The vast majority of them do not allow copying. The reason is because of the fear of connecting the copy of the equipment with a virus, once infected with ultrasound equipment, may lead to data loss or equipment damage, ultrasound equipment is almost always hundreds of thousands or millions of dollars, and now the general ultrasound are millions of dollars of equipment, if the damage caused by the estimated ultrasound physician at least serious disciplinary action, and even be claimed. Moreover, the copying of this item is not chargeable and there is no relevant fee schedule. Who would be willing to take such a big risk to do it without making a profit?
In fact, as a patient, there is no need to ask for that data. Many patients can't read it, and those who can read it don't need that data.