Imperial College London

ProfessorRobertIstepanian

Faculty of MedicineInstitute of Global Health Innovation

Visiting Professor
 
 
 
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Contact

 

+44 (0)7554 342 293robert.istepanian Website

 
 
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Location

 

Central FacultyFaculty BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

143 results found

Martini MG, Istepanian RSH, Mazzotti M, Philip NYet al., 2010, Robust Multilayer Control for Enhanced Wireless Telemedical Video Streaming, IEEE TRANSACTIONS ON MOBILE COMPUTING, Vol: 9, Pages: 5-16, ISSN: 1536-1233

JOURNAL ARTICLE

Alinejad A, Philip N, Istepanian RSH, 2010, Performance Analysis of Medical Video Streaming over Mobile WiMAX, 32nd Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBC 10), Publisher: IEEE, Pages: 3471-3474, ISSN: 1557-170X

CONFERENCE PAPER

Alinejad A, Philip N, Istepanian RH, 2010, Performance analysis of medical video streaming over mobile WiMAX., Conf Proc IEEE Eng Med Biol Soc, Vol: 2010, Pages: 3471-3474, ISSN: 1557-170X

Wireless medical ultrasound streaming is considered one of the emerging application within the broadband mobile healthcare domain. These applications are considered as bandwidth demanding services that required high data rates with acceptable diagnostic quality of the transmitted medical images. In this paper, we present the performance analysis of a medical ultrasound video streaming acquired via special robotic ultrasonography system over emulated WiMAX wireless network. The experimental set-up of this application is described together with the performance of the relevant medical quality of service (m-QoS) metrics.

JOURNAL ARTICLE

Istepanian RSH, Philip NY, 2009, Healthcare-inspired cognitive radio

Cognitive radio systems is considered as one of the major evolving areas in future wireless communications systems and are expected to enable the introduction of seamless and ubiquitous services in different applications. One of the key applications will be in the mobile healthcare domain. In this paper we present the concept of healthcare inspired cognitive radio systems that describes the potential application of cognitive radio in bandwidth demanding m-health applications. In particular, we consider here the remote ultrasound streaming from roaming ambulance vehicle to remote physician or medical expert. In this paper we focus on describing the concept of using cognitive radio technique to detect either WiMAX or 3G/3.5G cellular wireless network for ultrasound streaming application and future challenges in the design of such system.

CONFERENCE PAPER

Istepanian RSH, Philip NY, Martini MG, 2009, Medical QoS Provision Based on Reinforcement Learning in Ultrasound Streaming over 3.5G Wireless Systems, IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, Vol: 27, Pages: 566-574, ISSN: 0733-8716

JOURNAL ARTICLE

Seto E, Istepanian RSH, Cafazzo JA, Logan A, Sungoor Aet al., 2009, UK and Canadian Perspectives of the Effectiveness of Mobile Diabetes Management Systems, 2009 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-20, Pages: 6584-+, ISSN: 1557-170X

JOURNAL ARTICLE

Istepanian RSH, Zitouni K, Harry D, Moutosammy N, Sungoor A, Tang B, Earle KAet al., 2009, Evaluation of a mobile phone telemonitoring system for glycaemic control in patients with diabetes, JOURNAL OF TELEMEDICINE AND TELECARE, Vol: 15, Pages: 125-128, ISSN: 1357-633X

JOURNAL ARTICLE

Istepanian RSH, Philip NY, 2009, Provisioning of Medical Quality of Services for HSDPA and Mobile WiMAX in Healthcare Applications, Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society, Publisher: IEEE, Pages: 717-720, ISSN: 1557-170X

CONFERENCE PAPER

Seto E, Istepanian RSH, Cafazzo JA, Logan A, Sungoor Aet al., 2009, UK and Canadian perspectives of the effectiveness of mobile diabetes management systems, Pages: 6584-6587

The use of mobile technologies for self-monitoring of blood glucose and blood pressure for diabetes patients is becoming increasingly popular worldwide. This is propelled by the proliferation of the wider usage of mobile phones and other wireless technologies and computing platforms in the healthcare sector. Such technologies can play a pivotal role in chronic disease management and patient self-care. There have been several clinical trials in recent years on mobile diabetes management in UK and Canada. However, no studies to date have addressed and correlated the technological and clinical outcomes concerning the use of mobile chronic disease management systems for diabetes from the UK and Canadian perspectives. In this paper we address some of these correlative issues based on similar clinical trials on mobile type-2 diabetes management systems deployed in these two countries. In particular, the outcomes of these trials supported the use of telemonitoring for effective blood pressure control, but telemonitoring was less effective at managing blood glucose control. Some of the clinical results and challenges are presented together with future work and suggestions that aim to validate a generic platform for mobile diabetes management. ©2009 IEEE.

CONFERENCE PAPER

Istepanian RSH, Sungoor A, Earle KA, 2009, Technical and compliance considerations for mobile health self-monitoring of glucose and blood pressure for patients with diabetes, Pages: 5130-5133

Self-monitoring of blood glucose is an integral part of diabetes care which may be extended to other biometrics. Cellular and short range communication technologies will be important for the routine usage of these systems. However, the issues of follow-up and patient compliance with these emerging systems have not been yet studied evaluated but could be critical to the adoption of these technologies. We evaluated the impact of mobile telemonitoring on the intensification of care on blood pressure control and exposure to hyperglycaemia in patients with diabetes. We randomised 137 patients with diabetes to either mobile telemonitoring (n=72) or usual care patients (n=65) for 9 months. In this paper we present some of the clinical results with focus on blood pressure control hypertension and highlight some of the technical and compliance issues that were encountered. ©2009 IEEE.

CONFERENCE PAPER

Istepanian RSH, Sungoor A, Earle KA, 2009, Technical and Compliance Considerations for Mobile Health Self-monitoring of Glucose and Blood Pressure for patients with Diabetes, 2009 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-20, Pages: 5130-+, ISSN: 1557-170X

JOURNAL ARTICLE

Istepanian RH, Philip NY, 2009, Provisioning of medical quality of services for HSDPA and mobile WiMAX in healthcare applications., Conf Proc IEEE Eng Med Biol Soc, Vol: 2009, Pages: 717-720, ISSN: 1557-170X

Mobile healthcare, or m-health, is an evolutionary concept that provides both mobility and an 'always connected' healthcare functionality. The development of this concept depends on how best the available bandwidth in (HSDPA/HSUPA) and emerging (Mobile WiMAX) networks can be correlated with the relevant medical quality of services issues. In this paper we address and discuss some of these issues and challenges. We also provide an example of a bandwidth demanding application to verify such provision mechanisms.

JOURNAL ARTICLE

Istepanian RSH, Sungoor A, Nebel JC, 2008, Fractal Dimension and Wavelet Decomposition for robust microarray data clustering, Pages: 4106-4109

Microarrays are now established technologies which are considered as key to gene expression analysis. Their study is usually achieved by using clustering techniques. Genomic signal processing is a new area of research that combines genomics with digital signal processing methodologies. In this paper, we present a comparative analysis of two genomic signal processing methods for robust microarray data clustering. Techniques based on Fractal Dimension and Discrete Wavelet Decomposition with Vector Quantization are validated for standard data sets. Comparative analysis of the results indicates that these methods provide improved clustering accuracy compared to some conventional clustering techniques. Moreover, these classifiers don't require any prior training procedures © 2008 IEEE.

CONFERENCE PAPER

Istepanian RSH, Sungoor A, Nebel J-C, 2008, Fractal Dimension and Wavelet Decomposition for Robust Microarray Data Clustering, 2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-8, Pages: 4106-4109, ISSN: 1557-170X

JOURNAL ARTICLE

Istepanian RSH, Philip N, Martini MG, Amso N, Shorvon Pet al., 2008, Subjective and Objective Quality Assessment in Wireless TeleUltrasonography Imaging, 30th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society, Publisher: IEEE, Pages: 5346-+, ISSN: 1557-170X

CONFERENCE PAPER

Istepanian RH, Philip N, Martini MG, Amso N, Shorvon Pet al., 2008, Subjective and objective quality assessment in wireless teleultrasonography imaging., Conf Proc IEEE Eng Med Biol Soc, Vol: 2008, Pages: 5346-5349, ISSN: 1557-170X

Mobile Robotic teleultrasonography is an emerging technology that can be applied in different clinical settings for remote ultrasound scanning without the need of the expert at the point of care. Guaranteed medical image quality for diagnostic purposes and their delivery in bandwidth limited wireless environments is a challenging issue. In this paper we present some of the subjective and objective image analysis acquired from a robotic teleultrasonography system operated remotely by the expert to provide an assessment of these medical imaging measures for such advanced wireless telemedical system.

JOURNAL ARTICLE

Istepanian RSH, 2007, WiMAX for mobile healthcare applications

Introduction to 'Mobile (m-health) and Personalised (P) Healthcare'. The Role of WLAN Technologies for m-health Applications. Some Research Examples and NHS Implementation Challenges. Future Directions and Collaboration Opportunities.

CONFERENCE PAPER

Istepanian RSH, Sungoor A, Nebel JC, 2007, Linear predictive coding and wavelet decomposition for robust microarray data clustering, Pages: 4629-4632, ISSN: 0589-1019

Microarrays are powerful tools for simultaneous monitoring of the expression levels of large number of genes. Their analysis is usually achieved by using clustering techniques. Genomic signal processing is a new area of research that combines genomics with digital signal processing methodologies. In this paper, we present a comparative analysis of two genomic signal processing methods namely Linear Predictive Coding and Discrete Wavelet Decomposition for robust microarray data clustering. Vector quantization is applied to the resultant coefficients to provide the clustering of the data samples. Both techniques were validated for standard data sets. Comparative analyses of the results indicate that these methods provide improved clustering accuracy compared to some conventional clustering techniques. Moreover, there classifiers don't require any prior training procedures © 2007 IEEE.

CONFERENCE PAPER

Alesanco A, García J, Serrano P, Ramos L, Portóles A, Istepanian Ret al., 2007, Clinical quality guarantee in real-time ECG compression, Pages: 39-42, ISSN: 0589-1019

This paper presents a new approach for ECG compression: to set a variable compression threshold to a value equal to the estimated noise in the ECG block. This approach presents several advantages. On the one hand, it solves the problem of where to place the compression threshold so as to obtain a compressed ECG signal preserving all its diagnostic properties. On the other hand, it provides a flexible threshold that is adapted block to block in order to remove noise from the block at the same time it considerably reduces the data to be stored or transmitted, depending on the application where the compression approach is being used. The new approach has been clinically tested using two kind of MOS tests: blind and semi-blind. Clinical evaluation using records from MIT-BIH Arrhythmia database carried out by three expert cardiologists has shown that the compressed signals produced with this compression approach preserves all their clinical diagnostic properties, being rated as very good, the maximum possible score. © 2007 IEEE.

CONFERENCE PAPER

Martini MG, Istepanian RSH, Mazzotti M, Philip Net al., 2007, A cross-layer approach for wireless medical video streaming in robotic teleultrasonography, Pages: 3082-3085, ISSN: 0589-1019

M-health is an emerging area of research integrating emerging wireless technologies with healthcare systems. One of the key challenges in future research in this area, especially from the communications perspective, is medical video streaming over 3G and 4G systems. In this paper, video streaming in a robotic teleultrasonography system through a cross-layer approach based on tailor made controller structures is presented. Simulation results of the proposed system demonstrate the successful performance of the proposed controller structures in this advanced mobile telemedical environment. ©2007 IEEE.

CONFERENCE PAPER

Garcia J, Trigo JD, Alesanco A, Serrano P, Mateo J, Istepanian RSHet al., 2007, Design and evaluation of a wireless decision-support system for heart rate variability study in haemodialysis follow-up procedures, COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE, Vol: 88, Pages: 273-282, ISSN: 0169-2607

JOURNAL ARTICLE

Zou Y, Istepanian R, 2007, An enhanced interoperability architecture for medical sensors in a mobile healthcare environment, Journal on Information Technology in Healthcare, Vol: 5, Pages: 151-161

Mobile healthcare (m-health) is defined as "mobile computing, medical sensor, and communications technologies for healthcare". With emerging new wireless technologies and new devices continually being developed, patients may add or after medical sensors they use for monitoring their health. However, this process may result in failure of the new device to appropriately communicate with the existing wireless data acquisition system. This paper proposes an architectural framework to improve interoperability for m-health applications. The proposed architecture is illustrated with the description of a test platform for a mobile diabetes management system. © The Journal on Information Technology in Healthcare.

JOURNAL ARTICLE

Alesanco A, Garcia J, Serrano P, Ramos L, Portoles A, Istepanian Ret al., 2007, Clinical quality guarantee in real-time ECG compression, 2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, Pages: 39-+, ISSN: 1094-687X

JOURNAL ARTICLE

Istepanian RSH, Sungoor A, Nebel J-C, 2007, Linear predictive coding for enhanced microarray data clustering, IEEE International Workshop on Genomic Processing and Statistics, Publisher: IEEE, Pages: 35-38, ISSN: 2150-3001

CONFERENCE PAPER

Philip N, Istepanian RSH, 2007, Medical quality of service for wireless ultrasound streaming in robotic tele-ultrasonography system, IEEE International Conference on Networking, Sensing and Control, Publisher: IEEE, Pages: 245-250, ISSN: 1810-7869

CONFERENCE PAPER

Martini MG, Istepanian RSH, Mazzotti M, Philip Net al., 2007, A cross-layer approach for wireless medical video streaming in robotic teleultrasonography, 2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, Pages: 3082-+, ISSN: 1094-687X

JOURNAL ARTICLE

Istepanian RSH, Sungoor A, Nebel J-C, 2007, Linear predictive coding and wavelet decomposition for robust microarray data clustering, 2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, Pages: 4629-4632, ISSN: 1094-687X

JOURNAL ARTICLE

Philip N, Wang XH, Istepanian RSH, Greake T, Huang Wet al., 2006, Medical complaints: A solution based on Internet

This paper presents an Internet based solution, MeDispute, to the medical complaints in NHS UK. MeDispute is a system which allows the patients to express their views, comments, and complaints electronically. It's a sub-system of EU supported project known as eDispute, which aims to establish a rapid and effective arbitration procedure to small and medium-sized enterprises (SMEs) engaged in international trade. MeDispute is targeting the complaints at local resolution because the vast majority (around 98%) of complaints do not progress beyond this stage. The intelligent management system in MeDispute will keep the users informed with the progress of the process and help the healthcare provider to solve the complaint efficiently and effectively.

CONFERENCE PAPER

Alesanco A, García J, Serrano P, Ramos L, Istepanian RSHet al., 2006, On the guarantee of reconstruction quality in ECG wavelet codecs, Pages: 6461-6464, ISSN: 0589-1019

Guaranteeing reconstruction quality in ECG lossy compression is essential to obtain signals useful from a clinical point of view. In this paper we discuss the advantages and drawbacks of using two very well known mathematical error measures (PRD and RMS) in order to guarantee quality in threshold wavelet compression codecs that work segmenting the signal into blocks. We use two different error indices to analyze the results: mathematical (RMS global error) and clinical (MOS error). Although mathematical results conclude that guaranteeing RMS is better than PRD, clinical results have shown that the election is subordinated to the signal specific morphology. © 2006 IEEE.

CONFERENCE PAPER

Tan YYE, Philip N, Istepanian RSH, 2006, Fragility issues of medical video streaming over 802.11e-WLAN m-health environments, Pages: 6316-6319, ISSN: 0589-1019

This paper presents some of the fragility issues of a medical video streaming over 802.11e-WLAN in m-health applications. In particular, we present a Medical Channel-Adaptive Fair Allocation (MCAFA)scheme for enhanced QoS support for IEEE 802.11 (WLAN), as a modification for the standard 802.11e Enhanced Distributed Coordination Function (EDCF) is proposed for enhanced medical data performance. The Medical Channel-Adaptive Fair Allocation (MCAFA) proposed extends the EDCF, by halving the contention window (CW) after ζ consecutive successful transmissions to reduce the collision probability when channel is busy. Simulation results show that MCAFA outperforms EDCF in-terms of overall performance relevant to the requirements of high throughput of medical data and video streaming traffic in 3G/WLAN wireless environments. © 2006 IEEE.

CONFERENCE PAPER

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