Most modern LINAC are installed with a variety of photon energies varying from 6 MV
to 18 MV. The conventional wisdom in external radiotherapy has been that higher energies
(>10 MV) are preferred for deep seated pelvic and/or abdominal lesions, especially
for larger target volume or larger patients.
1.
The usefulness for higher energy is more evident with 3DCRT, as compared to IMRT
and VMAT.
2.
The recent paper by Eskens et al.
3.
shades more light into the usefulness of using different energies or a combination
of energies for anal cancers with lymph node involvement. This is a well written paper;
however, certain useful information was not addressed in the manuscript.
- 1-Comparison between 6 MV and 10 MV
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References
- Choice of optimum megavoltage for accelerators for photon beam treatment.Int J Radiat Oncol Biol Phys. 1986; 12: 1551-1557
- Aspects on the optimal photon beam energy for radiation therapy.Acta Oncol. 1999; 38: 179-187
- A retrospective evaluation of mixed energy volumetric modulated arc therapy for anal cancers with lymph node involvement.Med Dosim. 2020; 45 (Winter): 339-345
- A dosimetric analysis of 6 MV versus 15 MV photon energy plans for intensity modulated radiation therapy (IMRT) of carcinoma of cervix.Reports of practical oncology and radiotherapy: journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology. 2010; 15: 125-131
- Dosimetric effect of photon beam energy on volumetric modulated arc therapy treatment plan quality due to body habitus in advanced prostate cancer.Practical radiation oncol. 2015; 5: e625-e633
- The dosimetric significance of using 10 MV photons for volumetric modulated arc therapy for post-prostatectomy irradiation of the prostate bed.Radiol and oncol. 2016; 50: 232-237
- The dosimetric effects of photon energy on the quality of prostate volumetric modulated arc therapy.Practical radiation oncol. 2014; 4: e39-e44
- Integral dose in three-dimensional conformal radiotherapy, intensity-modulated radiotherapy and helical tomotherapy.Clin Oncol (R Coll Radiol). 2009; 21: 706-712
Article info
Publication history
Published online: April 29, 2022
Accepted:
March 30,
2022
Received in revised form:
March 15,
2022
Received:
January 24,
2022
Identification
Copyright
© 2022 American Association of Medical Dosimetrists. Published by Elsevier Inc. All rights reserved.
