Home » Consultants

Professor. J Mark Ryan

Professor. J Mark Ryan MB, BCh, FRCR (London), FFRRCSI, EBIR, FCIRSE graduated in Medicine from Trinity College Dublin in 1988.

He completed Specialist Fellowship Training in Interventional Radiology and Abdominal Imaging at Massachusetts General Hospital, Harvard Medical School, Boston. He was an Assistant Professor of Radiology at Hahnemann University, Philadelphia in 1997 and an Assistant Professor of Radiology at Duke University Medical Center in North Carolina from 1998-2004.

He is Clinical Professor at Trinity College Dublin and a Fellow of the Cardiovascular Interventional Radiological Society of Europe (FCIRSE), and holds a European Board of Interventional Radiology (EBIR) qualification.

Professor Ryan specialises in delivering minimally invasive oncological and endovascular treatments for many forms of cancer, vascular malformations, liver disease, and for bleeding and thrombotic disorders. He has a particular interest in minimally invasive treatments for cancer including chemoembolization and ablation therapies. He has specialist expertise in the treatment of vascular malformations in paediatric and adult populations, as well as a clinical research interest in the endovascular management of haemorrhage and thrombosis,

Professor Ryan has been actively involved in academics and clinical research for over 20 years, during which time he has published and presented more than 165 peer-reviewed scientific papers, editorials, articles, presentations and book chapters with > 2260 citations in the medical literature (Google Scholar: h-index 25, i10 index 44). Professor Ryan has lectured in Europe, Asia and the USA and has been on Faculty for international conferences for over two decades including The Society of Interventional Radiology (SIR), The International Symposium on Endovacular Therapies (ISET), The Cardiovascular Interventional Radiology Society of Europe (CIRSE),The European Congress of Radiology (ECR), Global Embolization Symposium and Technologies (GEST) and European (ECIO) and World Congresses of Interventional Oncology (WCIO).

Professor Ryan is a medical volunteer and  a member of The Board of Directors with Operation Childlife (www.operationchildlife.com) a medical affiliate to The Christina Noble Childrens Foundation.

Dr Niall McEniff

Dr. McEniff MB, FFR RCSI FRCR (UK) graduated in medicine from University College Dublin in 1987. After four years on the Irish national radiology scheme he moved to the USA where he did two years of Specialist Training in Interventional Radiology at the New England Medical Center and Tufts University Medical School. He was appointed as a Consultant Interventional Radiologist in the Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts.

He has been a Consultant Interventional Radiologist since 1997 and has a particular interest in embolotherapy and minimally invasive cancer treatments. He is a specialist in Fibroid Embolisation and runs a dedicated fibroid clinic in St James’s Hospital and Beacon Hospital.

Dr McEniff has a subspecialty interest in minimally invasive techniques for older patients and is the lead Radiologist with the medicine for the elderly group in St James’s.

Dr Michael Guiney

Dr Guiney MB, MRCPI, FRCR, FFRCSI completed his basic Radiology training in Adelaide and Meath and St James Hospitals, Dublin. Having done Fellowships in both Interventional Radiology and Cross Sectional Imaging in Boston and Harvard University Hospitals, he then took up a Consultant post in University College Hospital in London for two years and then in Cork University Hospital for a further two years.

He is a Consultant Radiologist in Beacon Hospital and in St James Hospital since 2006. His areas of interest include all aspects of Interventional Radiology in particular onco-radiology, ablative therapy and targeted embolotherapy. He is also interested in vascular imaging and cardiac CT and CT colonography.

Dr Guiney is the clinical lead of the St James’s Hospital radiology audit programme and the RCSI educational coordinator.