The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Steve Halligan - One of the best experts on this subject based on the ideXlab platform.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:Objective To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer. Following ethical approval, 30 patients with suspected colorectal cancer underwent Perfusion CT using integrated 64 detector PET/CT before surgery. Analysis was performed using Software based on modified distributed parameter analysis (Perfusion Software version 4; Perfusion 4.0), then repeated using the previous version (Perfusion Software version 3; Perfusion 3.0). Tumour blood flow (BF), blood volume (BV), mean transit time (MTT) and permeability surface area product (PS) were determined for identical regions-of-interest. Slice-by-slice and ‘whole tumour’ variance was assessed by Bland-Altman analysis. Mean BF, BV and PS was 20.4%, 59.5%, and 106% higher, and MTT 14.3% shorter for Perfusion 4.0 than Perfusion 3.0. The mean difference (95% limits of agreement) were +13.5 (−44.9 to 72.0), +2.61 (−0.06 to 5.28), −1.23 (−6.83 to 4.36), and +14.2 (−4.43 to 32.8) for BF, BV, MTT and PS respectively. Within subject coefficient of variation was 36.6%, 38.0%, 27.4% and 60.6% for BF, BV, MTT and PS respectively indicating moderate to poor agreement. Software version upgrades of the same Software platform may result in significantly different parameter values, requiring adjustments for cross-version comparison.
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Quantitative tumor perfusion assessment with multidetector CT: are measurements from two Commercial Software packages interchangeable?
Radiology, 2007Co-Authors: Vicky Goh, Steve Halligan, Clive I. BartramAbstract:Purpose: To prospectively determine the level of agreement between tumor blood volume and permeability measurements obtained with two Commercially available perfusion computed tomographic (CT) Software packages. Materials and Methods: This study was performed with institutional review board approval; informed consent was obtained from all participants. A total of 44 patients (24 men, 20 women; mean age, 68 years; range, 28–87 years) with proved colorectal cancer were examined prospectively with multi–detector row CT. A 65-second tumor perfusion study was performed after intravenous bolus injection of contrast material. Tumor blood volume and permeability were determined with two methods: adiabatic approximation of distributed parameter analysis and Patlak analysis. Agreement between the results was determined by using Bland-Altman statistics. Within-patient variation was determined by using analysis of variance. Results: The mean values for permeability and blood volume, respectively, were 13.9 mL · 100 m...
Vicky Goh - One of the best experts on this subject based on the ideXlab platform.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:Objective To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer. Following ethical approval, 30 patients with suspected colorectal cancer underwent Perfusion CT using integrated 64 detector PET/CT before surgery. Analysis was performed using Software based on modified distributed parameter analysis (Perfusion Software version 4; Perfusion 4.0), then repeated using the previous version (Perfusion Software version 3; Perfusion 3.0). Tumour blood flow (BF), blood volume (BV), mean transit time (MTT) and permeability surface area product (PS) were determined for identical regions-of-interest. Slice-by-slice and ‘whole tumour’ variance was assessed by Bland-Altman analysis. Mean BF, BV and PS was 20.4%, 59.5%, and 106% higher, and MTT 14.3% shorter for Perfusion 4.0 than Perfusion 3.0. The mean difference (95% limits of agreement) were +13.5 (−44.9 to 72.0), +2.61 (−0.06 to 5.28), −1.23 (−6.83 to 4.36), and +14.2 (−4.43 to 32.8) for BF, BV, MTT and PS respectively. Within subject coefficient of variation was 36.6%, 38.0%, 27.4% and 60.6% for BF, BV, MTT and PS respectively indicating moderate to poor agreement. Software version upgrades of the same Software platform may result in significantly different parameter values, requiring adjustments for cross-version comparison.
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Quantitative tumor perfusion assessment with multidetector CT: are measurements from two Commercial Software packages interchangeable?
Radiology, 2007Co-Authors: Vicky Goh, Steve Halligan, Clive I. BartramAbstract:Purpose: To prospectively determine the level of agreement between tumor blood volume and permeability measurements obtained with two Commercially available perfusion computed tomographic (CT) Software packages. Materials and Methods: This study was performed with institutional review board approval; informed consent was obtained from all participants. A total of 44 patients (24 men, 20 women; mean age, 68 years; range, 28–87 years) with proved colorectal cancer were examined prospectively with multi–detector row CT. A 65-second tumor perfusion study was performed after intravenous bolus injection of contrast material. Tumor blood volume and permeability were determined with two methods: adiabatic approximation of distributed parameter analysis and Patlak analysis. Agreement between the results was determined by using Bland-Altman statistics. Within-patient variation was determined by using analysis of variance. Results: The mean values for permeability and blood volume, respectively, were 13.9 mL · 100 m...
Dimitris A Pados - One of the best experts on this subject based on the ideXlab platform.
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Addressing next-generation wireless challenges with Commercial Software-defined radio platforms
IEEE Communications Magazine, 2016Co-Authors: George Sklivanitis, Adam Gannon, Stella N. Batalama, Dimitris A PadosAbstract:We review Commercially available Software- defined radio platforms and classify them with respect to their ability to enable rapid prototyping of next-generation wireless systems. In particular, we first discuss the research challenges imposed by the latest Software-defined radio enabling technologies including both analog and digital processing hardware. Then we present the state-of-the-art Commercial Software-defined radio platforms, describe their Software and hardware capabilities, and classify them based on their ability to enable rapid prototyping and advance experimental research in wireless networking. Finally, we present three experimental testbed scenarios (wireless terrestrial, aerial, and underwater) and argue that the development of a system design abstraction could significantly improve the efficiency of the prototyping and testbed implementation process.
Alma Orucevicalagic - One of the best experts on this subject based on the ideXlab platform.
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usage of open source in Commercial Software product development findings from a focus group meeting
Product Focused Software Process Improvement, 2011Co-Authors: Martin Host, Alma Orucevicalagic, Per RunesonAbstract:Open source components can be used as one type of Software component in development of Commercial Software. In development using this type of component, potential open source components must first be identified, then specific components must be selected, and after that selected components should maybe be adapted before they are included in the developed product. A company using open source components must also decide how they should participate in open source project from which they use Software. These steps have been investigated in a focus group meeting with representatives from industry. Findings, in the form of recommendations to engineers in the field are summarized for all the mentioned phases. The findings have been compared to published literature, and no major differences or conflicting facts have been found.
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a systematic review of research on open source Software in Commercial Software product development
Information & Software Technology, 2011Co-Authors: Martin Host, Alma OrucevicalagicAbstract:Context: The popularity of the open source Software development in the last decade, has brought about an increased interest from the industry on how to use open source components, participate in the open source community, build business models around this type of Software development, and learn more about open source development methodologies. There is a need to understand the results of research in this area. Objective: Since there is a need to understand conducted research, the aim of this study is to summarize the findings of research that has ben carried out on usage of open source components and development methodologies by the industry, as well as companies' participation in the open source community. Method: Systematic review through searches in library databases and manual identification of articles from the open source conference. The search was first carried out in May 2009 and then once again in May 2010. Results: In 2009, 237 articles were first found, from which 19 were selected based on content and quality, and in 2010, 76 new articles were found from which four were selected. Twenty three articles were identified in total. Conclusions: The articles could be divided into four categories: open source as part of component based Software engineering, business models with open source in Commercial organization, company participation in open source development communities, and usage of open source processes within a company.
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a systematic review of research on open source Software in Commercial Software product development
Evaluation and Assessment in Software Engineering, 2010Co-Authors: Martin Host, Alma OrucevicalagicAbstract:Background: The popularity of the open source Software development in the last decade, has brought about an increased interest from the industry on how to use open source components, participate in the open source community, build business models around this type of Software development, and learn more about open source development methodologies. Aim: The aim of this study is to review research carried out on usage of open source components and development methodologies by the industry, as well as companies' participation in the open source community. Method: Systematic review through searches in library databases and manual identification of articles from the open source conference. Results: 19 articles were identified. Conclusions: The articles could be divided into four categories: open source as part of component based Software engineering, business models with open source in Commercial organization, company participation in open source development communities, and usage of open source processes within a company.
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a systematic review of research on open source Software in Commercial Software product development
[Host publication title missing]; (2010), 2010Co-Authors: Martin Host, Alma OrucevicalagicAbstract:Background: The popularity of the open source Software development in the last decade, has brought about an increased interest from the industry on how to use open source components, participate in the open source community, build business models around this type of Software development, and learn more about open source development methodologies. Aim: The aim of this study is to review research carried out on usage of open source components and development methodologies by the industry, as well as companies’ participation in the open source community. Method: Systematic review through searches in library databases and manual identification of articles from the open source conference. Results: 19 articles were identified. Conclusions: The articles could be divided into four categories: open source as part of component based Software engineering, business models with open source in Commercial organization, company participation in open source development communities, and usage of open source processes within a company. (Less)
Manu Shastry - One of the best experts on this subject based on the ideXlab platform.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:Objective To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer.
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Commercial Software upgrades may significantly alter perfusion ct parameter values in colorectal cancer
European Radiology, 2011Co-Authors: Vicky Goh, Manu Shastry, Alec Engledow, Jonathan Reston, David Wellsted, Jacqui Peck, Raymondo Endozo, Manuel Rodriguezjusto, Stuart A Taylor, Steve HalliganAbstract:To determine how Commercial Software platform upgrades impact on derived parameters for colorectal cancer. Following ethical approval, 30 patients with suspected colorectal cancer underwent Perfusion CT using integrated 64 detector PET/CT before surgery. Analysis was performed using Software based on modified distributed parameter analysis (Perfusion Software version 4; Perfusion 4.0), then repeated using the previous version (Perfusion Software version 3; Perfusion 3.0). Tumour blood flow (BF), blood volume (BV), mean transit time (MTT) and permeability surface area product (PS) were determined for identical regions-of-interest. Slice-by-slice and ‘whole tumour’ variance was assessed by Bland-Altman analysis. Mean BF, BV and PS was 20.4%, 59.5%, and 106% higher, and MTT 14.3% shorter for Perfusion 4.0 than Perfusion 3.0. The mean difference (95% limits of agreement) were +13.5 (−44.9 to 72.0), +2.61 (−0.06 to 5.28), −1.23 (−6.83 to 4.36), and +14.2 (−4.43 to 32.8) for BF, BV, MTT and PS respectively. Within subject coefficient of variation was 36.6%, 38.0%, 27.4% and 60.6% for BF, BV, MTT and PS respectively indicating moderate to poor agreement. Software version upgrades of the same Software platform may result in significantly different parameter values, requiring adjustments for cross-version comparison.
