"The time of acquisition for a conventional spin echo or gradient echo sequence is the product of the repetition time, phase encoding steps, and number of averages (TR x phase steps x NEX)."
"The time of acquisition for a conventional spin echo or gradient echo sequence is the product of the repetition time, phase encoding steps, and number of averages (TR x phase steps x NEX)."
"For example, with a one-second TR, 128 phase steps, and two averages, we would get an acquisition time of about 1 x 128 x 2 = 256 seconds, or 4 minutes and 16 seconds. The actual time will be slightly longer."