Where tech meets health: One Year of 3D Mammography at St. Joseph Hospital Nov 4, 2017 Contributor: kiem-tv It’s been a year since a state of the art 3D Mammography Machine was installed at St. Joseph Hospital in Eureka. The machine can construct a three-dimensional image of a woman’s breast using digital mapping technology. The device is especially useful in detecting tumors in women with dense breast tissue. Traditional mammography equipment works great in detecting tumors in fatty or normal breasts, but the denser tissue can lead to false positives or unclear images. “Imagine a glass of milk with a marble inside,” Dr. Donald Wheeler, the director of diagnostic imaging at St. Joseph explains. Finding that marble is difficult unless you remove the milk one layer at a time. The 3D Mammogram ‘cuts through the layers’ so to speak. Fatty breast tissue, which is more common in older women, is more like water. Finding the marble in a glass of water is much less difficult. Read more.