نتایج جستجو برای: ncat phantom

تعداد نتایج: 17315  

Journal: :Medical physics 2012
J Deng

PURPOSE To develop a realistic yet flexible 4D digital phantom based on patient anatomy for dynamic estimation of organ doses due to external ionizing radiation. METHODS In this work, we propose to build a 4D digital phantom based on patient CT anatomy and time-tagged CT information. A regional 4D-CT is first acquired on the patient around lesion with a RPM system. By binning CT information a...

Journal: :Physical review 2022

The theory of nuclear ring currents torsional molecules induced by an external magnetic field along the torsion axis was developed in preceding paper [D. Jia et al., paper, Phys. Rev. A 106, 042801 (2022)]. Here we study magnetically electronic current density (MIC) for toluene presence that is aligned with methyl group. Properties MIC are studied detail at density-functional (DFT) level using ...

Journal: :Pain medicine 2000
J J Marbach K G Raphael

UNLABELLED The aim of this paper is to review the current knowledge of phantom tooth pain, a neuropathic facial pain disorder, thought to result from peripheral nerve injury. Phantom tooth pain is a deafferentation pain disorder of persistent toothache in teeth that have been denervated (usually by root canal treatment) or pain in the area formerly occupied by teeth prior to their extraction. T...

Journal: :Neurocase 2009
V S Ramachandran David Brang Paul D McGeoch

Following limb amputation patients continue to feel the vivid presence of a phantom limb. A majority of patients also experience pain in the phantom and sometimes (as in our case DS) the pain is severe. Remarkably we find that optically 'resurrecting' the phantom with a mirror and using a lens to make the phantom appear to shrink caused the pain to 'shrink' as well.

2012
Yasuhide Nagoshi Akira Watanabe Saiko Inoue Tomoki Kuroda Mitsuo Nakamura Yoshitake Matsumoto Kenji Fukui

BACKGROUND Amputation of an extremity often results in the sensation of a "phantom limb" where the patient feels that the limb that has been amputated is still present. This is frequently accompanied by "phantom limb pain". We report here the use of milnacipran, a serotonin and norepinephrine reuptake inhibitor, to treat phantom limb pain after amputation of injured or diseased limbs in three p...

Journal: :Brain : a journal of neurology 2006
Karen T Reilly Catherine Mercier Marc H Schieber Angela Sirigu

The loss of a limb leads to sensorimotor modifications that are frequently accompanied by the vivid experience that the missing limb is still present, and that it can be moved at will. Furthermore, amputees can clearly distinguish between phantom movements of the fingers and of more proximal joints, like movements of the elbow. This phenomenon raises the question of whether these specific phant...

2017
Min-Joo Kim Seu-Ran Lee Min-Young Lee Jason W Sohn Hyong Geon Yun Joon Yong Choi Sang Won Jeon Tae Suk Suh

Development and comparison of spine-shaped phantoms generated by two different 3D-printing technologies, digital light processing (DLP) and Polyjet has been purposed to utilize in patient-specific quality assurance (QA) of stereotactic body radiation treatment. The developed 3D-printed spine QA phantom consisted of an acrylic body phantom and a 3D-printed spine shaped object. DLP and Polyjet 3D...

Journal: :Physical Review C 2021

Background: About 50% of heavy elements are produced by the slow neutron capture process ($s$ process) in stars. The element gallium is mostly during weak $s$ massive stars.Purpose: Our activation at ${k}_{\mathrm{B}}T\phantom{\rule{4pt}{0ex}}\ensuremath{\approx}25$ keV first experiment a series and time-of-flight measurements on $^{69}\mathrm{Ga}$ $^{71}\mathrm{Ga}$ relevant for astrophysics.M...

Journal: :Proceedings. Biological sciences 1996
V S Ramachandran D Rogers-Ramachandran

Although there is a vast clinical literature on phantom limbs, there have been no experimental studies on the effects of visual input on phantom sensations. We introduce an inexpensive new device--a 'virtual reality box'--to resurrect the phantom visually to study inter-sensory effects. A mirror is placed vertically on the table so that the mirror reflection of the patient's intact had is 'supe...

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