The purpose of this study was to ultrasonically characterize infarcted human myocardial tissue at the microscopic level by scanning acoustic microscopy. Infarcted myocardial specimens from ten cases with acute myocardial infarction were studied. Specimens were formalin fixed, paraffin embedded and sectioned to 10-micron thickness. A specially developed scanning acoustic microscope system, opera...

PURPOSE To investigate the compatibility of a new model of self-expandable tracheal stent in rats. METHODS A new device of polyurethane covered and non - covered stent was placed in the trachea of Wistar rats. Animals were distributed in two groups: the polyurethane covered and non-covered group. Macroscopic parameters included position within the tracheal lumen, adherence to the mucosa, degr...

UNLABELLED To investigate the contribution of various tumor components to tumor [3H]FDG uptake, the size of proliferative cell and macrophage populations and the extent of necrosis, inflammatory infiltration and granulation tissue formation were evaluated in syngeneic rat mammary cancers (RMC) grown in immunocompetent rats, an animal tumor model that closely mimics human breast carcinoma. MET...

STUDY OBJECTIVES High dose rate (HDR) endobronchial brachytherapy is widely used as a palliative treatment for symptomatic airway obstruction by primary or secondary malignant tumors. We report on a successful use of HDR brachytherapy in patients with nonmalignant airway obstruction. DESIGN Case series PATIENTS Six patients received HDR brachytherapy for airway obstruction caused by granula...