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IHE-RO

Flattening Filter Free- mode IHE-RO Use Case Champions – call June 13, 2011 Created by Mika Miettinen based on the request by MITA. IHE-RO. I ntegrating the H ealth Care E nterprise- R adiation O ncology. Flattening Filter Free - mode. Problem

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IHE-RO

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  1. Flattening Filter Free- mode IHE-RO Use Case Champions – call June 13, 2011 Created by Mika Miettinen based on the request by MITA IHE-RO Integrating the Health Care Enterprise- Radiation Oncology

  2. Flattening Filter Free - mode • Problem • Flattening Filter Free (FFF) has different beam characteristics compared to standard flat beams, and requires a new definition to describe the filter configuration of the treatment head in the treatment plan • Vendors need to implement the data transfer consistently to avoid potential interoperability and safety problems • Potential safety risk can arise e.g. in following cases • Treatment planning is configured using FFF beam data, but it is not able to describe the FFF information to the information system, and thus FFF beam turns to a flat beam during data transfer • Information system does not understand the intended FFF beam definition from treatment planning, and thus FFF beam turns to a flat beam during data transfer • Treatment machine does not understand the intended FFF beam definition from information system or treatment planning, and thus FFF beam turns to a flat beam during data transfer

  3. Flattening Filter Free - mode • Solution • DICOM WG-7 has implemented a definition in DICOM RT standard that can be used to characterize the FFF beam in DICOM RT data transfer • Same data construct shall be used for other new beam modalities that require a special beam filter in treatment head. • Natural extension to the Advanced RT Objects Integration Profile

  4. Flattening Filter Free - mode • Benefits • Implementation of the standard, and testing in the connecthaton will ensure safe interoperability of different radiotherapy systems that are managing treatment plan information containing FFF beams

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