Found 64,920 clinical trials
Transthoracic Shear-wave Ultrasound Elastography
This study aims to provide the information of tissue elasticity in different etiologies of pulmonary lesions and to validate the predictive value of shear-wave elastography in differentiating benign pulmonary lesions from malignant lesions.
Dedinje FFR/QFR Registry
Quantitative Flow Ratio (QFR) has shown good diagnostic performance against Fractional Flow Reserve (FFR) in several meta-analyses, comparable or even superior to nonhyperemic pressure ratios. However, the reproducibility of QFR is modest and there is high interand intra-observer variability even when fairly experienced but non-core lab operators (at least 150 …
Application of CTA-based Radiomic Phenotyping of PCAT and Fluid Dynamics in Atherosclerotic Disease (APPLE)
This study (APPLE study) intends to retrospectively enroll more than 2000 patients who who underwent ≥2 coronary computed tomography angiography (CCTA) with ≥3 months interval from 11 hospitals in more than 4 provinces in China.
Mycobacteria Registry Study: Prospective Observational Study in Austria
The goal of this non-interventional registry study is to systematically collect epidemiological and clinical data throughout the treatment course to learn about effectiveness of treatments. We will document the natural course of therapy without additional interventions. The main question to answer is: What are the risk factors for mortality due …
Study to Understand Novel Biomarkers in Researching Dementia
The purpose of this study is to determine the relationships between amyloid, tau, and neurodegeneration biomarkers in the blood and the presence of Alzheimer's disease (AD) pathology, clinical cognitive decline, and diagnosis. We aim to understand how well blood-based biomarkers can diagnose and predict Alzheimer's disease, which will help to …
Adolescent Outcomes of Post-operative Opioid EXposure
The goal of this observational study is to examine the factors associated with the transition from medical exposure to opioids with "signposts" of future opioid use disorder among adolescent surgical patients. The main question aims to identify factors (moderators, mediators, and covariates) associated with risk factors for opioid use disorder …
The French Gut-colo
Colorectal cancer (CRC) is the second most common type of cancer worldwide. The European Union recommends national CRC screening for people aged between 50 and 74. Generally, an immunological test called FIT (Fecal Immunochemical Test), based on the quantitative detection of human haemoglobin, is performed on a stool sample. If …
Data Collection and Professional Simulated Use Study to Develop an Embryo Quality Artificial Intelligence (AI) Model
This protocol supports the reliable development and improvement of Artificial Intelligence (AI)-based applications by enabling training, verification, and validation using high-quality real clinical data. It also aims to enhance machine learning in developmental-use AI software. In addition, the professional user simulated use will ensure correct and easy use of the …
Neuropsychiatric Research Databases for People With Intellectual Disabilities and Epilepsy (REFINE)
This study consists of two parts: Part One: De-identified Database The goal of this part is to establish a research database containing de-identified data about People with Intellectual Disabilities (PwID) and epilepsy, collected from three NHS sites across England and Wales. Researchers will gather information from participants' medical records, including …
Observational Epidemiological Study of Patients Suffering From Systemic Amyloidosis
observational epidemiological study of patients affected by systemic amyloidosis
