Gadolinium Dtpa
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. Extracellular diffusion quantified by magnetic resonance imaging during rat C6 glioma cell progression
Solution reflux and edema hamper the convection-enhanced delivery of the standard treatment for glioma. Therefore, a real-time magnetic resonance imaging (MRI) method was developed to monitor the dosing process, but a quantitative analysis of local diffusion and clearance parameters has not been assessed. The objective of this study was to compare diffusion
Braz J Med Biol Res. Publicado em: 03/07/2017
-
2. Analysis of the effect of the paramagnetic contrast in the amplitude and width of the metabolite peaks using multivoxel spectroscopy in patients with intracranial tumors / "Estudo do efeito do contraste paramagnético na amplitude e largura dos picos dos metabólitos na espectroscopia com múltiplos volumes de interesse em pacientes com tumores intracranianos"
In order to evaluate the gadolinium effect on the metabolites choline (CHO), creatine (CRE) and N-acetyl-aspartate (NAA) we performed multivoxel spectroscopy in 25 patients with intracranial tumors before and after the injection of the contrast material. The metabolite ratios CHO/CRE, CHO/NAA and NAA/CRE and the peak width at half height of the metabolites w
Publicado em: 2005
-
3. Selective modification of NMR relaxation time in human colorectal carcinoma by using gadolinium-diethylenetriaminepentaacetic acid conjugated with monoclonal antibody 19-9.
Monoclonal antibody 19-9 (mAb 19-9) against human colon adenocarcinoma was conjugated with gadolinium X diethylenetriaminepentaacetic acid (Gd X DTPA) and used as a contrast agent in nuclear magnetic resonance (NMR) in an effort to improve tumor target selectivity in nude mice. The data indicate that Gd X DTPA-mAb 19-9 in solution decreased the T1 relaxation
-
4. Diagnostic significance of gadolinium-DTPA (diethylenetriamine penta-acetic acid) enhanced magnetic resonance imaging in thrombolytic treatment for acute myocardial infarction: its potential in assessing reperfusion.
The diagnostic value of gadolinium-DTPA (diethylenetriamine penta-acetic acid) enhanced magnetic resonance imaging in patients treated by thrombolysis for acute myocardial infarction was assessed in 27 consecutive patients who had a first acute myocardial infarction (14 anterior, 13 inferior) and who underwent thrombolytic treatment and coronary arteriograph
-
5. Comparison of triple dose versus standard dose gadolinium-DTPA for detection of MRI enhancing lesions in patients with primary progressive multiple sclerosis.
This study was performed to evaluate whether a triple dose of gadolinium-DTPA (Gd-DTPA) increases the sensitivity of brain MRI for detecting enhancing lesions in patients with primary progressive multiple sclerosis (PPMS). T1 weighted brain MRI was obtained for 10 patients with PPMS in two sessions. In the first session, one scan was obtained five to seven m
-
6. Application of gadolinium-DTPA magnetic resonance imaging for detection of a filum terminale myxopapillary ependymoma allowing successful surgical resection.
-
7. Gadolinium-DTPA enhanced magnetic resonance imaging of bone cysts in patients with rheumatoid arthritis.
OBJECTIVES--To examine the contents of intraosseous cysts in patients with rheumatoid arthritis (RA) through the signal intensity characteristics on gadolinium-DTPA (Gd-DTPA) enhanced magnetic resonance imaging. METHODS--The hand or foot joints of nine patients with the cystic form of RA (where the initial radiological abnormality consisted of intraosseous c
-
8. Triple dose of gadolinium-DTPA and delayed MRI in patients with benign multiple sclerosis.
OBJECTIVES--To evaluate whether a triple dose of gadolinium-DTPA (Gd-DTPA) or delayed MRI increase the number, size, and conspicuousness of enhancing lesions in patients with benign multiple sclerosis. METHODS--T1 weighted brain MRI was carried out on 20 patients with benign multiple sclerosis (expanded disability status scale < 3 with a disease duration > 1
-
9. Neurosarcoidosis--demonstration of meningeal disease by gadolinium enhanced magnetic resonance imaging.
Arriving at a firm diagnosis of neurosarcoidosis continues to pose serious problems, particularly when evidence of granulomatous disease outside the nervous system is lacking. The commonest mode of presentation of neurosarcoidosis is with cranial nerve palsies. Two cases of presumed neurosarcoidosis with cranial nerve palsies showed clear evidence of focal m
-
10. Magnetic Resonance Imaging of Myocardial Fibrosis in Hypertrophic Cardiomyopathy
Myocardial fibrosis can occur in patients who have hypertrophic cardiomyopathy in the absence of epicardial coronary disease. In such patients, myocardial fibrosis has been linked to a poorer prognosis than in those without fibrosis. Gadolinium-DTPA delayed-enhancement magnetic resonance imaging (de-MRI) accurately identifies regions of myocardial fibrosis.
-
11. The relative safety of MRI contrast agent in acute necrotizing pancreatitis.
OBJECTIVE: To validate the safety of gadolinium-diethylenetriamine pentaacetic acid (GD-DTPA) by measuring its effect on pancreatic capillary perfusion and acinar injury in acute pancreatitis. BACKGROUND: Contrast-enhanced computed tomography (CECT) is proposed as a gold standard for early evaluation of acute necrotizing pancreatitis. However, iodinated cont
-
12. High dose steroids in acute relapses of multiple sclerosis: MRI evidence for a possible mechanism of therapeutic effect.
The integrity of the blood-brain barrier (BBB) in multiple sclerosis (MS) was monitored by serial gadolinium-(Gd)-DTPA enhanced MRI during and after the treatment of acute relapses with a three day course of high dose intravenous methylprednisolone (IVMP). During treatment there was a rapid reduction of BBB abnormalities in 96% of enhancing lesions. In spite