3D free-breathing cardiac magnetic resonance fingerprinting.

abstract：:We propose a very high-resolution, three-dimensional (3D) gradient-echo technique with a twofold parallel imaging acceleration using a specialized occipital receiver coil at 3 T to perform functional MRI (fMRI) of the visual cortex. This configuration makes it possible to acquire 3D fMRI data within a timescale compat...

journal_title：NMR in biomedicine

authors： Barth M,Norris DG

更新日期：2007-08-01 00:00:00

abstract：:Diffusion tensor imaging (DTI) provides an indirect measure of tissue structure on a microscopic scale. To date, DTI is the only imaging method that provides such information in vivo, and has proven to be a valuable tool in both research and clinical settings. In this study, we investigated the relationship between wh...

journal_title：NMR in biomedicine

authors： Choe AS,Stepniewska I,Colvin DC,Ding Z,Anderson AW

更新日期：2012-07-01 00:00:00

abstract：:In this study the conjugated macromolecular ligand, diethylenetriaminepentaacetic acid (DTPA)-amide-dextran, was synthesized by attaching DTPA to the dextran macromolecule (M(r) approximately 6000) by a covalent amide bond. Subsequently, DTPA-amide-dextran was complexed with either of the two lanthanide metal ions dys...

journal_title：NMR in biomedicine

authors： Chu WJ,Elgavish GA

更新日期：1995-06-01 00:00:00

abstract：:Nonbiological total disc replacement is currently being used for the treatment of intervertebral disc (IVD) disease and injury, but these implants are prone to mechanical wear, tear and possible dislodgement. Recently, tissue-engineered total disc replacement (TE-TDR) has been investigated as a possible alternative to...

journal_title：NMR in biomedicine

authors： Bowles RD,Gebhard HH,Dyke JP,Ballon DJ,Tomasino A,Cunningham ME,Härtl R,Bonassar LJ

更新日期：2012-03-01 00:00:00

abstract：:One of the major goals of hyperpolarized-gas MR imaging has been to obtain (129)Xe dissolved-phase images in humans. Since the dissolved-phase signal is much weaker than the gas-phase signal, highly optimized MR pulse sequences are required to obtain adequate images during a single breath-hold. In particular, a solid ...

journal_title：NMR in biomedicine

authors： Ruppert K,Brookeman JR,Hagspiel KD,Driehuys B,Mugler JP 3rd

更新日期：2000-06-01 00:00:00

abstract：:Cerebral edema is a major complication of acute liver failure but may also be seen in other forms of liver failure such as acute-on-chronic liver failure (ACLF) and chronic liver failure (CLF). ACLF develops in patients with previously well-compensated chronic liver disease following acute hepatitis A or E superimpose...

journal_title：NMR in biomedicine

authors： Nath K,Saraswat VA,Krishna YR,Thomas MA,Rathore RK,Pandey CM,Gupta RK

更新日期：2008-08-01 00:00:00

abstract：:Diffusion tensor imaging (DTI) has been employed for over 2 decades to noninvasively quantify central nervous system diseases/injuries. However, DTI is an inadequate simplification of diffusion modeling in the presence of coexisting inflammation, edema and crossing nerve fibers. We employed a tissue phantom using fixe...

journal_title：NMR in biomedicine

authors： Ye Z,Gary SE,Sun P,Mustafi SM,Glenn GR,Yeh FC,Merisaari H,Song C,Yang R,Huang GS,Kao HW,Lin CY,Wu YC,Jensen JH,Song SK

更新日期：2021-01-01 00:00:00

abstract：:A recent analysis of the optimization of magnetization transfer experiments to estimate first-order rate constants is extended to the design of experiments for measuring these constants and T1 when both parameters are initially unknown. When the number of measurement times is fixed, an optimal design will consist of a...

journal_title：NMR in biomedicine

authors： Katki H,Weiss GH,Kiefer JE,Taitelbaum H,Spencer RG

更新日期：1996-05-01 00:00:00

abstract：:A study was undertaken to determine if the vascular characteristics measured by dynamic contrast-enhanced magnetic resonance imaging (primarily permeability surface area product and extracellular-extravascular tissue volume fraction) would be beneficial in explaining the inter-lesion metabolic heterogeneity displayed ...

journal_title：NMR in biomedicine

authors： Manton DJ,Lowry M,Rowland-Hill C,Crooks D,Mathew B,Turnbull LW

更新日期：2000-12-01 00:00:00

abstract：:The significance of NMR water diffusion measurements performed at short diffusion times (< 10 ms) for brain tissue is examined. An apparent restriction to diffusion for both healthy and cytotoxically edematous tissue is shown: cytotoxic edema lengthens the diffusion time at which this phenomenon is visible. The dramat...

journal_title：NMR in biomedicine

authors： Norris DG,Niendorf T,Leibfritz D

更新日期：1994-11-01 00:00:00

abstract：:The aim of this study was to investigate proton changes of the parotid gland after gustatory stimulation by semi-quantitative parameters and an empirical mathematical model (EMM) using high-temporal-resolution, double-echo, echo-planar imaging (EPI). Approved by a local institutional review board, this study examined ...

journal_title：NMR in biomedicine

authors： Liu YJ,Lee YH,Chang HC,Chiu HC,Chiu TW,Hsu K,Pen CM,Hsu HH,Juan CJ

更新日期：2018-03-01 00:00:00

abstract：:Balanced steady-state free precession imaging has recently been suggested for chemical exchange detection (bSSFPX). The objective of this work is to investigate the contributions of microstructural, chemical shift and chemical exchange effects to the asymmetry of the bSSFP profile at field strengths of 3 T and 9.4 T. ...

journal_title：NMR in biomedicine

authors： Heule R,Deshmane A,Zaiss M,Herz K,Ehses P,Scheffler K

更新日期：2020-03-01 00:00:00

abstract：:Modified gradient-echo MR techniques were applied to study the effects of inflow on functional brain imaging studies using visual and motor cortex stimulation. The results demonstrate that the large signal changes, seen in previously reported gradient-echo studies at 1.5-2.0 T, are dominated by direct inflow effects, ...

journal_title：NMR in biomedicine

authors： Duyn JH,Moonen CT,van Yperen GH,de Boer RW,Luyten PR

更新日期：1994-03-01 00:00:00

abstract：:An effective method for in vivo detection of early therapeutic response of patients with non-Hodgkin's lymphoma would enable personalized clinical management of cancer therapy and facilitate the design of optimal treatment regimens. This study evaluates the feasibility of T(2)-weighted MRI (T2WI) and diffusion-weighte...

journal_title：NMR in biomedicine

authors： Huang MQ,Pickup S,Nelson DS,Qiao H,Xu HN,Li LZ,Zhou R,Delikatny EJ,Poptani H,Glickson JD

更新日期：2008-11-01 00:00:00

abstract：:Non-alcoholic steatohepatitis (NASH) is characterized at histology by steatosis, hepatocyte ballooning and inflammatory infiltrates, with or without fibrosis. Although diamagnetic material in fibrosis and inflammation can be detected with quantitative susceptibility imaging, fatty acid composition changes in NASH rela...

journal_title：NMR in biomedicine

authors： Leporq B,Lambert SA,Ronot M,Vilgrain V,Van Beers BE

更新日期：2017-10-01 00:00:00

abstract：:We have developed a reliable, reproducible model of hypoxia in the gerbil. 1H and 31P NMR spectroscopy demonstrates that cerebral energy metabolism is very resistant to hypoxia. Cerebral blood flow (measured by hydrogen clearance) began to increase when the arterial oxygen tension (paO2) was reduced to 40-50 mm Hg, an...

journal_title：NMR in biomedicine

authors： Allen K,Busza AL,Crockard HA,Gadian DG

更新日期：1992-01-01 00:00:00

abstract：:Evaluation of high intensity focused ultrasound (HIFU) treatment with MRI is generally based on assessment of the non-perfused volume from contrast-enhanced T1-weighted images. However, the vascular status of tissue surrounding the non-perfused volume has not been extensively investigated with MRI. In this study, clus...

journal_title：NMR in biomedicine

authors： Jacobs I,Hectors SJ,Schabel MC,Grüll H,Strijkers GJ,Nicolay K

更新日期：2015-11-01 00:00:00

abstract：:The temporary or permanent storage of human bodies in freezers following a homicide is a documented method for criminal disposal of human corpses. In these cases, the detection of characteristics which indicate that a thawed cadaver or body part was previously frozen provides crucial information for forensic casework....

journal_title：NMR in biomedicine

authors： Gascho D,Richter H,Karampinos DC,Heimer J,Schaerli S,Thali MJ,Zoelch N

更新日期：2020-02-01 00:00:00

abstract：:Diffusion measurements were performed on the N-acetyl aspartate (NAA) signal in in situ brains (in vivo and post-mortem) and on in vitro brain tissue at 37 degrees C using wide ranges of b-values (from 0 up to 4.5 x 10(6) s/cm2 and 35.8 x 10(6) s/cm2 for the in vivo and the in vitro cases, respectively). In vivo and i...

journal_title：NMR in biomedicine

authors： Assaf Y,Cohen Y

更新日期：1998-04-01 00:00:00

abstract：:We describe the optimal high-level postprocessing of single-voxel (1)H magnetic resonance spectra and assess the benefits and limitations of automated methods as diagnostic aids in the detection of recurrent brain tumor. In a previous clinical study, 90 long-echo-time single-voxel spectra were obtained from 52 patient...

journal_title：NMR in biomedicine

authors： Menze BH,Lichy MP,Bachert P,Kelm BM,Schlemmer HP,Hamprecht FA

更新日期：2006-08-01 00:00:00

abstract：:Structural high-resolution imaging of the brainstem can be of high importance in clinical practice. However, ultra-high field magnetic resonance imaging (MRI) is still restricted in use due to limited availability. Therefore, quantitative MRI techniques (quantitative susceptibility mapping [QSM], relaxation measuremen...

journal_title：NMR in biomedicine

authors： Straub S,Knowles BR,Flassbeck S,Steiger R,Ladd ME,Gizewski ER

更新日期：2019-09-01 00:00:00

abstract：:Cerebrovascular reactivity (CVR) can give insight into the cerebrovascular function. CVR can be estimated by measuring a blood-oxygen-level-dependent (BOLD) response combined with breath-holding (BH). The reproducibility of this technique has been addressed and existing studies have focused on short-term reproducibili...

journal_title：NMR in biomedicine

authors： Peng SL,Yang HC,Chen CM,Shih CT

更新日期：2020-03-01 00:00:00

abstract：:MR Z-spectroscopy allows enhanced imaging contrast on the basis of saturation transfer between the proton pools of cellular compounds and water, occurring via chemical exchange (chemical exchange saturation transfer, CEST) or dipole-dipole coupling (nuclear Overhauser effect, NOE). In previous studies, signals observe...

journal_title：NMR in biomedicine

authors： Zaiss M,Kunz P,Goerke S,Radbruch A,Bachert P

更新日期：2013-12-01 00:00:00

abstract：:Polycystic kidney disease (PKD) is a life-threatening disease that leads to a grotesque enlargement of the kidney and significant loss of function. Several imaging studies with MRI have demonstrated that cyst size in polycystic kidneys can determine disease severity and progression. In the present study, we found that...

journal_title：NMR in biomedicine

authors： Xie L,Qi Y,Subashi E,Liao G,Miller-DeGraff L,Jetten AM,Johnson GA

更新日期：2015-05-01 00:00:00

abstract：:The increased magnetic susceptibility effects at higher magnetic fields increase the demands for shimming of the B0 field for in vivo MRI and MRS. Both static and dynamic techniques have been developed to compensate for susceptibility-induced field inhomogeneities. In this study, we investigate the impact of and need ...

journal_title：NMR in biomedicine

authors： Boer VO,Luttje MP,Luijten PR,Klomp DW

更新日期：2014-06-01 00:00:00

abstract：:In this study, the upper-limit volume (gas plus partial tissue volume) as well as absolute volume (gas only) of lungs measured with hyperpolarized (3)He-MR imaging is compared with that determined by micro-computed tomography (CT) under similar ventilation conditions in normal rats. Five Brown Norway rats (210-259 g) ...

journal_title：NMR in biomedicine

authors： Akhavan Sharif MR,Lam WW,Ouriadov AV,Holdsworth DW,Santyr GE

更新日期：2010-05-01 00:00:00

abstract：:The purpose of this study was to identify the optimal tracer kinetic model from T1 -weighted dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) data and evaluate whether parameters estimated from the optimal model predict tumor aggressiveness determined from histopathology in patients with papillary thyroi...

journal_title：NMR in biomedicine

authors： Paudyal R,Lu Y,Hatzoglou V,Moreira A,Stambuk HE,Oh JH,Cunanan KM,Aramburu Nunez D,Mazaheri Y,Gonen M,Ho A,Fagin JA,Wong RJ,Shaha A,Tuttle RM,Shukla-Dave A

更新日期：2020-01-01 00:00:00

abstract：:We introduce a new protocol to obtain very high-frame-rate cinematographic (Cine) MRI movies of the beating mouse heart within a reasonable measurement time. The method is based on a self-gated accelerated fast low-angle shot (FLASH) acquisition and compressed sensing reconstruction. Key to our approach is that we exp...

journal_title：NMR in biomedicine

authors： Motaal AG,Coolen BF,Abdurrachim D,Castro RM,Prompers JJ,Florack LM,Nicolay K,Strijkers GJ

更新日期：2013-04-01 00:00:00

abstract：:Results are presented from an in vivo study of human skin in which a zig-zag surface coil together with a three-pulse Fourier Series Window (FSW) protocol have been used to obtain minimally contaminated 31P skin spectra of the posterior calf. Phantom experiments indicate that while the fall-off in the B1 field profile...

journal_title：NMR in biomedicine

authors： Cowie AG,Bastin ME,Manners DN,Hands LJ,Styles P,Radda GK

更新日期：1996-08-01 00:00:00

abstract：:This review assesses the progress of NMR in the field of hemorheology, i.e., the assessment of the mechanical and physical characteristics of flowing blood. The review deals with the intrinsic rheological properties of the red cell and its constituents (membrane, cytoplasm), which are dominant in the microcirculation,...

journal_title：NMR in biomedicine

authors： Berling C,Hall LD

更新日期：1989-06-01 00:00:00