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Ultrasonography clinical trials

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NCT ID: NCT06265311 Recruiting - Ultrasonography Clinical Trials

IDUS in CBD Stone Recurrence High Risk Patients

Start date: November 2, 2021
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT06255808 Recruiting - Breast Cancer Clinical Trials

Development of Assist Tool for Breast Examination Using the Principle of Ultrasonic Sensor

Start date: October 5, 2022
Phase:
Study type: Observational

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.

NCT ID: NCT06171828 Recruiting - Telemedicine Clinical Trials

Tele-education in Ultrasound Training

Start date: November 15, 2023
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT06068647 Recruiting - Clinical trials for Chronic Obstructive Pulmonary Disease

Ultrasound and Respiratory Physiological Signals in Lung Diseases

SAURON
Start date: March 22, 2023
Phase: N/A
Study type: Interventional

The use of lung ultrasound is instrumental in the evaluation of many chest pathologies and its ability to detect pleuro-pulmonary pathology is widely accepted. However, the use of ultrasound to explore the state of the peripheral lung parenchyma, when the organ is still aerated, is a relatively new application. Horizontal and vertical artifacts are separate and distinct artifacts that can be seen during ultrasound examination of the lungs. While the practical role of lung ultrasound artifacts is accepted to detect and monitor many conditions, further research is needed for the physical interpretation of ultrasound artifacts. These artifacts are diagnostic signs, but we don't fully understand their origin. The artifactual information deriving from the surface acoustic interaction, beyond the pleural line, in the ultrasound images of the normally aerated and non-deflated lung, represents the final result of complex interactions of acoustic waves with a specific three-dimensional structure of the biological tissue. Thus, the umbrella term "vertical artifacts" oversimplifies many physical phenomena associated with a pathological pleural plane. There is growing evidence that vertical artifacts are caused by physiological and pathological changes in the superficial lung parenchyma. Therefore, the need emerges to explore the physical phenomena underlying the artifactual ultrasound information deriving from the surface acoustic interaction of ultrasound with the pleuro-pulmonary structures.

NCT ID: NCT06060639 Recruiting - Anemia Clinical Trials

Variation of Echocardiographic Parameters After Red Blood Cell Transfusion in Emergency Department Anemic Patients

Trans-US
Start date: November 9, 2023
Phase: N/A
Study type: Interventional

The goal of this interventional study is to asses echocardiographic variations in emergency department's elderly patients receiving red blood cell transfusion. The main questions it aims to answer are : - is there a modification of echocardiographic parameters after red blood cell transfusion ? - which parameter is the most impacted by red blood cell transfusion ? Participants will have a transthoracic echocardiography before, just after and 15 minutes after red blood cell transfusion.

NCT ID: NCT06015061 Recruiting - Ultrasonography Clinical Trials

Prediction and Evaluation of Anlotinib Treatment Response Using Contrast Enhanced Ultrasound PPGL Patients

Start date: March 1, 2023
Phase:
Study type: Observational

Anlotinib is a multi-target receptor tyrosine kinase inhibitor (TKI) targeting tumor angiogenesis and growth. The purpose of this study is to evaluate the efficiency of contrast enhanced ultrasound in assessing effectiveness of anlotinib in patients with locally advanced, metastatic, or unresectable pheochromocytoma or paraganglioma(PPGL).

NCT ID: NCT05729737 Recruiting - Pancreatic Cancer Clinical Trials

Radiographic Response to Chemotherapy in Unresected Localized Pancreatic Cancer

Start date: January 1, 2022
Phase:
Study type: Observational [Patient Registry]

The goal of this observational study is to explore whether contrast-enhanced ultrasound (CEUS) can early predict and evaluate the treatment response of first-line chemotherapy in locally advanced and borderline resectable pancreatic cancers. The main questions it aims to answer are: Question 1: What quantitative parameters of CEUS performed before first-line chemotherapy can predict the early treatment response of patients with locally pancreatic cancer?Question 2: Can CEUS reflect early neovascular changes after first-line chemotherapy in pancreatic tumors? Participants will receive CEUS examination carried out by experienced operators before the first cycle of chemotherapy and after 2 treatment cycles.

NCT ID: NCT05294757 Recruiting - Sarcopenia Clinical Trials

Development of Continuous Assessment of Frailty and Muscle Quality in Older Subjects: ECOFRAIL Protocol

ECOFRAIL
Start date: March 1, 2022
Phase: N/A
Study type: Interventional

We are conducting a study in different centers in Spain in elderly people, in order to assess the effectiveness of a physical exercise intervention program in people in a situation of frailty. Frailty in an elderly person is a situation in which, although there are no major differences in their usual abilities, the person presents a certain decrease in their capacities. This slight decrease is usually accompanied by a progressive deterioration.

NCT ID: NCT05224895 Recruiting - Ultrasonography Clinical Trials

The Effect of Trendelenburg Position on the Ultrasonographic Airway Measurements

Start date: February 15, 2022
Phase:
Study type: Observational

The aim of this study is to compare the changes in upper airway edema with the preoperative and postoperative ultrasonographic measurements of patients who undergo pobotic prostatectomy in the trendelenburg position. The secondary aim is to investigate the correlation between OSAS risk levels determined by the STOP-BANG score in the preoperative period of the patients participating in the study airway ultrasound measurements and postoperative critical respiratory events in the preoperative and postoperative period.

NCT ID: NCT05209711 Recruiting - Nerve Block Clinical Trials

Femoral Nerve Blockade 7.5 ml of 1% Lidocaine: US Guidance Versus US Guidance With Electrical Stimulation of Peripheral Nerves (Influence of the Femoral Nerve Blockade on the Effectiveness of Small Doses of Local Anesthetic.). (EPBwEPN)

Start date: February 1, 2022
Phase: N/A
Study type: Interventional

In modern anesthesiology, peripheral nerve blocks are performed using ultrasound control and electrical stimulation of peripheral nerves (PEN), or only ultrasound control or only EPN. The most effective methods are with the use of ultrasound control. Until now, the effectiveness of the femoral nerve blockade, performed only under ultrasound control without EPN, in comparison with the blockade of the femoral nerve performed under ultrasound control with EPN, has not been established. There is no data on how the effectiveness of the blockade of the femoral nerve with small doses of lidocaine is influenced by the method of performing the blockade: under ultrasound control versus ultrasound control with electrostimulation of the nerve. Research hypothesis: the blockade of the femoral nerve (7.5 ml 1%lidocaine -Minimum Effective Dose - previously established ) performed only under ultrasound control has the same effectiveness as the blockade performed under the ultrasound control with EPN.