Method for determining annulus size of bicuspid valve

A system for determining a size of a bicuspid annulus of bicuspid, the system comprising:

• an image acquisition unit which acquires an image of a heart comprising a left ventricle and an aorta;
• a plane generation unit which generates a first plane that passes through a sinus of Valsalva of the bicuspid, with respect to the bicuspid that passes through three base points comprising a raphe of the image of the heart, and generates multiple second planes by moving the first plane in parallel by a predetermined interval in the direction of the left ventricle outflow;
• and
• a bicuspid annulus size measurement unit which, in a case where the three base points disappear from the multiple second planes, measures the size of the bicuspid annulus based on the plane generated immediately before the last parallel movement among the multiple second planes.

A non-transitory computer-readable recording medium on which a program comprising instructions for causing a processor to perform a method for determining a size of a bicuspid annulus of bicuspid, the method comprising:

• acquiring an image of the heart comprising a left ventricle and an aorta;
• generating a first plane, which comprises a line that passes through two base points in the bicuspid of the image of the heart and generating multiple second planes, which are obtained per each rotation, while rotating the first plane multiple times by a predetermined angle about the line that passes through the two base points;
• measuring a cross-sectional area of each of at least one of the left ventricle and the aorta, which are formed on the first plane and the multiple second planes;
• selecting a plane for measuring the size of a bicuspid annulus among the first plane and the multiple second planes based on the measured cross-sectional area;
• and
• measuring the size of the bicuspid annulus based on the selected plane.