OBJECTIVE: To assess the feasibility of a pure endoscopic closure method for vesical perforations using fully absorbable material. MATERIALS AND METHODS: A pilot experimental study was performed in eight anaesthetized female pigs. Four 10-mm and four 20-mm endoscopic full thickness cystotomies were created. An endoscopic suturing machine (RD-180®; LSI Solutions, Victor, NY, USA) was deployed through the workin...
Singe Photon Emission. Computed Tomography is a powelful technique increasing lesion detection. Qualitative and quantitative data can be extracted from the tridimensional distribution of the radiopharmaceutical. However, SPECT images are affected by several physical factors that need to be minimised and compensated. (...)keywords: Medical imaging; nuclear medicine; tomographyPh.D., 1986more info: ...
The equilibrium radionuclide angiocardiography is a powerful diagnosis technique for a non-invasive evaluation of the cardiac function. The red blood cellsare labelled using an intravenous injection of the radioactive tracer (99mTc). This method requires the use of a gamma camera and a data acquisition and processing system for the calculation of quantitative hemodynamic parameters describing the left vent...
Dissertação apresentada para a obtenção do grau de Mestre em Educação - Área de Especialização em Didática das Ciências ; Esta investigação teve como objetivo averiguar as caraterísticas do espaço recreio de algumas escolas do 1.º Ciclo do Ensino Básico. Decorrente dos vários aspetos observados procurou verificar-se se os mesmos se poderiam inserir num dos quatro tipos definidos por Frost & Klein (1979), e que...
PURPOSE: Precise needle puncture of the renal collecting system is a challenging and essential step for successful percutaneous nephrolithotomy (PCNL). This works aims to evaluate the efficiency of a new real-time electromagnetic tracking (EMT) system for in vivo kidney puncture. MATERIALS AND METHODS: Six anesthetized female pigs underwent ureterorenoscopies in order to place a catheter with an EMT sensor into...
The aim of this study was to analyse natural orifice transluminal endoscopic surgery (NOTES)-related publications over the last 5 years. A systematic literature search was done to retrieve publications related to NOTES from 2006 to 2011. The following variables were recorded: year of publication; article type; study design; setting; Journal Citation Reports® journal category; authors area of surgical speciality...
OBJECTIVE: To compare the last generation of 3-dimensional imaging (3D) vs standard 2-dimensional imaging (2D) laparoscopy. MATERIALS AND METHODS: A prospective observational study was conducted during the 4th Minimally Invasive Urological Surgical Week Course held in Braga (Portugal) in April 2013. The course participants and faculty were asked to perform standardized tasks in the dry laboratory setting and ra...
PURPOSE: Precise needle puncture of the renal collecting system is a challenging and essential step for successful percutaneous nephrolithotomy (PCNL). This works aims to evaluate the efficiency of a new real-time electromagnetic tracking (EMT) system for in vivo kidney puncture. MATERIALS AND METHODS: Six anesthetized female pigs underwent ureterorenoscopies in order to place a catheter with an EMT sensor into...
The aim of this study was to analyse natural orifice transluminal endoscopic surgery (NOTES)-related publications over the last 5 years. A systematic literature search was done to retrieve publications related to NOTES from 2006 to 2011. The following variables were recorded: year of publication; article type; study design; setting; Journal Citation Reports® journal category; authors area of surgical speciality...
OBJECTIVE: To compare the last generation of 3-dimensional imaging (3D) vs standard 2-dimensional imaging (2D) laparoscopy. MATERIALS AND METHODS: A prospective observational study was conducted during the 4th Minimally Invasive Urological Surgical Week Course held in Braga (Portugal) in April 2013. The course participants and faculty were asked to perform standardized tasks in the dry laboratory setting and ra...
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