Results 181 to 190 of about 98,210 (227)

1H T1 and T2 measurements of the MR imaging contrast agents Gd-DTPA and Gd-DTPA BMA at 1.5T

European Radiology, 1997
We report in vitro T1 and T2 relaxation studies for the open-chain complexes Gd-DTPA and Gd-DTPA BMA. Measurements were performed on phantoms containing aqueous and plasma solutions of different concentrations by MR imaging in a 1.5T superconducting whole-body scanner.
J R, Reichenbach, T, Hackländer, T, Harth, M, Hofer, M, Rassek, U, Mödder   +5 more
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3D-MR-Angiographie mit Gd-DTPA

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, 1990
Projection angiograms similar to DSA can be obtained via 3D-gradient echo techniques by subtraction of data sets acquired before and after the intravenous administration of Gd-DTPA (0.1-0.2 mmol/kg body weight). As Gd-DTPA does not penetrate the blood-brain barrier, image subtraction results in complete cancellation of non vascular tissue.
Seiderer, M., Bauer, W., Villringer, A. ; https://orcid.org/0000-0003-2604-2404, Einhaeupl, K.   +3 more
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[A comparative study of Gd-DTPA and HSA-Gd-DTPA in magnetic resonance lymphography].

Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2010
To compare the effects of two contrast agents, Gd-DTPA and HSA-Gd-DTPA, in magnetic resonance (MR) lymphography.Twelve New-Zealand rabbits were randomized into Gd-DTPA and HSA-Gd-DTPA groups with subcutaneous (interdigital skin fold) injection of the two contrast agents (0.2 ml of 0.5 mmol/L Gd(3+)) for MR lymphography of the popliteal lymph nodes ...
Yuan-Kui, Wu, Ting-Song, Fang, Da-Chao, Chen, Guo-Qing, Liu, Yi-Kai, Xu   +4 more
openaire   +1 more source

Gd-DTPA as a contrast agent in CT.

Radiology, 1989
An evaluation was done of the effect of gadolinium diethylenetriaminepentaacetic acid (DTPA) on computed tomographic (CT) studies performed after magnetic resonance (MR) imaging. CT scans of two solutions of Gd-DTPA demonstrated substantial attenuation.
J L, Bloem, J, Wondergem
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Pseudolayering of Gd-DTPA in the urinary bladder.

Radiology, 1990
When excreted gadolinium diethylenetriaminepentaacetic acid (DTPA) collects in the bladder of a supine patient during magnetic resonance (MR) imaging, a puzzling pattern of signal intensities is noted. A gradual change in urine signal intensity with progressive addition of Gd-DTPA does not occur; instead, three sharply defined "layers" are seen both on
A D, Elster, W T, Sobol, W H, Hinson
openaire   +2 more sources

Contrast enhanced high resolution MRI of cutaneous melanomas using Gd‐DTPA and Gd‐DTPA‐polylysine: experimental results

Skin Research and Technology, 1998
Background/aims: An experimental model for the preclinical evaluation of contrast enhancement patterns in melanoma was developed.Methods: Melanotic and amelanotic tumor cells B16F1 and B16a implanted into murine skin were depicted with magnetic resonance imaging (MRI) at a pixel size of 78×78 urn and 1 mm slice thickness.
J, Mäurer, F D, Knollmann, C, Veuskens, W, Ebert, H, Bauer, R, Felix   +5 more
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Comparison of Initial Biodistribution Patterns of Gd-DTPA and Albumin-(Gd-DTPA) Using Rapid Spin Echo MR Imaging

Journal of Computer Assisted Tomography, 1987
The initial biodistribution patterns of gadolinium-diethylenetriaminepentaacetic acid (Gd-DTPA), an extracellular fluid contrast agent, and human serum albumin, paramagnetically labeled with 19 Gd-DTPA groups and used as an intravascular agent, were compared in the brain, heart, liver, and major mediastinal vessels of rats.
U, Schmiedl, M E, Moseley, M D, Ogan, W M, Chew, R C, Brasch   +4 more
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Subtracted Synthetic Images in Gd-DTPA Enhanced MR

Journal of Computer Assisted Tomography, 1989
The evaluation of Gd-DTPA contrast enhancement (CE) in high intensity tissues on T1-weighted magnetic resonance images, such as fat and bone marrow, is quite difficult. In this study, we used subtraction and subtracted color images in an attempt to show more clearly the Gd-DTPA CE.
Y, Suto, B E, Caner, Y, Tamagawa, T, Matsuda, I, Kimura, H, Kimura, T, Toyama, Y, Ishii   +7 more
openaire   +2 more sources

MR Imaging with Gd-DTPA in Leptomeningeal Spread of Lymphoma

Journal of Computer Assisted Tomography, 1988
We describe the magnetic resonance (MR) plus Gd-diethylenetriamine pentaacetic acid (DTPA) findings in a patient with leptomeningeal spread of lymphoma. Gadolinium-DTPA aided in the diagnosis by offering additional information after noncontrast MR. Magnetic resonance with Gd-DTPA may well prove to be an important adjunct in the work-up of patients ...
D H, Berns, S, Blaser, J S, Ross, T J, Masaryk, M T, Modic   +4 more
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Synergistic Enhancement of MRI with Gd-DTPA and Magnetization Transfer

Journal of Computer Assisted Tomography, 1992
Magnetization transfer (MT) between protons of macromolecules and protons of water molecules is a recently introduced mechanism for tissue contrast in MR imaging. The MT effect is strong in tissues where there is an efficient cross relaxation between macromolecular protons and water protons and where this interaction is the dominant source of ...
J I, Tanttu, R E, Sepponen, M J, Lipton, T, Kuusela   +3 more
openaire   +2 more sources