The invention discloses a
tomography system inside a
blood vessel. The
tomography system comprises an imaging
catheter, an
optical fiber movement controller, a
tomography module, a
data collecting module and a
data processing and displaying module which are connected in sequence. The light emitted by the tomography module is transmitted to the imaging
catheter through the
optical fiber movement controller, the light is concentrated on a target
blood vessel wall through the imaging
catheter, and the
optical fiber movement controller drives the imaging catheter to conduct rectilinear motion inside a target
blood vessel at the same time of rotating at a high speed. The reflected light of different
layers of the target blood vessel wall is collected and transmitted to the optical
fiber movement controller and the tomography module in sequence by the imaging catheter, the tomography module demodulates the received reflected light into intensity information and then converts the intensity information into electrical signals, the
data collecting module collects and transmits the electrical signals to the
data processing and displaying module, and the
data processing and displaying module processes, generates and displays cross-section image information of the blood vessel. By means of the tomography
system inside the blood vessel, the high-speed tomography of the blood vessel can be achieved.