نتایج جستجو برای: 2365 and 1009 microns
تعداد نتایج: 16827432 فیلتر نتایج به سال:
A microdissection and measurement technique has been adapted for biopsy of human small intestine. Specimens fixed in alcohol and acetic acid are Schiff stained in bulk. Villi and crypts are then dissected out under a dissecting microscope, placed under a coverslip, examined, measured, and the number of mitoses in individual crypts counted. With this method specimens of normal small intestine ha...
This paper deals with a historical overview of the activities of the French FEMTO-ST institute in the field of microrobotic manipulation and assembly. It firstly shows tools developped for fine and coarse positioning: microgrippers, 2 DoF modules and smart surfces. The paper then goes on the automation of tridimensional microassembly of objects measuring between 10 microns and 400 microns. We a...
The goal of this study was to evaluate the ability of near real-time reflectance confocal microscopy to image tumor metastasis in vivo in an animal model. We used an epi-illumination confocal microscope to capture images of mouse mammary tumors in nude immunodeficient and Balb/C immunocompetent mice. In vivo confocal images and videos of normal and neoplastic areas were obtained before and afte...
Interventional guidance systems require surgical navigation systems to register different tools and devices together. Standard navigation systems have various drawbacks leading to target registration errors (TRE) of around 3mm. The aim of this work is to introduce the photoacoustic (PA) effect as a direct 3D ultrasound (US) to video registration method. We present our experimental setup and dem...
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