Index of authors for abstracts accepted at BOPSS 2018, Dublin. Click here for full abstract listings.
The numbers refer to abstracts of submitted free papers. First authors are indicated in bold.
Abstracts starting with number 1 are presented on Thursday, click here to view detailed schedule
Abstracts starting with number 2 are presented on Friday, click here to view detailed schedule
Abstracts starting with number 3 & 4 refer to ePoster presentations.
Please note that this list is auto-generated from the abstract submissions based on surnames, so differences in the initials entered can lead to duplicate entries and where authors share surnames then the abstract details should be checked by clicking on the abstract number to verify the exact author.
This is a list of accepted authors and presentations. It assumes that all accepted will attend and present
| Title | Intensity modulated radiotherapy (IMRT): A vision preserving treatment in optic nerve sheath & peri-optic nerve meningiomas |
| Submitted by | Stephanie Chiu |
| Abstract ID | 18-156 |
| Review Result | rapid fire presentation |
| Abstract Number | 203 |
| Purpose | Optic nerve sheath & peri-optic nerve meningiomas cannot be treated in the conventional way with surgery or stereotactic radiosurgery because of the high risk of causing visual loss. Stereotactic radiosurgery employs a high dose of radiation per fraction which would result in potential acceleration of visual loss due to the proximity of the meningioma to the optic apparatus. We present our experience using fractionated IMRT in these tumours as a successful vision preserving technique. |
| Methods | Retrospective case series of optic nerve sheath and peri-optic nerve meningiomas treated with fractionated IMRT at a single oncology centre in the UK (Sheffield). |
| Results | Five cases of meningiomas causing progressive visual loss were treated with IMRT over a period of five weeks and three days. One patient had an optic nerve sheath meningioma and four patients had meningiomas surrounding and compressing the optic nerve. A dose of 50.4Gy in 28 fractions using 6Mv photons was used in all cases. IMRT was successful in controlling the meningioma & preventing progression of vision loss in all cases. The mean change in vision from pre-IMRT to last ophthalmology follow-up was 0.00 (LogMAR). The median follow-up time was 222 days (range 172-310). All patients remain under regular review. The treatment was well tolerated and acceptable. |
| Conclusion | Intensity modulated radiotherapy is a promising treatment modality for optic nerve sheath & peri-optic nerve meningiomas to provide local control and prevention of progressive visual loss. Timing IMRT at a stage before irreversible vision loss occurs is crucial. |
