View clinical trials related to Ultrasound.
Filter by:The primary objective is to compare the success of the inferior alveolar nerve block using ultrasound versus a traditional landmarking technique (which historically has an approximate failure rate as high as 33.8%). The secondary objective is to demonstrate that delivering a block under ultrasound guidance does not cause any additional pain to patients, as well as to reconfirm data shown in a previous study that the intra-oral transducer is well-tolerated among patients.
Objective: To estimate the value of uterine, fetal cerebral Doppler and oligohydramnios to predict abnormal fetal heart rate tracings in pregnancies at or beyond 41 weeks
Ultrasound (US)-guided transversus abdominis plane block (TAP) has demonstrated favourable results in lower abdominal surgery. Literature about its efficacy in breast reconstruction surgery with transversus rectus abdominis myocutaneous (TRAM) flap is still scarce. In the current study investigators pretend to evaluate the efficacy of US-guided bilateral TAP block for unilateral breast reconstruction using autologous abdominal graft in women with breast cancer's history.
Aim is to investigate the difference in number of attempts to place neuraxial block comparing handheld ultrasound versus use of palpation alone for women with impalpable bony landmarks undergoing spinal anesthesia for elective cesarean delivery.
The overall purpose of this study is to establish an ultrasound technique to aid in oral and dental examination of soft and hard tissues. Ultrasound is currently not used in Dentistry and associated oral examinations and its usefulness for clinical practice will be explored. This study will investigate the use of ultrasonic imaging for planning and placing dental implants, as well as evaluate the use of ultrasonic imaging for monitoring marginal bone loss around dental implants.
Pulmonary complications are frequent in cardiac surgery, representing an important cause of morbidity, prolongation of hospital stay and need for repeated examinations.Chest X-rays are done routinely and even multiple times to detect such complications.Lung ultrasonography is an alternative test to detect pulmonary complications that can be done easily on bedside. Regularly done Chest X-ray exposes patient to ionizing radiation which can be reduced with ultrasonography. Lung ultrasound is gaining popularity in recent years as a non-invasive,radiation-free tool for the diagnosis of various acute and chronic pulmonary diseases due to its bedside convenience, accuracy, and free of radiation.There is increasing evidence to support the use of Lung ultrasound in acute care setting and post-cardiac surgical patients are also considered critically ill. The purpose of this study is to compare diagnostic performance of lung ultrasound in comparison to chest X-ray to detect pulmonary complication after cardiac surgery in children.
Rationale: Ulcerative colitis (UC) is remitting disease with a variable course. Predicting disease relapse after remission is important for the adjustment of medical treatment. Ileocolonoscopy is the best tool for doing this, but due to its invasiveness should be replaced by a method better accepted by the patient. Gastrointestinal ultrasound (GIUS) could be such a method.The PRELAPSE study will include UC patients who have been on maintenance anti-TNF therapy for at one year or more and in clinical remission for the 3 past months at least in two centres, Haukeland University Hospital and Ålesund Hospital. The infrastructure for recruiting these patients has already been established in the BIOSTOP study (Protocol ID no: HMR2016-0.6 and EudraCT (European Clinical Trials Database) no: 2016-001409-18). Objective: To study if GIUS or individual US parameters can predict endoscopic relapse at follow up examinations in a group of patients with ulcerative colitis in sustained clinical and endoscopic remission Study design: Prospective, longitudinal, explorative, observational multi-centric study for diagnostic accuracy Study population: Adult patients with histo-pathologically confirmed diagnosis of UC between 18 and 80 years of age that have entered the BIOSTOP trial (Trial number: EudraCT: 2016-001409-18) will be considered for inclusion in the proposed study. Intervention: All patients will be subjected to trans-abdominal gastrointestinal ultrasound and ileocolonoscopy. Blood and faeces samples will be collected at one time point for measuring relevant inflammatory markers. Main study parameter: Ultrasound measurements of the intestine of patients with ulcerative colitis Nature and extent of the burden and risks associated with participation, benefit and group relatedness: All patients will be examined repeatedly with gastrointestinal ultrasound (GIUS) and at certain time points with ileocolonoscopy or sigmoidoscopy. As all these procedures already are scheduled as a part of the BIOSTOP study the only extra burden for the patients will be the ultrasound examination. GIUS is a safe procedure that uses high frequency sound waves for the visualization of internal organs. The implementation of GIUS for the assessment of disease activity in UC patients might result in a reduced need for ileocolonoscopy, thereby reducing costs and the burden for patients. Compared to invasive endoscopic procedures GIUS can be performed without preparation, which is an advantage for the patients as treatment decisions can be made without delay. GIUS is also cheaper than ileocolonoscopy, causes little discomfort and has few or no complications.
Crohn's disease (CD) is a chronic inflammatory disease in the gastrointestinal (GI) tract. It is characterized by an alternating course between remission and relapse, which necessitates subsequent adjustments in medical therapy. Thus, it is important to have suitable tools to assess disease activity, and currently the reference standard is using ileocolonoscopy. However, ileocolonoscopy causes major patient discomfort and due to logistic reasons, it cannot be performed on a regular basis. High frequency ultrasound (US) is a potentially useful tool to evaluate changes in disease activity in affected bowel segments. Although there are some studies using US in CD patients to construct ultrasonographic scoring systems, there are no validated scores in daily clinical practice. In a recent study by Nylund et al, we used multiple linear regression to select which simple conventional ultrasound parameters that should be included in an ultrasound scoring system (Simple Ultrasound Score of Crohn's Disease (SUS-CD)) using endoscopy as a reference (unpublished data). In this study, we aim to validate this scoring system using an endoscopic score (Simple endoscopic activity score for Crohn's disease (SES-CD)) as reference standard and to assess interobserver variability. The scoring system might be a useful supplement to endoscopy to follow up CD patients.
Headache affects the daily quality of life of patients. It has been reported that headaches may be associated with neck muscles, neck movements and trigger points in the neck Drug and non-drug treatments can be used today in the treatment of headaches. Various physical therapies are applied to cranial and cervical regions in non-drug therapies. Therapeutic ultrasound, Transcutaneous Electrical Nerve Stimulation (TENS), Hotpack and manipulation are some of them.This is a randomised placebo- controlled trial to determine the efficacy of the therapeutic ultrasound in the treatment of migraine.
Findings in neuroscientific research show that the environment one lives in has measurable effects on brain morphology and functioning. Human exposure to airborne infra- and ultrasound has been constantly increasing during the last decades. For instance, the European Renewable Energy Directive, established in 2009, lead to an increased use of wind turbines, generating infrasound. The EU Directive states that until 2020 a 20% of the EUs' total energy needs is to be generated with renewables, therefore the current infrasound load in the European environment will increase further. Similarly, ultrasound is ubiquitous in the modern public environment, emitted from public address systems, animal repellents, industrial machines, even toothbrushes. The present study aims to investigate potential long-term effects of exposure to infra- and ultrasound on subjective well-being, cognitive and brain functioning, as well as on brain structure. The study will apply a randomized-(placebo) controlled single-blind approach to investigate this subject.