Precision radiation therapy is now a treatment option histiocytoma tumor for pets at iowa state university animal hospital • news service • iowa state university

Radiation therapists, along with an anesthesiologist, carefully positioned mac in the same alignment they had for histiocytoma tumor his first treatment, so the high-dose radiation could be delivered to the exact same spot. But a CT scan showed mac’s tumor had shrunk, likely a result of the first treatment. That was good news, but it required the technicians to go back into the histiocytoma tumor radiation therapy room and reposition mac to account for the histiocytoma tumor smaller size of the tumor.

Dr. Chad johannes, an assistant professor of veterinary clinical sciences who was instrumental histiocytoma tumor in getting the new radiation treatment facility running, said it’s a good problem to have. The techniques used at the hospital deliver the radiation with histiocytoma tumor such intensity and precision that the results show up faster histiocytoma tumor than conventional radiation therapy, johannes said.

Johannes, who specializes in veterinary oncology, said SRT is a treatment option for animals who have histiocytoma tumor tumors and cancers for which surgery and chemotherapy are not histiocytoma tumor ideal. SRT improves on older radiation technology as well. Older machines rely on delivering lower doses of radiation over histiocytoma tumor the course of repeated treatments as a way of reducing histiocytoma tumor side effects. SRT’s accuracy allows the machine to deliver more intense radiation histiocytoma tumor without significantly affecting the healthy tissue that surrounds tumors. This reduces how often a patient must undergo treatment by histiocytoma tumor up to 90 percent, johannes said.

That makes SRT a more accessible treatment option for pet histiocytoma tumor owners who have to travel great distances. Johannes noted there are few veterinary radiation treatment options in histiocytoma tumor the midwest. Pet owners may not be able to travel a great histiocytoma tumor distance for their pet to receive treatments that could take histiocytoma tumor weeks to complete. But SRT makes it possible for animals to complete the histiocytoma tumor entire treatment course over several days. And fewer treatments cause less disruption for the pet, as well, and reduce the side effects the animal may experience as histiocytoma tumor a result of the radiation, johannes said.

Two dogs underwent SRT on a monday morning in early histiocytoma tumor april. Mac was the first, and a 10-year-old lab named jake with a prostate carcinoma, received treatment later in the morning. Both treatments followed the same procedure. First, a three-member team made sure the patient was sedated and anesthetized, a process that usually takes longer than the treatment itself. Anesthesia is required because the patients must remain perfectly still histiocytoma tumor while the radiation is delivered, johannes said.

The staff then placed the patient on the SRT table, and a radiation therapist made sure the animal was in histiocytoma tumor precisely the right alignment for the machine to deliver the histiocytoma tumor radiation to the correct area. Once the animal is positioned, the staff go into an adjacent room where a CT histiocytoma tumor scan is taken of the tumor. The scan assures the technicians that the radiation will pinpoint histiocytoma tumor the best possible location. Sometimes, as in mac’s case, the tumor can shrink or change shape, requiring the animal to be repositioned.

Once the radiation therapist and veterinarian are sure the animal histiocytoma tumor is correctly positioned, the hulking radiation machine rotates into place, and a pair of heavy doors shut to protect anyone histiocytoma tumor outside the room from radiation. The technicians in the adjoining room use a system of histiocytoma tumor cameras and monitors to watch the patient and the equipment histiocytoma tumor in the treatment room. The machine then delivers the radiation to the affected tissues histiocytoma tumor with precision down to the millimeter. The radiation takes a matter of minutes to deliver, then the doors slide open again and the technicians take histiocytoma tumor the animal off the table and recover it from anesthesia.

SRT can treat a wide range of tumors, including those of the head and neck, brain, thyroid, spine/bone, lungs and prostate. Johannes said pet owners should talk to their primary care histiocytoma tumor veterinarian if they’re interested in radiation therapy for their animal. Local veterinarians can consult with ISU personnel to see if histiocytoma tumor the treatment might be a valid option.