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Radiation Therapy

Radiation Therapy

Dr. Royce Roberts is our director of Radiation Therapy. Dr. Roberts is one of the most experienced practicing radiation oncologists in the country having held positions in radiation therapy at Texas A&M University, where his Masters Degree involved radiation therapy characteristics of 10 MEV neutrons, the University of Tennessee and the University of Georgia.

Dr. Roberts’s consultation with the referring veterinarian and their client includes explanation of the radiation procedures, the length of time involved and an honest prognosis and evaluation of expectations. The ability to explain these aspects of radiation therapy to his clients is Dr. Roberts distiguishing characteristic.

Radiation therapy can be completely curative, however some pets present with advanced disease and a definitive treatment (for cure) is not possible.  Palliative treatment is often possible, allowing easing or elimination of pain and other symptoms. Our Radiation Therapy Section works closely with other Sections of SLVS: Surgery, Oncology, Internal Medicine and Diagnostic Imaging.  When radiation therapy is determined to be the best method of treatment, Dr. Roberts can offer the most advanced radiation treatment methods currently being used in veterinary medicine anywhere in the United States: Intensity Modulated Radiation Therapy (IMRT). This includes a linear accelerator with a multi-leaf collimator that is driven by a software package allowing more irradiation of the tumor and less of the normal surrounding tissues.

A radiation physicist, Michael O’Neill, from St. Joseph’s and Park Plaza Hospitals, receives our CT images, programs the treatment criteria and transmits the plan to our facility. The specific treatment plan for a specific patient is then uploaded into the system to drive the linear acceleratory and the multi-leaf collimator during each treatment. The following images are taken from the treatment plan for a cat with a non-surgical brain tumor.

Dose Volume Histogram of tumor and eyes.Digitally Reconstructed Radiograph of tumor in treatment field. Transverse, Sagital and Coronal reconstruction of dose distribution.Multiple xxial Views of dose distribution through treatment volume. Application of this treatment plan

Feline Hyperthyroidism

Radiotherapy Staff

Dr. Royce Roberts is the radiotherapist for Sugar Land Veterinary Imaging. Dr. Roberts is a diplomat of the American College of Veterinary Radiology and has been treating cancer in pets since 1970. He has been a member of the teaching faculty at Texas A&M University, Auburn University, University of Tennessee and The University of Georgia.

Dr. Roberts has treated over 2000 cats with hyperthyroidism. Dr. Charles Quick is the Chief Radiologist at Sugar Land Veterinary Specialists. Also a diplomat in the American College of Veterinary Radiology, he has taught at Texas A&M University, Auburn University and Cornell University.

Dr. Quick has been in private veterinary imaging referral practice in Houston since 1979. The technical staff lead by Silvano Maya, has been trained in the safe use and handling of radioiodine and the care of the I-131 treated and isolated patients.