Use of Indirect Target Gating in Magnetic Resonance-guided Liver Stereotactic Body Radiotherapy: Case Report of an Oligometastatic Patient

Luca Boldrini, Francesco Cellini, Stefania Manfrida, Giuditta Chiloiro, Stefania Teodoli, Davide Cusumano, Bruno Fionda, Gian Carlo Mattiucci, Anna Maria De Gaetano, Luigi Azario, Vincenzo Valentini

Research output: Contribution to journalArticle

Abstract

The case of a 73-year-old woman affected by anal canal cancer with concomitant liver metastases is presented here. The patient was addressed to stereotactic body radiotherapy (SBRT) on two hepatic secondary lesions after the first radiochemotherapy treatment of the primary tumor. A Tri-60-Co magnetic resonance hybrid radiotherapy unit was used for SBRT treatment delivery. Both liver lesions were not clearly visible on the setup magnetic resonance imaging (MRI) due to their limited dimensions (maximum diameter 13 mm); however, the presence of two cysts adjacent to the metastases allowed the use of an indirect target gating approach. Treatment was delivered in deep inspiration breath-hold conditions using the visual feedback technique for breathing control optimization. Post radiotherapy imaging assessed the complete response.

Original languageEnglish
Pages (from-to)e2292
JournalCureus
Volume10
Issue number3
DOIs
Publication statusPublished - Mar 9 2018

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