Radiation injury to the spinal cord in head and neck cancers: does field arrangement have a role.
J Cancer Res Ther
;
2006 Apr-Jun; 2(2): 65-7
Article
in English
| IMSEAR
| ID: sea-111493
ABSTRACT
STUDY DESIGN:
A study of eight cases of head and neck cancers, to see if the cord was getting a higher dose in the antero-posterior (A-P) fields, compared to the bilateral (B/L) fields.OBJECTIVE:
Radiation damage to the spinal cord is a critical issue for the radiation oncologists. This study was conducted to evaluate, if the dose to the spinal cord is higher by the antero-posterior (A-P) fields, compared to the bilateral (B/L) fields. MATERIALS ANDMETHODS:
Eight cases of head and neck cancer were taken in our study. Two beam arrangements were placed in the treatment planning system, the B/L and the A-P fields. The DVH's for the cord dose were recorded and compared in both plans, with a standard fraction size of 200 cGy/fraction.RESULTS:
The mean dose to the spinal cord was 168.06 cGy in A-P arrangement, while it was 133.75 cGy in the B/L arrangement.CONCLUSION:
A-P field arrangement in head and neck malignancies delivers a higher dose to the spinal cord. Therefore, we need to spare the cord at an earlier dose limit.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Radiation Injuries
/
Radiotherapy
/
Spinal Cord
/
Spinal Cord Diseases
/
Female
/
Humans
/
Male
/
Dose-Response Relationship, Radiation
/
Head and Neck Neoplasms
Language:
English
Journal:
J Cancer Res Ther
Journal subject:
Neoplasms
/
Therapeutics
Year:
2006
Type:
Article
Similar
MEDLINE
...
LILACS
LIS