The Martha’s Vineyard Hospital announced this week that it will begin providing 3D mammography in the spring of 2015, thanks in large part to the generosity of two Chilmark summer residents.

Late last year the hospital focused its year-end fundraising campaign on an appeal to help bring state-of-the-art digital tomosynthesis (3D mammography) to the Vineyard. The technology produces a three-dimensional view of breast tissue that helps radiologists with better techniques for early cancer detection.

After the hospital had begun fundraising, Shelley and Allan Holt of Chilmark and Washington, D.C., offered to fully fund the $400,000 project. The Holts were also among the many large donors to the new hospital building a few years ago.

“We can’t thank them enough for their continuing generosity and community spirit,” said hospital board chairman Timothy Sweet in a press release.

The hospital now hopes to buy a Phillips heart monitoring system, a new system that uses advanced technology for reading vital signs. Donors who gave money to the 3D mammography project will be asked for permission to redirect their funds to the heart monitoring system purchase.