View clinical trials related to Magnetic Resonance Imaging.
Filter by:Introduction: Native magnetic resonance angiography (MRA) is recommended to assess the thoracic aorta during pregnancy, avoiding the risks of ionising radiation and contrast agent administration. This guidance is however, based only on consensus opinion supported by limited case reports (level of evidence C). Aim: To evaluate the feasibility of performing native 3D steady-state free-precession (SSFP) MRA in pregnant subjects with inherited aortopathy to guide timing and mode of delivery.
Structural lung and airway alterations in CF lead to focal or heterogeneous abnormalities in regional lung ventilation. The quantitative assessment of structural and functional alterations in the lung is of great importance for the phenotyping and follow-up of CF patients. The goal of this study is to assess the feasibility of measuring the changes in proton density in the lung parenchyma with inflation and deflation during the respiratory cycle, using ultrashort echo time (UTE) pulse sequence MRI, in healthy adult volunteers.
The purpose of this study is to evaluate the thoracic skin to epidural space depth in children and define the ratio between the straight and inclined thoracic skin to epidural depth.
Study Objectives Primary: To determine MTD and dose limiting toxicities (DLTs) of IOP magnetic resonance imaging (MRI) contrast agent in healthy subjects. Secondary: 1. To characterize the pharmacokinetic profiles of IOP MRI contrast agent in healthy subjects. 2. To evaluate safety/tolerability profiles of IOP MRI contrast agent in healthy subjects. 3. To explore efficacy profiles of IOP MRI contrast agent for liver organ in healthy subjects.
Acute myocarditis is a serious illness affecting a young population with a very variable course (of full recovery at the onset of dilated cardiomyopathy (DCM), or even sudden death). Very few studies have examined the predictors of death and serious cardiovascular events in acute myocarditis and have carried on numbers of restricted patients. What little data results in a lack of a precise recommendation on the management and the follow-up period of patients. This observational study should identify serious prognostic factor for cardiovascular events in order to provide a support strategy and more appropriate monitoring of myocarditis.
The purpose of this research study is to examine the effects of two commonly used anesthetic drugs, dexmedetomidine and ketamine, have on the shape and muscle tone of the upper airway in children, adolescents, and young adults. The results of this study will help in making the best decisions regarding the anesthesia medications used for sedation outside of the operating room.
The objective of this study is to collect data to confirm the safety and effectiveness of the Image Ready™ MR (Magnetic Resonance) Conditional Defibrillation System when used in the 1.5T (Tesla) MRI environment under the labeled Conditions of Use (Phase I). Additionally, the study will assess medically necessary MR scans according to the labeled Conditions of Use to provide real-world scanning data (Phase I and Phase II).The study also aims to demonstrate the continued ability of the ImageReady MR Conditional Defibrillation System to sense and detect ventricular fibrillation (VF) post MRI scan by collecting and analyzing data from spontaneous VF episodes, "for-cause" VF inductions, and from an optional VF induction Sub-study. .
The mYPAS (Modified Yale Preoperative Anxiety Scale) is a quick, easy, validated and "gold standard" assessment tool to measure pediatric anxiety in the perioperative period. Therefore the objective of the current prospective study is examine if the mY-PAS is an effective screening tool to differentiate patients who would succeed versus fail for MRI without sedation/anesthesia.
The purpose of this prospective study is to investigate the degree of association between the volume of important pain-relevant structures in the brain and the size of the areas of secondary hyperalgesia.
The objectives of this study are to investigate the safety and effectiveness of Gadovist.