Assessment of Intrafraction Motion of the Urinary Bladder Using Magnetic Resonance Imaging (cineMRI)
C Wilson, E Moseshvili, M Tacey, I Quin, N Lawrentschuk, D Bolton, DL Joon, M Chao, T Dunshea, T Kron, F Foroudi
Clinical Oncology | ELSEVIER SCIENCE LONDON | Published : 2020
AIM: To assess the intrafraction motion of the urinary bladder and delineate the appropriate margin size for radiotherapy planning, for both the full and empty bladder. MATERIALS AND METHODS: This was a single-site, single-arm study of 20 patients planned to undergo radical cystectomy for histologically confirmed muscle-invasive bladder cancer. Patients underwent magnetic resonance imaging (cineMRI) of the entire pelvis using a 3-Tesla system, prior to cystectomy. Patients first underwent a cineMRI with a full bladder, then voided and underwent a second MRI with an empty bladder. All MRI sequences were acquired over 18 min. We assessed the differences in bladder filling and subsequent bladde..View full abstract
This work was funded in part by a Royal Australian and New Zealand College of Radiologists (RANZCR) Research Grant. The results were presented at the RANZCR Annual Scientific meeting in October 2018.