Search results for "Sound"

Posterior Tibial Tendon Dislocation: A Case Report

2022

Abstract Isolated posterior tibial tendon dislocation is a rare condition. Diagnosis can be challenging, especially in the acute clinical setting. Predisposing factors include shallow posterior tibial tendon groove and tear of the flexor retinaculum. We report the case of traumatic subluxation of the posterior tibial tendon, illustrating imaging findings and surgical technique. Posterior tibial tendon dislocation was detected using dynamic ultrasound, while magnetic resonance was essential for a comprehensive evaluation that included underlying predisposing anatomic abnormalities and associated pathologic conditions. Conservative treatment is often unsuccessful thus surgical approach was ne…

Upper Limb Interventions.

2019

Ultrasound has been reported to be a quick, cheap, and effective imaging modality to guide the interventional procedures in the musculoskeletal system. The use of ultrasound results in increased accuracy of needle placement associated with a reduction of complications. In the upper limb, ultrasound-guided procedures are applied to joints and soft tissues around the shoulder, elbow, wrist, and hand. This article reviews the clinical and technical aspects of the most common procedures performed in this anatomic area.

Aidon kosketus : äänitteen diskurssit suomalaisissa musiikin aikakauslehdissä

2006

Naismuusikkokuvia Soundi-lehden levyarvioissa

2007

Ultrasound in peripheral nerve injuries: the challenge. Response

2017

Device For Ultrasound Tests

2015

A device (1) for ultrasound tests, comprising one or more transducers (4) for generating ultrasound beams with different powers and/or frequencies to be projected in direction of a plurality of targets (11), guaranteeing the separate control of the temperature both of the targets and of the transducers and it allows performing several tests contemporarily, by optimizing the functionality and the efficiency of the device, at the same time by guaranteeing results comparable therebetween for each test, and to this purpose it comprises: a first supporting structure (3) having at least a closed chamber (7; 23) receiving the body of said one or more transducers (4) and it is isolated from a propa…

The Louder, the Longer: Object Length Perception Is Influenced by Loudness, but Not by Pitch

2019

Sound by itself can be a reliable source of information about an object&rsquo

Assessing the Open Trenches in Screening Railway Ground-Borne Vibrations by Means of Artificial Neural Network

2009

Reducing ground borne vibrations in urban areas is a very challenging task in railway transportation. Many mitigation measures can be considered and applied; among these open trenches are very effective. This paper deals with the study of the effect, in terms of reduction of vertical and horizontal displacements and velocities, of the open trenches. 2D FEM simulations have been performed and several open trench configurations have been analysed varying the main geometric features such as width and depth, distance from the rail, thickness of the soil layer over the rigid bedrock, type of the ground, ratio between the depth of the trench, and the thickness of the soil layer. For quantifying t…

EMERGING ROLE OF ULTRASOUND IMAGING ASSOCIATED TO CLINICAL NEUROPHYSIOLOGY AS A SUPPLEMENTARY DIAGNOSTICS TECHNIQUE OF PERIPHERAL NERVES PATHOLOGIES:…

2013

PURPOSE: to show the relevance of peripheral nerve ultrasound imaging as a supplementary technique in a clinical neurophysiological evaluation. METHODS: peripheral nerves ultrasound (US) examination was performed in patients with a medical history of nerve entrapment and/or post-traumatic neuropathy but with clinical or neurophysiological unusual findings. A 10-18 MHz transducer was used. RESULTS: we recruited 50 patients with clinical evidence of peripheral neuropathies (25M, 25F): 24 median nerves, 1 anterior interosseous, 14 ulnar, 3 brachial plexus, 2 posterior interosseus, 1 superficial radial, 1 superficial peroneal and 4 common peroneal nerves. Overall 20/50 patients had a history of…

A study of Type B uncertainties associated with the photoelectric effect in low-energy Monte Carlo simulations

2021

The goal of this manuscript is to estimate Type B uncertainties in absorbed-dose calculations arising from the different implementations in current state-of-the-art Monte Carlo codes of low-energy photon cross-sections (<200 keV). Monte Carlo simulations are carried out using three codes widely used in the low-energy domain: PENELOPE-2018, EGSnrc, and MCNP. Mass energy-absorption coefficients for water, air, graphite, and their respective ratios; absorbed dose; and photon-fluence spectra are considered. Benchmark simulations using similar cross-sections have been performed. The differences observed between these quantities when different cross-sections are considered are taken to be a go…