Search results for "Ultra"
showing 10 items of 4451 documents
Zum Einsatz des Ultraschalls in der Diagnostik von Nase und Nasennebenhöhlen
2005
Ultrasound is commonly performed to diagnose pathological processes of the neck and the salivary glands. In contrast, pathological changes of the sinuses and the bony structures of the face are only rarely examined sonographically. This paper deals with the diagnostic scope of ultrasound in the case of orbital and nasal fractures as well as for cases of sinus pathology excluding acute sinusitis. 51 patients with different diseases of this area were examined using US and X-ray or CT scan. Fractures of the nose could all be diagnosed correctly by ultrasound, which is of clinical importance if children or pregnant patients are examined. Blow-out fractures of the orbit were not detected. In con…
Double nail of the second toe: A case report with sonographic and radiological correlation
2021
Double toenail is a rare abnormality that usually affects the fifth toe. It is considered as an inherited condition that may represent an incomplete form of polydactyly. Underlying bone abnormalities should be ruled out. We present a case of a double toenail of the second toe, a location that has not previously been described, with underlying bone involvement noted on ultrasound and plain films.
Advancing frontiers in rheumatic and musculoskeletal imaging.
2021
AbstractIn recent years, technological improvements allowed imaging modalities to become increasingly essential in achieving early and precise diagnoses in the field of rheumatic and musculoskeletal diseases (RMDs). To date, imaging examinations are routinely used in all steps of diagnostic and therapeutic care pathways of patients affected by RMDs. The articles published in this Article Collection clearly show the efforts of researchers to find innovative applications of musculoskeletal imaging in clinical practice and to face the crucial challenges that remain in the interpretation and quality control of images. Highly performing diagnostic technologies are currently available to early di…
Detection of liver metastases in cancer patients with geographic fatty infiltration of the liver: the added value of contrast-enhanced sonography
2017
Purpose The aim of this study is to assess the role of contrast-enhanced ultrasonography (CEUS) in the detection of liver metastases in cancer patients with geographic liver fatty deposition on greyscale ultrasonography (US). Methods Thirty-seven consecutive cancer patients (24 women and 13 men; age, 33 to 80 years; mean, 58.1 years) with geographic liver fatty deposition, but without any detectable focal liver lesion on greyscale US, underwent sulphur hexafluoride-enhanced US. Two readers reported by consensus the presence, size, and location of any detected lesion. All patients underwent magnetic resonance imaging (MRI) as a confirmatory study. Sensitivity, specificity, positive and negat…
Bilateral ultrasound transversus abdominis plane block in a patient affected from Menkes disease
2012
This case report demonstrates the utility and safety of ultrasound transversus abdominis plane (TAP) block in a paediatric patient suffering from Menkes disease. Anaesthetists, and particularly paediatric and neonatal anaesthetists, have to make a careful assessment of these patients, who are subjected to frequent surgeries, despite their tender years. These operations are often necessary in order to improve the patient’s quality of life as much as possible. The choice of anaesthetic technique must take the particular nature of the disease and the patient’s medical history into consideration, while careful preparation and preoperative evaluations make it possible to administer the general o…
Diagnostic accuracy of Doppler sonography and magnetic resonance venography for the assessmentv of impaired outflow from the internal jugular vein in…
2015
Objectives: This prospective study was aimed at evaluation of diagnostic value of Doppler sonography and magnetic resonance (MR) venography in the internal jugular vein territory. Material and methods: There were assessed 126 patients (252 internal jugular veins). The patients were initially diagnosed using Doppler sonography and MR venography, and then catheter venography of the veins was performed. For the purpose of this study catheter venography was regarded the reference test. We interpreted sonographic findings in the context of criteria proposed by Zamboni and criteria by International Society for Neurovascular Disease (ISNVD). We applied MR protocols aimed at flow assessment in the …
Interventional cardiology: Differences in the morphology of unstable and stable coronary lesions and their impact on the mechanisms of angioplasty. A…
1996
The aim of this study was to compare the morphology of stable and unstable coronary lesions using intravascular ultrasound in patients undergoing coronary balloon angioplasty and to determine whether lesion morphology had any influence on the mechanism of balloon angioplasty. Thirty three (15 stable and 18 unstable) patients undergoing single lesion percutaneous transluminal coronary angioplasty were studied with intravascular ultrasound before and after intervention. All examinations, recorded on S-VHS video tape, were studied off-line and matched sites from the point of minimum lumen area after the procedure and the corresponding site prior to intervention were compared. The morphology of…
New frontiers in liver ultrasound: From mono to multi parametricity
2021
Modern liver ultrasonography (US) has become a "one-stop shop " able to provide not only anatomic and morphologic but also functional information about vascularity, stiffness and other various liver tissue properties. Modern US techniques allow a quantitative assessment of various liver diseases. US scanning is no more limited to the visualized plane, but three-dimensional, volumetric acquisition and consequent post-processing are also possible. Further, US scan can be consistently merged and visualized in real time with Computed Tomography and Magnetic Resonance Imaging examinations. Effective and safe microbubble-based contrast agents allow a real time, dynamic study of contrast kinetic f…
Intravaskuläre Sonographie: Erste klinische Ergebnisse
1991
Intravascular ultrasound is a new diagnostic modality which, for the first time, provides high resolution images of the vessel wall. 91 intraluminal ultrasound studies were performed in 50 patients during the course of 55 diagnostic and therapeutic catheterizations. A F-6 ultrasound catheter (20 MHz) was used. The method is an easily and rapidly performed addition to angiography. Changes in vessel walls (arteriosclerosis, dissection, tumour infiltration) can be readily diagnosed and their extent can be accurately described. The ability to determine luminal cross sectional area is particularly helpful for planning and performing therapeutic interventions.