View clinical trials related to Image, Body.
Filter by:In this study, motor control exercises including cervical region, upper extremity and scapular region muscles will be applied routinely in individuals with chronic neck pain. The application will been investigating, called motor imagery training, will been carried out together with motor control exercises.
To establish a deep learning system of various ocular fundus disease analytics based on the results of multimodal examination images. The system can analyze multimodal ocular fundus images, make diagnoses and generate corresponding reports.
Feasibility of structural and functional imaging of the middle ear and its constituents by optical coherence tomography.
This pilot study aims to monitor early tumour response based on [18F]FLT-PET/MRI scans and to determine the feasibility of personalised radiotherapy to spare active bone marrow areas identified by [18F]FLT-PET/MRI. Bone marrow within the pelvis will be outlined by employing 18FLT PET to identify active BM within bony structures. Subsequently, treatment plans with various conformal radiotherapy techniques will be generated with different optimization approaches toward bone marrow while ensuring adequate tumor coverage. Dosimetric comparison amongst plans will be carried out.
Atherosclerosis can cause the arteries to narrow (stenosis) or clog (occlude), leading to reduced blood flow. Arteriography or angiography is a radiological examination of the arteries which will make it possible to confirm and quantify the severity of the damage to the artery and which, in certain cases, can be directly treated by angioplasty with or without stenting (selective angioplasty). Digital subtraction angiography (DSA), the reference technique, provides good image quality. The fluoroscopy used today during angioplasty procedures makes it possible to obtain images in real time and to guide the progression of the endovascular material in the arterial axis. Image fusion is an established technique for the endovascular treatment of aortic aneurysms. The feasibility of image fusion for the iliac arterial axes has already been assessed and is reproducible. However, there is no assessment of the irradiation rate in iliac angioplasty, using intraoperative image fusion, compared to standard angioplasty practices.
The investigators aim to implement an innovative imaging tool for detection of sodium level changes in-vivo with a clinical magnetic resonance (MR) scanner system. Conventionally, MR imaging (MRI) is performed with the use of proton imaging. Nevertheless, detection of other nuclei such as sodium (23Na) are possible with dedicated radio frequency sequences and radio frequency antennas tuned to the lower radio frequency of sodium. Non-invasive detection of sodium level changes has great potential as a precursor of organ deficiency and possible organ failure. This project seeks to determine a robust method for detection and characterization of sodium levels with MRI. The sodium levels of the kidneys are known to change throughout the day. Therefore, an evaluation of the kidney circadian sodium level variation is performed. In the proposed project, the investigators will scan two groups divided into two separate studies: Healthy controls for optimization of imaging (n = 5, scanned twice) Healthy controls for comparison of circadian variation (n = 10, scanned triple on one day) Sodium MRI could greatly improve the understanding and diagnostic capabilities of several medical conditions. If successful, the proposed project will serve as the groundwork for future clinical studies.
Patients and healthy volunteers will be scanned in order to test new sequences.
Patients receiving a point-of-care ultrasound will be randomized into a portable, handheld device or a traditional cart-based ultrasound machine to compare diagnostic capability.
The injury and remodeling mechanism about upper extremity motor network after stroke is not clear. There are few studies on the motor network covering cortex, white matter and blood perfusion at the time. Some studies have shown that metal imagery activates the cortex through active mental simulation. Our previous study has shown that passive application of transcranial direct current stimulation causes subthreshold polarization and promotes the effective integration of residual brain high-level network. This study proposes a hypothesis: transcranial Direct Current Stimulation + Motor Imagery combines active and passive neuromodulation techniques to produce dual channel effect, which can synergistically excite motor cortex, remodel the motor network and optimize cerebral perfusion. The research contents include clarify the effect of transcranial Direct Current Stimulation + Motor Imagery neuromodulation therapy through comprehensive randomized controlled trial study; present the process of brain injury and secondary neural plasticity through the motor network construction, functional connectivity strength and cerebral perfusion with Blood Oxygen Level Dependent, Diffusion Tensor Imaging and Arterial Spin Labeling multimodal magnetic resonance technology; calculate the correlation between motor score and brain functional network, extract the key nodes that can promote the motor network remodeling. The research results are expected to provide preliminary theoretical foundations for further research on the injury and remodeling mechanism about upper extremity motor network after stroke.
Utilizing existing data from CT/MRI images of patients, the investigators wish to develop an algorithm for augmenting the image obtained by ultrasound. In order to improved injection by ultrasound guidance