Fibroid Mapping Treatment Fibroid mapping is done using transvaginal 3D or 2d scan imaging to create detailed, three-dimensional images of the uterus and identify fibroids (non-cancerous tumors) that may be present. Fibroid mapping involves specifying the size, location, and number of fibroids, which can help determine the best treatment course. During a transvaginal 3D fibroid mapping scan, a transducer (a wand-like device) is inserted into the vagina and moved around to create images from different angles. Fibroid mapping using a transvaginal 3D scan can help diagnose and monitor fibroids' growth. This procedure is non-invasive and painless. It can provide valuable information t can be used to determine the best course of treatment. It's important to note that Fibroid mapping using a transvaginal 3D scan is a screening test.