“…The result of the unpaired t-test for the time gives t-value=1.1408 and is lower than 1.8946. The critical value, for a degree of freedom (7) and a p-value of 0.05, is 1.8946, there is statistical significance between HDR and LDR. Four observers performed first on HDR and later on LDR so there is no influence of the ordering of the sessions.…”