Cone-beam computed tomography dose monitoring during intensity-modulated radiotherapy in head and neck cancer: parotid glands
Clin. transl. oncol. (Print)
; 15(5): 412-415, mayo 2013. tab, ilus
Article
in En
| IBECS
| ID: ibc-127382
Responsible library:
ES1.1
Localization: BNCS
ABSTRACT
PURPOSE: To evaluate the dosimetric changes of parotid glands (PG) during a course of intensity-modulated radiotherapy (IMRT) in head and neck (H&N) cancer patients. METHODS: Ten patients with H&N cancer treated by IMRT were analyzed. The original treatment plan (CT(plan)) was transferred to cone-beam computed tomography (CBCT) acquired at the 15th and 20th treatment day (CBCT(plan) I and II, respectively). The PG mean dose (D(mean)), the dose to 50 % of the volume, and the percent of volume receiving 30 and 50 Gy were measured by the dose volume histogram. RESULTS: 30 IMRT plans were evaluated (3 plans/patient). All dosimetric end points increased significantly for both PG only when CT(plan) was compared to CBCT(plan) I. The D(mean) increased significantly only for ipsilateral PG (p = 0.02) at week 3. CONCLUSION: During a course of IMRT, CBCT is a feasible method to heck the PG dosimetric variations. Perhaps, the 3rd week of radiotherapy could be considered as the time-check-point (AU)
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Collection:
06-national
/
ES
Database:
IBECS
Main subject:
Parotid Gland
/
Head and Neck Neoplasms
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Clin. transl. oncol. (Print)
Year:
2013
Document type:
Article