Zobrazeno 1 - 10
of 45
pro vyhledávání: '"C A, Mistretta"'
Publikováno v:
Magnetic resonance in medicine. 44(6)
Cardiac MRI function measurements are typically performed using 2D sequences and require multiple breath-holds to image the entire heart. A single 3D acquisition using a T(1)-shortening agent has many potential advantages over techniques that acquire
Publikováno v:
Magnetic resonance in medicine. 44(5)
A method that determines the information necessary to reconstruct a single vascular image from a time-resolved CE-MRA exam is presented. Raw k-space data are used to approximate the time course of the contrast passage prior to image reconstruction. T
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 12(3)
The purpose of this study was to investigate the effect on three-dimensional (3D) magnetic resonance digital subtraction angiography (MR DSA) images of various injection protocol parameters (ie, injection order, volume, and rate), as well as image ma
Publikováno v:
Magnetic resonance in medicine. 43(4)
MR phase-contrast techniques provide velocity-sensitive angiograms and quantitative flow measurements but require long scan times. Recently it has been shown that undersampled projection reconstruction can acquire higher resolution per unit time than
Publikováno v:
Magnetic resonance in medicine. 43(2)
In time-resolved contrast-enhanced 3D MR angiography, spatial resolution is traded for high temporal resolution. A hybrid method is presented that attempts to reduce this tradeoff in two of the spatial dimensions. It combines an undersampled projecti
Publikováno v:
Magnetic resonance in medicine. 43(1)
Undersampled projection reconstruction (PR) is investigated as an alternative method for MRA (MR angiography). In conventional 3D Fourier transform (FT) MRA, resolution in the phase-encoding direction is proportional to acquisition time. Since the PR
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 10(3)
With contrast-enhanced MR angiographic techniques, a T1-shortening contrast agent is injected into the blood stream. Imaging during the first pass of the contrast agent permits acquisition of a high-contrast MR angiogram. Scan parameters such as flip
Autor:
F R, Korosec, C A, Mistretta
Publikováno v:
Magnetic resonance imaging clinics of North America. 6(2)
The most commonly used MR angiography techniques are categorized as time-of-flight, phase-contrast, or contrast-enhanced methods. When the basic principles of the various MR angiographic methods are understood, the techniques can be used to achieve h
Publikováno v:
Wisconsin medical journal. 96(5)
Publikováno v:
The Journal of comparative neurology. 377(3)
Taste buds on the mammalian tongue are confined to the epithelium of three types of gustatory papillae: the fungiform, circumvallate, and foliate. The gustatory papillae are composed of an epithelium that covers a broad connective tissue core, with e