Dr Sevan Harput


NameDr Sevan Harput
Job titleLecturer in RF Systems & Signal Processing
Organisational UnitElectrical and Electronic Engineering

Research outputs

Poisson Statistical Model of Ultrasound Super-Resolution Imaging Acquisition Time

Christensen-Jeffries, K., Brown, J., Harput, S., Zhang, G., Zhu, J., Tang, M-X., Dunsby, C. and Eckersley, R.J. (2019). Poisson Statistical Model of Ultrasound Super-Resolution Imaging Acquisition Time. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

High frame rate contrast enhanced ultrasound imaging for slow flow: influence of ultrasound pressure and flow rate on bubble disruption and image persistence

Zhu, J., Lin, S., Leow, C.H., Rowland, E.M., Riemer, K., Harput, S., Weinberg, P.D. and Tang, M-X. (2019). High frame rate contrast enhanced ultrasound imaging for slow flow: influence of ultrasound pressure and flow rate on bubble disruption and image persistence. Ultrasound in Medicine and Biology. 45 (9), pp. 2456-2470.

Super resolution ultrasound image filtering with machine learning to reduce the localization error

Harput, S., Fong, L.H., Stanziola, A., Zhang, G., Toulemonde, M., Zhou, J., Christensen-Jeffries, K., Brown, J., Eckersley, R., Grisan, E., Dunsby, C. and Tang, M. (2019). Super resolution ultrasound image filtering with machine learning to reduce the localization error. IEEE International Ultrasonics Symposium 2019. Glasgow 09 2009 - 06 Oct 2019 Institute of Electrical and Electronics Engineers (IEEE).

High frame rate tri-plane echocardiography with spiral arrays: from simulation to real-time implementation

Ramamilli, A., Harput, S., Bizy, S., Boni, E., Eckersley, R.J., Tortoli, P. and D'hooge, J. (2019). High frame rate tri-plane echocardiography with spiral arrays: from simulation to real-time implementation. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

3-D Super-Resolution Ultrasound Imaging with a 2-D Sparse Array

Harput, S., Christensen-Jeffries, K., Ramalli, A., Brown, J., Zhu, J., Zhang, G., Leow, C-H., Toulemonde, M., Boni, E., Tortoli, P., Eckersley, R.J., Dunsby, C. and Tang, M-X. (2019). 3-D Super-Resolution Ultrasound Imaging with a 2-D Sparse Array. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

3D Super-Resolution US Imaging of Rabbit Lymph Node Vasculature in Vivo by Using Microbubbles

Zhu, J., Rowland, E.M., Harput, S., Riemer, K., Leow, C.H., Clark, B., Lim, A., Christensen-Jeffries K, Zhang, G., Brown, J., Dunsby, C., Eckerslet, R.J., Weinberg, P.D. and Tang, M.X (2019). 3D Super-Resolution US Imaging of Rabbit Lymph Node Vasculature in Vivo by Using Microbubbles. Radiology. 291 (3), pp. 642-650.

Investigation of Microbubble Detection Methods for Super-Resolution Imaging of Microvasculature

Brown, J., Christensen-Jeffries, K., Harput, S., Zhang, G., Zhu, J., Dunsby, C., Tang, M-X. and Eckersley, R.J. (2019). Investigation of Microbubble Detection Methods for Super-Resolution Imaging of Microvasculature. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66 (4), pp. 676-691.

Fast acoustic wave sparsely activated localization microscopy (fast-AWSALM): ultrasound super-resolution using plane-wave activation of nanodroplets

Zhang, G., Harput, S., Hu, H., Christensen-Jeffries, K., Zhu, J., Brown, J., Leow, C.H., Eckersley, R., Dunsby, R. and Tang, M-X. (2019). Fast acoustic wave sparsely activated localization microscopy (fast-AWSALM): ultrasound super-resolution using plane-wave activation of nanodroplets. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66 (6), pp. 1039-1046.

3D Ultrasound Image Guidance and Therapy Through the Rib Cage with a Therapeutic Random Phased Array

Zubair, M., Harput, S. and Dickinson, R. J. (2018). 3D Ultrasound Image Guidance and Therapy Through the Rib Cage with a Therapeutic Random Phased Array. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8579835

3D In Vitro Ultrasound Super-Resolution Imaging using a Clinical System

Christensen-Jeffries, K., Harput, S., Brown, J., Zhang, G., Zhu, J., Tang, M., Dunsby, C. and Eckersley, R. (2018). 3D In Vitro Ultrasound Super-Resolution Imaging using a Clinical System. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 doi:10.1109/ULTSYM.2018.8580144

New Denoising Unsharp Masking Method for Improved Intima Media Thickness Measurements with Active Contour Segmentation

Moubark, A.M., Cowell, D.M.J., Harput, S. and Freear, S. (2018). New Denoising Unsharp Masking Method for Improved Intima Media Thickness Measurements with Active Contour Segmentation. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8579733

Fast Acoustic Wave Sparsely Activated Localization Microscopy (Fast-AWSALM) Using Octafluoropropane N Anodroplets

Zhang, G., Harput, S., Hu, H., Christensen-Jeffries K, Zhu, J., Brown, J., Leow, C.H., Dunsby, C., Eckersley, R.J. and Tang, M.X. (2018). Fast Acoustic Wave Sparsely Activated Localization Microscopy (Fast-AWSALM) Using Octafluoropropane N Anodroplets. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8580192

Development of Simultaneous Optical Imaging and Super-Resolution Ultrasound to Improve Microbubble Localization Accuracy

Harput, S. (2018). Development of Simultaneous Optical Imaging and Super-Resolution Ultrasound to Improve Microbubble Localization Accuracy. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8580212

3-D Motion Correction for Volumetric Super-Resolution Ultrasound Imaging

Harput, S., Christensen-Jeffries K, Brown, J., Zhu, J., Zhang, G., Eckersley, R.J., Dunsby, C. and Tang, M.X. (2018). 3-D Motion Correction for Volumetric Super-Resolution Ultrasound Imaging. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8580145

3D in Vitro Ultrasound Super-Resolution Imaging Using a Clinical System

Christensen-Jeffries, K, Harput, S., Brown, J., Zhang, G., Zhu, J., Tang, M.X., Dunsby, C. and Eckersley, R. (2018). 3D in Vitro Ultrasound Super-Resolution Imaging Using a Clinical System. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8580144

Combining Acoustic Trapping with Plane Wave Imaging for Localized Microbubble Accumulation in Large Vessels

Nie, L., Harput, S., Cowell, D.M.J., Carpenter, T.M., Mclaughlan, J.R. and Freear, S. (2018). Combining Acoustic Trapping with Plane Wave Imaging for Localized Microbubble Accumulation in Large Vessels. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 65 (7), pp. 1193-1204.

Acoustic wave sparsely-activated localization microscopy (AWSALM): super-resolution ultrasound imaging using acoustic activation and deactivation of nanodroplets

Zhang, G., Harput, S., Lin, S., Christensen-Jeffries, K, Leow, C.H., Brown, J., Dunsby, C., Eckersley, R. and Tang, M. (2018). Acoustic wave sparsely-activated localization microscopy (AWSALM): super-resolution ultrasound imaging using acoustic activation and deactivation of nanodroplets. Applied Physics Letters. 113.

Two-stage motion correction for super-resolution ultrasound imaging in human lower limb

Harput, S., Christensen-Jeffries, K., Brown, J., Yuanwei, L., Williams, K.J., Davies, A.H., Eckersley, R., Dunsby, C.W. and Tang, M. (2018). Two-stage motion correction for super-resolution ultrasound imaging in human lower limb. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 65 (5), pp. 803-814.

3-D super-resolution ultrasound (SR-US) imaging using a 2-D sparse array with high volumetric imaging rate

Harput, S., Christensen-Jeffries, K., Brown, J., Zhu, J., Zhang, G., Leow, C.H., Toulemonde, M., Ramalli, A., Boni, E., Tortoli, P., Eckersley, R.J., Dunsby, C. and Tang, M. (2018). 3-D super-resolution ultrasound (SR-US) imaging using a 2-D sparse array with high volumetric imaging rate. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE).

3-D motion correction for volumetric super-resolution ultrasound (SR-US) imaging

Harput, S., Christensen-Jeffries, K, Brown, J., Zhu, J., Zhang, G., Eckersley, R.J., Dunsby C. and Tang, M. (2018). 3-D motion correction for volumetric super-resolution ultrasound (SR-US) imaging. 2018 IEEE International Ultrasonics Symposium (IUS). Kobe, Japan 22 - 25 Oct 2018 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2018.8580145

Two Stage Sub-Wavelength Motion Correction in Human Microvasculature for CEUS Imaging

Harput, S., Christensen-Jeffries, K, Li, Y., Brown, J., Eckersley, R.J., Dunsby, C. and Tang, M-X. (2017). Two Stage Sub-Wavelength Motion Correction in Human Microvasculature for CEUS Imaging. 2017 IEEE International Ultrasonics Symposium (IUS). Washington, DC, USA 06 - 09 Sep 2019 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2017.8092538

A phase velocity filter for the measurement of lamb wave dispersion

Adams, C., Harput, S., Cowell, D. and Freear, S. (2017). A phase velocity filter for the measurement of lamb wave dispersion. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728797

The dynamic excitation of a granular chain: Contact mechanics finite element analysis and experimental validation

GĂ©lat, P, Yang, J., Akanji, O., Thomas, P.J., Hutchins, D., Harput, S., Freear, S. and Saffari, N. (2017). The dynamic excitation of a granular chain: Contact mechanics finite element analysis and experimental validation. The Journal of the Acoustical Society of America.

Acoustic microbubble trapping in blood mimicking fluid

Nie, L., Harput, S., McLaughlan, J.R., Cowell, D.M.J., Carpenter, T. and Freear, S. (2017). Acoustic microbubble trapping in blood mimicking fluid. 2017 IEEE International Ultrasonics Symposium (IUS). Washington, DC, USA 06 - 09 Sep 2019 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2017.8092590

Elevation resolution enhancement in 3D photoacoustic imaging using FDMAS beamforming

Alshaya, A., Harput, S., Cowell, D.M.J., Carpenter, T., McLaughlan, J. and Freear, S. (2017). Elevation resolution enhancement in 3D photoacoustic imaging using FDMAS beamforming. 2017 IEEE International Ultrasonics Symposium (IUS). Washington, DC, USA 06 - 09 Sep 2019 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2017.8092412

Microbubble Axial Localization Errors in Ultrasound Super-Resolution Imaging

Christensen-Jeffries, K, Harput, S., Brown, J., Wells, P.N.T., Aljabar, P., Dunsby, C.W., Tang, M. and Eckersley, R.J. (2017). Microbubble Axial Localization Errors in Ultrasound Super-Resolution Imaging. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 64 (11), p. 2017.

Generation of ultrasound pulses in water using granular chains with a finite matching layer

Harput, S., McLaughlan, J., Cowell, D.M.J., Gelat, P., Saffari, N., Yang, J., Akanji, O., Thomas, P.J, Hutchins, D.A. and Freear, S. (2017). Generation of ultrasound pulses in water using granular chains with a finite matching layer. Physical Review Applied. 8 (054032).

Two Stage Sub-Wavelength Motion Correction in Human Microvasculature for CEUS Imaging

Harput, S., Christensen-Jeffries, K., Li, Y., Brown, J., Eckersley, R.J., Dunsby, C. and Tang, M-X. (2017). Two Stage Sub-Wavelength Motion Correction in Human Microvasculature for CEUS Imaging. 2017 IEEE International Ultrasonics Symposium (IUS). Washington, DC, USA 06 - 09 Sep 2019 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2017.8091703

Ultrasound Super-Resolution with Microbubble Contrast Agents

Harput, S., Christensen-Jeffries, K, Brown, J., Eckersley, R.J., Dunsby, C. and Tan, M-X. (2017). Ultrasound Super-Resolution with Microbubble Contrast Agents. IEEE SENSORS. Glasgow, UK 29 Oct - 01 Nov 2017 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICSENS.2017.8234244

Localisation of Multiple Non-Isolated Microbubbles with Frequency Decomposition in Super-Resolution Imaging

Harput, S., Christensen-Jeffries, K., Brown, J., Eckersley, R.J., Dunsby, C. and Tang, M-X. (2017). Localisation of Multiple Non-Isolated Microbubbles with Frequency Decomposition in Super-Resolution Imaging. 2017 IEEE International Ultrasonics Symposium (IUS). Washington, DC, USA 06 - 09 Sep 2019 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2017.8091553

Analysis of solitary wave impulses in granular chains using ultrasonic excitation

Yang, J., Hutchins, D.A., Akanji, O., Thomas, P.J., Davis, L.A.J., Harput, S., Gelat, P., Freear, S. and Saffari, N. (2016). Analysis of solitary wave impulses in granular chains using ultrasonic excitation. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 93 (063001).

Performance of Switched Mode Arbitrary Excitation using Harmonic Reduction Pulse Width Modulation (HRPWM) in Array Imaging Applications

Cowell, D.M.J., Carpenter, T., Smith, P., Adams, C., Harput, S. and Freear, S. (2016). Performance of Switched Mode Arbitrary Excitation using Harmonic Reduction Pulse Width Modulation (HRPWM) in Array Imaging Applications. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728816

The dynamic excitation of a granular chain for biomedical ultrasound applications: contact mechanics finite element analysis and validation

Gelat, P., Yang, J., Thomas, P.J., Hutchins, D.A., Akanji, O., Davis, L.A.J., Freear, S., Harput, S. and Saffari, N. (2016). The dynamic excitation of a granular chain for biomedical ultrasound applications: contact mechanics finite element analysis and validation. Journal of Physics: Conference Series. 684 (1).

Characterisation of Liposome-Loaded Microbubble Populations for Subharmonic Imaging

McLaughlan, J.R., Harput, S., Abou-Saleh, R.H., Payman, S.A., Evans, S. and Freear, S. (2016). Characterisation of Liposome-Loaded Microbubble Populations for Subharmonic Imaging. Ultrasound in Medicine and Biology. 43 (1), pp. 346-356.

Velocity estimation error reduction in stenosis areas using a correlation correction method

Nie, L., Harput, S., Cowell, D.M.J. and Freear, S. (2016). Velocity estimation error reduction in stenosis areas using a correlation correction method. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728627

Clutter noise reduction in B-Mode image through mapping and clustering signal energy for better cyst classification

Moubark, A.M., Harput, S., Cowell, D.M.J. and Freear, S. (2016). Clutter noise reduction in B-Mode image through mapping and clustering signal energy for better cyst classification. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728860

Plane wave imaging challenge

Moubark, A.M., Harput, S. and Cowell, D.M.J. (2016). Plane wave imaging challenge. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728893

Enhancement of contrast and resolution of B-mode plane wave imaging (PWI) with non-linear filtered delay multiply and sum (FDMAS) beamforming

Moubark, A.M., Alomari, Z., Harput, S., Cowell, D.M.J. and Freear, S. (2016). Enhancement of contrast and resolution of B-mode plane wave imaging (PWI) with non-linear filtered delay multiply and sum (FDMAS) beamforming. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728536

Improved shear wave-front reconstruction method by aligning imaging beam angles with shear-wave polarization: Applied for shear compounding application

Hyder, S., Harput, S., Alomari, Z., Cowell, D.M.J., McLaughlan, J. and Freear, S. (2016). Improved shear wave-front reconstruction method by aligning imaging beam angles with shear-wave polarization: Applied for shear compounding application. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728536

Simultaneous trapping and imaging of microbubbles at clinically relevant flow rates

Harput, S., Nie, L., Cowell, D.M.J., Carpenter, T., Raiton, B., McLaughlan, J. and Freear, S. (2016). Simultaneous trapping and imaging of microbubbles at clinically relevant flow rates. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728393

Coupling of wideband impulses generated by granular chains into liquids for biomedical applications

Harput, S., Freear, S., Gelat, P., Saffari, N., Yang, J., Akanji, O., Thomas, P.J. and Hutchins, D.A. (2016). Coupling of wideband impulses generated by granular chains into liquids for biomedical applications. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728481

Spatial Resolution and Contrast Enhancement in Photoacoustic Imaging with Filter Delay Multiply and Sum Beamforming Technique

Alshaya, A., Harput, S., Moubark, A.M., Cowell, D.M.J., McLaughlan, J. and Freear, S. (2016). Spatial Resolution and Contrast Enhancement in Photoacoustic Imaging with Filter Delay Multiply and Sum Beamforming Technique. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728682

Specimen-agnostic guided wave inspection using recursive feedback

Adams, C., Harput, S., Cowell, D., Freear, S. and Charutz, D.M. (2016). Specimen-agnostic guided wave inspection using recursive feedback. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ULTSYM.2016.7728811

The Effect of Boundary Conditions on Resonant Ultrasonic Spherical Chains

Akanji, O, Yang, J., Hutchins, D., Thomas, P.J., Davis, L.A.J., Harput, S., Freear, S., Gelat, P.N. and Saffari, N. (2016). The Effect of Boundary Conditions on Resonant Ultrasonic Spherical Chains. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63 (11), pp. 1957-1966.

An adaptive array excitation scheme for the unidirectional enhancement of guided waves

Adams, C., Harput, S., Cowell, D., Carpenter, T.M., Charutz, D.M. and Freear, S. (2016). An adaptive array excitation scheme for the unidirectional enhancement of guided waves. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 64 (2), pp. 441-451.

Contrast-enhanced ultrasound imaging with chirps: Signal processing and pulse compression

Harput, S., McLaughlan, J., Cowell, D. and Freear, S. (2015). Contrast-enhanced ultrasound imaging with chirps: Signal processing and pulse compression. 2015 IEEE International Ultrasonics Symposium (IUS). Taipei, Taiwan 21 Oct - 24 Nov 2015 doi:10.1109/ULTSYM.2015.0160

Ultrasonic propagation in finite-length granular chains

Hutchins, D.A., Yang, J., Akanji, O., Thomas, P.J., Davis, L.A.J., Freear, S., Harput, S., Saffari, N. and Gelat, P. (2015). Ultrasonic propagation in finite-length granular chains. Ultrasonics. 69, pp. 215-223.

Superharmonic imaging with chirp coded excitation: filtering spectrally overlapped harmonics

Harput, S., McLaughlan, J. and Cowell, D. M. J. (2014). Superharmonic imaging with chirp coded excitation: filtering spectrally overlapped harmonics. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 61 (11), pp. 1802-1814.

Ultrasonic Phased Array Device for Acoustic Imaging in Air

Harput, S. and Bozkurt, A. (2008). Ultrasonic Phased Array Device for Acoustic Imaging in Air. IEEE Sensors Journal. 8 (11), pp. 1755 - 1762.
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