| 摘要 |
FIELD: physics.SUBSTANCE: ultrasonic diagnostic system of image formation for the analysis of the foetus heart contains a probe for forming of the three-dimensional image, user controls, movement estimation device responding to the signals reflected from the specified place, probe controller responding to the time gate signal, and display responding to sets of the three-dimensional data for forming of three-dimensional heart image. The probe is designed with a possibility of obtaining of data sets of the heart image of and reflected signals in M-mode from the selectively set M-line. The user controls are designed with a possibility of positioning of M-line cursor marking the movement location in anatomic structure on the ultrasonic image, which represents a palpitation cycle. The movement estimation device is designed with a possibility of processing of signals, reflected from M-line, for generation of time gate signal with reference to the palpitation cycle. The probe controller is designed with a possibility of instructing the probe to obtain the three-dimensional data sets in given phases of the palpitation cycle, as it is specified by the time gate signal, for forming of three-dimensional images. Meanwhile the foetus heart image is formed using two-dimensional or three-dimensional ultrasonic images. The M-line cursor is moved to the heart beating location. One-dimensional reflected signals in M-mode from the heart beating location are received. A gated data retrieval signal from the information on reflected signals against the background of heart beating is synthesized. The gated three-dimensional heart-related data sets, using a synthesized gated data retrieval signal are obtained. A sequence of dynamic three-dimensional heart images from the three-dimensional data sets is formed.EFFECT: invention allows to obtain the images according to a cardial cycle of foetus without the need in additional image data arrangement.14 cl, 9 dwg |
