The potential failure risk of the cone-beam computed tomography-based planning target volume margin definition for prostate image-guided radiotherapy based on a prospective single-institutional hybrid analysis.

Katsumi HiroseMariko SatoYoshiomi HatayamaHideo KawaguchiFumio KomaiMakoto SohmaHideki ObaraMasashi SuzukiMitsuki TanakaIchitaro FujiokaKoji IchiseYoshihiro TakaiMasahiko Aoki

Published in: Radiation oncology (London, England) (2018)

PTV margins calculated from CBCT-ST might be underestimated compared to the true PTV margins. To determine a reliable CBCT-ST-based PTV margin, at least the systemic error Σ and the random error σ for on-line matching errors need to be investigated by supportive preliminary FM evaluation at least once.

Keyphrases

cone beam computed tomography
prostate cancer
early stage
radiation therapy
locally advanced
patient safety
benign prostatic hyperplasia
emergency department
adverse drug
squamous cell carcinoma
magnetic resonance imaging
magnetic resonance
atomic force microscopy
image quality
high resolution