JPS5841537A - 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 The present invention reads the image data once stored in the image memory and performs 5TC (sensitivity time control) processing. This invention relates to a ``fc marine wave diagnosis device'' that enables signal processing.

Conventional ultrasound diagnostic equipment! As shown in FIG. By giving the STC circuit 6 a high amplification factor for the reflected wave from far away, STC processing is performed to make a uniform signal '#i', and the Kugami LOG is increased. After envelope detection is performed at the cycle, digital tomographic data is obtained via the A/D converter 7 and stored in the image memory 8.The contents are sequentially outputted and input into the digital signal processing unit 9, and one part of the tomographic screen is output. In addition, a mine location is selected, converted to analog data by the D/A converter 10, and displayed on the display device 11.In this case, the image data stored in the image memory 8 is stored in the 5TCfi salt multiplied by -# in the previous stage. However, it often occurs that the area is insufficient locally, causing inconvenience in diagnosis.

An object of the present invention is to provide an ultrasonic diagnostic apparatus that performs highly detailed STC processing on image data stored in an image memory.

In order to achieve the above object, the ultrasonic diagnostic apparatus of the present invention transmits ultrasonic waves to a diagnostic object, receives reflected waves, temporarily stores the reflected waveform in a 1i11 image memory, and reads and displays an ultrasonic wave from the 1m* image memory. The ultrasound diagnostic apparatus is characterized in that a signal read from the image memory is multiplied by a circuit whose gain increases sequentially in a direction parallel to the scanning line.

The present invention will be described in detail below with reference to examples.

Figure 2 and Figure #15 are 1! of the present invention, respectively! It is an explanatory view showing the composition of an example of a section.

In either case, the analog body number Shima Ribu 5 shown in Fig.
The image data processed in is input to A/D 7. In this case, the STC circuit 6 processes j! ! You may or may not do so.

The data converted digitally by A/D 7 is stored in the image memory 8 in the same way as in Fig. 1, or after that
In the figure, the next digital data successively output from the image memory 8 is added to the STC data from the STC circuit 21 in the synthesis section 20. (5) O addition is performed on both data to correct the data. The corrected data is processed by the digital signal processing section 9 as selected by the diagnostician, and then converted into an analog signal by the digital signal processing unit 10 and displayed on the display device 11i'c.

In Fig. 5, the summation of the Hiro STC data is done in analog.The digital data successively generated from the Ryozo memo v8 is processed in the Hiro direct digital value processing unit 9 according to the diagnostician's selection, and the output is D. /A10 converts it into a p analog signal, adds it to the analog data from the 8TC circuit 21' in the synthesis section 20', and sends this corrected data to the display device 11.
[Send to] display.

FIG. 4 shows a specific circuit example of the embodiment shown in FIG. 2.

In the same figure, the STC circuit 21 is provided in an STC memory 52 set by a volume 51 on the control panel, and the digital signal processing unit 9 is provided in an image memory 8 and an S'I'
A microprocessor 34 controlled by a keyboard 65 is provided at the threshold of the C memory 32.

(4) Furthermore, the diagnostician prepares a light pen 35 for specifying a desired local area on both sides of the tomogram specified on the keyboard 33;
Via interface 36! Specified position information is input to the microprocessor 54. Along with this designation by operating the light pen 35, the STC data is set in the JSTC memory 32 by the volume 51 on the panel. In this way, the digital data from the image memory 8 and the TC data in the STC memory 52 are transferred to the microprocessor 34.
The signals are synthesized by the signal synthesis section 20 under the control of the digital signal processing section 9, processed by the digital signal processing section 9, converted into analog signals via the D/A 10t, and displayed on the display screen 11. In this way, the diagnostician can designate a desired local part of the tomographic plane using the keyboard and light pen, and perform a finely detailed %A diagnosis by locally different STC processing. Furthermore, STC control related to data in the image memory can be performed with high precision. For example, the average value of the image data can be calculated by a microprocessor, and the DSTC4G and It can be controlled based on that value.

In addition, conventional digital signal processing was performed using ROM etc. (5), but this function has been implemented using the STC memory 52.
can be used.

As explained above, according to the present invention, the content of the image data once stored in the image memory is read out and the 5TCJ611
By doing so, it becomes possible to perform detailed local diagnosis desired by the diagnostician and perform accurate signal processing based on the content data of both image memories61), further enhancing the effectiveness of the ultrasound diagnostic equipment. It is useful for

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the company's conventional example, Figures 2 and 6 are respectively explanatory diagrams of the configuration of the embodiment of the #l1Oa part of the present invention, and Figure 184 is an explanatory diagram of the second example.
In the figure, 1 is a living body 12 is a transmitter, 3 is a transducer, 4-wire receiver, 5 is an analog signal input unit, 6.21.21' is an STC circuit, 7 Hiro A/D
Converter, 8 is an image memory 9 is a digital signal processing section, 1
0 is a D/mu converter, 11 is a display device, 20.20'a synthesis unit, 31 is a volume on the panel, 52 is a memory for STC 3 is a keyboard, 34 is a microprocessor, 55
Line right Ben, 36 indicates in (6) tough ace. 41fIff Applicant Fujitsu Limited Sub-Agent Patent Attorney 1) Yoshishige Saka (7) Procedural Amendment (Voluntary) 1988 - λΩ Day% Pestle Agency Commissioner Kazuo Wakasugi Indication of Case 1988 Special Fraud Application No. 140541 No. 2, Title of the invention: Ultrasonic diagnostic device 5, Relationship with the person making the amendment: Address of the applicant: 1015 Kamiodanaka, Nakahara-ku, Yozaki-shi, Kanagawa Name (522) Fujitsu Limited Representative Yamamoto Kuruma 4, sub-agent, 17゜<x) fMIA#ml Page, J & bottom line amended as follows. (2) Lines 5 to 18 of the second car of the same number Correct the eyes as follows. ``Conventional ultrasound diagnostic equipment, as shown in Figure 1,
On the other hand, the transmitter 2 sends out an ultrasonic beam in a fan shape via the transducer 5, the reflected wave is received by the receiver 4, and the analog 1! After the LOG amplification is performed in the i-room 485, and the STC processing is performed so that the envelope transverse wave and the reflected wave from a distance are given a high amplification factor by the STC circuit 6 to make the signal width almost uniform. , digital data is obtained through the A/D converter 7 and stored in the image memory 8. This content is successively inputted into the digital signal processing unit 9, a part or local area of the tomographic screen is selected, and the D/A converter 1
0, it is converted into analog data and displayed on the display device dIt11. In this case, the data stored in the -1 memory 8 and the data stored in the -1 memory 8 are multiplied in the same way in each scanning direction by the -1 STC.
Because the process is a process, it often occurs that the process is insufficient locally, resulting in inconvenience. There is also the inconvenience that the STC cannot be made variable for images once frozen. ” (3) Page 3 of the same book, line 47, “Gain increases sequentially.”
The statement "gain changes sequentially" is corrected.

Claims (2)

[Claims] (1) In an ultrasonic diagnostic apparatus that transmits ultrasonic waves to an object to be diagnosed, receives reflected waves, temporarily stores the received signals in an image memory, and displays the image memo IJ, where the = Ua memory 1. An ultrasonic diagnostic apparatus characterized by comprising a bolus device whose gain changes in a direction corresponding to the ultrasonic transmission direction with respect to successive signals. (2)! ! The i! %#F, which is characterized by a series of image memories and a number of logical means to escape! F11ii The ultrasonic diagnostic apparatus according to item 1.