View clinical trials related to Ultrasonography.
Filter by:The goal of this clinical trial is to test the performance of neuronal networks trained on ultrasonic raw Data (=radiofrequency data) for the assessment of liver diseases in patients undergoing a clinical ultrasound examination. The general feasibility is currently evaluated in a retrospective cohort. The main questions the study aims to answer are: - Can a neuronal network trained on RF Data perform equally good as elastography in the assessment of diffuse liver diseases? - Can a neuronal network trained on RF Data perform better than a neuronal network trained on b-mode images in the assessment of diffuse liver diseases? - Can a neuronal network trained on RF Data distinguish focal pathologies in the liver from healthy tissue? To answer these questions participants with a clinically indicated fibroscan will undergo: - a clinical elastography in Case ob suspected diffuse liver disease - a reliable ground truth (if normal ultrasound is not sufficient e.g. contrast enhanced ultrasound, biopsy, MRI or CT) in case of focal liver diseases, depending on the standard routine of the participating center - a clinical ultrasound examination during which b-mode images and the corresponding RF-Data sets are captured
Lower respiratory tract infections (LRTIs) are one of the most common reasons for consultation in Primary Care centres. Differentiating between viral and bacterial aetiologies can be challenging, leading to inappropriate antibiotic prescribing. Lung ultrasound (LUS), an imaging test that gained particular relevance since the beginning of the SARS-CoV-2 pandemic, offers several advantages over the classic chest X-ray in detecting and monitoring LRTIs, especially when pleural involvement exists. This study aims to correlate LUS findings with capillary blood C-Reactive Protein (CRP) values in patients with LRTIs, evaluating LUS as a diagnostic tool and its impact on therapeutic decisions. The descriptive observational study, conducted from January 2024 to December 2026 in Lleida, will include LRTI patients attending Primary Care centres. By validating LUS as a rapid and non-invasive diagnostic tool, unnecessary antibiotic prescriptions can be reduced, promoting LUS as a complementary test in Primary Care consultations. This will facilitate appropriate diagnosis and treatment decisions for patients with LRTIs, enhancing the overall management of respiratory infections.
The objective of this observational study is to identify maternal and fetal characteristics that impact image quality in prenatal ultrasonography. The investigators have assembled a retrospective cohort of 198 patients, each contributing three ultrasound images taken between 18 and 18 weeks and 6 days of gestation. For each image, the investigators assess the quality of two distinct elements as well as the overall image through both subjective and objective evaluations. The primary questions the study seeks to address are: What maternal and fetal characteristics influence image quality in prenatal ultrasonography?
The goal of this observational study is to determine whether the subjective assessment of the quality of obstetrical ultrasonography pictures can be similar to that of an objective tool. The main question it aims to answer is: Is the subjective assessment of the quality of obstetrical ultrasonography pictures by a young practitioner and an experienced one can be similar to that of an objective tool, such as the contrast-to-noise ratio (CNR)? The contrast-to-noise ratio is commonly used in radiology to evaluate image quality by assessing the ability to distinguish differences between two elements. The investigators selected a retrospective cohort of 198 patients, including three pictures per fetus screened between 18 and 18 weeks and 6 days. For each picture, the investigators assessed the quality of two different elements and the entire image, and then calculated the CNR using software. The investigators will compare the three assessment between them
This study is designed to observed CBD stones cases with high recurrence risks applying IDUS or not during ERCP. Patients with CBD stone high recurrence risks were enrolled in this study, and prospectively randomized into IUDS group and control group during lithotomy. Operation time, radiation time, hospitalization cost, retain of nasobiliary tube, deployment of stent were recorded. Symptoms and conditions after ERCP were also followed up including blood amylase, routine blood test, abdominal pain, post-ERCP pancreatitis, resection of gallbladder, recurrence of CBD stone and onset of cholangitis.
This projects aim is to study the effects of substitute conventional chest x-ray with lung ultrasound for patients undergoing thoracic surgery. Participants in the study will be randomized to either ultrasound or routine chest x-ray as the primary method of diagnosis after having received surgery to their lungs.
The accuracy of breast examinations and ultrasonography performed clinically to detect breast mass varies greatly depending on the physician's skill level, and the accuracy of breast examinations by non-experts is particularly low. In this study, we aimed to validate whether the concurrent use of ultrasound sensor technology is an efficient strategy for the purpose of improving the sensitivity of detecting breast masses through breast examination.
Urinary incontinence, commonly observed among women aged 30 to 60, encompasses Stress Urinary Incontinence (SUI), responsible for the majority of cases. This condition significantly affects the quality of life, influencing physical, emotional, and sexual aspects. Severe cases impact libido and cause vaginal dryness, affecting not just sexual function but also relationships, leading to an overall decline in quality of life. Hence, examining sexual functions in those affected by SUI holds significance. The study aimed to evaluate the impact of mesh-urethra distance on sexual functions using perineal ultrasound in continent patients post-transobturator tape (TOT) surgery for isolated SUI. Patients achieving continence post-surgery were categorized based on the distance from the posterior of the urethra at the bladder neck to the nearest proximal edge of the tape: < 5 mm and > 5 mm. Questionnaires, including the Female Sexual Function Index (FSFI) and The Incontinence Questionnaire Urinary Incontinence Short Form (ICIQ-UI SF), were administered preoperatively and at the 6-month postoperative follow-up.
The goal of this clinical trial is to compare the effects of modern remote health intervention regime with traditional in-person intervention strategies for high-risk breast cancer groups that with BI-RADS 3 or higher nodules. The main questions it aims to answer are: - Can the remote health intervention be more effective in slowing down the progression of breast nodules than the traditional in-person intervention? - Can the remote health intervention be more effective in minimizing the deterioration of the disease and reducing the risk of death in patients than the traditional in-person intervention? - Can the knowledge, belief and behavioral change of breast nodule population improve after receiving remote health intervention compared with traditional health management model? Participants will be divided into 2 groups, the Experimental group and the Control group. Participants in the Experimental group will be offered with modern remote interventions for 2 years, as describe below: - Teleconsultations: This involves using video calls, or phone calls once a month to connect patients for consultations, follow-ups, and discussions about conditions and symptom management. - Remote Monitoring and Wearable Devices: Wearable devices and remote monitoring tools like Infrared Breast Temperature Detector and Dynamic blood pressure detector will be used once a week to track patients' vital signs and symptoms remotely. - Mobile Applications: Specialized mobile apps will be used to provide a platform for patients to access educational materials, track their progress, manage management schedules, record symptoms, and connect with support groups or online communities. - Educational Platforms and Remote Health Education: Online platforms and resources provide educational materials about breast cancer, treatment options, potential side effects, lifestyle adjustments, and overall wellness. These resources empower patients by providing comprehensive information. Participants in the Control group will be offered with traditional strategies provided in the 'Breast Cancer Screening Guideline for Chinese Women': Ultrasound follow-up review is recommended no less than 3 to 6 months later. If there is no change at 2-year follow-up, it can be downgraded to BI-RADS 2; if there is suspicious change in the lesion during follow-up, biopsy should be considered to clarify the nature of the pathology.
The study aims to assess the impact of remote guidance in ultrasound training for medical professionals new to abdominal ultrasound. It involves 40 participants, divided into two groups of 20 each - a self-study group and a remote learning group. Participants include licensed doctors with no prior training in abdominal ultrasound, who are over 18 years old and have consented to participate.