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PhD studentship – Image Analysis in Ultrasound Imaging


   Institute of Biological Chemistry, Biophysics and Bioengineering

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  Dr Vassilis Sboros  No more applications being accepted  Funded PhD Project (European/UK Students Only)

About the Project

Supervisors: Dr Vassilis Sboros and Dr Weiping Lu (both Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot Watt University), Dr Yoan Altmann (Institute of Sensors Signals and Systems, Heriot Watt University), Prof Alan McNeill (Department of Urology, Western General Hospital and University of Edinburgh).

Prostate cancer incidence and deaths from the disease have both significantly increased in recent years. Current diagnostic approaches are unpleasant, costly and invasive. Additionally, many men undergo radical treatments that can have long-term detriment on their quality of life because current methods to characterise these tumours are not always able to predict the patient’s likely disease progression with sufficient confidence.

We have proposed a new image analysis method based on diagnostic ultrasound in order to find prostate disease early. Since cancer has different blood flow compared to normal prostate the proposed technology aims to provide a 10-fold improvement in the detail in mapping the blood flow (i.e. from half a millimetre to a 20th of a mm). This unique method will help determine the state of a tumour. We will use images from volunteer prostate patients in order to develop our image analysis method and subsequently assess its potential for prostate cancer diagnosis.

Specifically, the project will investigate a method whereby images of microvessels are formed by the tracks of individual microbubbles that are available in the blood stream. Particle detection, segmentation and tracking will be developed to suit ultrasound imaging requirements. This will be based on robust integrated algorithms generated for optical microscopy. Subsequently, information on the vascular architecture in microscopic detail will be generated. A comparison between normal (prostate cancer) and abnormal tissue (normal prostate) is the overall aim of the project. Note that no imaging modality can reach such resolution, and if successful the outcomes from this project will revolutionised medical imaging.

The candidate will work with physicists, engineers, life scientists and as part of an international collaborative network that also includes significant industrial partners (Philips Medical Imaging Ltd, BK Medical, and Lantheus Medical Imaging Inc), and it is anticipated that the completion of the PhD will provide a number of employment opportunities. Desirable student background is sought in signal or image processing, Matlab programming, applied mathematics and statistics. This 3yr PhD studentship has annual stipend as set by the UKRI. The studentship is only available to UK nationals or students from EU countries who have settled status and have been resident in the UK for 3 years prior to the start of the studentship. Consumables and contribution to travel expenses are included. Fees for non-EU applicants are not covered.

How to apply

For informal enquiries and applications including a CV, please contact Vassilis Sboros ([Email Address Removed]). Tel: 0131 451 8015

The studentship should start in January 2023.


References

Kanoulas E et al. Super-resolution contrast enhanced ultrasound methodology for the identification of in-vivo vascular dynamics in 2D. Investigative Radiology 2019; 54: 500-516.
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