Method and system for assistance in guiding an endovascular instrument

A non-transitory computer-readable medium comprising a computer program stored thereon comprising instructions for implementing a method for assistance in guiding an endovascular instrument in vascular structures during execution of the program by a processor of a programmable device, wherein the instructions configure the programmable device to:

• capture with an imaging device positioned at different successive positions a plurality of partially superposed two-dimensional fluoroscopic images of an anatomical region of interest of the patient, and forming a first augmented image representative of a complete panorama of bones of said anatomical region of interest,
• capture a plurality of angiographic images corresponding to the plurality of fluoroscopic images, and forming a second augmented image, the second augmented image being a two-dimensional image representative of an arterial panorama of the anatomical region of interest,
• capture a new two-dimensional fluoroscopic image, called a current fluoroscopic image, of a portion of said anatomical region of interest,
• perform a template matching type registering of the current fluoroscopic image with respect to the first augmented image, so as to locate, based on a spatial correspondence of bone anatomical structures, a portion of the first augmented image corresponding to the current fluoroscopic image, and
• locate and display on a viewing unit an image region corresponding to said portion of the first augmented image in the second augmented image.

A method for assistance in guiding an endovascular instrument in vascular structures of an anatomical region of interest of the patient, the method comprising the following acts:

• capturing with an imaging device positioned at different successive positions a plurality of partially superposed two-dimensional fluoroscopic images of the anatomical region of interest of the patient, and forming a first augmented image representative of a complete panorama of bones of said anatomical region of interest,
• capturing a plurality of angiographic images corresponding to the plurality of fluoroscopic images, and forming a second augmented image, the second augmented image being a two-dimensional image representative of an arterial panorama of the anatomical region of interest,
• capturing with the imaging device a new two-dimensional fluoroscopic image, called a current fluoroscopic image, of a portion of said anatomical region of interest,
• performing a template matching type registering of the current fluoroscopic image with respect to the first augmented image, so as to locate, based on a spatial correspondence of bone anatomical structures, a portion of the first augmented image corresponding to the current fluoroscopic image, and
• locating and displaying on a viewing unit an image region corresponding to said portion of the first augmented image in the second augmented image.