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Prof Leen currently works as a Consultant Interventional Radiologist at Hammersmith, Charing Cross and St Mary's NHS hospitals, as well as the Princess Grace Hospital privately. He is also Professor of Radiology at Imperial College London and has over 15 years’ experience in ablative therapies.

He leads a clinical ultrasound group with a focus on microbubble ultrasound assessment. He has a specialist interest in ablative therapies for cancer of the kidneys, liver, lung and pancreas and has established and developed a number of percutaneous ablative therapies including the new cancer treatment, NanoKnife, a thermal-based and irreversible electroporation technique. Alongside his interest in novel oncological ablative therapies, Prof Leen has a particular interest in liver imaging, new diagnostic applications in cancer as well as the development of navigation and robotics for percutaneous ablative therapies. He has a long-standing interest in altered hepatic haemodynamics and micro-metastases.

Dr Shahid Khan is a Consultant Physician at St Mary’s and Hammersmith Hospitals and a Clinical Senior Lecturer at Imperial College London, having been appointed in 2007. He is a Consultant in Gastroenterology with Specialist Accreditation in Hepatology. He is also a Trainer in Endoscopy.

Background Dr Khan graduated from Guy’s and St Thomas’ Hospitals Medical School in 1994. He completed specialist training in Gastroenterology, Hepatology and General Medicine in 2007 in North-West London and in 2003 he was awarded a PhD from the University of London for studies in liver cancer. Dr Khan became a Fellow of the Royal College of Physicians (FRCP) in 2010.

International Profile Dr Khan has lectured on liver and gastrointestinal disease nationally and internationally at Hepatology and Gastroenterology conferences. He is the lead author on the National guidelines for biliary cancer and was on the European panel for the International guidelines. Dr Khan has also given several presentations and lectures on various aspects of liver and gastrointestinal disease at national and international conferences, including the British of Society Gastroenterology, British and European Associations for the Study of the Liver, the American Association for the Study of the Liver, the International Liver Cancer Association and the Royal Society of Medicine.

Research Dr Khan is the Academic Lead at Imperial College for Liver Cancer. He is also a Senior Lecturer at Imperial College London where he leads a research team investigating early biomarkers in liver disease and supervises several PhD students. His research areas include the epidemiology, aetiopathogenesis, metabolomic, proteomic and genomic analyses of liver cancer. He is recipient of several national research grants. Dr Khan has published over 50 articles in the international medical literature including original research articles, reviews and book chapters.