NHS - Gamma Knife

The Team

Meet the radiosurgery team

The Team 1
The Team 2

Mr Matthias Radatz

Mr M.W.R. Radatz, MD FRCS

Consultant in Neurosurgery / Stereotactic Radiosurgery

Matthias Radatz became Clinical Director Of the National Centre for Stereotactic Radiosurgery in June 2013.

He was elected as Chairman of the Stereotactic Radiosurgery CRG (Clinical Reference Group) on the 12th July 2013. He qualified in 1991 and for three years worked as a neurosurgical trainee in the Krankenhaus Neukoelln, Berlin in Germany.

This was a busy teaching hospital with its own Casualty and Trauma Centre.   During this time he was responsible for the Neuro-ITU and developed a special interest in subarachnoid haemorrhage, plus gaining experience in stereotactic and functional neurosugery.

In February 1994 he took up an appointment as Registrar in the Neurosurgical University Department here at the Royal Hallamshire Hospital in Sheffield.  He extended his experience to include Stereotactic Radiosurgery using the Gamma-Knife and gained promotion to Senior Registrar in May 1995.

In June 1996 he returned to Berlin, to the Krankenhaus Neukoelln as Senior Registrar and was involved in establishing Image Guided Neurosurgery in his unit.

In October 1997 he was appointed as Specialist Registrar in the Neurosugical Department, Radcliffe Hospital, Oxford.  This was a post he sought in order to develop further his interests in Stereotactic and Functional Neurosurgery.

He was appointed Consultant Neurosurgeon and became a Fellow of the Royal College of Surgeons in 1999. He has a  special interest in both Stereotactic Radiosurgery and Stereotactic Functional Neurosurgery, here at the Royal Hallamshire Hospital.

Mr Jeremy Rowe

Mr JG Rowe MA DM FRCS(SN)

Consultant in Neurosurgery / Stereotactic Radiosurgery

Jeremy Rowe qualified in 1988 from Oxford University and subsequently worked both in Oxford and East Anglia becoming a fellow of the Royal College of Surgery of England in 1992. He was awarded an MRC research fellowship which he held at Oxford University working on magnetic resonance techniques.

This built an interest in image processing and handling which is applied to image guided surgery during his neurosurgical  training at the Radcliffe Infirmary, Oxford. As a result he has developed a specialist interest in stereotactic functional neurosurgery. Having completed his neurosurgical training, in 2001 he transferred to the Royal  Hallamshire Hospital, Sheffield specifically to gain clinical experience of and develop research interests in Gamma Knife stereotactic radiosurgery.

 These research interests were recognised with an award from the International Stereotactic Radiosurgery Society.

He was appointed as a consultant in neurosurgery/stereotactic radiosurgery in 2002.

 

Mr Rowe retired from his NHS consultant post in 2019. He remains as part of our team and continues his practice here within the NHS as a locum consultant.

 

 

                                 

 

Mr John Yianni

Mr J Yianni MA FRCS(SN)
Consultant in Neurosurgery / Stereotactic Radiosurgery

John Yianni qualified in 1996 from University College London and subsequently undertook basic surgical training in Oxford, becoming a Member of the Royal College of Surgery of England in 1992.

 

 

Further to this he worked as a Clinical Research Fellow in Neurosurgery with interest in Stereotactic Functional Neurosurgery from 2001-2004, gaining experience in framed and frameless stereotaxy and functional neurosurgery. This was followed by an appointment as Specialist Neurosurgical trainee in Neurosurgery from 2004-2009. In 2008 he became a Fellow of the Royal College of Surgeons.

 

 

 

 

In 2009 he became a Fellow in Stereotactic Radiosurgery and Functional Neurosurgery until becoming a consultant in 2011. He was appointed Consultant Neurosurgeon with specialist interest in both Stereotactic Radiosurgery and Stereotactic Functional Neurosurgery, here at the Royal Hallamshire Hospital.

 Mr Dev Bhattacharyya

MB BS, FRCSEd, FRCS (Neurosurgery)

Consultant in Neurosurgery / Stereotactic Radiosurgery

 

 

 Mr Dev Bhattacharyya was appointed as a consultant in neurosurgery at the STH Royal Hallamshire Hospital here in June 2007 to 2014 specialising in epilepsy surgery, with significant involvement in trigeminal neuralgia surgery.  

Before becoming consultant, whilst a registrar attached to Consultants M Radatz, AA Kemeny and JG Rowe, he participitated in radiosurgery patient care for 2 yrs, this giving significant exposure to radiosurgery.

 

 

 Having gained a serious interest in and having gained much experience in dose planning on the Perfexion Model of Gamma Knife, he joined stereotactic radiosurgery team  in 2014.

 

                                

Mr Ramez Ibrahim

Mr Ramez Ibrahim
Consultant in Neurosurgery / Stereotactic Radiosurgery

 

 Mr Ibrahim was appointed as a consultant neurosurgeon at Sheffield Teaching Hospitals NHS Foundation Trust in 2017.

His medical education was undertaken in Egypt where he became a consultant neurosurgeon in Giza and at Cairo University before undertaking various senior clinical fellow roles in neurosurgery, orthopaedic spinal, stereotactic radiosurgery and skull base in Cardiff, Oxford and Sheffield.

   Mr Geza Mezei

 

Consultant in Neurosurgery / Stereotactic Radiosurgery

 

   Mr Julian Cahill

MB, BCh, BAO (Hons), MD, FRCS (SN).

Consultant in Neurosurgery / Stereotactic Radiosurgery

 

Mr Julian Cahill qualified from University College Cork, Ireland. He completed his Specialist Neurosurgery training in the West Midlands, UK in 2014. 

Following that he went onto sub-specialising further and completed the Royal College of Surgeons accredited Fellowship in Neuro Oncology at the Wessex Neurological Centre, University Hospital Southampton with Mr Paul Grundy and the Stereotactic Radiosurgery Fellowship, at the National Centre for Stereotactic Radiosurgery, Sheffield with Mr Matthias Radatz.

He has extensive experience of working overseas including Ireland, USA and Australia. His areas of specialist expertise are Neuro Oncology and Stereotactic Radiosurgery. He was appointed as a Consultant in Neurosurgery with a specialist interest in Stereotactic Radiosurgery in May 2020.

 

He has a strong research background and was awarded a doctoral research degree (MD) by the University College Cork for his translational research carried out at the Loma Linda University Medical Centre, LA, USA. His research track record includes multiple peer-reviewed publications, book chapters and presentations in national and international meetings. His current research interests include the treatment of intracranial metastatic disease.

He is a member of the Leksell Gamma Knife Society, The Royal College of Surgeons of Ireland, The British Neuro Oncology Society and The Society of British Neurological Surgeons.