Target volume motion during anal cancer image guided radiotherapy using cone-beam computed tomography

Brooks, C.; Bernier, L; Hansen, Vibeke; Tait, Diana

doi:10.1259/bjr.20170654

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…There is very limited published data on IGRT in anal cancer. Two studies have examined setup errors for bony anatomy during tomotherapy and IMRT; they found systematic and random translational errors of 1-3mm and 3-4mm, respectively [100,101]. Brooks et al also studied primary tumour motion during IMRT, and found significant inter-fraction movement relatively to bony anatomy (>10 mm) [101].…”

Section: Anal Cancermentioning

confidence: 99%

“…Two studies have examined setup errors for bony anatomy during tomotherapy and IMRT; they found systematic and random translational errors of 1-3mm and 3-4mm, respectively [100,101]. Brooks et al also studied primary tumour motion during IMRT, and found significant inter-fraction movement relatively to bony anatomy (>10 mm) [101]. The main cause of primary tumour movement appears to be a combination of bowel gas & filling variation (high tumours) and buttock displacement (low tumours).…”

Section: Anal Cancermentioning

confidence: 99%

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Image-Guided Radiotherapy for Pelvic Cancers: A Review of Current Evidence and Clinical Utilisation

2020

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The meticulous selection and utilisation of image-guided radiotherapy treatment (IGRT) are essential for optimal radiotherapy treatment delivery when using highly conformal treatment techniques in pelvic radiotherapy. Pelvic IGRT has several general IGRT issues to consider (such as choice of match strategy, prioritisation between multiple treatment targets, and margin estimates) as well as issues specific to pelvic radiotherapy, in particular large interfraction organ variation. A range of interventions, including adaptive treatment strategies, have been developed to address these challenges. This review covers general considerations for clinical implementation of pelvic IGRT in routine practice and provides an overview of current knowledge regarding pelvic interfraction organ motion. Published IGRT evidence for each of the major tumour sites (gynaecological, prostate, bladder, rectal and anal cancer) is summarised, as are state-of-the-art adaptive approaches. General recommendations for implementation of an institutional pelvic IGRT strategy include• Ensuring consistency between treatment intent and IGRT approach utilised.• Ensuring minimum national and international IGRT guidance is followed whilst considering the benefit of daily volumetric IGRT. • Ensuring the appropriate Allied Health Professionals (namely Therapy Radiographers/RTTs) lead on undertaking IGRT. • Ensuring the IGRT workflow procedure is clear and includes an escalation process for difficult set-ups. • Ensuring a robust IGRT service is in place before implementing advanced adaptive approaches.

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Section: Anal Cancermentioning

confidence: 99%