Biomedical Engineering Reference
In-Depth Information
4.
document the tests, corrective actions (if any), and re-tests (if
any); and
5.
constantly monitor all aspects of steps (1) through (4) to ensure
that the quality assurance procedures are actually being
followed.
It is essential that a QA program be in place for all elements of the
process of planning and delivering radiation therapy. And, it is
desirable that the overview of the QA program (step 5) be undertaken
by individuals who are not responsible for conducting steps 1 through
4 of the above list.
Some of the more important elements of the radiation therapy process
that must be the subject of QA are:
the integrity and proper functioning of all imaging devices and
image data;
the integrity and proper functioning of all software and associated
data - e.g., treatment planning programs;
the integrity and accuracy of the patient data;
the integrity and proper functioning of all equipment
−
e.g., the
therapy machine(s);
the integrity and proper functioning of all equipment-related
software
−
e.g., the control and safety systems, and buried firm-
ware; and
the proper execution of the established procedures for planning
and delivering radiation therapy.
When asked how one assures, to the extent that is possible, the safety
and accuracy of radiotherapy, I have one simple answer. “
Quality is
assured through meticulous attention to myriads of small details
.”
