View clinical trials related to Magnetic Resonance Imaging.
Filter by:On the basis of previous research, this subject intends to evaluate the liver improvement of patients with liver disease after weight loss by MRI, and quantify it by extracting features, so as to provide a new method to judge the liver status of patients with liver disease, and to evaluate the correlation between the inflammatory status of patients and the quantitative features of MRI, and try to explain the reasons for the improvement of fatty liver status of patients with liver disease after weight loss. To provide a new theoretical basis for fatty liver and systemic inflammatory liver damage in patients with liver disease after weight loss surgery, and to link them, and try to explain the improvement of fatty liver in patients with liver disease through the reduction of systemic inflammatory level.
This is a prospective, randomized, open-label, active drug controlled clinical trial that aims to compare the effects of henagliflozin or metformin on myocardial tissue level characteristics in type 2 diabetes patients with obesity. Eligible subjects with type 2 diabetes before randomisation and fulfilling all of the inclusion criteria and none of the exclusion criteria will be randomised in a 1:1 ratio to henagliflozin 10 mg once a day or metformin 1000 mg twice a day and treated for 24 weeks. The study includes five visits.
This is an open-label, single-center, single-dose study aims to evaluate the effect and safety of polymeric superparamagnetic iron oxide in cardiovascular magnetic resonance imaging for diabetic patients with concomitant chronic kidney disease.
This study prospectively included 178 patients with bladder neoplastic lesions who planned to undergo surgery (with or without preoperative neoadjuvant chemotherapy). Inclusion criteria: Patients with pathologically confirmed bladder cancer after radical or partial cystectomy or TURBT (< 2 weeks between surgical resection and imaging). Exclusion criteria: 1) Prior history of chemotherapy and/or radiotherapy; 2) No surgical resection; 3) The interval between surgical resection and imaging examination is > 2 weeks; 4) Obvious artifacts; 5)MRI scan contraindications. All subjects underwent pelvic MRI. Data was collected using a Siemens VIDA 3TMR scanner (Siemens Healthcare, Erlangen, Germany). All subjects underwent standardized scanning protocols. The obtained images are post-processed and the experimental results are analyzed statistically.
To investigate the intervention effect of transcranial alternating current stimulation(tACS) on anxiety symptoms and somatic symptoms in patients with anxiety disorder and its underlying neural mechanism by MRI.
This is a contrast-enhanced magnetic resonance imaging (MRI) study conducted on a single-administration of polyglucose superparamagnetic iron oxide injection. Two dose groups are set up in this study, 2.5 mg/kg and 3 mg/kg, and two subjects in each group received the test drug for safety evaluation.
The goal of the current project is to explore and develop the technical feasibility of non-invasive imaging of the human musculoskeletal system and head with the first 7T MR scanner with a CE mark to identify areas where the higher field promises significant benefits in qualitative image quality. For a subset of the planned exams, state-of-the art 7T or 3T images will be used as standard of reference to comparatively gauge the qualitative image quality of the investigational 7T images.
The goal of this study is to investigate children with aortic and pulmonary valve disease treated or untreated longitudinally. Established CMR measures with additional newly developped, promising, highly refined and clinically applicable quantitative imaging biomarkers, will be utilized as compared to the conventional CMR estimates. The main question[s] it aims to answer are: - [question 1]To evaluate risk stratification for surgery and intervention of the aortic- and pulmonary valve - [question 2]Investigate the cardiac and vascular hemodynamic and morphological changes before and after interventional or surgical treatment of the aortic- and pulmonary valve at short and long term. Participants will undergo cardiac MRI before and after interventional or surgical treatment of the aortic or pulmonary valve Researchers will compare MRI data to an age matched control group established at the department in another study.
The goal of this observational study is to explore the application of temporal diffusion spectroscopy MRI in head and neck squamous cell carcinoma (HNSCC). The main questions it aims to answer are: - If the quantitative parameters of temporal diffusion spectroscopy MRI can predict the comprehensive positive score (CPS) of pathological PD-L1 expression in HNSCC? - If the quantitative parameters of temporal diffusion spectroscopy MRI can predict the efficacy of neoadjuvant therapy in HNSCC? Participants will receive head and neck MRI, including T2WI, T1WI, diffusion-weighted imaging (DWI), oscillating gradient spin echo (OGSE) and pulsed gradient spin echo (PGSE) sequence before and after neoadjuvant therapy. There is not a comparison group in our study.
How to optimally stimulate the developing brain is still unclear. Executive functions (EF) exhibited substantially stronger far transfer effects in children who learned to play a musical instrument than in children who acquired other arts. What is crucially lacking is a large-scale, long-term genuine randomized controlled trial (RCT) in cognitive neuroscience, comparing musical instrumental training (MIP) to another art form and a control group. Collected data of this proposal will allow, using machine learning, to build a data-driven multivariate model of children's interconnected brain and EF development over the first 2 years of their academic curriculum (6-8 years), with or without music or other art training.