View clinical trials related to Diagnosis.
Filter by:The aim of this exploratory study is to further investigate the potential of acoustic emission biomarkers, assessed by the inmodi knee brace, to diagnose osteoarthritis (OA) at earlier stages. Therefore, 20 healthy participants and 100 patients with increased risk of knee OA will be recruited from the Schulthess Klinik in Zurich and examined twice with 9 ± 3 months' time interval. Anthropometric data, EOS radiographs and MR images of both knees, PROMs and acoustic emission data will be collected and evaluated. Artificial Intelligence algorithm will then be used to identify and validate the most promising acoustic emission biomarkers with a prognosis value in the prediction of knee osteoarthritis progress.
In the study, the investigators obtained gastric cancer tissues from 480 gastric cancer patients who had undergone surgery at the Zhejiang Cancer Hospital's biospecimen bank between 2012-2019, and obtained relevant clinical information. The gastric cancer tissues were subjected to transcriptomic, metabolomic and other multi-omics testing, and analyzed for the metabolic changes of gastric cancer, and proposed to discover relevant therapeutic targets.
The increasing incidence of actinic keratosis (AK), morbus Bowen (MB) and cutaneous squamous cell carcinoma (cSCC), the patients with often multiple lesions and the disadvantages of invasive diagnostics show the need for an accurate non-invasive diagnostic tool for the determination of invasive growth in AK and MB. Optical coherence tomography (OCT) is a non-invasive scanner creating cross-sectional images of the skin, to a depth of 1-1,5 mm based on light waves. Until now, OCT has been proposed as non-invasive diagnostic tool for basal cell carcinomas. Although the diagnostic value of OCT for detection and sub-typing of basal cell carcinomas has already been demonstrated, it is unclear whether OCT can discriminate between invasive and non-invasive lesions (AK, MB and cSCCs). There are some studies that describe OCT characteristics of AK, MB and cSCCs, however, these characteristics have a lot of overlap (8-13). To date there are no clearly distinctive OCT features to distinguish between AK, MB and cSCCs. This study aims to investigate the value of OCT in discriminating between the presence and absence of invasion in lesions with clinical suspicion for invasion. Two experienced OCT-assessors will evaluate the OCT scans independently. The OCT assessors are blinded to the histological diagnosis of the lesions (invasive or non-invasive), which is used as golden standard. A 5-point Likert scale is used for OCT assessment. 1. Definitely not invasive 2. Probably not invasive 3. Unknown, probably invasive/probably not invasive 4. Probably invasive 5. Definitely invasive In addition to completing the Likert-scale, assessors are asked to describe the presence/absence of predefined OCT characteristics (a.o. hyperkeratosis and the presence of the dermo-epidermal junction) In case of disagreement between the independent assessors, the OCT scan will be re-assessed in a consensus meeting.
The goal of this clinical trial is to promote lung cancer screening (LCS) uptake among Hispanic current and former smokers. The main questions it aims to answer are: - What barriers do current and former Hispanic smokers face in the identification and documentation of their smoking status? - How can digital delivery of an educational video promote LCS uptake among current and former Hispanic smokers? Participants will receive an educational video about lung cancer screening and complete brief, self-reported surveys afterwards.
Acute heart failure is a life-threatening condition where the heart is suddenly unable to pump blood around the body. It can be challenging to diagnose because the symptoms often mimic other conditions. Previous studies have showed that delays in making the correct diagnosis result in worse outcomes. We therefore developed a decision-support tool called CoDE-HF that uses a computer algorithm to combine levels of a blood test called NT-proBNP with patient factors to calculate the probability of acute heart failure for an individual. In this project, we wish to evaluate the performance of CoDE-HF in approximately 2,000 patients attending the Emergency Department with suspected acute heart failure. We will store surplus material from their blood tests to measure NT-proBNP and link information from their electronic health records with other routinely collected medical information in regional and national databases in order to evaluate this algorithm.
Detect the contents of glucose metabolism molecules in the tumor and adjacent normal samples of about 100 patients with lung adenocarcinoma using mass spectroscopy. Analyze the correlation between the contents and the clinicopathological characteristics and survival.
This study is to evaluate the ability of a newly designed device, Optic Nerve Glass (O-Glass) to detect relative afferent pupillary defect (RAPD). In this prospective observational study, 44 patients (diagnosed RAPD- positive) enrolled the study. Three groups of masked examiners observed patients for an RAPD by swinging flashlight method (SFM) and O-Glass. The instrument captured and recorded eye pictures. The images were processed and analyzed using computerized software to calculate pupillary measurements. The results were compared between two methods and three different groups of examiners. Twenty six patients were known cases of multiple sclerosis related optic neuritis, fourteen of them had glaucoma and four patients had history of traumatic optic neuropathy. The mean age (SD) of the study participants (18 female and 26 male) was 35. All three groups of examiners were satisfactory with successful diagnosis by O-Glass. Conclusion: O-Glass is a simple eye-glass along with mobile friendly software that any care giver can use to perform the tests to identify a RAPD automatically and rapidly. The ability to store and archive the objective and quantifiable results for referencing and follow-ups, makes the device more valuable.