Search results for "Peripheral"

Radiation protection of patients undergoing high-dose-rate brachytherapy: peripheral dose estimation, review of radiation risks and implant shielding…

2015

La braquiterapia (BT) es una modalidad de tratamiento de radioterapia en la que se coloca una fuente radiactiva encapsulada cerca, en contacto o en el interior del volumen a tratar. La desintegración de esta fuente produce la emisión de energía, lo que puede dar lugar a la muerte celular. Una dosis absorbida muy elevada (la dosis absorbida se define como la energía absorbida por unidad de masa) se deposita en un corto período de tiempo y en un pequeño número de fracciones. Para poder realizar un tratamiento de BT se requiere que el volumen de tratamiento sea accesible y bien delimitado en tamaño y forma. La BT se utiliza comúnmente como una modalidad de tratamiento eficaz para el cáncer de …

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…

Do Physiological Responses and Personality Traits Relate to Auditory Perceptual Learning in Musicians and Non-Musicians?

2009

Peripheral nervous system can influence learning and memory functions by increasing the activity level (‘arousal’) of the system with increasing task difficulty. Several studies show that musicians discriminate auditory stimuli more effectively both neurally and behaviourally. Yet, the effects of individual peripheral nervous responses or personality during auditory learning have not been studied in musicians. In this paper, we show preliminary evidence on physiological differences between musicians and non-musicians during auditory perceptual learning. Results suggest that musicians have higher change in skin temperature and heart rate between resting state and active auditory discriminati…

Bloodstream Infection Incidence of Different Central Venous Catheters in Neonates: A Descriptive Cohort Study

2017

Central venous catheters (CVCs) in neonates are associated with a risk of central line-associated bloodstream infections (CLABSI). Most reports on the incidence of CLABSI in neonates focus on umbilical venous catheters (UVCs) and peripherally inserted central catheters (PICCs). We evaluated the incidence and risk factors for CLABSI in a cohort of neonates with femoral venous catheters (FVCs), UVCs, and PICCs, with a gestational age ≥34 weeks born between January 1, 2006 and June 30, 2013. We included 2,986 neonates with a total of 656 catheters. The CLABSI incidence rate varied from 12.3 per 1,000 catheter-days in FVCs to 10.6 per 1,000 catheter-days in UVCs and 5.3 per 1,000 catheter-days …

Exclusive J=ψ Photoproduction off Protons in Ultraperipheral p-Pb Collisions at √sNN = 5.02 TeV

2014

SUBINTIMAL RECANALIZATION AND STENTING FOR LONG SUPERFICIAL FEMORAL ARTERY OCCLUSIONS

2007

Objective: To assess the feasibility and mid-term outcome of combined subintimal recanalization and stenting for the treatment of long superficialFebruary, and then Protégé® EverFlexTM) were placed in the whole subintimal space. The number and the length of stents was dictated from the length of the intentional subintimal dissection. The site of re-entry was chosen without compromise the feasibilty of a future bypass grafting. When completion arteriogram revealed residual stenosis, a post-dilatation was performed. Results: Twenty-eight patients (90.3%) underwent successful procedures, whereas two attempts failed because of inability to pass the guidewire through SFA occlusion and one becaus…

High-Frequency and Ultra-High Frequency Ultrasound: Musculoskeletal Imaging up to 70 MHz

2020

AbstractMusculoskeletal (MSK) ultrasound has well-established advantages, able to investigate very small structures with high resolution and a quick and real-time dynamic evaluation with the possibility of contralateral comparison. Thus ultrasound has kept its own almost exclusive fields of application in daily clinical practice, and it is considered the first-level imaging technique to assess tendons, bursae, and capsuloligamentous structures of small peripheral joints as well as peripheral nerves. Up to now, however, clinical MSK ultrasound imaging could not go beyond the first 1 to 2 cm under the skin, using high-frequency probes up to 18 to 20 MHz with spatial resolution just below mill…

Motion perception in early glaucoma

2013

Purpose: The aim of our study was to underline the changes in the movement perception for early glaucoma. Our working hypothesis consisted in inquiring if the impairment of the magnocellular pathway may modify the movement perception capabilities in the visual field, more particularly in its peripheral area.Methods: We included 14 healthy subjects and 14 patients with early primary open angle glaucoma. A moving target was presented on a semicircular screen (1.8 m diameter); participants were asked to localize the Ending Point (EP) of each movement. Each stimulus consisted in a white dot (0,72° of diameter) moving horizontally with the imposed velocity profile. Two different laws of motion w…