JPS6173641A - Ultrasonic diagnostic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an ultrasonic diagnostic apparatus that superimposes and displays other biological information (self-flow velocity distribution, biological sound velocity distribution, biological attenuation distribution) on an ultrasonic tomographic image. .

[Technical background of the invention and its problems] Conventionally, real-time ultrasonic diagnostic equipment that displays biological information such as blood flow velocity distribution in addition to ultrasonic tomographic images has been used to display the tomographic images in black and white and display the blood flow velocity distribution in the same way. Some display the flow velocity distribution in color so that the two can be easily distinguished.

In this case, in order to make a hard copy of the above-mentioned displayed image, a method of photographic removal using a color instant camera is adopted.

However, the stamp image taken with a color instant camera is
Colors deteriorate over time, and they are expensive, making them undesirable as a means of obtaining hard copies.

[Objective of the Invention] The present invention has been made based on the above circumstances, and its purpose is to display tomographic image information and two-dimensional blood flow information alternately in accordance with heartbeat synchronization, and to The object of the present invention is to provide an ultrasonic diagnostic apparatus capable of expressing the above image information using a hard copy system.

[Summary of the invention] Ultrasound diagnosis according to the present invention! In order to achieve the above-mentioned purpose, the lli device scans the inside of a subject with multiple ultrasound beams, and detects the subject based on ultrasound echo information obtained by receiving ultrasound echoes from inside the subject. An ultrasonic tomography device that obtains tomographic image information, a biological information detection device that detects biological information from the ultrasonic echo information, a heartbeat synchronization (ECG) circuit that detects heartbeats, and the ultrasonic tomography device a multiplexer circuit for selecting ultrasonic tomographic image information from the -h biological information detection device; a hard copy system for displaying a black and white image based on the output of the multiplexer circuit; The apparatus is characterized in that it is equipped with a monitor that displays an image based on the image, and displays the tomographic image information and the biological information in a time-sharing manner in accordance with heartbeat synchronization.

[Embodiment 1 of the Invention] Hereinafter, an ultrasonic diagnostic apparatus according to the present invention will be described according to an embodiment shown in FIG. That is, reference numeral 1 is an ultrasonic probe consisting of an array of transducers, and reference numeral 2 is a high voltage pulse applied to each transducer of the ultrasonic probe 1 at a constant period to transmit ultrasonic waves into a subject (not shown). An ultrasonic cutting device that obtains ultrasonic tomographic image information by emitting ultrasonic waves and receiving the ultrasonic echoes reflected from inside the object using the same transducer as above, and performing predetermined signal processing on the received signals. be.

3 performs phase detection on the received signal of the ultrasonic echo generated by the ultrasonic tomography device 2, filters the frequency component due to slow movement other than the blood flow signal of the wall of the living body, and extracts the Doppler frequency from this filtered output. This is a blood flow information detection device that calculates blood flow velocity information as a Doppler shift signal.

4 is a heartbeat synchronization (ECG) circuit that detects the heartbeat of the subject. 5, in response to the heartbeat signal from the heartbeat synchronization (ECG) circuit 4, transmits the ultrasound tomographic image information from the ultrasound tomography device 2 and the blood flow velocity information from the determination information detection device @3, for example, every -heartbeat. This is a multiplexer that selectively switches and outputs the output.

6 is a tin scan recorder for displaying black and white images;
7 is a black and white display monitor made of a CRT (cathode ray tube) or the like.

Next, the operation of this embodiment configured as described above will be explained. That is, the ultrasonic tomographic image and blood flow velocity information from the ultrasonic diagnostic apparatus 2 and the blood flow information detection apparatus 3 are input to the multiplexer 5, and the ECG circuit 4 outputs, for example, the second
As shown in the figure, the input of the multiplexer 5 is switched every other heartbeat, and the ultrasonic tomographic image and blood flow information are alternately displayed on the monitor 7, and the line scan recorder 6
This makes it possible to record and output in hard copy.

In addition, as shown in Fig. 3, the blood flow velocity information is divided into two parts depending on the direction of the blood flow, and the flow approaching the ultrasound probe 1 is defined as the forward direction, and the flow moving away from the ultrasound probe 1 is defined as the reverse flow. It may be displayed separately as . Furthermore, as shown in FIG. 4, the blood flow velocity information may be displayed in the upper part in the reverse direction and in the lower part in the forward direction.

As shown in Figures 2 to 4, if tomographic image information and blood flow information are separated and displayed time-divisionally in synchronization with heartbeat, both can be displayed as black and white images without using color hard copies. The images do not overlap and become difficult to see, and can be identified, making it possible to reduce the cost of the system.

Note that this embodiment does not use blood flow velocity distribution information as biological information! Although it is configured to be displayed superimposed on the image,
The biological information may be modified to use biological vA tissue sonic mapping, biological tissue attenuation constant mapping, or the like.

Other modifications may be made without departing from the spirit of the invention.

[Effects of the Invention] As described above, according to the present invention, an ultrasound echo obtained by scanning the inside of a subject with a plurality of ultrasound beams and receiving ultrasound echoes from inside the subject. an ultrasonic tomography device that obtains tomographic image information of the subject based on the information; a biometric information detection device that obtains biometric information from the ultrasound echo information; and a heartbeat synchronization (E) that detects heartbeats.
CG) circuit, a multiplexer circuit that selects ultrasonic echo information from the ultrasonic tomography device and biological information from the biological information detection device, and a hard copy system that displays a black and white image based on the output of the multiplexer circuit. , and a monitor that displays images based on the output of the multiplexer circuit, and displays the tomographic image information and the biological information in a time-sharing manner according to heartbeat synchronization, so that a hard copy system for black and white images is used. Accordingly, it is possible to provide an ultrasonic diagnostic apparatus that is capable of expressing the above image information.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an ultrasonic diagnostic device according to the present invention, and FIGS. 2 to 4 are diagrams for explaining the operation of the embodiment. 1... Ultrasonic probe, 2... Ultrasonic cutting W/4 device,
3... Blood flow information detection device, 4... Heart rate synchronization (ECG
) circuit, 5... multiplexer, 6... line scan recorder, 7... monitor.

Claims (2)

[Claims] (1) Scan the inside of the object with multiple ultrasound beams and obtain tomographic image information of the object based on ultrasound echo information obtained by receiving ultrasound echoes from inside the object. a biological information detection device for obtaining biological information from the ultrasonic echo information, a heartbeat synchronization (ECG) circuit for detecting heartbeats, and an ultrasonic tomographic image from the ultrasonic tomography device. a multiplexer circuit that selects information and biological information from the biological information detection device, a hard copy system that displays a black and white image based on the output of the multiplexer circuit, and a monitor that displays an image based on the output of the multiplexer circuit. An ultrasonic diagnostic apparatus characterized in that the tomographic image information and the biological information are displayed in a time-sharing manner according to heartbeat synchronization. (2) The ultrasound according to claim 1, wherein the biological information detection device is a blood flow information detection device that obtains two-dimensional blood flow information from the ultrasound echo information. Diagnostic equipment.