Disclosed in the present application are a transcranial three-dimensional cerebrovascular compound imaging method and system. The method comprises: first, using an annular array probe with capability of automatic scanning to send ultrasonic signals having different time delays to different scanning positions of an intracranial part, so that the ultrasonic signals are focused at a preset depth in the axial direction of a beam, so as to detect intracranial cerebral vessels by means of the focused ultrasonic signals and perform digital delay focusing on received echo signals to enhance the echo signals to improve the obtained spatial form and positional accuracy of the cerebral vessels, thereby improving the definition and detection rate of three-dimensional cerebrovascular images. Furthermore, the three-dimensional cerebrovascular images are obtained from different detection positions, and the intracranial cerebral vessels are compounded from multiple angles according to the three-dimensional cerebrovascular images, thereby further improving the definition of the three-dimensional cerebrovascular images. In addition, the annular array probe has the characteristics of small volume and low frequency, and thus can be conveniently worn on a head to achieve three-dimensional scanning and long-time monitoring of the intracranial cerebral vessels.
TRANSCRANIAL THREE-DIMENSIONAL CEREBROVASCULAR COMPOUND IMAGING METHOD AND SYSTEM