmonary circulation by dynamic contrast-enhanced MR angiography in under four seconds.

    abstract：:The purpose of this study was to demonstrate the initial results of the dynamic contrast-enhanced MRA in under four seconds in the assessment of anomalous pulmonary circulation. We performed dynamic contrast enhanced MRA on ten patients with a temporal resolution of 2-3 sec for each phase. Five patients had pulmonary ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(02)00634-3

    authors： Balci NC,Yalçin Y,Tunaci A,Balci Y

    更新日期：2003-01-01 00:00:00

  • Characterisation of wetting heterogeneities in sandstone rocks by MRI.

    abstract：:MRI is applied to the visualisation of wetting heterogeneities evidenced by water proton T1 contrast at 0.1 T. Water saturated Fontainebleau sandstone samples were examined either in their original water-wet condition, or after silanation. T1, T2Hahn, and T2CPMG were measured for several porosities. T1 and T2CPMG of h...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(94)91557-1

    authors： Guillot G,Chardaire-Rivière C,Bobroff S,Le Roux A,Roussel JC,Cuiec L

    更新日期：1994-01-01 00:00:00

  • Off-resonance binomial preparatory pulse technique for high sensitivity MRI of H2O17.

    abstract：:H2O17 is a freely diffusible tracer and naturally occurring isotope of O16 detectable by MRI and has been shown to be useful for assessing cerebral perfusion in animal studies using direct and indirect MR detection techniques. However, earlier MR techniques are either not sensitive to changes in small concentrations o...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2003.09.005

    authors： Sood R

    更新日期：2004-02-01 00:00:00

  • Whole lesion histogram analysis of meningiomas derived from ADC values. Correlation with several cellularity parameters, proliferation index KI 67, nucleic content, and membrane permeability.

    abstract：PURPOSE:To analyze several histopathological features and their possible correlations with whole lesion histogram analysis derived from ADC maps in meningioma. MATERIALS AND METHODS:The retrospective study involved 36 patients with primary meningiomas. For every tumor, the following histogram analysis parameters of ap...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.05.009

    authors： Surov A,Hamerla G,Meyer HJ,Winter K,Schob S,Fiedler E

    更新日期：2018-09-01 00:00:00

  • NMR-contrast enhancement of experimental brain tumors with MnTPPS: qualitative evaluation by in vivo relaxometry.

    abstract：:The applicability of the synthetic manganese porphyrin MnTPPS as tumor-selective MRI-contrast agent for brain tumors was investigated quantitatively by in vivo relaxometry. To exclude toxic effects of side products, the purification method for MnTPPS was improved. As a result, MnTPPS+Cl- (free acid) with a purity of m...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(93)90007-z

    authors： Bockhorst K,Hoehn-Berlage M,Ernestus RI,Tolxdorf T,Hossmann KA

    更新日期：1993-01-01 00:00:00