When I applied EM wave on breast model(has tumor) and request SAR(average and by medium), It appeared in POSTFEKO that SAR in tumor region has negative value . What is the meant of the negative sign in SAR value .
| frequency | 30Hz |
| Average SAR by whole volume | 3331.7 W/Kg |
| Skin | 32053.8 W/Kg |
| Fat | 1252.37 W/Kg |
| Normal | 621967 W/Kg |
| Tumor | -315.69 W/Kg |
