CN202096218U - B ultrasonic diagnosis instrument with textural feature quantifying function - Google Patents

Abstract

The utility model discloses a B ultrasonic diagnosis instrument with a textural feature quantifying function, belonging to ultrasonic diagnosis equipment. A textural feature quantifying system is additionally added on an ordinary B ultrasonic diagnosis instrument, and the B ultrasonic diagnosis instrument comprises a B ultrasonic diagnosis instrument housing, a host system, a bus, a probe module, an acquisition control module, an image display module, a keyboard, a mouse and the like, wherein the software part of the host system comprises a main control module and a textural feature quantifying module, ultrasonic signals are received by a probe transmitting module, acquired by the acquisition control module, and then converted into a data image, and then the data image is transmitted to the host system to form a final interface, and is then displayed by the image display module. The B ultrasonic diagnosis instrument not only meets the requirement of doctors on quantitative analysis of the textural feature, but also can not cause the additional increasing of hardware cost. By the B ultrasonic diagnosis instrument with the textural feature quantifying function, the doctors can select an interested area in the image to carry out textural feature analysis, and stores relevant textural feature quantitative parameters for system analysis.

Description

B ultrasonic diagnostic apparatus with textural characteristics quantification function

Technical field

This utility model belongs to ultrasonic diagnostic equipment, particularly a kind of B ultrasonic diagnostic apparatus with textural characteristics quantification function.

Background technology

The ultrasonic diagnosis technology is a kind of non-intrusion type, economy and safe medical imaging diagnosis method.In clinical diagnosis, the doctor will use image texture features sometimes through perusal and empirical analysis ultrasonoscopy, like image light slippery, spot size etc., but also can't obtain accurate image statistics information.Common diasonograph also only provides some conventional morphology survey tools; Only energy measurement distance, angle, girth, area, volume, length are than, volume ratio or the like, the not survey tool of image texture characteristic (like fine and closely woven degree, spot size etc.) aspect.To this deficiency, the utility model discloses a kind of new B ultrasonic diagnostic apparatus, the B ultrasonic diagnostic apparatus that promptly has the image texture characteristic quantization function.

It is exactly to adopt mathematical method that the texture properties in the image is calculated and measures that textural characteristics quantizes.Textural characteristics quantification parameter is the same with the parameter that other normal image instrument is surveyed, can auxiliary diagnosis.Image averaging echo intensity, the uniformity, roughness or the like are typical image texture characteristic quantization parameter.Wherein, mean intensity is the meansigma methods of gradation of image; The uniformity is the regularity and the conforming tolerance of variation of image grayscale; Roughness is the tolerance of picture element size.In addition, image texture characteristic also has fine and closely woven degree, spot size or the like.

Summary of the invention

For auxiliary diagnosis, this utility model has designed the ultrasonoscopy textural characteristics and has quantized system, and is integrated in the B ultrasonic diagnostic apparatus, thereby has realized that has the B ultrasonic diagnostic apparatus that textural characteristics quantizes function.The doctor can select the textural characteristics analysis that interesting areas is correlated with in the image, and the relevant textural characteristics quantification parameter of storage, so that statistical analysis.

The technical scheme that this utility model is realized is following: the B ultrasonic diagnostic apparatus with textural characteristics quantification function mainly is made up of host computer system (comprising that main control module and textural characteristics quantize module), bus, probe module, acquisition control module, image display, keyboard and mouse etc.Ultrasonic signal is received by the probe emission, after the acquisition control module collection, converts digital picture into, delivers to host computer system again with the formation end interface, and shows through image display.On B ultrasonic diagnostic apparatus host computer system, be provided with the image texture characteristic quantization modules, this module allows user in image, freely to select interesting areas as required, need also can select quantized textural characteristics; This module will be calculated the textural characteristics of institute's favored area automatically and send image display to show the result then; Last user can select to preserve the result that textural characteristics quantizes as required.

The advantage of this utility model is: only on B ultrasonic diagnostic apparatus processor system, added the quantized software module of image texture characteristic, just satisfied the demand that the doctor carries out quantitative analysis to image texture characteristic, do not increased extra hardware.In addition, the result of image texture characteristic quantitative analysis can derive or preserve, and in order to doctor's reference in later stage diagnosis, or uses when carrying out statistical analysis.

Description of drawings

Fig. 1 is the system construction drawing of this utility model;

Fig. 2 is the interface sketch map that textural characteristics quantizes module;

Description of reference numerals: 1-main window; The 2-image window; The 3-ultrasonoscopy; The 4-area-of-interest; The 5-menu; The 6-main menu; 7-quantized result table.

The specific embodiment

As shown in Figure 1: the B ultrasonic diagnostic apparatus with textural characteristics quantification function mainly is made up of host computer system (comprising that main control module and textural characteristics quantize module), bus, probe module, acquisition control module, image display, keyboard and mouse etc.Wherein, the main control module of host computer system is responsible for controlling whole real-time system, and friendly User Interface is provided; Acquisition control module be responsible for to accomplish mainly that scan conversion, wave beam are synthetic, signal processing and Flame Image Process or the like.Ultrasonic signal is received by the probe emission, after the acquisition control module collection, converts digital picture into, delivers to host computer system again with the formation end interface, and shows through image display.User can select the textural characteristics quantification module of host computer system that image is carried out the textural characteristics quantification according to demand.

As shown in Figure 2: user is selected textural characteristics to quantize menu and got into main window 1, and is mutual through mouse and keyboard and main window 1.At this moment, user can define in the image window 2 interesting areas 4 on the ultrasonoscopy 3, and can be through the quantized textural characteristics of menu 5 selection needs.After the user setting finished, textural characteristics quantized the automatic calculating of module and textural characteristics is quantized the result to be presented in the quantized result table 7 on the image window 2.At last, user can select whether to preserve quantized result table 7 through main menu 6.

Be that example provides the concrete computational methods of textural characteristics quantification module about this textural characteristics with spot size (SS) below.Spot size (SS) is meant the particulate mean size of all hot spots that exists in the ultrasonoscopy, also is one of important evidence of some disease of diagnosis.

Textural characteristics quantizes module after the region of interest ROI of obtaining user's selection; Use Gaussian function

and

of two different scales respectively region of interest ROI to be carried out convolution algorithm; And obtain the difference of image after two convolution; Behind thresholding, obtain a bianry image B again, its concrete computational methods are shown in formula (1):

$B(x,y)=\left\{\begin{array}{cc}1,& G_{{\mathrm{\&sigma;}}_1}*\mathrm{ROI}(x,y)-G_{{\mathrm{\&sigma;}}_2}*\mathrm{ROI}(x,y)\&GreaterEqual;T\\ 0,& G_{{\mathrm{\&sigma;}}_1}*\mathrm{ROI}(x,y)-G_{{\mathrm{\&sigma;}}_2}*\mathrm{ROI}(x,y)<T\end{array}\right.---\left(1\right)$

$G_{{\mathrm{\&sigma;}}_1}=\frac{1}{2\mathrm{\&pi;}{\mathrm{\&sigma;}}_1^2}{e}^{-\frac{x^2+y^2}{2{\mathrm{\&sigma;}}_1^2}}$

$G_{{\mathrm{\&sigma;}}_2}=\frac{1}{2\mathrm{\&pi;}{\mathrm{\&sigma;}}_2^2}{e}^{-\frac{x^2+y^2}{2{\mathrm{\&sigma;}}_2^2}}$

Wherein: (x, y) for the capable y of x in the region of interest ROI lists gray values of pixel points, (x, y) for the capable y of x among the bianry image B lists the value of pixel, T is given threshold value to B to ROI, σ ₁And σ ₂Be respectively two Gaussian functions With

The standard deviation parameter, general σ ₁＜σ ₂

At last, textural characteristics quantizes module and counts among this bianry image B the not number of connected region (being the hot spot number), and calculates these not gross areas of connected region (being the hot spot gross area).So, spot size (SS) just equals the ratio of facula area and hot spot number, shown in formula (2):

$\mathrm{SS}=\frac{a\left(B\right)}{n\left(B\right)}---\left(2\right)$

Wherein: a (B) the not gross area of connected region is the hot spot gross area, and n (B) is that the number of connected region is not the hot spot number.

Claims (2)

1. one kind has the B ultrasonic diagnostic apparatus that textural characteristics quantizes function; Form by B ultrasonic diagnostic apparatus shell, host computer system, bus, probe module, acquisition control module, image display, keyboard and mouse etc.; It is characterized in that: host system software comprises that partly main control module and textural characteristics quantize module, and ultrasonic signal is received by the probe emission, after the acquisition control module collection, converts digital picture into; Deliver to host computer system again with the formation end interface, and show through image display.

2. the B ultrasonic diagnostic apparatus with textural characteristics quantification function as claimed in claim 1; It is characterized in that: textural characteristics quantizes functional module and selects to call through menu; Select interesting areas on the ultrasonoscopy by mouse and keyboard input; And the quantized textural characteristics of selection needs, textural characteristics quantizes the result and can on display module, show, and can be kept on the storage medium of host computer system.

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