Patent ID: 11857370
Assignee: NATIONAL BANK OF CANADA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A system for visually assisting an operator of an ultrasound system comprising:
a data store for storing a first imaging data of a first anatomical region using a first coordinate system, the first imaging data marked with a landmark for identifying the first anatomical region;
an ultrasound transducer for collecting:
live ultrasound image data of a second anatomical region, and
positional information for the ultrasound transducer, including positional information corresponding to an alignment line of the second anatomical region;
a processing unit for:
receiving positional information for the ultrasound transducer corresponding to the alignment line of the second anatomical region, the alignment line being a user selected line of the second anatomical region corresponding to the landmark in the first anatomical region, and the positional information being a roll angle of the ultrasound transducer corresponding to the alignment line, wherein, the landmark and the positional information for the ultrasound transducer corresponding to the alignment line of the second anatomical region are for aligning the first imaging data to the live ultrasound image, and
transforming the first imaging data of the first anatomical region from the first coordinate system to a cylindrical coordinate system, wherein the first coordinate system is different than the cylindrical coordinate system; and

a display device for:
displaying the live ultrasound image of the second anatomical region;
displaying a transformed image from the transformed first imaging data of the first anatomical region corresponding to the alignment line that includes the landmark, wherein the transformed image and the live ultrasound image are displayed simultaneously; and
overlaying indicia on the transformed image indicating the roll angle of the ultrasound transducer, wherein the indicia changes in response to a change in the roll angle of the ultrasound transducer.