Early assessment of breast cancer response to neoadjuvant chemotherapy by semi-quantitative analysis of high-temporal resolution DCE-MRI: preliminary results.

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

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

更新日期：2010-12-01 00:00:00

abstract：PURPOSE:Visual review of individual spectra in magnetic resonance spectroscopic imaging (MRSI) data benefits from the application of spectral smoothing; however, if this processing step is applied prior to spectral analysis this can impact the accuracy of the quantitation. This study aims to analyze the effect of spect...

journal_title：Magnetic resonance imaging

authors： Goryawala M,Sullivan M,Maudsley AA

更新日期：2020-07-01 00:00:00

abstract：:The hippocampal formation possesses an important role in the development and maintenance of short-term memory. In this study, magnetic resonance imaging (MRI) and gross histology were used to quantify the volume of the hippocampal formation in canines. High resolution MRI, using 1 mm thick slices and an intraplanar re...

journal_title：Magnetic resonance imaging

authors： Vullo T,Deo-Narine V,Stallmeyer MJ,Gomez DG,Cahill PT

更新日期：1996-01-01 00:00:00

abstract：:The application of NMR Fricke-gelatin dosimetry to the imaging of dose distributions around high dose rate (HDR) radioactive Ir-192 seeds in brachytherapy is presented. The duration of the irradiations required to give changes of the Fricke-gelatin NMR characteristics, which were readily detected by the magnetic reson...

journal_title：Magnetic resonance imaging

authors： Schreiner LJ,Crooks I,Evans MD,Keller BM,Parker WA

更新日期：1994-01-01 00:00:00

abstract：:The increasing size and number of data sets of large four dimensional (three spatial, one temporal) magnetic resonance (MR) cardiac images necessitates efficient segmentation algorithms. Analysis of phase-contrast MR images yields cardiac flow information which can be manipulated to produce accurate segmentations of t...

journal_title：Magnetic resonance imaging

authors： Bergen RV,Lin HY,Alexander ME,Bidinosti CP

更新日期：2015-01-01 00:00:00

abstract：:In vivo temporal EPR imaging was conducted on the brain of rats that received one of two kinds of blood-brain barrier-permeable nitroxide radicals via the tail vein-one is a water-soluble 3-hydroxymethyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (hydroxymethyl-PROXYL); and the other is a non-water-soluble 3-methoxycarbony...

journal_title：Magnetic resonance imaging

authors： Yokoyama H,Itoh O,Aoyama M,Obara H,Ohya H,Kamada H

更新日期：2002-04-01 00:00:00

abstract：:3D (kx, ky, t)-space analysis is invoked to provide insights into dynamic magnetic resonance imaging (DMRI) with arbitrary k-space sampling trajectories. The effects of 3D sampling in (kx, ky, t) are analyzed theoretically and verified with computer simulation. The analyses show that a 3D sampling pattern that is more...

journal_title：Magnetic resonance imaging

authors： Park JB,Nishimura DG

更新日期：2006-10-01 00:00:00

abstract：:The purpose of this study was to develop a novel intravascular loopless monopole antenna (ILMA) design specifically for imaging of small vessel walls. The ILMA consisted of an unshielded, low-friction guide wire and a tuning/matching box. The material of the guide wire was nitinol and it was coated with polyurethane. ...

journal_title：Magnetic resonance imaging

authors： Yuan H,Lv X,Ma X,Zhang R,Fu Y,Yang X,Wang X,Zhang Z,Zhang J,Fang J

更新日期：2013-01-01 00:00:00

abstract：OBJECT:Quantitative T2 measurement is applied in cardiac Magnetic Resonance Imaging (MRI) for the diagnosis and follow-up of myocardial pathologies. Standard Electrocardiogram (ECG)-gated fast spin echo pulse sequences can be used clinically for T2 assessment, with multiple breath-holds. However, heart rate is subject ...

journal_title：Magnetic resonance imaging

authors： de Roquefeuil M,Vuissoz PA,Escanyé JM,Felblinger J

更新日期：2013-11-01 00:00:00

abstract：:NMR spectroscopy is applied to study microstructure of calcium silicate hydrates present in cement and concrete. It is shown that 29Si NMR gives information on the siliceous skeleton of the hydrates. 1H NMR, using CRAMPS techniques, allows to discriminate between protons linked to silicon atoms or to calcium atoms. A ...

journal_title：Magnetic resonance imaging

authors： Zanni H,Rassem-Bertolo R,Masse S,Fernandez L,Nieto P,Bresson B

更新日期：1996-01-01 00:00:00

abstract：:Fricke-agarose gels have been irradiated with a proton beam. Then samples have been extracted at different depths with respect to the beam penetration distance, corresponding to different irradiation doses. Relaxation times T1 and T2, measured at 17 MHz, appear sensitive to this kind of radiation. In particular, T2 ex...

journal_title：Magnetic resonance imaging

authors： Di Capua S,D'Errico F,Egger E,Guidoni L,Luciani AM,Rosi A,Viti V

更新日期：1997-01-01 00:00:00

abstract：AIM:To assess imaging findings and characteristics of the lymphatic system in patients affected by lipedema and lipolymphedema of the lower extremities on Non-Contrast MR Lymphography (NCMRL). MATERIALS AND METHODS:44 lower extremities in 11 consecutive female patients affected by lipedema, and 11 patients with lipoly...

journal_title：Magnetic resonance imaging

authors： Cellina M,Gibelli D,Soresina M,Menozzi A,Martinenghi C,Panzeri M,Oliva G

更新日期：2020-09-01 00:00:00

abstract：:Robust voxelwise analysis using tract-based spatial statistics (TBSS) together with permutation statistical method is standardly used in analyzing diffusion tensor imaging (DTI) of brain. A similar analytical method could be useful when studying DTI of cervical spinal cord. Based on anatomical data of sixty-four healt...

journal_title：Magnetic resonance imaging

authors： Dostál M,Keřkovský M,Staffa E,Bednařík J,Šprláková-Puková A,Mechl M

更新日期：2020-11-01 00:00:00

abstract：:The purpose of this study was to develop a method to determine time discrepancies between input and myocardial time-signal intensity (TSI) curves for accurate estimation of myocardial perfusion with first-pass contrast-enhanced MRI. Estimation of myocardial perfusion with contrast-enhanced MRI using kinetic models req...

journal_title：Magnetic resonance imaging

authors： Natsume T,Ishida M,Kitagawa K,Nagata M,Sakuma H,Ichihara T

更新日期：2015-11-01 00:00:00

abstract：PURPOSE:The purpose was to study the effect of estrogen deficiency on contrast agent diffusion into intervertebral disc in a rat model. MATERIALS AND METHODS:Seven-month-old female Sprague-Dawley rats were used. Fourteen rats had ovariectomy, and nine rats had sham surgery. Magnetic resonance imaging (MRI) of sagittal...

journal_title：Magnetic resonance imaging

authors： Deng M,Griffith JF,Zhu XM,Poon WS,Ahuja AT,Wang YX

更新日期：2012-06-01 00:00:00

abstract：:We propose a deuterium diffusion tracer approach to measure diffusion coefficient in the case of very short NMR relaxation times, too short for NMR pulsed field gradient sequences (T1 or T2 below 1 ms). We also treat the case of porous media containing metallic fibers (such as reinforced concrete) strongly disturbing ...

journal_title：Magnetic resonance imaging

authors： Fleury M,Berthe G,Chevalier T

更新日期：2019-02-01 00:00:00

abstract：:Automatic segmentation of different types of tissue from magnetic resonance images is of great importance for clinical and research applications, particularly large-scale and longitudinal studies of brain pathology. We developed a fully automated algorithm for the segmentation of lateral ventricles from cranial magnet...

journal_title：Magnetic resonance imaging

authors： Schönmeyer R,Prvulovic D,Rotarska-Jagiela A,Haenschel C,Linden DE

更新日期：2006-12-01 00:00:00

abstract：INTRODUCTION:Previous investigations of test-retest reliability of cerebral blood flow (CBF) at rest measured with pseudo-continuous Arterial Spin Labeling (pCASL) demonstrated good reliability, but are limited by the use of similar scanner platforms. In the present study we examined test-retest reliability of CBF in r...

journal_title：Magnetic resonance imaging

authors： Almeida JRC,Greenberg T,Lu H,Chase HW,Fournier JC,Cooper CM,Deckersbach T,Adams P,Carmody T,Fava M,Kurian B,McGrath PJ,McInnis MG,Oquendo MA,Parsey R,Weissman M,Trivedi M,Phillips ML

更新日期：2018-01-01 00:00:00

abstract：:Magnetic resonance imaging (MRI) and localized proton MR spectroscopy (MRS) techniques have been applied for studying different maturation processes in the histochemistry of coconut (Cocos nucifera). Images of the tender and mature coconut are characterized by protons of the aqueous solution present in the cavity and ...

journal_title：Magnetic resonance imaging

authors： Jagannathan NR,Govindaraju V,Raghunathan P

更新日期：1995-01-01 00:00:00

abstract：PURPOSE:To evaluate the clinical outcomes of conservative management by observation with MRI of patients with branch-duct intraductal papillary mucinous neoplasms (BD-IPMNs). MATERIALS AND METHODS:Twenty-three consecutive patients, who were followed up by MRI with magnetic resonance cholangiopancreatography (MRCP) ove...

journal_title：Magnetic resonance imaging

authors： Shin SS,Armao DM,Shah M,Kim YH,Lee CH,Rubinas T,Brubaker LM,Semelka RC

更新日期：2010-12-01 00:00:00

abstract：:Magnetic field gradients play a fundamental role in MR imaging and localized spectroscopy. The MRI experiment, in particular fast MRI, relies on precise gradient switching, which has become more demanding with the constantly growing number of fast imaging techniques. Here we present a simple MR method to measure the b...

journal_title：Magnetic resonance imaging

authors： Latta P,Gruwel ML,Volotovskyy V,Weber MH,Tomanek B

更新日期：2007-11-01 00:00:00

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

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

更新日期：2017-07-01 00:00:00

abstract：:The value of NMR spectrometry as a way to understand the porosity and permeability of rocks is well documented. Other more esoteric parameters, such as restrictive diffusion, grain size distribution, and fluid viscosities have received less notice but are also available from the NMR measurements as laboratory studies ...

journal_title：Magnetic resonance imaging

authors： Taicher Z,Coates G,Gitartz Y,Berman L

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:To develop a free-running framework for 3D isotropic simultaneous myocardial T1/T2 mapping and cine imaging. METHODS:Continuous data acquisition with 3D golden angle radial trajectory is used in conjunction with T2 preparation of varying echo times and inversion recovery (IR) pulses to enable simultaneous myoc...

journal_title：Magnetic resonance imaging

authors： Qi H,Bustin A,Cruz G,Jaubert O,Chen H,Botnar RM,Prieto C

更新日期：2019-11-01 00:00:00

abstract：:Biliary cystadenomas and their malignant counterparts, biliary cystadenocarcinomas, are rare cystic tumors that arise from hepatobiliary epithelium. Ultrasound (US) and computed tomography (CT) are the initial imaging modalities used for the evaluation of biliary cystic tumors, but are not specific. MRI and MRCP, beca...

journal_title：Magnetic resonance imaging

authors： Williams DM,Vitellas KM,Sheafor D

更新日期：2001-11-01 00:00:00

abstract：:A single injection of high-dose steroid (20 mg/kg) has been reported to induce necrotic lesions in the proximal metaphysis and diaphysis of the rabbit femur. In the rabbit osteonecrosis (ON) model induced by two-dose horse serum injections, contrast-enhanced magnetic resonance imaging (MRI) and T2*-weighted dynamic MR...

journal_title：Magnetic resonance imaging

authors： Takao M,Sugano N,Nishii T,Sakai T,Nakamura N,Yoshikawa H

更新日期：2009-02-01 00:00:00

abstract：:Lipomatous tumors of the uterus are unusual, benign neoplasms seen in postmenopausal women. Although many of the mixed-type cases such as lipoleiomyoma and fibrolipoma have been reported, pure uterine lipomas are extremely rare. In the literature, a few cases with pure uterine lipoma have been reported. We first prese...

journal_title：Magnetic resonance imaging

authors： Erdem G,Celik O,Karakas HM,Alkan A,Hascalik S

更新日期：2007-10-01 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：BACKGROUND AND PURPOSE:Diffusion MRI characteristics have been used as biomarkers to guide prognosis in cerebral pathologies including brain metastases. The measurement of ADC is often described poorly in clinical and research studies with little detail given to the practical considerations of where to place ROIs, whic...

journal_title：Magnetic resonance imaging

authors： Zakaria R,Das K,Bhojak M,Radon M,Sluming V,Walker C,Jenkinson MD

更新日期：2014-04-01 00:00:00

abstract：:The density driven convection phenomenon is expected to have a significant and positive role in CO2 geological storage capacity and safety. The onset and development of density-driven convective on the core scale is critical to understand the mass transfer mechanism. In this paper, laboratory experiments were conducte...

journal_title：Magnetic resonance imaging

authors： Teng Y,Jiang L,Fan Y,Liu Y,Wang D,Abudula A,Song Y

更新日期：2017-06-01 00:00:00