The impact of smart metal artefact reduction algorithm for use in radiotherapy treatment planning

Connor Guilfoile, Peter Rampant, Michael House

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The presence of metal artefacts in computed tomography (CT) create issues in radiation oncology. The loss of anatomical information and incorrect Hounsfield unit (HU) values produce inaccuracies in dose calculations, providing suboptimal patient treatment. Metal artefact reduction (MAR) algorithms were developed to combat these problems. This study provides a qualitative and quantitative analysis of the “Smart MAR” software (General Electric Healthcare, Chicago, IL, USA), determining its usefulness in a clinical setting. A detailed analysis was conducted using both patient and phantom data, noting any improvements in HU values and dosimetry with the GE-MAR enabled. This study indicates qualitative improvements in severity of the streak artefacts produced by metals, allowing for easier patient contouring. Furthermore, the GE-MAR managed to recover previously lost anatomical information. Additionally, phantom data showed an improvement in HU value with GE-MAR correction, producing more accurate point dose calculations in the treatment planning system. Overall, the GE-MAR is a useful tool and is suitable for clinical environments.

    Original languageEnglish
    Pages (from-to)385-394
    JournalAustralasian Physical and Engineering Sciences in Medicine
    Volume40
    Issue number2
    DOIs
    Publication statusPublished - Jun 2017

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