Search results for "immagini"

Ipofisi

2012

Considerata l'elevata complessità anato-funzionale e le ridotte dimensioni delle strutture presenti nella regione sellare e ixuta-sellare, la parte introduttiva dell'intervento sarà obbligatoriamente dedicata a brevi richiami di fisiologia dell'asse ipotalamo-ipofisario, alla diagnostica di laboratorio (talvolta erroneamente considerata “di supporto” alla diagnostica per immagini) e all'anatomia radiologica; ciò consentirà di meglio comprendere la necessità di un assoluto rigore nei protocolli d'esame utilizzati per ottenere immagini di elevata affidabilità diagnostica. Sarà dato ampio spazio ai protocolli di studio e saranno discusse le principali indicazioni allo studio di tali dis…

Liver stiffness quantification in patients with non-alcoholic steatohepatitis: comparison of shear wave elastography and transient elastography with …

2019

Purpose: To assess the accuracy of liver stiffness quantification in patients with non-alcoholic steatohepatitis (NASH) using shear wave elastography (SWE) in comparison with transient elastography (TE). Methods and Materials: This is a prospective study performed in a single institution, including 49 patients with histological diagnosis of NASH. The stiffness of the right liver lobe was measured on the same day with two techniques: TE (FibroScan, Echosens), and SWE (RS80A ultrasound system, Samsung Medison). In the SWE evaluation, 11 patients were excluded due to more than 75% measurements fails. Receiver operating curves (ROC), areas under the ROC (AUROC) and 95% confidence intervals (CI)…

Liver stiffness quantification in biopsy-proven nonalcoholic fatty liver disease patients using shear wave elastography in comparison with transient …

2021

Purpose: This study prospectively assessed the performance of liver stiffness measurements using point shear-wave elastography (p-SWE) in comparison with transient elastography (TE) in patients with biopsy-proven nonalcoholic fatty liver disease (NAFLD). Methods: Fifty-six consecutive adult patients with a histological diagnosis of NAFLD prospectively underwent TE and p-SWE on the same day. The median of 10 measurements (SWE-10), the first five (SWE-5), and the first three (SWE-3) measurements were analyzed for p-SWE. Liver biopsy was considered as the reference standard for liver fibrosis grade. Receiver operating characteristic (ROC) curves and areas under the ROC curves (AUROCs) were cal…

Influenza del numero dei GCP e dei coefficienti nel modello delle funzioni razionali terreno-dipendenti

2005

In questo scritto viene illustrata una sperimentazione sulle potenzialità di impiego delle immagini satellitari ad alta risoluzione nella produzione di ortofoto digitali, mediante applicazione del modello delle funzioni razionali senza conoscenza a priori dei coefficienti. In particolare, tre sono gli aspetti approfonditi: a) le accuratezze raggiungibili; b) l’influenza del numero dei coefficienti, nonché della distribuzione e densità dei punti di appoggio; c) la possibilità di utilizzare punti di appoggio e DEM estratti da cartografia a scala adeguata. La sperimentazione è stata condotta mediante alcune applicazioni ad una scena IKONOS Geo del territorio di Palermo ed ha compreso due tipi …

Diagnosi di osteonecrosi mediante WB-MRI in paziente con Linfoma di Hodgkin resistente trattato con BEACOPP: Case Report.

2016

Hodgkin's lymphoma is a very common haematological neoplasm with high possibilities of response to treatment. On the other hand, therapies are often responsible for clinically relevant complications. Among these is osteonecrosis, generally determined by the high dosages of corticosteroids included in the chemotherapeutic protocols, which lead to bone ischemia through multifactorial mechanisms such as hypercoagulability and increase of intraosseous pressure due to hyperplasia of the adipose component. We report the case of a 29-year-old man with resistant Hodgkin's lymphoma undergoing chemotherapy which determined the appearance of multifocal osteonecrosis detected by Magnetic Resonance whol…

Paradoxical arterial priapism: post-traumatic monolateral low penile perfusion and curvature associated to contro-lateral arterious-cavernous acerati…

2006

Poster for IX Congress of the European Society for Sexual Medicine. Vienna, Dicember 3th – 6th 2006

Pediatric radiation doses from multi-detector CT exams: preliminary results from the first 2011 Italian national survey

2012

Correlation between congenital and acquired elements in penile curvature and consequent possible new indications for surgical correction.

2005

Poster for VIII Congress of the European Society for Sexual Medicine. Copenhagen, Dicember 4th – 7th 2005

Valutazione del grado di attivita’ del morbo di Crohn tramite clisma-RM con sequenza in perfusione.

2010

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…