An arteriosclerosis detection system including an electrocardiographic signal
detection device, an eyeground image detection device for detecting an eyeground
image in synchronization with an electrocardiographic signal detected by the detection
device. The arteriosclerosis detection system further includes an eyeground vein
constriction detection device for detecting the constriction of an eyeground vein
in the vicinity of a site at which the eyeground vein and an eyeground artery cross
each other. The constriction is detected based on the detected eyeground image
in synchronization with the electrocardiographic signal. The arteriosclerosis detection
system detects the eyeground image by executing an algorithm of software, which
provides an eyeground image synchronized with an electrocardiographic signal by
obtaining a stationary eyeground image synchronized with an arbitrary electrocardiographic
signal from an animated eyeground image.