Journal of Medical Physics
 Home | Search | Ahead of print | Current Issue | Archives | Instructions | Subscription | Login  The official journal of AMPI, IOMP and AFOMP      
 Users online: 218  Home  EMail this page Print this page Decrease font size Default font size Increase font size 
Year : 2017  |  Volume : 42  |  Issue : 3  |  Page : 163-170

A feasibility study on the use of tomotherapy megavoltage computed tomography images for palliative patient treatment planning

1 Radiation Oncology Centres, Gosford, NSW, Australia
2 Radiation Oncology Centres, Wahroonga, NSW, Australia
3 Radiation Oncology Centres, Gosford; Radiation Oncology Centres, Wahroonga, NSW, Australia

Correspondence Address:
Yunfei Hu
ROC Gosford, 41 William St., Gosford 2250, NSW
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmp.JMP_32_17

Rights and Permissions

Dedicated rapid access palliative radiation therapy improves patients' access to care, allowing more timely treatment which would positively impact on quality of life. The TomoTherapy (Accuray, Sunnyvale, CA) system provides megavoltage (MV) fan-beam computed tomography (FBCT) as the image guidance technique, and a module called “statRT” that allows the use of these MV FBCT images for direct planning. The possibility of using this imaging modality for palliative radiotherapy treatment planning is assessed against accepted planning CT standards by performing tests following AAPM TG 66 and an end-to-end measurement. Results have shown that MV FBCT images acquired by TomoTherapy are of sufficient quality for the purpose of target delineation and dose calculation for palliative treatments. Large image noise and extended scan acquisition time are the two main drawbacks, so this imaging modality should only be used for palliative treatments at areas with well-known, easily distinguishable, and relatively immobile targets such as spine and whole brain.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded156    
    Comments [Add]    
    Cited by others 2    

Recommend this journal