CN102688071A - Ultrasonic superficial tissue and organ volume scanning fracture imaging method - Google Patents
Ultrasonic superficial tissue and organ volume scanning fracture imaging method Download PDFInfo
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Abstract
The invention discloses an ultrasonic superficial tissue and organ volume scanning fracture imaging method, comprising the following steps of: collecting a continuous multi-frame two-dimensional ultrasonic image of the superficial tissue and organ by an ultrasonic probe, wherein each frame of two-dimensional ultrasonic image corresponds to a section of the superficial tissue and the organ; preprocessing the continuous multi-frame two-dimensional ultrasonic image to obtain the preprocessed volume data, wherein the preprocessing includes filtration, enhancement and division; reconstructing three sections of a cross section, a vertical plane and a coronal plane based on the processed two-dimensional image to obtain the multi-section image of the superficial tissue and the organ, wherein orthogonal section synchronous processing is carried out on the three-section image so that the cross section, the vertical plane and the coronal plane perform are subjected to time synchronization and space synchronization, and the three orthogonal section synchronous processing includes time synchronous processing and space synchronous processing. By utilizing a regular superficial linear array probe, the fracture imaging process is simple, and the superficial tissue and organ volume scanning fracture imaging device is miniaturized and convenient.
Description
Technical field
The present invention relates to medical imaging technology, relate in particular to a kind of ultrasonic superficial tissue and organ volume scan tomograph imaging method.
Background technology
Ultrasonic (Ultrasound) medical science is acoustics, medical science, optics and electronics subject combining.The acoustic technique that all research is higher than audio frequency is a ultrasound medicine in application on medical field.Comprise ultrasonic diagnosis, ultrasonic therapeutic and biomedical ultrasonic engineeing, so ultrasound medicine has doctor, reason, worker's three bonded characteristics, the content that relates to is extensive, in prevention, diagnosis, treatment disease, very high value is arranged.
An important project in the ultrasound medicine is exactly a ultrasonic imaging technique.Ultrasonic imaging technique is exactly by a probe emission ultrasound wave and receives the ultrasound wave that reflects.Produce image according to hyperacoustic echo signal.Per second vibrates 20,000-1,000,000,000 times, and the unheard sound wave of people's ear is called ultrasound wave.The image subject that utilizes hyperacoustic physical characteristic to diagnose and treat is called ultra sonic imaging.Its clinical application range is extensive, has become indispensable diagnostic method in the current clinical medicine at present.
Conventional at present diagnostic ultrasonic equipment comprises main frame and probe; A main frame can have one, two or more probe; And dozens of can be installed down to thousand above wafers in a probe, these wafers are formed array elements, take turns to operate, transmit and receive acoustic energy successively.Wafer is made up of electrostriction material, serves as the power conversion of electricity, sound or sound, electricity, so be also referred to as transducer.The kind case of probe has single-frequency, multifrequency and wideband probe by the frequency branch.By the arrangement branch of piezoelectricity wafer linear array, ring battle array, protruding battle array are arranged, dividing by purposes has again in body surface, intracavity, the pipe or the like.
The ultimate principle of ultrasonic diagnosis is following: ultrasonicly in human body, propagate; Because the various tissues of human body have the property difference of acoustics, ultrasound wave produces physical characteristics such as reflection, refraction, scattering, diffraction, decay and sound source and receptor relative motion generation Doppler frequency shift at the interface at two kinds of different tissues.Use dissimilar diasonographs; Adopt various checking methods; Receive these reflections, scattered signal, show the form of various tissues and pathological changes thereof, binding of pathological is learned, clinical medicine; Observe, analyze, sum up different reflexive properties, and diseased region, character and dysfunction degree are made diagnosis.
The general common ultrasonic image of gathering is a two-dimensional image, the at present common ultrasonic technology of ultrasonic diagnosis the most widely that is to use.But two-dimensional image has its limitation, can only observe vertical body surface usually or the situation of organizing of certain angle tangent plane is arranged slightly, and it is bigger influenced by position etc., can't realize the inspections and examinations of coronalplane.
In recent years, in order to overcome the ultransonic deficiency of conventional general, researched and developed the three-D ultrasonic technology.The basic functional principle of three-D ultrasonic is following: guarantee traveling at the uniform speed of probe through mechanical technology; In the viewed two-dimensional image of the probe that travels at the uniform speed; With regular time interval sampling image, such as with 10ms being the two-dimensional image of gathering at interval by the probe collection.After having obtained a series of plane picture, these plane pictures are offered graphics workstation with the form of picture frame, carry out modeling by graphics workstation according to these picture frames, produce threedimensional model, reach the effect of three-D ultrasonic.Graphics workstation adopts a kind of three-dimensional volume tomographic techniques (iSlice) that is called to handle the two-dimensional image of being gathered by probe usually, these two-dimensional images is built into 3-D graphic, thereby can reconstructs all directions tangent plane (comprising coronalplane) image.Be used for the three dimensional ultrasound probe complex structure of superficial tissue and organ, outward appearance is square, and uses just as with an official seal affixed to focus, is difficult to obtain its complete image information for big slightly focus.Recently, based on the construction features that breast is put, ultrasonic producer has developed automatic mammary gland volume scan (auto breast volume scanner; ABVS); And begin to be applied to clinical at the part large hospital, and its probe adopts the long linear array probe of special 15.4cm, and scanning distance reaches 16.8cm.Guarantee traveling at the uniform speed of probe through mechanical technology, in the process that travels at the uniform speed,, reconstruct coronal image by graphics workstation then by certain time interval sampling two-dimensional image image.Because it is bulky, is not suitable for the detection at positions such as being applied to thyroid, extremity.Their common shortcoming is that application flexibility is not enough, and a complete set of equipment is with high costs, and a lot of hospitals are difficult to bear, and are not suitable for extensive popularization.
Summary of the invention
The present invention is intended to propose a kind of more convenient, is fit to the extensively ultrasound volume double Linear Scan Imaging method of popularization, is applicable to superficial tissue and organ.
According to one embodiment of the invention; A kind of ultrasonic superficial tissue and organ volume scan tomograph imaging method are proposed; Comprise the steps: to gather the continuous multiple frames two-dimensional ultrasonic image of superficial tissue and organ, a tangent plane of corresponding superficial tissue of each frame two-dimensional ultrasonic image and organ by ultrasonic probe.Said continuous multiple frames two-dimensional ultrasonic image is carried out pretreatment, obtain treated two dimensional image, i.e. volume data, said pretreatment comprises filtering, strengthens and cuts apart; Carry out tangent plane picture based on treated two dimensional image and rebuild, obtain the multiple sections image of superficial tissue and organ, said reconstruction comprises that carrying out cross section, sagittal plane and coronal image according to treated two dimensional image rebuilds.It is that three tangent planes (cross section, sagittal plane and coronalplane) are rebuild that wherein above-mentioned tangent plane picture is rebuild.
In one embodiment, the continuous multiple frames two-dimensional ultrasonic image comprises volume data information.The continuous multiple frames two-dimensional ultrasonic image is the DICOM form, and the frequency of collection is per second 30 frames.
In one embodiment, pretreatment comprises following step: two-dimensional ultrasonic image is carried out filtering eliminate noise; Obtain the data of tangent plane corresponding in each frame two-dimensional ultrasonic image; Data according to tangent plane are set up rectangular histogram; Confirm segmentation threshold according to rectangular histogram; Strengthen the area-of-interest in the two-dimensional ultrasonic image, strengthen based on intensity profile; Area-of-interest is cut apart.
In one embodiment, area-of-interest is cut apart comprised and use one of following method area-of-interest is cut apart: region growing, cut apart alternately entirely, Livewire and Fast marching.
In one embodiment, use and cut apart cross section, sagittal plane and the coronal image that corresponding Marching Cubes method is drawn superficial tissue and organ;
In one embodiment, cross section, sagittal plane and coronal image are drawn and are also comprised the synchronous and three quadrature tangent plane time synchronized of three quadrature tangent space.
In one embodiment, three quadrature tangent space be synchronously on superficial tissue and any spatial relation of organ volume data corresponding each other synchronously, three quadrature tangent plane time synchronized are that tissue and organ volume data random time pass fasten mutual corresponding synchronous.
In one embodiment, three quadrature tangent plane Synchronous Processing make cross section, sagittal plane and coronalplane spatially go up correspondence each other with the time, show synchronously.
Ultrasonic superficial tissue of the present invention and organ volume scan tomograph imaging method can adopt the DICOM data format; Be fit to cooperate with different ultrasonic probes; The process of volume fault imaging is simpler; Requirement that can the reduced graph work station, the volume Laminographic device can be realized miniaturization and facilitation.
Description of drawings
Fig. 1 has disclosed the flow chart according to ultrasonic superficial tissue of the present invention and organ volume scan tomograph imaging method.
Fig. 2 has disclosed according to pretreated flow chart in ultrasonic superficial tissue of the present invention and the organ volume scan tomograph imaging method.
The specific embodiment
With reference to shown in Figure 1, Fig. 1 has disclosed the flow chart according to ultrasonic superficial tissue of one embodiment of the invention and organ volume scan tomograph imaging method, and this method 100 comprises:
101. by the continuous multiple frames two-dimensional ultrasonic image of ultrasonic probe continuous acquisition superficial tissue and organ, a tangent plane of corresponding superficial tissue of each frame two-dimensional ultrasonic image and organ.In step 101, the present invention takes dual mode to obtain successive two-dimensional ultrasonic image.First kind of mode is to adopt traditional mechanical control ultrasonic probe at the uniform velocity mobile, with the fixed distance frequency, such as per second 30 frame images acquired.Another kind of mode is to adopt the mode of equidistance sampling, with the fixed interval images acquired, and makes the density of image of collection be equivalent to the level of per second 30 frames through a series of calibration labellings of being provided with at interval on a drift slide and the drift slide.In one embodiment, two-dimensional ultrasonic image is the DICOM form, and the frequency of collection is per second 30 frames, perhaps is equivalent to the collection density of per second 30 frames.
102. logarithm frame two-dimensional ultrasonic image carries out pretreatment, obtains treated two dimensional image, i.e. volume data, and pretreatment comprises filtering, strengthens and cuts apart.Fig. 2 has disclosed according to pretreated flow chart in ultrasonic superficial tissue of the present invention and the organ volume scan tomograph imaging method.As shown in Figure 2, pre-treatment step 102 comprises following process:
201. being carried out filtering, two-dimensional ultrasonic image eliminates noise.Filtering method is to noise, picture quality is relatively good now, but still need carry out filtering operation for some occasion, and filtering method relates to general Flame Image Process filtering.
202. obtain the data of tangent plane corresponding in each frame two-dimensional ultrasonic image.
203. the data according to said tangent plane are set up rectangular histogram.Rectangular histogram helps user-interactive to cut apart to confirm the value of explaining, understand general gradation of image distributed intelligence.
204. confirm segmentation threshold according to said rectangular histogram.
205. the area-of-interest in the enhancing two-dimensional ultrasonic image strengthens based on intensity profile.The figure image intensifying can be given prominence to the user's interest zone.
206. area-of-interest is cut apart.In one embodiment, in the step 206 area-of-interest cut apart and comprises and use one of following method area-of-interest is cut apart: region growing, cut apart alternately entirely, Livewire and Fast marching.In one embodiment, the result after cutting apart is added up, and be kept among the data base, can also change and saving result the form of various input data.
Rebuild 103. carry out tangent plane based on treated two dimensional image, obtain cross section, sagittal plane and the coronal image of superficial tissue and organ, the tangent plane reconstruction comprises according to treated volume data carries out the synchronous and time synchronizing of three quadrature tangent space.
Iso-surface patch uses and cuts apart the corresponding Marching Cubes method drafting superficial tissue and the tangent plane picture of organ in one embodiment.The tangent plane process of reconstruction is cut apart for different gray scales, extracts the tangent plane information of structures of interest, makes that the tangent plane picture of rebuilding is clear and intuitive, true to nature.
Synchronous and the time synchronizing of three quadrature tangent space guarantees that cross section, sagittal plane and coronalplane show synchronously on spatial distribution and time correspondence in one embodiment.In one embodiment, three quadrature tangent space be synchronously on superficial tissue and any spatial relation of organ volume data corresponding each other synchronously, three quadrature tangent plane time synchronized are that tissue and organ volume data random time pass fasten mutual corresponding synchronous.Three quadrature tangent plane Synchronous Processing make cross section, sagittal plane and coronalplane spatially go up correspondence each other with the time, show synchronously.
Ultrasonic superficial tissue of the present invention and organ volume scan tomograph imaging method can adopt the DICOM data format; Be fit to cooperate with different ultrasonic probes; The process of fault imaging is simpler, requirement that can the reduced graph work station, thus make Laminographic device realize miniaturization and facilitation.
Claims (9)
1. ultrasonic superficial tissue and organ volume scan tomograph imaging method is characterized in that, comprising:
By the continuous multiple frames two-dimensional ultrasonic image of ultrasonic probe collection superficial tissue and organ, a tangent plane of corresponding superficial tissue of each frame two-dimensional ultrasonic image and organ;
Said continuous multiple frames two-dimensional ultrasonic image is carried out pretreatment, obtain treated two dimensional image, i.e. volume data, said pretreatment comprises filtering, strengthens and cuts apart;
Carry out tangent plane picture based on treated two dimensional image and rebuild, obtain the multiple sections image of superficial tissue and organ, said reconstruction comprises that carrying out cross section, sagittal plane and coronal image according to treated two dimensional image rebuilds.
2. ultrasonic superficial tissue as claimed in claim 1 and organ volume scan tomograph imaging method is characterized in that said continuous multiple frames two-dimensional ultrasonic image comprises volume data information.
3. ultrasonic superficial tissue as claimed in claim 2 and organ volume scan tomograph imaging method is characterized in that, said several frame two-dimensional ultrasonic images are DICOM forms, and the frequency of collection is per second 30 frames.
4. ultrasonic superficial tissue as claimed in claim 1 and organ volume scan tomograph imaging method is characterized in that said pretreatment comprises:
Two-dimensional ultrasonic image is carried out filtering eliminate noise;
Obtain the data of tangent plane corresponding in each frame two-dimensional ultrasonic image;
Data according to said tangent plane are set up rectangular histogram;
Confirm segmentation threshold according to said rectangular histogram;
Strengthen the area-of-interest in the two-dimensional ultrasonic image, said enhancing is based on intensity profile;
Area-of-interest is cut apart.
5. ultrasonic superficial tissue as claimed in claim 4 and organ volume scan tomograph imaging method; It is characterized in that, comprise and use one of following method said area-of-interest is cut apart area-of-interest is cut apart: region growing, cut apart alternately entirely, Livewire and Fast marching.
6. ultrasonic superficial tissue as claimed in claim 5 and organ volume scan tomograph imaging method; It is characterized in that said iso-surface patch uses and cuts apart the corresponding Marching Cubes method drafting superficial tissue and cross section, sagittal plane and the coronal image of organ.
7. like said ultrasonic superficial tissue of claim 6 and organ volume scan tomograph imaging method, it is characterized in that said cross section, sagittal plane and coronal image are drawn and also comprised the synchronous and three quadrature tangent plane time synchronized of three quadrature tangent space.
8. like said ultrasonic superficial tissue of claim 7 and organ volume scan tomograph imaging method; It is characterized in that; Said three quadrature tangent space be synchronously on superficial tissue and any spatial relation of organ volume data corresponding each other synchronously, three quadrature tangent plane time synchronized are that tissue and organ volume data random time pass fasten mutual corresponding synchronous.
9. ultrasonic superficial tissue as claimed in claim 8 and organ volume scan tomograph imaging method; It is characterized in that cross section, sagittal plane and coronalplane showed all the time synchronously when said three quadrature tangent space made tissues observed and pathological changes with three quadrature tangent plane time synchronized synchronously.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103093503A (en) * | 2013-02-08 | 2013-05-08 | 河北大学 | Lung parenchyma area surface model establishment method based on computed tomography (CT) image |
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| CN110338840A (en) * | 2015-02-16 | 2019-10-18 | 深圳迈瑞生物医疗电子股份有限公司 | The display processing method and 3-D supersonic imaging method and system of three-dimensional imaging data |
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| CN109903660A (en) * | 2017-12-11 | 2019-06-18 | 重庆海扶医疗科技股份有限公司 | Image generating method and device, the Training Methodology of Medical Devices and training system |
| CN111281430A (en) * | 2018-12-06 | 2020-06-16 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic imaging method, device and readable storage medium |
| CN111281430B (en) * | 2018-12-06 | 2024-02-23 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic imaging method, device and readable storage medium |
| CN111340780A (en) * | 2020-02-26 | 2020-06-26 | 汕头市超声仪器研究所有限公司 | Focus detection method based on three-dimensional ultrasonic image |
| CN111340780B (en) * | 2020-02-26 | 2023-04-07 | 汕头市超声仪器研究所股份有限公司 | Focus detection method based on three-dimensional ultrasonic image |
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Application publication date: 20120926 |