Device and method for intraluminal imaging for the reconstruction of 3D image data sets

A device for recording an intraluminal sectional image of a human medical patient, comprising:

• an imaging instrument for recording the intraluminal sectional image;
• a transport unit connected to the imaging instrument for moving the imaging instrument in a lumen of the patient at a defined speed over a defined distance;
• a rigid guide pipe which is mechanically connected to the transport unit for guiding the imaging instrument within the guide pipe, the guide pipe comprising:
• an internal, hollow, nonlinear path constructed and arranged to guide the imaging instrument, wherein a diameter of the internal hollow path is matched to an external diameter of the imaging instrument, and
• material which is transparent for a radiation or for a wave used in the recording;
• and
• a control and evaluation unit which carries out a registration of the imaging instrument with the guide pipe using the marking on the guide pipe which is visible in the sectional image.

A method for reconstructing a three-dimensional image data set with an intraluminal sectional image of a human medical patient, comprising:

• introducing a guide pipe with a marking that is detectable in the sectional image into a lumen of the patient;
• inserting an imaging instrument into the guide pipe;
• recording the intraluminal sectional image of the lumen;
• carrying out a registration of the imaging instrument with the guide pipe using the marking on the guide pipe which is visible in the sectional image;
• moving the imaging instrument by a transport unit at a speed in the guide pipe during the recording;
• computing a sectional image data for the recorded sectional image;
• determining a recording position of the sectional image along the guide pipe from the moving speed based on the registration and the known three dimensional course of the guide pipe;
• and
• creating a three-dimensional image data set of the lumen from the sectional image data of the sectional image considering the recording position known from the three-dimensional track of the guide pipe.