Fig. 3From: The impact of positron emission tomography on primary tumour delineation and dosimetric outcome in intensity modulated radiotherapy of early T-stage nasopharyngeal carcinomaAn example of IMRT plan showing the dose distribution at one of the CT slices. The plan was computed based on the PTVCM (Red). The black arrows indicate the regions of PTVCMP (Cyan) receiving less than 95 % isodose level (indicated by the red arrow)Back to article page