![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page1099.jpg)
Future: MRI informed real-time planning
• 3D gradient echo T1-weighted mDixon sequence scan time: 40 s; (Philips
Ingenia 1.5T)
• MRI at t = 0, 2, 4, 6, 8, and 10 minutes
• Bladder CTV, bowel loops and rectum were delineated on MRI_0 and
MRI_10
• Dose plans calculated on MRI_0
• Target coverage assessed on MRI_10
• Reduction in PTV course average (median 304 cc compared to plan
selection)
• Improved bowel loop sparing (V25)
• V95 <98% in 2 patients (intra-fraction shifts)
Vestergaard A, Hafeez S, Muren LP, Nill S, Hoyer M, Hansen VN, Gronborg C, Pedersen EM, Petersen JB, Huddart R et al: The potential of
MRI-guided online adaptive re-optimisation in radiotherapy of urinary bladder cancer. Radiother Oncol 2016, 118(1):154-159.