Nowadays, intensity modulated radiation therapy (IMRT) has
been used for high conformality, high normal tissue protection,
therefore high therapeutic ratio in routine clinical treatment.
The success of IMRT depends on the implementation
of correct radiation dose. As a result, image-guided radiation
therapy (IGRT) methods were developed which regulates the
treatment position with two or three-dimensional imaging
tecniques in the treatment room during treatment. However,
IGRT can correct only organ motion and set-up errors, this
method may not be sufficient in cases with large changes in
anatomy. Also, IGRT do not include treatment planning and
as a result potential modification of dose delivered to the patient.
Thus, ART; as a forward step for IGRT, was needed. The
purpose of ART is; to equalize planned dose distribution with
planning optimal dose distribution by measuring changes in
the treatment process.
Keywords: Adaptive radiotherapy; cancer
