نتایج جستجو برای: 3d imaging system

تعداد نتایج: 2744044  

Journal: :Physics in medicine and biology 2014
Tuathan P O'Shea Leo J Garcia Karen E Rosser Emma J Harris Philip M Evans Jeffrey C Bamber

This study investigates the use of a mechanically-swept 3D ultrasound (3D-US) probe for soft-tissue displacement monitoring during prostate irradiation, with emphasis on quantifying the accuracy relative to CyberKnife® x-ray fiducial tracking. An US phantom, implanted with x-ray fiducial markers was placed on a motion platform and translated in 3D using five real prostate motion traces acquired...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1387

چکیده ندارد.

2014
Tsung-Han Tsai Osman O. Ahsen Hsiang-Chieh Lee Kaicheng Liang Michael G. Giacomelli Benjamin M. Potsaid Yuankai K. Tao Vijaysekhar Jayaraman Martin F. Kraus Joachim Hornegger Marisa Figueiredo Qin Huang Hiroshi Mashimo Alex E. Cable James G. Fujimoto

We developed an ultrahigh speed endoscopic swept source optical coherence tomography (OCT) system for clinical gastroenterology using a vertical-cavity surface-emitting laser (VCSEL) and micromotor based imaging catheter, which provided an imaging speed of 600 kHz axial scan rate and 8 μm axial resolution in tissue. The micromotor catheter was 3.2 mm in diameter and could be introduced through ...

Journal: :Computational and Mathematical Methods in Medicine 2013

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

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