| Added by | mollevi |
|---|---|
| Last modified by | pmartino |
| Group name | EquipePM |
| Item Type | Journal Article |
| Title | Imaged-guided liver stereotactic body radiotherapy using VMAT and real-time adaptive tumor gating. Concerns about technique and preliminary clinical results |
| Creator | Llacer-Moscardo et al. |
| Author | C. Llacer-Moscardo |
| Author | O. Riou |
| Author | D. Azria |
| Author | L. Bedos |
| Author | N. Ailleres |
| Author | F. Quenet |
| Author | P. Rouanet |
| Author | M. Ychou |
| Author | P. Fenoglietto |
| Abstract | BACKGROUND: Motion management is a major challenge in abdominal SBRT. We present our study of SBRT for liver tumors using intrafraction motion review (IMR) allowing simultaneous KV information and MV delivery to synchronize the beam during gated RapidArc treatment. MATERIALS AND METHODS: Between May 2012 and March 2015, 41 patients were treated by liver SBRT using gated RapidArc technique in a Varian Novalis Truebeam STx linear accelerator. PTV was created by expanding 5 mm from the ITV. Dose prescription ranged from 40 to 50 Gy in 5-10 fractions. The prescribed dose and fractionation were chosen depending on hepatic function and dosimetric results. Thirty-four patients with a minimal follow-up of six months were analyzed for local control and toxicity. Accuracy for tumor repositioning was evaluated for the first ten patients. RESULTS: With a median follow-up of 13 months, the treatment was well tolerated and no patient presented RILD, perforation or gastrointestinal bleeding. Acute toxicity was found in 3 patients with G1 abdominal pain, 2 with G1 nausea, 10 with G1 asthenia and 1 with G2 asthenia. 6 patients presented asymptomatic transitory perturbation of liver enzymes. In-field local control was 90.3% with 7 complete responses, 14 partial responses and 7 stabilisations. 3 patients evolved "in field". 12 patients had an intrahepatic progression "out of field". Mean intrafraction deviation of fiducials in the craneo-caudal direction was 0.91 mm (0-6 mm). CONCLUSION: The clinical tolerance and oncological outcomes were favorable when using image-guided liver SBRT with real-time adaptive tumor gating. |
| Publication | Rep Pract Oncol Radiother |
| Volume | 22 |
| Pages | 141-149 |
| Date | Mar-Apr 2017 |
| Journal Abbr | Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology |
| DOI | 10.1016/j.rpor.2016.06.004 |
| ISSN | 1507-1367 (Print) 1507-1367 (Linking) |
| Tags | Adaptative tumor gating, clinic, clinique hors équipe, Liver SBRT, VMAT |
| Date Added | 2018/07/20 - 09:15:34 |
| Date Modified | 2021/03/05 - 10:46:42 |
| Notes and Attachments | (Note) (Note) (Note) (Note) (Note) (Note) 28490985 (Attachment) |
Institut de Recherche en Cancérologie de
