I got visa acceptance for fall 2018 if defer my admission to spring 2019 do i need to attened visa interview

I got f1 visa for 2018 fall but unfortunately due to some personal issues I want to go for spring 2019.i am having question about if i defer to spring 2019 do i need to go visa interview again.please suggest answer to my question

If it is same school and have same SEVIS I20 number on it and it is less than 5 months, you do not have to attend visa interview.