631 research outputs found
Minimal invasive Treatment for Hydatid Abdominal Cysts: PAIR (Puncture, Aspiration, Injection, Reaspiration)- State of the Art
No full textRadiofrequency ablation of liver tumors: the role of microbubble ultrasound contrast agents
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Radiofrequency ablation of liver tumors: the role of microbubble ultrasound contrast agents.
Author(s): Meloni, Maria Franca; Livraghi, Tito; Filice, Carlo; Lazzaroni, Sergio; Calliada, Fabrizio; Perretti, Leonardo
Source: Ultrasound quarterly Volume: 22 Issue: 1 Pages: 41-7 Published: 2006-Mar
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Abstract: Radiofrequency ablation (RFA) is currently indicated for the treatment of primary and metastatic hepatic malignancies. Real-time ultrasound (US) is generally used during the procedure to guide electrode placement, but for evaluating the results of treatment, contrast-enhanced computed tomography and magnetic resonance imaging have traditionally been considered more effective. This view has changed, however, with the recent development of contrast-enhanced ultrasound (CEUS) (eg, using sulfur hexafluoride microbubbles), which can provide valuable information on the effects of RFA more rapidly and economically than computed tomography or magnetic resonance imaging without exposing the patient to ionizing radiation. In our center, CEUS is performed in patients with liver tumors before and immediately after RFA, in selected cases during the procedure as well, and in the follow-up. Between January 2003 and June 2005, we performed CEUS on 350 patients scheduled for RFA of primary or metastatic liver tumors. In 14 (13.4%) of the 96 patients whose disease was metastatic, CEUS revealed lesions that had been missed on the conventional US examination. In most of these cases, the result was a more complete treatment performed under CEUS guidance. In the remaining 2 (14%) of 14, the results of the examination allowed us to avoid subjecting the patient to useless treatment. In our experience, the use of CEUS also improved the management and follow-up of patients undergoing interstitial therapy
"Author Meets Critics: Predrag Cicovacki, Author of Gandhi's Footprints, Meets Critics Sanjay Lal and Carlo Filice"
No full textTwo critics respond to Predrag Cicovacki’s book, Gandi’s Footprints. Cicovacki opens the discussion by presenting his motivations for exploring a paradox, that Gandhi’s work is widely revered but not widely emulated. Cicovacki explores a resolution to the paradox by suggesting how Gandhi’s promising visions may be followed without being imitated, especially Gandhi’s insight that we must seek spiritual grounding for life in a materialistic world. Critic Sanjay Lal affirms Cicovacki’s insight but suggests that precisely because Gandhi’s aspirations for spiritual life were profoundly transformative we should take care not to dilute them into our conventional wisdoms. Critic Carlo Filice asks how Gandhi’s commitment to unified reality could be more clearly articulated once a distinction is drawn between spirit and matter, also how Gandhi’s nonviolence could manage to embrace important exceptions. In reply to critics, Cicovacki proposes an approach to Gandhi informed by the insights of Tagore
On the effectiveness of numerical simulation in the prediction of profile distorsion in extrusion
No full textA Laboratory Scale Equipment to Relieve Force and Pressure in Cold Extrusion of Lead Hollow Components
No full textDevelopment of an Extrusion Equipment to Measure Force and Pressure in Hollow Components Manufacturing
No full textDesign of a Flexible Down-Scaled Equipment to Reproduce Tube Welding Conditions in Extrusion
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