نتایج جستجو برای: scissors
تعداد نتایج: 1586 فیلتر نتایج به سال:
OBJECTIVE Cutting the intersegmental plane by using a stapler during segmentectomy might interfere with the expansion of the preserved lung due to visceral pleura caught in a staple line, especially in a large regional segmentectomy, such as left upper division or basal segmentectomy. We compared the preserved lung volume after segmentectomy among the methods using stapler, sharp dissection, an...
The commonly found abnormalities in endoscopic images are cancer tumors, ulcers, bleeding due to internal injuries, etc. Several methods of segmentation are employed in recent past for proper segmentation of such images. Intelligent scissors is one of the tools for segmentation. Here the segmentation of endoscopic images is presented using the intelligent scissors. This method is used to segmen...
To understand the visual analysis of biological motion, subjects viewed dynamic, stick figure renditions of a walker, car, or scissors through apertures. As a result of the aperture problem, the motion of each visible edge was ambiguous. Subjects readily identified the human figure but were unable to identify the car or scissors through invisible apertures. Recognition was orientation specific ...
L ight plays a key role in the living world. It serves as a source of energy through photosynthesis, makes sight possible, and regulates circadian rhythms. During evolution, organisms from bacteria to higher mammals elaborate various mechanisms to sense and respond to light, which manipulates their behavior. The use of light as a trigger is particularly attractive as a means of controlling biol...
OBJECTIVE To determine optimal scissor blade design and surgical approach to facilitate obtaining a long optic nerve segment during enucleation procedures. METHODS Two hundred mock enucleations were performed with the use of a human child skull model and a silicone sphere to simulate an eye. Temporal and nasal approaches with scissor blades with noncurved, mildly curved, or strongly curved bl...
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