| 摘要 |
An imaging system (10) is disclosed that uses piezoelectric markers (12). The piezoelectric markers (12) generate electric fields when they are illuminated by ultrasound and these electric fields in combination with ultrasound reflections can be used to construct an image of an otherwise difficult to detect feature within a subject's body (14). In one embodiment, the invention includes a piezoelectric marker (12), including at least one piece of piezoelectric material, an ultrasound transducer connected to an ultrasound pulser (20) and a receiver (22), a computer sequencing control (24) connected to the receiver (22) and the ultrasound pulser (20), a display (26) connected to the computer sequencing control (24) and electrodes (18) connected to the computer sequencing control (24) via amplification circuitry (30). |
