Rani Gupta Sah1, Uma Sharma1, Rajinder Parshad2, Naranamangalam R. Jagannathan1
1Department of NMR and MRI Facility, All India Institute of Medcial Sciences, New Delhi, Delhi, India; 2Department of Sugical Disciplines, All India Institute of Medcial Sciences, New Delhi, Delhi, India
ADC calculated using Diffusion weighted MRI from various regions of normal breast of 9 volunteers revealed cyclic variation in ADC of para-areolar region during various phases of menstrual cycle. In para-areolar region, ADC was 1.9 0.01 during proliferative phase and reduced to 1.73 0.03 and 1.70 0.04 during follicular and luteal phases. It increased to 1.91 0.16 and 1.98 0.15 during secretory and menstrual phases. No change was observed for upper, lower and central quadrants. Assessment of breast disease using ADC needs careful consideration of location and effect of menstrual related variation in tissue characteristics.