and epidemiology
Introduction and epidemiology Thyroid cancer is a spectrum of tumours characterized by different biology and clinical behaviour. The presence of a micropapillary carcinoma of thyroid may have little impact on…
simulation
Figure 9.7 are relative to the reference point and can be applied at the first treatment in order to align precisely the isocentre to the target. The shift coordinate method…
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…
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…
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…
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…
