Christiana Care Health Systems Helen F. Graham Cancer Center has become the first facility in the United States to upgrade its ONCOR linear accelerator from Siemens Healthcare with the new 160 MLC multileaf collimator.

The 160 MLC on the ONCOR combines a fast leaf movement of up to 4 cm per second with the highest possible resolution and the lowest leakage and penumbra, according to Siemens. These features make it possible to treat patients with enhanced precision, sparing the surrounding healthy tissue regardless of the tumor shape, and can provide a more efficient therapy session by shortening the time of fractions due to fast leaf movements.

Charleston Radiation Therapy in West Virginia and Holden Comprehensive Cancer Center at the University of Iowa have also recently completed the upgrade.

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