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| By: elsonds added:27-02-2014 16:08 (modified: 15-05-2014 15:13) |
Overview
Information on research areas and activities can be found on my research website:
Research overview
List of individual projects and links to websites:
- Smart sensing for surgery, funder EPSRC EP/L014149/1
- Robotic assisted surgical guidance and visualisation, funder DTI/TSB/EPSRC
- Realtime in vivo in situ surgical sensing and imaging, funder TSB/EPSRC
- Multi-modal optical imaging applied to robotic assisted endoscopy, funder EPSRC
- Endoscopic FLIM for label-free tissue contrast, funder EPSRC
- Blue laser diode endo-illuminator, funder NEAT/DoH
- Development of miniature wireless GRIN lens video endoscope, funder NEAT/DoH
- PAtient Specific Simulation and PreOperative Realistic Training for liver Surgery (PASSPORT), EU FP7
- OPTIMISE Optical Platform for Therapy and Diagnostic Imaging in Minimally Invasive Surgical Endoscopy, ERC StG
Ultrasound mediated tomography and elastography
| Tracking shear waves in turbid medium by light: theory, simulation and experiment |
Experimental set-up showing (a) shear wave near surface, (b) shear wave at depth.
 Simulated and experimental shear wave propagation results.
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| By: elsonds added:12-03-2014 11:23 (modified: 15-05-2014 15:15) |
| Shear wave elasticity imaging based on acoustic radiation force and optical detection |
 Experiment set-up. DAO: the distance between optical and acoustic axis, which can be adjusted by using the translation
stage (not shown in the figure), AMP: power amplifier, WG:
waveform generator and DG: delay generator. The ultrasound
absorbing material minimises the ultrasound reflection. The
size of the tank is 30 3 20 3 7.8 cm.
 Scanning scheme for the heterogeneous phantom. Position
O indicates the starting position for optical axis in two scanning
runs. A and B are two different acoustic axis positions.
 Optical contrast difference (DC) as a function of time and DAO in three homogenous phantoms of different stiffness. It
can be seen that for a given DAO, the optical signal always peaks earlier and is better defined for a stiffer phantom.
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| By: elsonds added:15-05-2014 15:13 (modified: 15-05-2014 15:15) |
| Viscosity measurement based on shear-wave laser speckle contrast analysis |
Shear-wave laser speckle contrast analysis (SW-LASCA) experimental setup
 Schematic for detecting continuous shear waves with SWLASCA
method.
 Speckle contrast difference due to continuous shear wave generated
by an ultrasound mechanical index (MI) of 1.28. Standard
deviation is produced with three repeated measurements.
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Collaborators
Dr Lei Su, Queen Mary University of London, Single fibre endoscopy, 2016
Professor Hui MA, Tsinghua University, China, Polarization-resolved imaging, 2016
Lipei Song, Institute of Modern Optics, Nankai University, Tianjin, 300071, China, Laser Speckle Contrast Imaging, 2013
Danail Stoyanov, University College London, 2008
Lena Maier-Hein, German Cancer Research Centre (DKFZ), 2011
Professor Laura Marcu, University of California, Davis, Time-resolved fluorescence spectroscopy, 2006
Research Staff
Nabavi,E
Clancy,N
Research Student Supervision
Avila,F, Concurrent Robotic Red-Flagging Framework for GI endoscopy
Lin,J, A self-calibrated endoscopic structured light system using multispectral detection
Zhou,Y, The Applications of Gold Nanoparticles in Photothermal Therapy for Cancer Treatment
Li,R, Ultrasound modulated optical tomography in optical diffuse medium using acoustic radiation force
Tatla,T
Li,S
Qi,J, Development of Optical Polarisation Resolved Endoscopy
Song,L, Endoscopic Laser Speckle Contrast Analysis for Tissue Perfusion
Sauvage,V, Fluorescence and Diffuse Reflectance Spectroscopy and Endoscopy for Tissue Analysis
WOOD,TOBIAS, Dynamic Hyperspectral and Polarized Endoscopic Imaging
KOH,KEVIN, Multimodal Multispectral Optical Endoscopic Imaging with Endomicroscopy for Biomedical Applications