标准是:
1: fibroglandular tissue % < = 25% ( fatty)
2: 25% < fibroglandular tissue% < = 50% ( scattered dense)
3: 50% < fibroglandular tissue% < = 75% ( heterogeneously dense)
4: fibroglandular tissue% >75% (extremely dense)
一些临界情况的分类可能会因医生而异。
标准是:
1: fibroglandular tissue % < = 25% ( fatty)
2: 25% < fibroglandular tissue% < = 50% ( scattered dense)
3: 50% < fibroglandular tissue% < = 75% ( heterogeneously dense)
4: fibroglandular tissue% >75% (extremely dense)
一些临界情况的分类可能会因医生而异。