Functional magnetic resonance cholangiography with Gd-EOB-DTPA: a study in healthy volunteers.

abstract：BACKGROUND AND PURPOSE:We occasionally encounter phenomena in which venous flow signals of the cavernous sinus (CS) and/or inferior petrosal sinus (IPS) are visualized paradoxically in patients without arteriovenous shunt in 3D time-of-flight magnetic resonance angiography (3D-TOF MRA) of the brain. The aims of this st...

journal_title：Magnetic resonance imaging

authors： Sakamoto M,Taoka T,Iwasaki S,Nakagawa H,Fukusumi A,Takayama K,Wada T,Kichikawa K

更新日期：2004-11-01 00:00:00

abstract：PURPOSE:To prospectively compare image quality and reliability of a non-contrast, self-navigated 3D whole-heart magnetic resonance angiography (MRA) sequence with contrast-enhanced computed tomography angiography (CTA) for sizing of thoracic aortic aneurysm (TAA). METHODS:Self-navigated 3D whole-heart 1.5 T MRA was pe...

journal_title：Magnetic resonance imaging

authors： Poskaite P,Pamminger M,Kranewitter C,Kremser C,Reindl M,Reiter G,Piccini D,Dumfarth J,Henninger B,Tiller C,Holzknecht M,Reinstadler SJ,Klug G,Metzler B,Mayr A

更新日期：2021-02-01 00:00:00

abstract：:We have applied diffusion and relaxation Nuclear Magnetic Resonance experiments to investigate the translational and rotational mobility of adsorbents on quartz and calcite mineral surfaces. On both surfaces it was found that water is the dominant molecule. On the quartz surface the majority of water molecules have a ...

journal_title：Magnetic resonance imaging

authors： Sørgård HN,Totland C,Nerdal W,Seland JG

更新日期：2019-02-01 00:00:00

abstract：PURPOSE:To determine the diagnostic performance of diffusion-weighted MRI and MR volumetry for the assessment of tumor response after preoperative chemoradiotherapy (CRT) in patients with locally advanced rectal cancer. MATERIALS AND METHODS:Forty-three patients with rectal cancer who underwent preoperative CRT were p...

journal_title：Magnetic resonance imaging

authors： Birlik B,Obuz F,Elibol FD,Celik AO,Sokmen S,Terzi C,Sagol O,Sarioglu S,Gorken I,Oztop I

更新日期：2015-02-01 00:00:00

abstract：:The dependence of BOLD signal change (BSC) on baseline hematocrit is in the process of being characterized, primarily using conventional Gradient Echo (GE) echo planar imaging (EPI). We describe the first empiric exploration of this relationship using, in addition to GE, Spin Echo (SE) and two Asymmetric Spin Echo EPI...

journal_title：Magnetic resonance imaging

authors： Gustard S,Williams EJ,Hall LD,Pickard JD,Carpenter TA

更新日期：2003-07-01 00:00:00

abstract：:In vivo spin-lattice relaxation times, T1, of water and lipid protons of normal and atrophic muscles were measured, using the spatially resolved spectroscopy (SPARS) sequence, in a genetic avian model of myopathy. These T1 values were compared with those of the hypertrophic muscles. Although the water T1 values of mus...

journal_title：Magnetic resonance imaging

authors： Misra LK,Narayana PA

更新日期：1989-05-01 00:00:00

abstract：:Twenty-seven patients with soft-tissue tumors were examined with a Picker 0.15-tesla resistive magnet and by computed tomography (CT). In all but one patient, MRI was better than or equal to CT in defining the anatomic extent of the tumor. We could determine whether major vascular structures were engulfed by the tumor...

journal_title：Magnetic resonance imaging

authors： Weekes RG,Berquist TH,McLeod RA,Zimmer WD

更新日期：1985-01-01 00:00:00

abstract：:Cells labeled by super paramagnetic iron-oxide (SPIO) nanoparticles are more easily seen in gradient echo MR images, but it has not been shown that the amount of nanoparticles or the number of cells can be directly quantified from MR images. This work utilizes a previously developed and improved Complex Image Summatio...

journal_title：Magnetic resonance imaging

authors： Kokeny P,Cheng YN,Liu S,Xie H,Jiang Q

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:The purpose of this study was to assess relationships between intramuscular adipose tissue (IntraMAT) content determined by MRI and intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL) determined by (1)H magnetic resonance spectroscopy ((1)H MRS) or echo intensity determined by B-mode ultrasonograp...

journal_title：Magnetic resonance imaging

authors： Akima H,Hioki M,Yoshiko A,Koike T,Sakakibara H,Takahashi H,Oshida Y

更新日期：2016-05-01 00:00:00

abstract：:Mycotic pseudoaneurysms of the ascending aorta are rare cardiovascular lesions that carry the risk of potentially disastrous complications such as aortic rupture or widespread sepsis. Regardless of its location in the arterial system, this lesion carries a high mortality rate. Early diagnosis of mycotic pseudoaneurysm...

journal_title：Magnetic resonance imaging

authors： McCuskey WH,Loehr SP,Smidebush GC,Link KM

更新日期：1993-01-01 00:00:00

abstract：:We have developed an in vivo longitudinally detected ESR (LODESR) imaging system operating at 700 MHz based on a loop-gap resonator and a pair of saddle-type pickup coils. A good linear relationship between the LODESR signal intensity and the applied power in a range up to 15.8 W was obtained. The detection of LODESR ...

journal_title：Magnetic resonance imaging

authors： Yokoyama H,Sato T,Tsuchihashi N,Ogata T,Ohya-Nishiguchi H,Kamada H

更新日期：1997-01-01 00:00:00

abstract：:In this retrospective study we tested the hypothesis that the net effect of impaired electrical conduction and therefore increased heat dissipation in multiple sclerosis (MS) results in elevated lateral ventricular (LV) cerebrospinal fluid (CSF) diffusivity as a measure of brain temperature estimated in vivo using dif...

journal_title：Magnetic resonance imaging

authors： Hasan KM,Lincoln JA,Nelson FM,Wolinsky JS,Narayana PA

更新日期：2015-04-01 00:00:00

abstract：:Tracking of signal intensity changes in soft tissue over time is often hampered by deformation of the tissue. In this study a method is described that uses finite element modeling to compensate for tissue deformation. The method is applied to the quantification of fluid redistribution in an intervertebral disc that de...

journal_title：Magnetic resonance imaging

authors： Kingma I,Weinans H,van Dieën JH,de Boer RW

更新日期：1998-01-01 00:00:00

abstract：PURPOSE:Only a few studies have investigated the brain morphology abnormalities in structural MRI in patients with drug-naïve idiopathic generalized epilepsy (IGE) and mainly focused on brain volume changes. In the present study, we aimed to investigate the changes in three morphologic measurement differences including...

journal_title：Magnetic resonance imaging

authors： Deng DM,Chen LZ,Li YW,Long R,Tang GC,Han FG,Diao XM,Chen HL,Long ZL,Qiu LH

更新日期：2019-09-01 00:00:00

abstract：:A magnetic resonance imaging (MRI) method is described that allows interleaved measurements of transverse (R(2)(*) and R(2)) and longitudinal (R(1)) relaxation rates of tissue water in conjunction with spin labeling. The image-contrasts are intrinsically blood oxygenation level dependent (BOLD) and cerebral blood flow...

journal_title：Magnetic resonance imaging

authors： Hyder F,Renken R,Kennan RP,Rothman DL

更新日期：2000-04-01 00:00:00

abstract：:Susceptibility-weighted imaging (SWI) is a valuable technique for high-resolution imaging of brain vasculature that greatly benefits from the emergence of higher field strength MR scanners. Autocalibrating partially parallel imaging techniques can be employed to reduce lengthy acquisition times as long as the decrease...

journal_title：Magnetic resonance imaging

authors： Lupo JM,Banerjee S,Hammond KE,Kelley DA,Xu D,Chang SM,Vigneron DB,Majumdar S,Nelson SJ

更新日期：2009-05-01 00:00:00

abstract：:Magnetic resonance imaging (MRI) has been used to characterize tissues in morphological studies. Here, 23Na NMR imaging was used to study the distribution in muscle of brine (5 M NaCl), injected before onset of rigor mortis. First, the distribution of brine was monitored in excised muscle from rabbits for 6 hr followi...

journal_title：Magnetic resonance imaging

authors： Renou JP,Benderbous S,Bielicki G,Foucat L,Donnat JP

更新日期：1994-01-01 00:00:00

abstract：:Glioblastoma Multiforme is the most common and most aggressive type of brain tumors. Although accurate prediction of Glioblastoma borders and shape is absolutely essential for neurosurgeons, there are not many in silico platforms that can make such predictions. In the current study, an automatic patient-specific simul...

journal_title：Magnetic resonance imaging

authors： Hajishamsaei M,Pishevar A,Bavi O,Soltani M

更新日期：2020-05-01 00:00:00

abstract：:We compared the ability of magnetic resonance imaging (MRI) using a 0.064 T permanent magnet, three-phase bone scanning, and indium-labeled white blood cell (111In-WBC) scanning, to diagnose osteomyelitis. Twenty-three patients underwent biopsy. All patients were examined at presentation with all three modalities. Sen...

journal_title：Magnetic resonance imaging

authors： Williamson MR,Quenzer RW,Rosenberg RD,Meholic AJ,Eisenberg B,Espinosa MC,Hartshorne MF

更新日期：1991-01-01 00:00:00

abstract：:Brain vascular damage accumulate in aging and often manifest as white matter hyperintensities (WMHs) on MRI. Despite increased interest in automated methods to segment WMHs, a gold standard has not been achieved and their longitudinal reproducibility has been poorly investigated. The aim of present work is to evaluate...

journal_title：Magnetic resonance imaging

authors： Ribaldi F,Altomare D,Jovicich J,Ferrari C,Picco A,Pizzini FB,Soricelli A,Mega A,Ferretti A,Drevelegas A,Bosch B,Müller BW,Marra C,Cavaliere C,Bartrés-Faz D,Nobili F,Alessandrini F,Barkhof F,Gros-Dagnac H,Ranjeva JP

更新日期：2021-02-01 00:00:00

abstract：:Acetaminophen (APAP) toxicity is responsible for approximately half of all cases of acute liver failure in the United States. The mouse model of APAP toxicity is widely used to examine mechanisms of APAP toxicity. Noninvasive approaches would allow for serial measurements in a single animal to study the effects of exp...

journal_title：Magnetic resonance imaging

authors： Brown AT,Ou X,James LP,Jambhekar K,Pandey T,McCullough S,Chaudhuri S,Borrelli MJ

更新日期：2012-02-01 00:00:00

abstract：:Poly(L-glutamic acid) (PGA)-cystamine-[gadolinium (Gd)-DO3A] was prepared in high yield with a high Gd-DO3A conjugation efficiency. Approximately 55% of the carboxylic groups in PGA were loaded with Gd-DO3A via cystamine as the spacer. Cystamine can be readily cleaved by endogenous thiols to release the Gd(III) chelat...

journal_title：Magnetic resonance imaging

authors： Ke T,Feng Y,Guo J,Parker DL,Lu ZR

更新日期：2006-09-01 00:00:00

abstract：:Multi-contrast magnetic resonance imaging (MRI) is a useful technique to aid clinical diagnosis. This paper proposes an efficient algorithm to jointly reconstruct multiple T1/T2-weighted images of the same anatomical cross section from partially sampled k-space data. The joint reconstruction problem is formulated as m...

journal_title：Magnetic resonance imaging

authors： Huang J,Chen C,Axel L

更新日期：2014-12-01 00:00:00

abstract：:We report the MR appearance of undifferentiated (embryonal) sarcoma of the liver (USL) in a 13-year-old female who presented with a 1-year history of intermittent abdominal pain, weight loss, and fatigue. The tumor was a large, solitary, well-defined focal mass lesion with multiple cystic spaces, septations, and subst...

journal_title：Magnetic resonance imaging

authors： Psatha EA,Semelka RC,Fordham L,Firat Z,Woosley JT

更新日期：2004-07-01 00:00:00

abstract：:The objective of this study was to describe magnetic resonance (MR) findings with a 1.5T imager for hepatic parenchymal changes after proton beam radiotherapy. Thirty-two patients who received proton radiotherapy with doses of 50-87 Gy underwent MR imaging 1-75 months (mean 22 months) after the start of irradiation. A...

journal_title：Magnetic resonance imaging

authors： Onaya H,Itai Y,Yoshioka H,Ahmadi T,Niitsu M,Okumura T,Akine Y,Matsuzaki Y,Doi M,Tsuji H,Tsujii H

更新日期：2000-07-01 00:00:00

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

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

abstract：:In this paper, we have presented a two stage method, using kernel principal component analysis (KPCA) and rough set theory (RST), for denoising volumetric MRI data. A rough set theory (RST) based clustering technique has been used for voxel based processing. The method groups similar voxels (3D cubes) using class and ...

journal_title：Magnetic resonance imaging

authors： Phophalia A,Mitra SK

更新日期：2017-02-01 00:00:00

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

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

abstract：:Magnetic resonance imaging (MRI) is a completely noninvasive modality that has shown significant promise for the evaluation of the cardiovascular system. Our imaging technique employed electrocardiographic (ECG) gating, which resulted in well-resolved images of the cardiac structures. Patients and animals with a varie...

journal_title：Magnetic resonance imaging

authors： McNamara MT,Higgins CB

更新日期：1984-01-01 00:00:00

abstract：:T2-weighted images are considered the most sensitive for lesion detection at high field; however, long imaging time is problematic. Accordingly, the authors compared four breath-hold T2 or T2* weighted sequences comprising T2*-weighted FLASH, T2*-weighted PSIF, T2-weighted rapid spin echo (RASE), and T2-weighted Turbo...

journal_title：Magnetic resonance imaging

authors： Simm FC,Semelka RC,Recht M,Deimling M,Lenz G,Laub GA

更新日期：1992-01-01 00:00:00