View clinical trials related to Diagnoses Disease.
Filter by:A novel methodology was recently developed and validated by the applicants to compute bone strength at the distal radius and tibia using second-generation HR-pQCT reconstructions. The methodology is expected to improve significantly the assessment of bone fracture risk in idiopathic and secondary osteoporosis, but no reference data and no reproducibility data are available. The objective of the study is the determination of the sex- and age-specific distributions of accurate distal radius and tibia strength assessed by HR-pQCT in the Swiss population.
Breast-cancer related lymphoedema (BCRL) is a common phenomenon. Early diagnosis and treatment is very important to alter the normal progression of this disease. A threshold (>= 3% volume change) that recognizes subclinical lymphedema is promoted. When the lymphedema is diagnosed late, options for treatment are diminished as fibrous tissue is formed. Preoperative investigation with near-infrared fluorescence lymphography can show an abnormality. Even if a linear transport is visualized, velocity of the transport can be diminished or a different pathway than normal can be visualized. Such an extensive evaluation has not been performed yet. This lymphofluoroscopy gives an opportunity to detect lymphedema earlier than clinically visible (subclinical). The investigators hypothesize that the evolution of lymphedema can be altered if treatment is started in the subclinical phase.
This study evaluates the biomarkers CA125 and HE4 and the algorithms RMI and ROMA on a normal population in the western region of Sweden. The aim is to improve diagnosis of ovarian cancer. If the investigators observe a clear improvement in the early diagnosis of EOC, the investigators aim to implement the best strategy for all patients with suspected pelvic tumor mass in the western region of Sweden.
To Assess the Utility of Impulse Oscillometry on a Differential Diagnosis among the Patients with ACOS,asthma and COPD over Age 40.
Targeted therapy with bevacizumab is the main method to prolong the progression-free survival of patients with recurrent malignant gliomas in recent years. Using noninvasive imaging methods to predict which RMG may respond to bevacizumab regimen therapy is a clinical problem ; on the other hand, repeated gadolinium enhancement may increase the risk of gadolinium ion deposition of brain tissue. Furthermore,there may be a false response phenomenon and cause assessment bias.in the evaluation of treatment efficacy,owing to bevacizumab is only anti-tumor angiogenesis. Amide Proton Transfer (APT) is a new molecular imaging technique. Our previous studies have shown that imaging features and signal changes of APT can fully reflect the therapeutic effect of malignant glioma,without the injection of contrast agent and avoid the side effects. RMG patients will be recruited in this study . This project will be designed multi-center, prospective, observational clinical research. The changes of APT signal intensity before and after treatment will be compared with those of different types of RMG line. The relationship between APT imaging characteristics and clinical end point events will be investigated and compared with conventional MR imaging technique. The sensitivity, specificity and accuracy of the progression-free survival and median overall survival will be measured after treatment with bevacizumab.
This is a cross-sectional and multicentre clinical trial to study the performance of the Histidine Rich Protein 2 (HRP2) highly sensitive rapid diagnostic test (HS-RDT) for the detection of malaria during pregnancy in low transmission settings from Colombia and Indonesia. The new HS-RDT will be compared with conventional good quality RDTs, microscopy, and NAATs [loop-mediated isothermal amplification (LAMP), nested PCR (nPCR)], in peripheral blood samples with quantitative reverse transcription PCR (qRT-PCR) as reference standard.
This is an observational diagnostic study that aims to evaluate the diagnostic value of circRNA-Uck2 in Acute Myocardial Infarction (AMI) in adults as compared to healthy and unstable angina controls. Rapid and adequate diagnosis of AMI is of great importance to enable a rapid start of treatment, save large tracts of dying myocardium, reduce the infarct size,and thereby decrease the risk of subsequent heart failure.
The principal aim of the study is to avoid the diagnostic wanderings of patients suffering from a peroxisomal disorder. For this purpose, a new diagnostic strategy is proposed. It rests on functional metabolic explorations and gene studies directly connected to a first-line enlarged physico-chemical detection of metabolites from peroxisomal origin in clinically suspect patients.
This study used a pre post intervention mixed methods quasi-experimental design with a group of health facilities offering antenatal care (ANC) services (primary health centers in rural area) as the sampling units. This study was conducted in three phases, which consisted of a situational analysis using qualitative methods (Phase 1), selecting an appropriate test through evaluating 4 candidate tests and the participatory design and implementation of an intervention that included onsite training, provision of supplies and medicines, quality control and supervision (Phase 2), and an evaluation combining review of record tools, interviews, time motion study and estimating incremental costs (Phase 3). The conceptual framework draws on multilevel assessment (MLA), policy triangle framework, Medical Research Council framework for designing complex interventions and the Normalization Process Model (NPM). Methods included document review, seventy five interviews were conducted with health providers, district managers, facility managers, traditional healers, pregnant women, community health workers, and Non-Governmental Organizations (NGO) managers in phase I and fourteen in phase III, non-participant observation, time-motion study, incremental cost analysis, and sensitivity, specificity and ease of use analysis of four candidate point-of care tests. Data were collected between 2012 and 2014. Qualitative data were analyzed through thematic analysis supported by Nvivo software. Quantitative data were analyzed through descriptive statistics such as frequency, mean and median supported by SPSS. Phase I identified barriers to implementation and uptake of syphilis testing at health provider and community levels. The most important barriers at provider level included fragmentation of services, poor communication between health workers and clients, failure to prescribe syphilis test, and low awareness of syphilis burden. Cost of testing, distance to laboratory and lack of knowledge about syphilis were identified as barriers at community level. Phase II: Alere DetermineTM Syphilis was the most sensitive of the four point-of-care tests evaluated. The components of the intervention were successfully implemented in the selected health facilities. Overall, phase III showed that it is feasible and acceptable to introduce a point of care test for syphilis in antenatal care services at primary health care level using the available staff. The findings suggested that an intervention that introduces point of care test for syphilis at antenatal care services is feasible, acceptable, and of comparable costs to HIV screening in pregnancy. Nonetheless, instructions and supervision need to be clearer to achieve optimal levels of screening and quality control, and barriers identified by health workers need to be overcome. The point-of care test for syphilis is likely to be acceptable by health workers as a routine service and incorporated as a normal practice in Burkina Faso context.
assess diagnostic performance of 3-Tesla DW-MRI in detecting and staging bladder cancer and potential role of the ADC value as a biomarker reflecting histological grade and stage.