A photo-frame shaped holder is disclosed, including a photo frame panel provided with a first window, a frame slot unit disassemblably installed at the backside of the first window of the photo frame panel, and a supporting plate pivotally arranged in the frame slot unit. A one end of a core wire is exposed from an insulation cover. The exposure time is divided into time intervals. The electrical circuit can include a tracking device configured to transmit a signal to the MRI system indicative of the position of the tracking device relative to a roadmap image, and an imaging device electrically coupled to the tracking device and configured to internally image anatomical structures from the point of view of the medical device. An actuator is mounted on the superstructure and connected to the upper slidable structural member within an area within the guide posts.