View clinical trials related to Ultrasonography.
Filter by:The study is aimed at evaluating whether ultrasound pre-procedural scan with Accuro may reduce needle redirections when performing spinal injection in patients with BMI = or > 30 in orthopedic surgery
This study will be a randomized controlled study comparing the use of two clinical management strategies in nephrostomy tube management following percutaneous nephrolithotomy (PCNL). The first strategy entails using contrast-enhanced ultrasound (CEUS) to evaluate the renal collecting system (1). This is a new imaging approach applying ultrasound machines with special software in combination with intraluminal ultrasound contrast agent (Lumason) injection, which is an FDA-approved ultrasound contrast agent (2). The second strategy is a nephrostomy tube capping trial combined with low dose non-contrast computed tomography (CT) scan, one of the most frequently utilized clinical management strategies currently used in clinical practice (3).
Mammography is considered the standard imaging method for breast cancer screening, and is known to result in reduced mortality from breast cancer. However, the diagnostic yield of mammography depends particularly on breast tissue density, with sensitivity as low as 30-48% in dense-breast women. Ultrasound is an attractive adjunct imaging method to mammography as it is widely accessible, relatively inexpensive and well-tolerated by patients. The addition of hand-held ultrasound to mammography has been demonstrated to significantly increase breast cancer detection in women with dense breasts. It is however dependent on the expertise and skill of the operator. In recent years, the FDA has approved the use of the automated breast ultrasound (ABUS) for use in screening of women with dense breast. Unlike handheld ultrasound, the ABUS is relatively simple to use, necessitating less technical training, and results in higher reproducibility. The research aim is to evaluation of automated breast ultrasound (ABUS) regarding the detection and classification of breast lesions, compared to hand-held ultrasound, according to the American College of Radiology Breast Imaging-Reporting and Data System (BI-RADS) classification. The investigator will also evaluate parameters regarding patients' comfort, workflow, and duration of image interpretation.
The idea of this work came during a carotid surgery, when we noticed a respiratory variation of the right internal jugular vein. Also, because of the interest of evaluating the preload dependence during an intervention or reanimation where it is difficult to access the other monitoring methods . The aim of the study was to test the hypothesis that respiratory changes in right internal jugular vein diameter are similar to respiratory changes in superior and inferior vena cava in mechanically ventilated patients and therefore help to predict fluid responsiveness.
Ultrasound (US)-guided central venous catheterization is now considered standard of care according to recent clinical evidence, at least considering jugular vein approach. Recent trials suggested that even US-guided subclavian approach could be more effective that landmark technique. However, studies comparing both sites employing US are still lacking. We, therefore, designed a non-inferiority randomized controlled trial to compare these sites, both using US guidance, according to immediate complications following central venous catheterization.
A wide number of osteopathic techniques focusing on diaphragm have been proposed but, although systematically and efficiently used, there is a general lack of evidences able to clarify how and to which extent osteopathic manipulative treatment (OMT) on diaphragm is effective and determines a modification in muscles contractility and motion as well as an objective determination of the benefit on the patients receiving treatment. This study therefore aims at investigating whether, and how, a single session of selected osteopathic diaphragmatic techniques are able to affect muscle motility and thickness, assessed by ultrasounds, in a sample of healthy subjects and to compare results versus a group receiving a sham therapy and another one of non-treated subjects.
Central venous catheter placement is a common procedure in the intensive care unit and is a required skill for all residents working in the critical care setting. Central venous catheters (CVC) are placed for a variety of reasons including administration of caustic medications, administration of fluids or blood products for rapid resuscitation, access for hemodynamic monitoring or transvenous pacing, temporary vascular access for dialysis, or inability to obtain peripheral IV access. CVC's are routinely placed in the internal jugular vein in the Vanderbilt medical ICU and ultrasound guidance is used. Placement of the CVC on the right IJ instead of the left IJ is commonly preferred due to the more direct path to the superior vena cava. However, placement in the left IJ may be necessary for a variety of reasons. The investigators intend to compare the standard practice of residents and nurse practitioners placing IJ CVCs in the medical ICU against mandatory screening of the right and left IJ prior to selection of the CVC placement site. The investigators will accomplish this by assessing the relative first pass stick and overall success rates, the rate of aborted procedures, and the rate of complications between standard practice and mandatory screening of bilateral internal jugular veins prior to CVC site selection.
The purpose of this investigation is to conduct a randomized, patient-blinded prospective controlled trial comparing peripheral intravenous cannulation in children done by: 1. Conventional landmark cannulation where the intravenous cannulation is done by direct visual guidance or palpation or a combination thereof. 2. Ultrasound guided cannulation by means of DNTP. The investigators hypothesize that with ultrasound-guided peripheral intravenous cannulation the first-attempt success rate will be significantly higher than by the conventional landmark cannulation technique.
Investigators hypothesized that perioperative lung ultrasound would be beneficial in pediatric patients undergoing cardiac surgery compared to those who did not receive lung ultrasound.
This study explores the effect of a four-hour ultrasound course on physicians' point-of-care ultrasound performance on patients representing acute abdominal surgical conditions.