(精选)【医学英文课件】 FIRST SBRT TREATMENT IN WINDSOR ONTARIO教学课件.ppt

Background In these 5 years we developed IMRT, VMAT, IGRT with daily CBCT guidance, MRI simulation and 4D-CT simulation in our local cancer program, (almost all the state-of-the-art technology that other centers have dreamed of). Our new cancer patient # seen by Rad Onc service increased from 1,235 to 1,509 per year. But….we have been referring Windsor patients to London, Hamilton and even Toronto for SBRT. We finally delivered the 1st SBRT to a lung cancer patient in October 2015. What is SBRT? Stereotactic Body Radiation Therapy (SBRT) is a treatment procedure similar to central nervous system (CNS) stereotactic radiosurgery, except that it deals with tumors outside of the CNS. A stereotactic radiation treatment for the body means that a specially designed coordinate-system is used for the exact localization of the tumors in the body in order to treat it with limited but highly precise treatment fields. SBRT involves the delivery of a single high dose radiation treatment or a few fractionated radiation treatments (usually up to 5 treatments). /sbrt Stereotactic from “Stereotaxis” - Greek for “Solid” and “Orderly” - Originally for surgical path to cranial lesions. Then frame-based radio-surgery – frame used to target radio-ablation SRS: Stereotactic Radiosurgery. SBRT: Stereotactic Body Radiotherapy 4D CT simulation How Did We Get Here? CMEs Lots of research Site visit to JCC in Hamilton New equipment purchases Development of new policies and procedures Staff training Ongoing review and changes to process Compression Arch Compression Plate Long Vacloc CT SIM - Scanning Patients have 2 CT scans (as do radical lung patients following the 4DCT protocol) A respiratory tracking belt is placed around patient to track breathing Physicist and physician will be present to assist, review the 4DCT, assess tumour size (max 5.0 cm) and motion If tumour motion is 1.0 cm, the 4DCT should be repeated with abdominal compression. If size and motion accepta