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Št. zadetkov: 6
IMRT point dose measurements with a diamond detector
Erin Barnett, Marc MacKenzie, B. Gino Fallone
Izvirni znanstveni članek
Oznake:
Background. Radiation dose distribution calculations used in treatment planning systems (TPS) describe dose deposition well for large fields. For small fields encountered in Intensity Modulated Radiation Therapy (IMRT) thesemodels may be less accurate. Dose verification of IMRT fields is therefore e ...
Leto: 2005 Vir: dLib.si Digitalna knjižnica Slovenije
How well are clinical gross tumor volume DVHs approximated by an analytical function?
Pavel Stavrev, Colleen Schinkel, Nadia Stavreva, B. Gino Fallone
Strokovni članek
Oznake:
The dose heterogeneity in the tumor is often described as being normally distributed. Besides the normal distribution we propose the Fermi function describing Fermi statistics as a possible dose heterogeneity descriptor. In order to demonstrate the adequacy of the proposed functions as dose distribu ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
Analytical investigation of properties of the iso-NTCP envelope
Pavel Stavrev, Colleen Schinkel, Nadia Stavreva, Krassimir Markov, B. Gino Fallone
Izvirni znanstveni članek
Oznake:
Background. A property of the integral dose-volume histogram (DVH) space is analytically investigated in this work. A curve called an alpha-iso-NTCP (normal tissue complication probability) envelope is constructed by connectingpoints belonging to step-like integral DVHs, each corresponding to homoge ...
Leto: 2007 Vir: dLib.si Digitalna knjižnica Slovenije
Functional form comparison between the population and the individual Poisson based TCP models
Colleen Schinkel, Nadia Stavreva, Pavel Stavrev, Marco Carlone, B. Gino Fallone
Izvirni znanstveni članek
Oznake:
In this work, the functional form similarity between the individual and fundamental population TCP models is investigated. Using the fact that both models can be expressed in terms of the geometric parameters gamma50 and D50, we show that they have almost identical functional form for values of gamm ...
Leto: 2007 Vir: dLib.si Digitalna knjižnica Slovenije
3T MR-based treatment planning for radiotherapy of brain lesions
Teodor Stanescu, Jans Hans-Sonke, Pavel Stavrev, B. Gino Fallone
Izvirni znanstveni članek
Oznake:
Purpose. The aim of this work is to develop a complete treatment planning procedure for radiation therapy of intracranial lesions based solely on 3T magnetic resonance imaging (MRI), i.e. MRI simulation. Methods. The proposed 3T MR-based radiotherapy treatment planning procedure consists of converti ...
Leto: 2006 Vir: dLib.si Digitalna knjižnica Slovenije
Design considerations for direct and indirect active matrix flat-panel portal imagers
Martin Lachaine, Biagio Gino Fallone
Izvirni znanstveni članek
Oznake:
Background. Recent advances in thin film transistor (TFT) technology have allowed the construction of active matrix flat-panel imagers (AMFPI) for various medical imaging modalities. Since the design of such systems is still in the development stage, it is unclear what detector characteristics are r ...
Leto: 2001 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 6
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