T2w MRI using turbo spin echo (TSE) technique of two patients (A, B: #05; C, D: #09) acquired with RT specific (A, C) and diagnostic scan setup (B, D). Note the difference in patient positioning between both scans. ROIs are shown for tumor (red) and adjacent tissue (green). The difference in tumor SNR and CNR in (A) relative to (B) was −21.8% and −21.1%, respectively (good correspondence). Similarly, 30.7% and −31.5% were found for (C) relative to (D) (average correspondence).