نتایج جستجو برای: gadolinium dtpa

تعداد نتایج: 13816  

Journal: :AJR. American journal of roentgenology 1984
H J Weinmann R C Brasch W R Press G E Wesbey

Chelation of the rare-earth element gadolinium (Gd) with diethylenetriaminepentaacetic acid (DTPA) results in a strongly paramagnetic, stable complex that is well tolerated in animals. The strongly paramagnetic gadolinium complex reduces hydrogen-proton relaxation times even in low concentrations (less than 0.01 mmol/L). The pharmacokinetic behavior of intravenously delivered Gd-DTPA is similar...

Journal: :iranian journal of radiology 0
mahmood nazarpoor department of radiology, faculty of paramedicine, tabriz university of medical sciences, iran +98-4113368733, [email protected]; department of radiology, faculty of paramedicine, tabriz university of medical sciences, iran +98-4113368733, [email protected] masoud poureisa department of radiology, faculty of medicine, tabriz university of medical sciences, iran mohammad hossein daghighi department of radiology, faculty of medicine, tabriz university of medical sciences, iran

conclusion using standard imaging parameters, each mri sequence reaches its maximum si in a specific contrast concentration, which is highest in se and least in ir in a comparison between se, fse and ir sequences. results this study shows that maximum si will appear at different ranges in different sequences. the maximum si can be seen at concentrations of 5.95, 4.96 and 3.98mmol/l for se, fse ...

Daryoush Shahbazi-Gahrouei, Mariam Roufeh, Mohammad Bagher Tavakoli,

Background: The monoclonal antibody, C595, against breast cancer cell line was conjugated with cyclic anhydride gadolinium-diethylenetriaminepenta-acetic acid (Gd-cDTPAa) to produce Gd-DTPA-C595 and used as specific breast cancer cell line (MCF-7) contrast agents in magnetic resonance imaging (MRI).  Methods: After incubation of breast cancer cell line (MCF-7), with different contrast agents (G...

Journal: :iranian biomedical journal 0
داریوش شهبازی گهرویی daryoush shahbazi-gahrouei مریم روفه mariam roufeh محمد باقر توکلی mohammad bagher tavakoli

background: the monoclonal antibody, c595, against breast cancer cell line was conjugated with cyclic anhydride gadolinium-diethylenetriaminepenta-acetic acid (gd-cdtpaa) to produce gd-dtpa-c595 and used as specific breast cancer cell line (mcf-7) contrast agents in magnetic resonance imaging (mri).  methods: after incubation of breast cancer cell line (mcf-7), with different contrast agents (g...

Journal: :Chemical & pharmaceutical bulletin 1999
H Tokumitsu H Ichikawa Y Fukumori L H Block

Biodegradable gadopentetic acid (Gd-DTPA)-loaded chitosan microparticles (Gd-microCPs) were prepared as a device for gadolinium neutron-capture therapy (Gd-NCT) by a novel emulsion-droplet coalescence technique: a water-in-oil (w/o) emulsion A containing chitosan and Gd-DTPA in droplets and a w/o emulsion B containing NaOH in droplets were mixed and stirred to solidify chitosan as a result of c...

2011
Mi-Jung Lee Myung-Joon Kim Choon-Sik Yoon Si Young Song Kyungsoo Park Woo Sun Kim

OBJECTIVE Clear depiction of the common bile duct is important when evaluating neonatal cholestasis in order to differentiate biliary atresia from other diseases. During MR cholangiopancreatography, the T2-shortening effect of gadolinium can increase the contrast-to-noise ratio (CNR) of the bile duct and enhance its depiction. The purpose of this study was to confirm, by performing a phantom st...

Journal: :AJNR. American journal of neuroradiology 1987
H P Niendorf M Laniado W Semmler W Schörner R Felix

Eleven patients with intracranial tumors were investigated with MR imaging at different dose levels of gadolinium-DTPA to determine a safe and effective dose for imaging intracranial tumors. The patients were divided into two groups. Baseline spin-echo images were obtained with a repetition time of 800 msec and an echo time of 35 msec, and a total of 0.1 mmol of gadolinium-DTPA/kg (six patients...

Journal: :AJNR. American journal of neuroradiology 1987
C Hecht-Leavitt R I Grossman W J Curran J T McGrath D N Biery P M Joseph D F Nelson

Two of six cats receiving small-field, single-dose, brain irradiation of 35 Gy with 6 MeV photons developed brain abnormalities in the irradiated area on MR images at 6 and 8 months, respectively, after treatment. The lesions were of high intensity on T2-weighted images and did not enhance after IV administration of gadolinium-DTPA. An additional lesion in one of these cats displayed high signa...

Journal: :Magnetic Resonance in Medical Sciences 2023

Purpose: To elucidate MRI features of primary hepatic mucosa-associated lymphoid tissue (MALT) lymphoma, particularly, the “speckled enhancement” on gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI.

Journal: :Chemical & pharmaceutical bulletin 2012
Keizo Takeshita Shota Kinoshita Shoko Okazaki

To develop an estimation method of gadolinium magnetic resonance imaging (MRI) contrast agents, the effect of concentration of Gd compounds on the ESR spectrum of nitroxyl radical was examined. A solution of either 4-oxo-2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPONE) or 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPOL) was mixed with a solution of Gd compound and the ESR spectrum was reco...

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