Abstract：
:Accurate three-dimensional tumor localisation in Radiotherapy, is critical to the treatment outcome, particularly when high dose gradients are present. A number of techniques have been proposed for the localisation of anatomical structures or markers. The present study proposes an approach to a concurrent maximisation of localisation accuracy and efficiency by correlation of tomographic and projectional images. The method introduces an element of direct verification and interactive optimisation of the process. Tomographic images are used for the identification of a point of interest. Its position is computed within the treatment co-ordinate system and verification of this position is achieved by obtaining the beam's eye view of the identified point on two projection radiographs. The key element of the approach is that all images used should be part of one single image data set. The implementation of this localisation method, as part of the functionality of a Digital Tomosynthesis prototype, has provided an integrated facility for localisation, of optimised accuracy and precision, while easy and efficient to use. The considerations are general and apply in principle to any imaging system that can augment tomographic images with projections.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Messaris G,Kolitsi Z,Badea C,Pallikarakis Ndoi
10.1016/s1350-4533(99)00015-6subject
Has Abstractpub_date
1999-03-01 00:00:00pages
101-9issue
2eissn
1350-4533issn
1873-4030pii
S1350453399000156journal_volume
21pub_type
杂志文章abstract：:In case of large segmental defects in load-bearing bones, an external fixator is used to provide mechanical stability to the defect site. The overall stiffness of the bone-fixator system is determined not only by the fixator design but also by the way the fixator is mounted to the bone. This stiffness is an important ...
journal_title：Medical engineering & physics
pub_type： 杂志文章
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更新日期：2013-07-01 00:00:00
abstract：:Automated methods of neonatal EEG seizure detection attempt to highlight the evolving, stereotypical, pseudo-periodic, nature of EEG seizure while rejecting the nonstationary, modulated, coloured stochastic background in the presence of various EEG artefacts. An important aspect of neonatal seizure detection is, there...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.08.001
更新日期：2012-05-01 00:00:00
abstract：OBJECTIVE:Mathematical modeling of cerebral hemodynamics by descriptive equations can estimate the underlying pulsatile component of cerebral arterial blood volume (CaBV). This way, clinical monitoring of changes in cerebral compartmental compliances becomes possible. Our aim is to validate the most adequate method of ...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2019.07.019
更新日期：2019-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(00)00065-5
更新日期：2000-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/1350-4533(95)00075-5
更新日期：1996-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/1350-4533(90)90008-v
更新日期：1994-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
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更新日期：2012-03-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2015.03.019
更新日期：2015-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(99)00049-1
更新日期：1999-05-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(02)00196-0
更新日期：2003-05-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2017.04.009
更新日期：2017-07-01 00:00:00
abstract：:Biodegradable materials have been generating increasing bit of interest in biomedical applications and associated research. The evolution of implants made up of such materials (Mg-alloys, etc.) has the potential to be a game changer in fracture surgeries. These implants are essentially made up of a plate and a number ...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2020.05.010
更新日期：2020-07-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 临床试验,杂志文章
doi：10.1016/j.medengphy.2004.12.002
更新日期：2005-07-01 00:00:00
abstract：:Dynamic models of the human trunk have been extensively used to investigate the biomechanics of lower back pain and postural instability in different populations. Despite their diverse applications, previous models rely on intrinsic upper body segment parameters (UBSP), e.g., each segment's mass-inertia characteristic...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2010.09.008
更新日期：2011-01-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(01)00003-0
更新日期：2000-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2012.10.004
更新日期：2013-03-01 00:00:00
abstract：:Cerebral autoregulation (CA) is the mechanism that aims to maintain adequate cerebral perfusion during changes in blood pressure (BP). Transfer function analysis (TFA), the most reported method in literature to quantify CA, shows large between-study variability in outcomes. The aim of this study is to investigate the ...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2016.02.001
更新日期：2016-05-01 00:00:00
abstract：:In this paper a self-opening intrafascicular neural interface (SELINE) has been modeled using both a theoretical approach and a Finite Element (FE) analysis. This innovative self opening interface has several potential advantages such as: higher selectivity due to its three-dimensional structure and efficient anchorag...
journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.06.001
更新日期：2011-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/1350-4533(95)00057-7
更新日期：1996-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2012.08.022
更新日期：2013-07-01 00:00:00
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journal_title：Medical engineering & physics
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doi：10.1016/j.medengphy.2019.07.020
更新日期：2020-01-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 临床试验,杂志文章
doi：10.1016/j.medengphy.2004.03.002
更新日期：2004-07-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(98)00037-x
更新日期：1998-06-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.08.008
更新日期：2012-05-01 00:00:00
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journal_title：Medical engineering & physics
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doi：10.1016/j.medengphy.2014.06.011
更新日期：2014-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2006.05.009
更新日期：2006-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2008.01.003
更新日期：2008-10-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/s1350-4533(03)00073-0
更新日期：2003-09-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2016.09.011
更新日期：2016-12-01 00:00:00
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journal_title：Medical engineering & physics
pub_type： 杂志文章
doi：10.1016/j.medengphy.2011.06.013
更新日期：2012-01-01 00:00:00
