IMAGING APPARATUS FOR DIAGNOSIS AND PROGRAM

摘要

An imaging apparatus is disclosed for diagnosis including a plurality of transmitting and receiving units, an error of a scale of a tomographic image to be generated is reduced. The imaging apparatus can include including acquisition means for acquiring a propagation velocity of an ultrasound signal of a flushing liquid, generation means for generating ultrasound line data based on the propagation velocity of the ultrasound signal in a blood vessel tissue, and conversion means for converting positional information of each position within a range in which the flushing liquid flows regarding the ultrasound line data generated by the generation means based on a ratio between the propagation velocity in the blood vessel tissue and the propagation velocity in the flushing liquid. A tomographic image of a blood vessel is constructed by using the ultrasound line data converted by the conversion means.

主权项

1. An imaging apparatus for diagnosis constructing a first tomographic image and a second tomographic image inside a lumen of a measurement subject body by using an ultrasound signal which is transmitted and received by a first transmitting and receiving unit and an optical signal which is transmitted and received by a second transmitting and receiving unit in a case where a transmitting and receiving unit in which the first transmitting and receiving unit performing transmission and reception of the ultrasound signal and the second transmitting and receiving unit performing transmission and reception of the optical signal are disposed moves in an axial direction while rotating in the lumen of the measurement subject body, the apparatus comprising:
acquisition means for acquiring a propagation velocity of the ultrasound signal in a medium flowing inside the lumen; generation means for generating ultrasound line data indicating strength of a reflection signal from each position in a transmitting and receiving direction of the ultrasound signal based on a predetermined propagation velocity; and conversion means for converting positional information of each position within a range in which the medium flows regarding the ultrasound line data generated by the generation means based on a ratio between the predetermined propagation velocity and the propagation velocity which is acquired by the acquisition means, wherein the first tomographic image is constructed by using the ultrasound line data which is converted by the conversion means.