View clinical trials related to Image, Body.
Filter by: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.
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.
Patients and healthy volunteers will be scanned in order to test new sequences.
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
This prospective cohort study enrolls subjects who experience carbon monoxide (CO) poisoning. The purpose of the study is to evaluate therapeutic effects of various treatments and short and long-term outcomes in CO poisoned patients. In addition, complications of brain and heart susceptible to CO are investigated through various ways and the association between complications and the patient's prognosis is also investigated. All subjects will be regularly monitored by physicians participating in this study.
This study was planned to investigate the validity and reliability of the Kinesthetic and Visual Imagery Questionnaire in patients with acute stroke. The objectives of the research are: 1. To evaluate the validity of the Kinesthetic and Visual Imaginery Questionnaire in acute stroke patients aged 50-75 years 2. To evaluate the test-retest reliability of the Kinesthetic and Visual Imaginery Questionnaire in acute stroke patients aged 50-75 years