Showing papers in "European Journal of Ultrasound in 1999"

TL;DR: ART-lab in real-time mode is a useful tool for monitoring arterial vessel wall dynamics, while off-line it can be employed to investigate the elastic vessel wall properties in combination with hemodynamics, such as blood flow velocity and shear rate distribution.

TL;DR: Results obtained since 1993 demonstrate that transrectally administered HIFU treatment achieves local control of localised prostate cancer in 80% of cases, with 70% complete success and 30% partial response.

TL;DR: This paper reviews major steps progressing from conception to the present clinical trial status of the HIFU device and results of human clinical studies are summarized to indicate performance of the device.

TL;DR: Focused ultrasound is a safe, well-tolerated and non-invasive method of delivering ablative thermal energy to selected tumours to assess the role of this modality in the treatment of cancer.

TL;DR: In the experience radiofrequency hyperthermia with the cooled-tip needle afforded an effective and safe percutaneous ablative method for HCC in cirrhosis and shortened treatment time.

TL;DR: Refinement of the FUS technique and long-term studies are now indicated prior to initial clinical application in fetal medicine, with the aim of applying the technique to problems in fetal Medicine and oncology.

TL;DR: High intensity focused ultrasound (HIFU) has been shown to be an effective method of hemostasis, in animal studies, for both solid organs and blood vessels, and may provide aneffective method in surgery and prehospital settings for treating trauma and elective surgery patients.

TL;DR: It is demonstrated that ultrasound scanning in Obstetrics and Gynecology may pose an occupational risk for doctors and technicians because of the correlation between injuries sustained in the workplace and factors such as age, gender, work load and intensity, scanning techniques, previous medical problems, and physical activity.

TL;DR: 3D-Echo permits a relatively precise measurement of ventricular volumes with a slight under-estimation in a porcine cardiac model and the angiocardiographic measurement was attached with the greatest error and thus appears ill-suited for the volumetry of geometrically more complex ventricles.

TL;DR: Endoscopic ultrasonography (EUS) must be considered the first-intention method in localizing PETs and is helpful in decision making and management of GEP endocrine tumors.

TL;DR: Therapeutic ultrasound for thrombolysis holds great promise in overcoming the limitations of current available therapies.

TL;DR: In various diseases of the pancreato-biliary duct system diagnostic accuracy of miniprobe ultrasonography has been shown to be superior to that of EUS, and appears to be a promising addition to the armamentarium of gastroenterologic diagnostics.

TL;DR: Muscle ultrasound can visualize anatomical abnormalities such as muscle atrophy and mesenchymal abnormalities in lesions of nerve roots, plexus, and peripheral nerve lesions.

TL;DR: Volume estimates using this new 3D ultrasound system using a position sensor based on magnetic scanhead tracking and new software utilising automatic contour tracing between manually traced contours showed very good agreement with true volumes.

TL;DR: Laroscopic ultrasound is safe, repeatable, and non-invasive, but a considerable learning curve is necessary to optimize its efficacy, and comparison of relative cost must be undertaken.

TL;DR: The aim was to test the accuracy of muscle volume measurements with a new 3-dimensional (3-D) ultrasound system, which allows a freehand scanning of the transducer with an improved quality of the ultrasound images and therefore the outlines of the muscles.

TL;DR: The objective of this report is to summarise current status of 3D-endosonography and to discuss the possible clinical impact of this new modality.

TL;DR: Acoustic simulations show that the maximum distance to produce continuous necrosis between foci in a multiple focus pattern and in a temporally multiplexed pattern is approximately 50% larger than the distance needed between sequential foci.

TL;DR: The strip-electrode transducer configuration promises to expedite treatment of extended tumor volumes and can cause underheating of tumor margins during hyperthermia unless special beam designs are used.

TL;DR: For patients with Gastric EUS, ultrasonography (EUS) is superior to any other imaging modality in the assessment of local tumor infiltration and local lymph nodes status and is especially important in the preoperative staging of patients with esophageal cancer and patients with proximal gastric cancer as mentioned in this paper.

TL;DR: With this device's satisfying sensitivity, regions of interest in a 1-h recording can audiovisually be evaluated off-line in a few minutes by an investigator.

TL;DR: The use of HIFU has also been extended to the treatment of renal, prostatic and bladder tumours and the results in these areas suggest further expansion of its role in urological practice.

TL;DR: A decrease in fetal organ blood flow might indicate a centralisation of fetal circulation in normal pregnancy at term, as a physiological response to a decrease in placental perfusion.

TL;DR: Different Doppler system settings show no significant influence on the decrease of mean Dopplers intensity, but have a significant effect on peak intensity.

TL;DR: Well-defined flow conditions that can be applied to investigate clinical ultrasound Doppler systems in a number of situations have been obtained.

TL;DR: Real-time IBS has progressed from research to routine as a tool to obtain additional and valuable information to conventional echocardiography in daily practice and could implicate hybernating myocardium.

TL;DR: The aim of this review is to provide an overview of the most significant EUS findings in choledocholithiasis together with the results of EUS in terms of diagnostic accuracy and cost-effectiveness.

TL;DR: The range of clinical applications is becoming wider, the number of patients undergoing ultrasound examinations is increasing and new techniques with higher acoustic output levels are being introduced, it is essential to maintain vigilance to ensure the continued safe use of ultrasound.

TL;DR: EUS-guided fine needle biopsy is a safe and efficient method for tissue sampling of peri-intestinal lesions and improves the diagnostic value of endoscopic ultrasonography considerably.