当前位置： SCI文献检索 > MAGNETIC RESONANCE IMAGING期刊下所有文献 > A method for imaging of chemical shift or magnetic field distributions.

A method for imaging of chemical shift or magnetic field distributions.

Abstract：

:A phase encoding method for imaging of chemical shift or magnetic field distributions is described. The method utilizes the spin-echo principle and the time period between signal collection and excitation is constant but the time period between excitation and the 180 degrees pulse is varied by constant steps. The method is relatively easy to apply with the Fourier or projection reconstruction methods.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Sepponen RE

doi

10.1016/0730-725x(85)90253-x

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

163-7

issue

2

eissn

0730-725X

issn

1873-5894

pii

0730-725X(85)90253-X

journal_volume

3

pub_type

杂志文章

相关文献

MAGNETIC RESONANCE IMAGING文献大全
  • Three-dimensional adiabatic inversion recovery prepared ultrashort echo time cones (3D IR-UTE-Cones) imaging of cortical bone in the hip.

    abstract：PURPOSE:We present three-dimensional adiabatic inversion recovery prepared ultrashort echo time Cones (3D IR-UTE-Cones) imaging of cortical bone in the hip of healthy volunteers using a clinical 3T scanner. METHODS:A 3D IR-UTE-Cones sequence, based on a short pulse excitation followed by a 3D Cones trajectory, with a ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2017.07.012

    authors： Nazaran A,Carl M,Ma Y,Jerban S,Zhu Y,Lu X,Du J,Chang EY

    更新日期：2017-12-01 00:00:00

  • Magnetic resonance cholangiopancreatography (MRCP) of intraductal papillary-mucinous neoplasm (IPMN) of the pancreas: case report.

    abstract：:The intraductal papillary-mucinous neoplasm (IPMN) is the rarest of the cystic pancreatic tumors. Endoscopic retrograde cholangiopancreatography (ERCP) is currently the gold standard for evaluating IPMN's and can demonstrate dilatation of the main duct or side branches, mural nodules, filling defects, and communicatio...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(01)00440-4

    authors： Peters HE,Vitellas KM

    更新日期：2001-10-01 00:00:00

  • Artifacts in magnetic resonance imaging after surgical resection of brain tumors.

    abstract：BACKGROUND:Since the advent of magnetic resonance imaging, metal artifacts have posed an important diagnostic problem in different fields of medicine. However, this has not been systematically studied in patients undergoing surgery for brain tumors. OBJECTIVE:This study was planned to assess whether metal artifacts ca...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2012.11.001

    authors： Bagheri MH,Ahmadloo N,Rezaian S

    更新日期：2013-06-01 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

  • Active intrahepatic gadolinium extravasation following TIPS.

    abstract：:A 31-year-old male patient had a transjugular intrahepatic portal systemic shunt (TIPS) placed for acute Budd-Chiari syndrome secondary to paroxysmal nocturnal hemoglobinuria (PNH). Post-procedure, he was anticoagulated for his underlying paroxysmal nocturnal hemoglobinuria. After 11 days, he complained of upper abdom...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(98)00081-2

    authors： Hasegawa S,Eisenberg LB,Semelka RC

    更新日期：1998-09-01 00:00:00

  • Flat map areal topography in Macaca mulatta based on combined MRI and histology.

    abstract：:Flattened representations are a useful approach to represent the convoluted complex surface of the neocortex of primates and other large-brained mammals. In this study, we compared the flattened representation of neocortical areas obtained from the recently published MRI and histology atlas of the rhesus monkey brain ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2010.03.023

    authors： Sultan F,Hamodeh S,Murayama Y,Saleem KS,Logothetis N

    更新日期：2010-10-01 00:00:00

  • Three dimensional texture analysis in MRI: a preliminary evaluation in gliomas.

    abstract：:The discrimination of tumor boundaries from normal tissue, as well as the evaluation of tissue heterogeneity and tumor grading often continue to pose a challenge in MRI. Although yielding promising results in various fields of medical imaging, two- dimensional (2D) texture analysis in MRI has, until now, demonstrated ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(03)00201-7

    authors： Mahmoud-Ghoneim D,Toussaint G,Constans JM,de Certaines JD

    更新日期：2003-11-01 00:00:00

  • Quantitative diffusion MRI using reduced field-of-view and multi-shot acquisition techniques: Validation in phantoms and prostate imaging.

    abstract：PURPOSE:To evaluate the reproducibility of quantitative diffusion measurements obtained with reduced Field of View (rFOV) and Multi-shot EPI (msEPI) acquisitions, using single-shot EPI (ssEPI) as a reference. METHODS:Diffusion phantom experiments, and prostate diffusion-weighted imaging in healthy volunteers and patie...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.04.006

    authors： Zhang Y,Holmes J,Rabanillo I,Guidon A,Wells S,Hernando D

    更新日期：2018-09-01 00:00:00

  • Quantitative analysis of asymmetrical cortical activity in motor areas during sequential finger movement.

    abstract：:Brain asymmetry is a phenomenon well known for handedness and has been studied in motor cortices. However, few quantitative studies on asymmetrical cortical activity in motor areas have been conducted. In this study, we systematically investigated asymmetrical cortical activity in motor areas during sequential finger ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2007.03.024

    authors： Zeng L,Chen H,Ouyang L,Yao D,Gao JH

    更新日期：2007-12-01 00:00:00

  • Diffusion-weighted imaging in epilepsy.

    abstract：:Diffusion-weighted imaging (DWI) is a relatively new magnetic resonance imaging (MRI) technique that can be used to probe the microenvironment of water. Contrast in DWI depends on properties different from traditional T1 and T2 contrast, and is derived form the translational motion of water molecules. Since it is reas...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章,评审

    doi：10.1016/0730-725x(95)02036-s

    authors： Helpern JA,Huang N

    更新日期：1995-01-01 00:00:00

  • Dual-acquisition phase-sensitive fat-water separation using balanced steady-state free precession.

    abstract：:Balanced steady-state free precession (SSFP) sequences use fully re-focussed gradient waveforms to achieve a high signal and useful image contrast in short scan times. Despite these strengths, the clinical feasibility of balanced SSFP is still limited both by bright fat signal and by the signal voids that result from ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2005.10.013

    authors： Hargreaves BA,Bangerter NK,Shimakawa A,Vasanawala SS,Brittain JH,Nishimura DG

    更新日期：2006-02-01 00:00:00

  • Brain glioma growth model using reaction-diffusion equation with viscous stress tensor on brain MR images.

    abstract：:In this paper, a new reaction-diffusion model with viscous stress tensor is proposed for modeling the diffusion and invasion of brain glioma cells, which is based on the model in Yuan J.J., Liu L., Hu Q.M. Mathematical modeling of brain glioma growth using modified reaction-diffusion equation on brain MR images. Compu...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2015.10.012

    authors： Yuan J,Liu L

    更新日期：2016-02-01 00:00:00

  • DTI of trabecular bone marrow.

    abstract：:The development of NMR diffusion imaging and diffusion tensor imaging (DTI) has offered the possibility of studying the porous structures beyond anatomical imaging. In fact, random molecular motions, within tissue components, probe tissue microstructures. Up to now, the DTI method was mainly used to investigate cerebr...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2004.11.018

    authors： Rossi C,Capuani S,Fasano F,Alesiani M,Maraviglia B

    更新日期：2005-02-01 00:00:00

  • Perfusion imaging by un-inverted flow-sensitive alternating inversion recovery (UNFAIR).

    abstract：:A new pulse sequence for estimating cerebral blood flow called UNFAIR, which uses a combination of sequential hyperbolic secant preparatory pulses, is introduced. This sequence is based on the same generalized conditions as previously introduced inversion recovery techniques except that the spins in the image slice of...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(96)00353-0

    authors： Helpern JA,Branch CA,Yongbi MN,Huang NC

    更新日期：1997-01-01 00:00:00

  • Partial angle inversion recovery (PAIR) MR imaging: spin-echo and snapshot implementation.

    abstract：:The effects of varying the inversion or excitation RF pulse flip angles on image contrast and imaging time have been investigated in IR imaging theoretically, with phantoms and with normal volunteers. Signal intensity in an IR pulse sequence as a function of excitation, inversion and refocusing pulse flip angles was c...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(92)90481-e

    authors： Vinitski S,Albert S,Mitchell DG,Tasciyan TA,Rifkin MD

    更新日期：1992-01-01 00:00:00

  • In vivo nuclear magnetic resonance imaging and spectroscopy of aquatic organisms.

    abstract：:NMR imaging and localized 1H spectroscopy of a variety of aquatic organisms in vivo is described for the first time. The practical consideration of life support, water volume, salinity, and anesthesia are discussed and solutions presented. Such animal studies shape our understanding of physiology, biochemistry, and bi...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(90)90253-x

    authors： Blackband SJ,Stoskopf MK

    更新日期：1990-01-01 00:00:00

  • A purpose-built neck coil for black-blood DANTE-prepared carotid artery imaging at 7T.

    abstract：:Atherosclerotic plaques in the bifurcation of the carotid arteries can pose a significant health risk due to possible plaque rupture and subsequent stroke. The assessment of plaques, and evaluation of the risk they pose, can be performed with Black-Blood (BB) vessel wall magnetic resonance imaging. However, resolution...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2017.04.011

    authors： Papoutsis K,Li L,Near J,Payne S,Jezzard P

    更新日期：2017-07-01 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

  • In vivo measurement of diffusion and pseudo-diffusion in skeletal muscle at rest and after exercise.

    abstract：:To investigate whether diffusion-related compartmentalization could be observed in skeletal muscle and whether this compartmentalization was affected by exercising, attenuation curves of signal against diffusion weighting were obtained in skeletal muscle of nine healthy volunteers at rest and after an exercise. Fiftee...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(94)00096-l

    authors： Morvan D

    更新日期：1995-01-01 00:00:00

  • Clinical implementation of a multislice high spectral and spatial resolution-based MRI sequence to achieve unilateral full-breast coverage.

    abstract：:High-resolution, single-slice, high spatial and spectral resolution (HiSS) breast magnetic resonance imaging (MRI) provides improved lesion conspicuity, margin definition and internal definition, as compared to conventional clinical MRI - and thus may provide better lesion characterization and increase breast MRI spec...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2009.05.022

    authors： Medved M,Newstead GM,Abe H,Olopade OI,Shimauchi A,Zamora MA,Karczmar GS

    更新日期：2010-01-01 00:00:00

  • Electrocardiograph-triggered two-dimensional time-of-flight versus optimized contrast-enhanced three-dimensional MR angiography of the peripheral arteries.

    abstract：:We determined whether the accuracy of magnetic resonance angiography (MRA) in the peripheral run-off vessels can be improved by using contrast-enhanced (CE) three-dimensional (3D) technique in comparison to electrocardiograph (ECG)-triggered two-dimensional (2D) time-of-flight (TOF) technique. In a prospective study 2...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/s0730-725x(98)00078-2

    authors： Vosshenrich R,Kopka L,Castillo E,Böttcher U,Graessner J,Grabbe E

    更新日期：1998-10-01 00:00:00

  • Application of magnetic resonance imaging to the measurement of neurodegeneration in rat brain: MRI data correlate strongly with histology and enzymatic analysis.

    abstract：:Focal brain ischemia was induced by middle cerebral artery occlusion in the rat. The volume of cerebral damage was determined 2 days later by MRI in vivo and in the same animals histologically. The edema volume as measured by MRI and the histologically determined infarction was highly correlated. As a consequence, the...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(92)90411-r

    authors： Allegrini PR,Sauer D

    更新日期：1992-01-01 00:00:00

  • Biodistribution of GdCl3 and Gd-DTPA and their influence on proton magnetic relaxation in rat tissues.

    abstract：:The biodistribution and relative molar effectiveness of the ionic (GdCl3) and chelated (Gd-DTPA) forms of gadolinium (Gd) to enhance proton relaxation rates in rat kidney, liver and spleen were evaluated. Rats were given intravenous injections of either GdCl3 (100 mumol/kg) or Gd-DTPA (178 mumol/kg). Gd-DTPA was prima...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(87)90023-3

    authors： Barnhart JL,Kuhnert N,Bakan DA,Berk RN

    更新日期：1987-01-01 00:00:00

  • Can preoperative diffusion-weighted MRI predict postoperative hepatic insufficiency after curative resection of HBV-related hepatocellular carcinoma? A pilot study.

    abstract：:Liver fibrosis determines the functional liver reserve. Several studies have reported that the apparent diffusion coefficient (ADC) values of diffusion-weighted magnetic resonance imaging (DW-MRI) can assess liver fibrosis. We investigated whether DW-MRI predicts postoperative hepatic insufficiency and liver fibrosis ...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2010.03.018

    authors： Kim SU,Kim YC,Choi JS,Kim KS,Choi GH,Choi JS,Park JY,Kim DY,Ahn SH,Choi EH,Park YN,Chon CY,Han KH,Kim MJ

    更新日期：2010-07-01 00:00:00

  • Surface coil imaging of rat spine at 7.0 T.

    abstract：:An inductively coupled surface coil for imaging the rat spine at 7 T is described. This planar circular probe was made from microwave substrate to limit the size of the coil and to minimize the magnetic susceptibility. The surface coil was used as a single transmit/receive coil and as a receive-only coil with a birdca...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(92)90447-8

    authors： Banson ML,Cofer GP,Hedlund LW,Johnson GA

    更新日期：1992-01-01 00:00:00

  • Quantitative longitudinal fluid saturation profiles with a slice-selected CPMG sequence.

    abstract：:A technique for obtaining quantitative longitudinal saturation/porosity profiles of rock cores which are longer than the NMR coil has been developed. The slice-selected experiment uses a prefocused pulse in conjunction with a magnetic field gradient for the localization and a CPMG sequence to sample the data. A variet...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(94)91547-4

    authors： Pierens GK,Peyron M,Lucas AJ,Carpenter TA,Hall LD,Potter GF,Stewart RC,Phelps DW

    更新日期：1994-01-01 00:00:00

  • Influence of excess ligand on Nephrogenic Systemic Fibrosis associated with nonionic, linear gadolinium-based contrast agents.

    abstract：BACKGROUND:The molecular structure, charge, thermodynamic and kinetic stability are approximately the same for gadodiamide and gadoversetamide, the main substantive difference is that gadodiamide is manufactured with 5% free ligand to form Omniscan® and gadoversetamide with 10% free ligand to form OptiMARK®. PURPOSE:T...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2018.11.015

    authors： Semelka RC,Prybylski JP,Ramalho M

    更新日期：2019-05-01 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

  • Diffusion pore imaging with generalized temporal gradient profiles.

    abstract：:In porous material research, one main interest of nuclear magnetic resonance diffusion (NMR) experiments is the determination of the shape of pores. While it has been a longstanding question if this is in principle achievable, it has been shown recently that it is indeed possible to perform NMR-based diffusion pore im...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/j.mri.2013.03.027

    authors： Laun FB,Kuder TA

    更新日期：2013-09-01 00:00:00

  • Initial clinical evaluation of gadolinium DTPA for contrast-enhanced magnetic resonance imaging.

    abstract：:Gadolinium DTPA was evaluated as an intravenous contrast agent for magnetic resonance imaging in 15 patients with primary or secondary intracranial neoplastic disease. T1 and T2 weighted images were obtained prior to contrast administration. T1 weighted spin echo 35/800 (TE/TR) images were utilized to detect enhanceme...

    journal_title：Magnetic resonance imaging

    pub_type： 杂志文章

    doi：10.1016/0730-725x(85)90006-2

    authors： Runge VM,Schoerner W,Niendorf HP,Laniado M,Koehler D,Claussen C,Felix R,James AE Jr

    更新日期：1985-01-01 00:00:00