Fig. 2.

A 59-year-old male with advanced-stage lung cancer and multiple cervical lymph node metastases. Set-up and automatic region of interest (ROI) transfer were the same as that in Fig. 1. A signal-to-noise (SNR) of 21.9 at b800 [s/mm²] was achieved in this small lesion that showed diffusion restriction as follows: apparent diffusion coefficient (ADC) values ranged from 0.453 (ADC_1) to 0.458 (ADC_4). Using the formulas (1) and (2) (see text), slightly higher values were calculated (ADC_2 = 0.459 and ADC_4 = 0.464)