Abstract: An X-ray diagnostic apparatus includes an X-ray imaging unit including an X-ray tube and an X-ray detecting unit to generate an X-ray image, an image generating unit generating a 3D non-blood vessel image and a 3D blood vessel image from an original 3D image generated by the X-ray diagnostic apparatus or an X-ray CT apparatus, a projection image generating unit generating a non-blood vessel projection image from the 3D non-blood vessel image and generating a blood vessel projection image from the 3D blood vessel image, a positional shift identifying unit identifying a positional shift between the X-ray image and the non-blood vessel projection image, a correcting unit correcting a positional shift of the blood vessel projection image on the basis of the positional shift, and a display unit which displays the X-ray image and the corrected blood vessel projection image.

Abstract: A method for determining suitability of a device, such as a stent, for delivery through a vessel comprises the steps of generating a model representing positions of the device within the vessel, and evaluating the model to ascertain a degree of risk associated with delivery of the device through the vessel. The model may be generated based upon data describing the vessel and data describing the device. In a preferred embodiment, a color-coded image of the vessel is generated to report local vessel tortuousity relative to the device.

Abstract: To improve performance, a motor varies its current draw based upon its input voltage. To that end, the motor has an input for receiving an input voltage, and a current controller operatively coupled with the input. The current controller is capable of detecting the current drawn by the motor. In addition, the current controller is capable of changing the current draw as a function of the input voltage.