View clinical trials related to Ultrasound.
Filter by:Ultrasound is one of the most important tools in pregnancy both for its diagnostic capacity, but also because it is not invasive. For physiological pregnancy, the Italian guidelines provide for the execution of 3 ultrasounds: one in the first trimester (between 11 and 14 weeks), one in the second trimester (between 20 and 22 weeks) and one in the third (between 30 and 36 weeks). weeks). Screening for cardiac abnormalities is done during second trimester ultrasound, also called structural ultrasound. However, the development of three-dimensional (3D) sonography has represented a dramatic shift in obstetrics as it allows for the acquisition of a volume of data rather than conventional planar or 2D scans. This method has allowed considerable progress in the study of the fetus in the initial stages of development and has opened new windows in the knowledge of anatomical malformations at an early age. The possibility of detecting structural anomalies already during the first trimester of pregnancy allows, in fact, to provide the patient with additional time for counseling and for any genetic tests.
The aim of this prospective randomized trial is to compare the efficacy ultrasound guided thoracolumbar interfascial plane block versus bilateral ultrasound guided erector spinae plane block for post-operative pain management after lumbar laminectomy
This study will compare the current standard of care post reduction plain film x ray for confirmation of shoulder reduction to point of care ultrasound. Patients will receive both the current standard of care post reduction x ray and point of care ultrasound to act as their own comparators
Sonazoid as a new generation of ultrasound contrast agent.This study based on the features of Sonazoid specific angiography and his mechanical index, the role of Sonazoidin in the differential diagnosis of benign and malignant focal liver lesions in different liver background was explored
Spasticity of stroke patient, a very common complication in clinical practice, affects performance of hand function and gait pattern. It also interferes with quality of life of patients severely. Currently first line clinical approach to spasticity consist of physical therapy and pharmacological management. However, there are still some refractory cases that needed local intervention such as Botox injection. So far, we only can use subjective methods to measure muscle tension, such as modified Ashworth scale and Tone Assessment Scale. In our previous study, we found that ultrasound shear wave image could correlate with muscle stiffness caused by poststroke spasticity. With this new method, we aim to establish a more objective method in measuring abnormal poststroke muscle tension before and after treatments and further monitor therapeutic effect. We also include several assessment scales to evaluate the correlation between measured muscle spasm and activity of daily living. We hypothesize that the rheological changes in muscles muscle spasm after Botox injection can be detected by ultrasound shear wave image. Therapeutic effect can also be seen in its effect on daily functions. In this project, we will use shear wave imaging of ultrasound to investigate the elasticity (and hardness) of the biceps brachii and brachialis muscle in stroke patients with unilateral hemiplegia before and after Botox injection. The findings of this project will provide the objective evaluation of muscle spasticity and its correlation with functional status, which will provide new points of view toward treatment of spasticity.
The peak inspiratory pressure during face mask ventilation for general anesthesia is closely correlated with gastric insufflation. High pressure increases the amount of air in stomach and low pressure could decrease the tidal volume, therefore ideal pressure means the pressure guarantee adequate ventilation with minimal gastric insufflation. The aim of this study is finding the proper pressure and mode of face mask ventilation in pediatric patients.
The achievement of peripheral nerve block requires several needle passes, with each of them being at risk of causing nerve injury either by direct trauma or intraneural injection even with the use of the ultrasound. The ultrasound guided supraclavicular brachial plexus block is known to be at risk of pneumothorax and / or nerve injury. This study is designed to determine the maximal effective distance away from the nerve for the injection to be effective.