View clinical trials related to Diagnoses Disease.
Filter by:Evaluation of the performance of an in vitro test, the STANDARDTM F TB LAM Ag FIA (SD BIOSENSOR, INC.) for the early diagnosis of tuberculosis (TB) infection. This test is for in vitro professional diagnostic use and intended as an aid to early diagnosis of tuberculosis infection. The test will be used according to the instructions for use (IFU).
Nearly 10,000 people die each year in the United Kingdom from cancer of the lower gullet and stomach, known as known as oesophago- gastric adenocarcinoma (OGC). OGC is detected late as symptoms are non- specific and often mistaken for common problems such as heartburn. This translates to fewer than 2 in every 10 patients diagnosed with OGC living longer than 5 years. The breath of people with OGC is enriched with volatile chemicals (VOCs) that indicate cancer. When measured in a breath test, it detects OAC 80 out of 100 times. Whilst encouraging, there is scope to improve the detection rate by giving patients a stimulant drink that amplifies the production of tumour specific VOCs only, to increase their detection in the breath test. The goal of this observational study is to produce an enhanced second-generation breath test with superior ability to detect OGC through augmentation of breath. This will improve long term survival from cancer using an entirely non- invasive test. All participants (cancer and control participants) will consume an oral stimulant drink (OSD) and provide breath samples pre and post consumption of the drink at set time points (maximum 2 hours after consumption of the drink). The investigators will compare the breath VOCs from both groups, before and after consumption of the OSD to see if the OSD has a desired augmentation effect and can improve the accuracy of the OGC breath test. With this second-generation breath test, participants with vague symptoms can undergo a quick, non- invasive test, have samples analysed in a safe and accurate manner and be subsequently stratified based on their risk of having OGC, leading to earlier disease detection and improved clinical outcomes.
Recent studies showed that the value of c100A12 increased in children with Kawasaki disease, and decreased rapidly after treatment with gamma globulin. In kawasaki disease with coronary artery dilatation, S100A12 levels are elevated in the acute phase of Kawasaki disease and continue for some time in the convalescence phase before gradually decreasing. However, the number of patients included in previous studies was small and the follow-up time was short. In this study, 100 children with Kawasaki disease who were admitted to Wuhan Children's Hospital, Jingzhou First People's Hospital and Renhe Hospital affiliated to China Three Gorges University from December 2021 to December 2023 were selected as the research objects, and 100 children with healthy physical examination were selected as the control group during the same period. To investigate whether S100A12 increased significantly in the acute phase of Kawasaki disease compared with a healthy control group. To study whether S100A12 value increased rather than decreased in kawasaki disease that did not respond to gamma globulin treatment after gamma globulin treatment. At the same time, to study whether the increase of S100A12 in kawasaki disease convalescence indicates coronary aneurysm.
Decontextualised risk information is any information pertaining to diagnosis, which is introduced into a clinical consultation, or a diagnostic thought process, without being requested by the clinician. It can be risk scores, computerised warnings, or lab tests or diagnostic imaging requests ordered by other clinicians. It is a concept which (to our knowledge) has not been studied. Clinical vignettes have been developed to simulate scenarios where decontextualised risk is introduced into a consultation. These will be presented to primary care clinicians via video, who will then undergo a structured interview to explore how their perception, processing and communication of risk is challenged and changed by decontextualised risk. The findings will be analysed used qualitative methods (Thematic Analysis).
The investigators aim will be to compare the diagnostic performance of clinical visual examination (ICDAS II), intraoral/bite wing radiography (BW), near infrared light transillumination (NIR-LT), and laser fluorescence (LF), in comparison to microcomputed tomography (micro-CT) for the detection of non-cavitated occlusal enamel and dentin caries in third molar teeth. Potential participants will be consecutively recruited.
To evaluate the diagnostic performance of quantitative ultrasound parameters for assessing hepatic steatosis in non-alcoholic fatty liver disease using histologic results as reference standard
The purpose of this study is to compare the diagnosis accuracy between of wet suction (WS) technique and standard negative pressure (SNP) technique in EUS-FNB by 22G EUS Procore fine needle biopsy（FNB）device for solid pancreatic lesions.
Using Laser light to detect COVID 19 virus particles in deep throat swab / nasal swab samples.
This study aims at evaluating the diagnosis performances of the LTS-2 DEC patch for onchocerciasis compared to the gold standard which are the skin snips. This study will be conducted in Cameroon in two different areas : Ngog-Mapubi and Bafia Health Districts (one area only endemic for onchocerciasis, and one area endemic for both loiasis and onchocerciasis).
Early diagnoses of malignant tumors are pivotal for improving their prognoses. The Exhaled Breath is made up of oxygen, carbon dioxide, nitrogen, water, inert gases and volatile organic compounds (VOCs). Theoretically, the concentration of VOCs in exhalation produced by metabolism in human body is only about nmol/L-pmol/L, which can significantly increase under certain pathological conditions. A series of studies of VOCs diagnosing solid tumors the investigators had been conducted in the past decade. It was found that VOCs in exhaled breath can not only distinguish different types of tumors, but also can make a clear distinction between different stages. Our long-term collaborator, Professor Hossam Haick (Israel Institute of Technology) has developed a nano sensor array, so called Na-nose, which can detect VOCs of the exhaled breath by binding gases to specific chemiresistors coated with gold nanomaterials. The Na-nose has the advantages of low cost, easy to use, good reproducibility and real-time detection for large scale clinical application. This study was to use large clinical samples to validate the diagnostic efficacy of the newly developed Nano-nose( Sniffphone and Breath Screener) for malignant tumors .