definitions
1, 2]. The following are a transcript of the definitions: Gross tumour volume (GTV) – is the gross palpable or visible/demonstrable extent and location of the malignant growth. Clinical target…
– what is quality?
1]. Approaches to quality have seen a shifting emphasis and have evolved through the following stages: 1. inspection and remedial action 2. identifying improvements and taking steps to prevent mistakes…
control checks and scheduling for megavoltage machines
6] and IPEM81 [5]. Both documents provide guidance for checks to be conducted on a monthly to 12-monthly frequency. The IEC document does not specify weekly checks. An estimate of…
Conclusion
1]. They are both often seen as an unnecessary intrusion into the routine treatment of patients. It can become very frustrating for treatment personnel when the performance of a treatment…
radiotherapy technology
The radiotherapy technology The previous section demonstrates the need for quality control across the radiotherapy process. The purpose and extent of the quality control for each technological device utilized throughout…
radiotherapy process
The radiotherapy process Quality control has a role throughout the entire radiotherapy process due to the significant technology that each aspect relies upon. The purpose of quality control in each…
long-term and immediate monitoring
Short-term, long-term and immediate monitoring Constantly monitoring a parameter demonstrates performance up until the point at which it is considered that unacceptable performance has been detected. Hence, the data collected…
and catastrophes
Maintenance and catastrophes It is important to bear in mind that not all aspects of equipment performance can be maintained. Catastrophes are inevitable and these are usually exhibited by component…
in the treatment of thyroid disease
4–6] from the Royal College of Physicians (RCP) in the UK, as well as from Europe and the USA for using radioiodine in the management of hyperthyroidism and of thyroid…
ionization chamber
Figure 3.5. The cap is generally made of a low atomic number low-density material such as graphite, although various plastic materials have been used where the plastic has been manufactured…
