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Year : 2013  |  Volume : 9  |  Issue : 3  |  Page : 348-350

Fractionated beam radiotherapy is a special case of continuous beam radiotherapy when irradiation time is small

1 Department of Radiotherapy, Institute of Post Graduate Education and Research (IPGMER), Kolkata, West Bengal, India
2 Department of Radiotherapy, Bankura Sammilani Medical College, Bankura, West Bengal, India
3 Department of Radiotherapy, R. G. Kar Medical College and Hospital, Kolkata, West Bengal, India
4 Department of Anatomy, Calcutta National Medical College, Kolkata, West Bengal, India
5 Department of Anatomy, Medical College, Kolkata, West Bengal, India

Correspondence Address:
Jayanta Biswas
ARITRI Apartment, 155, R. N. Guha Road, Kolkata, West Bengal
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-1482.119300

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Fractionated beam radiotherapy, in other terms, external beam radiotherapy (EBRT) and continuous beam radiotherapy or Brachytherapy are two modes of radiotherapy techniques. Although in many ways, they appear to be different, radiobiologically, with the help of mathematics, it can be proved that the biological effective dose (BED) of EBRT is similar to BED of Brachytherapy, when irradiation time is small. Here an attempt is made to correlate these two predominant modes of radiotherapy techniques.

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