نتایج جستجو برای: scanner performance

تعداد نتایج: 1067142  

Journal: :iranian journal of nuclear medicine 2009
parham geramifar mohammad reza ay mojtaba shamsaie zafarghandi george loudos arman rahmim

combined pet/ct scanners now play a major role in medicine for in vivo imaging in oncology, cardiology, neurology, and psychiatry. as the performance of a scanner depends not only on the scintillating material but also on the scanner design, with regards to the advent of newer scanners, there is a need to optimize acquisition protocols as well as to compare scanner performances on an objective ...

Journal: :Japanese Journal of Radiological Technology 1982

Arman Rahmim George Loudos Mohammad Reza Ay Mojtaba Shamsaie Zafarghandi Parham Geramifar,

  Combined PET/CT scanners now play a major role in medicine for in vivo imaging in oncology, cardiology, neurology, and psychiatry. As the performance of a scanner depends not only on the scintillating material but also on the scanner design, with regards to the advent of newer scanners, there is a need to optimize acquisition protocols as well as to compare scanner ...

Journal: :Nuclear Instruments and Methods 1959

Introduction:MAMMI is a dedicated PET based on high resolution detectors placed close to the breast. In this study, we presented a GATE model for the simulation of MAMMI scanner and model its performance of the MAMMI based on an adaptation of the NU 4-2008 NEMA standard.  Methods:A detailed of geometry MAMMI system that uses scintillation crystals coupled...

Journal: :Proceedings of the National Academy of Sciences 1971

Journal: :Robotics and Autonomous Systems 2013
D. Grivon Enrico Vezzetti Maria Grazia Violante

Working in the low cost 3D scanner design domain, it would be very interesting to employ inertial technologies because they could provide objects surface spatial data, recording they movement moving, and asking a very low cost in term of sensor investment. Unfortunately these technologies are characterised by distortion problems that normally do not allow to obtain satisfying measures for being...

2013
Massimiliano Ferrucci Bala Muralikrishnan Christopher Blackburn Daniel Sawyer Steve Phillips Peter Petrov Yuri Yakovlev Andrey Astrelin Spike Milligan John Palmateer

INTRODUCTION Large volume laser scanners are used for a variety of purposes, including dimensional metrology of large artifacts, digitization and reverse engineering, as well as historical preservation and archiving. These devices exploit the propagative properties of structured light (in this case, lased light) to collect spatial information of objects in the field of view. Laser scanners empl...

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