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Faculty Profile

Wolfgang A. Tome, Ph.D.

Dr. Wolfgang A. Tome

Professor, Department of Radiation Oncology

Director of Medical Physics, Institute for Onco-Physics at the Albert Einstein College of Medicine

 

Professional Interests

A) Bio effects of focused ultrasound and photodynamic therapy.

B) Use functional MR to define and characterize high-risk volumes for risk adaptive radiotherapy. Risk adaptive radiotherapy is a biological optimization strategy that is based on the possible risk characteristics for local recurrence in tumor sub-volumes rather than individual tumor voxels and treatment plans are optimized using biological objective functions that are region specific, rather than voxel specific. Risk Adaptive optimization can be employed in the generation of treatment plans based on biological objective functions.

C) Use functional MR imaging to assess treatment response of tumors to therapy.

D) Mitigation of normal tissue radiation injury using pharmacological interventions and conformal avoidance techniques to rescue and spare stem cell compartments. One example of this research thrust is Hippocampal Avoidance Whole Brain Radiotherapy (HAWBRT): While whole brain radiotherapy (WBRT) combined with Stereotactic radiosurgery offers effective palliation in many inoperable cases, it has been speculated that adverse effects on neurocognitive function might outweigh its benefits. HAWBRT aims to preserve neurocognitive function and quality of life, and the Risk to Benefit ratio will have to be optimized with respect to these endpoints. Results from our work involving patients receiving focal fractionated stereotactic radiotherapy for benign and low grade brain neoplasms, we have established a hippocampal dosimetric threshold of 7.3 Gy in 2 Gy fraction equivalents to 40% of the hippocampus that is associated with subsequent risk of impairment in  delayed recall. Patients receiving a dose of higher than 7.3 Gy in 2 Gy fraction equivalents to 40% of the hippocampus are 19 times more likely to exhibit impairment in list learning than patients that receive less than 7.3 Gy in 2 Gy fraction equivalents to 40% of the hippocampus. As demonstrated by us this dosimetric threshold can be achieved with currently available IMRT techniques and it may therefore, be desirable to spare a patient’s hippocampus during WBRT to achieve a durable palliative effect with decreased neurocognitive side effects in the memory domain. Using animal models we are interested in further investigating the link between hippocampal irradiation and neurocognitive impairment.

E) Use of nonlinear systems theory to predict and eventually control (i.e. stabilize) the breathing pattern and hence the tumor motion based on fast intratreatment fraction MR imaging using real time MR radiotherapy systems. Develop real-time adaptive RT techniques that can correct for changes on the fly. 

F) Further development of advanced dosimetry systems for spot scanning proton dosimetry and further development of proton CT stopping power images for daily Bragg Peak prediction prior to the delivery of IMPT.

 

Selected Publications

 

More Information About Dr. Wolfgang Tome

Institute for Onco-Physics

CENTRE FOR MEDICAL RADIATION PHYSICS (CMRP)

Material in this section is provided by individual faculty members who are solely responsible for its accuracy and content.

Contact

Albert Einstein College of Medicine
Jack and Pearl Resnick Campus
1300 Morris Park Avenue
Block, Room 106
Bronx, NY 10461

Tel: 718.430.3188
Fax: 718.920.5425
wolfgang.tome@einstein.yu.edu

 
Pubmed Search
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