Gyne Doppler refers to the use of Doppler ultrasound in gynecology to assess blood flow in pelvic organs and masses, often using standardized terminologies from groups like IOTA (International Ovarian Tumor Analysis), MUSA (Morphological Ultrasound Sonography Assessment), and IETA (International Endometrial Tumor Analysis), which provide a system for describing and analyzing ovarian and endometrial ultrasound findings to determine the risk of malignancy or benignity.