View clinical trials related to Ultrasound.
Filter by:The nerve blocks applied with ultrasonography are used for pain and operation after many operations today. Applications with ultrasonography shorten the processing time, reduce the amount of local anesthetic used and lead to fewer complications. However, the use of ultrasonography is not so common in neuraxial regional anesthesia applications. In the literature, epidural applications accompanied by ultrasonography were applied with different approaches.
Cricothyroid membrane (CTM) localization is a critical step prior to emergent surgical airway access. Ultrasound-guided localization of the CTM on the skin of the neck had been suggested prior to induction of general anesthesia so that a marked entry point can be used to quickly establish emergent front of neck access if required. In this prospective observational study, the investigators aim to determine the potential for migration of the CTM markings in the sagittal plane during neck repositioning.
Acute hypoxemic respiratory failure due to parenchymal disfunction is one of the main complications of immunocompromised hematological patients. Mechanical ventilation is frequently needed and diaphragm activity has to be assessed not to worsen ventilator-induced lung injury.
Point-of care-ultrasonography has the potential to transform healthcare delivery through its diagnostic and therapeutic utility. Its use has become more widespread across a variety of clinical settings as more investigations have demonstrated its impact on patient care. This includes the use of point-of-care ultrasound by trainees, who are now utilizing this technology as part of their diagnostic assessments of patients. However, there are few studies that examine how efficiently trainees can learn point-of-care ultrasound and which training methods are more effective. The primary objective of this study is to assess whether handheld ultrasound devices, along with a year-long lecture series, improve internal medicine interns' knowledge and image interpretation skills with point-of-care ultrasound. Participants shall be randomized to receive personal access to handheld ultrasound devices to be used for learning vs. no personal access. The primary outcome will assess their interpretive ability with ultrasound images/videos. Secondary outcomes will include rates of device usage and lecture attendance.
The objective of this study is: (1) to investigate the correlation of ultrasound parameters (SW speed, Dispersion slope, Attenuation value, Normalized Local Variance, Liver / Kidney Intensity Ratio) with the pathological parameters (fibrosis, intralobular inflammation, ballooning degeneration and steatosis); (2) to evaluate the diagnostic performance of SW speed for liver fibrosis, Dispersion slope for intralobular inflammation and Attenuation value for steatosis by comparison with the tissue diagnosis by liver biopsy.
Based on the ultrasound measurement of CSF/spinal cord ratio in neonates the investigators plan to define a normal range of CSF volume for 0-7 day old newborns. The investigators hypothise to be able to create an ultrasound measurement index/number to predict unsuccessful neonatalal LPs.
Endovascular abdominal aortic aneurysm repair (EVAR) aims to reduce the risk of aneurysm (AAA) rupture by reducing the blood pressure transmitted to the wall of the aneurysm. Aneurysms that remain pressurized despite EVAR may continue to grow, therefore requiring additional surgical interventions. The purpose of this study is to infer the reduction of pressure transmitted to the aneurysm wall by using intraoperative ultrasound ('M-Mode') to assess the pulsatility of the aneurysm wall. The hypothesis is that intraoperative reduction in aneurysm wall pulsatility after EVAR will correlate with improved aneurysm sac size reduction.
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 investigators hypothesize that sub-mental ultrasonography measures are strongly correlated with the severity of Obstructive Sleep Apnea Syndrome and the related specific subjective scales.
This study evaluates if trainees can accurately rule out dilation of the renal collecting system on ultrasound (hydronephrosis) using hand-carried ultrasound (HCU). Trainees will undergo a short ultrasound training program. Patients will be adults that are hospitalized and have acute or subacute kidney dysfunction. The investigators will assess sensitivity, specificity, positive and negative predictive value of HCU compared to radiology performed ultrasound, and calculate potential cost savings to the patient and to the healthcare system.