TW201445348A - Real-time computer tomography image transmission and display method and system - Google Patents

Abstract

Provided are a real-time computer tomography image transmission and display method and system. The major feature of the method is to employ the transfer-on-demand (TOD) in conjunction with a progressive transmission method for processing the projection data of slice images constituting the computer tomography, wherein a remote request is generated according to the user's need and click-on; after that, a remote database transmits part of the projection data via a mobile network, such as 3G, Wi-Fi, etc., to the remote portable smart electronic device, such as a mobile phone, a tablet computer, etc., so that the rebuilding program installed in the portable smart electronic device may use a 3D image rebuilding algorithm to rebuild the projection data obtained as the initial slice images for preliminary recognition by doctors and display the same on the portable smart electronic device. Further, when the rebuild program receives a request for presentation clearer than the initial slice images of a designated slice layer, the progressive transmission method is employed two or more times of to transmit, in a batch-wise manner, more parts of the projection data of the slice images to the portable smart electronic device, such that the rebuilding program may use more projection data to rebuild the initial slice images as advanced slice images with higher resolution, more advanced slice images with even higher resolution or high level slice images with highest resolution to allow clear and accurate interpretation by doctors.

Description

Instant computer tomographic image transmission and display method and system

The present invention relates to the field of medical image processing, and more particularly, to a method for shortening data transmission time and transmitting a projection image of a computed tomography image to a remote portable intelligent electronic device by using a mobile internet. The reconstruction software of the portable intelligent electronic device is instantly reconstructed into a facet image for immediate interpretation by a physician.

First, a simple description of the traditional computer tomography data processing method, Computed Tomography (CT) to capture the scanned data, directly transferred to a dedicated computer connected to the CT, reconstructed as a sliced image in a dedicated computer, for The radiologist watched the results.

A slice image is constructed by processing a predetermined number (ex. 180 or 360) of projection data by a 3D image reconstruction algorithm (ex. back projection reconstruction algorithm). As shown in the first figure, the formation of a projection data is, in a nutshell, a series of X-rays 2 emitted by the X-ray source 1 of the CT, which are received by the opposite detector 3 and then received by the opposite detector 3. Group radiodensity measurement data, if the X beam and the detector rotate 180 degrees or 360 around the human body, each degree can get a set of radiological density measurement data (also known as projection data), then pass the X beam The cross-section of the human body can obtain 180 or 360 projections. The predetermined number of projections are used in a dedicated computer and processed into a slice by a 3D image reconstruction algorithm.

a test area (such as the entire abdominal cavity of the human body, from below the thoracic vertebra to above the navel) This area usually consists of hundreds of layers of human cross-sections, in other words, hundreds of ex. 400 sheets of slice. These hundreds of cut images are finally stored in the Picture Archiving and Communication System (PACS) in the format of DICOM (Digital Imaging and Communications in Medicine). The physician's computer or portable electronic device accesses the PACS through the hospital's internal network (intranet) to view each slice.

The size of a patient's computed tomography image file varies according to the location of the image. A slice image is available from 800KB to 50MB. It can be inferred that the amount of data in the DICOM file including hundreds of face images is very large. If you want to transfer a DICOM file containing 400 face images to a remote portable smart device via the Internet, it takes about a few minutes to a dozen minutes to congest and connect now. Unstable, disconnected, and other issues are endless, and the remote portable electronic device cannot successfully acquire computerized tomographic data. In the case of emergency medicine, it is very unfavorable. In some emergency medical situations, if the computerized tomographic image is needed to determine the next treatment direction, the situation will become extremely complicated when the doctor is not in the hospital.

However, even if the doctor is in the hospital, the PACS can be accessed through the intranet and computer to obtain computed tomography images, but it cannot be obtained immediately after the patient has finished CT. Because the CT captures the projection data, the CT-specific computer reconstructs all the projections of each layer into a slice image (a slice), and hundreds of reconstructions are required to complete a human-tested area. All the cut images (hundreds of slices), then convert all the slices into DICOM files, then transfer the DICOM files through the in-hospital network or transfer them to the PACS storage using portable media until they are available to the physician. In-hospital connection or direct viewing through CD-ROM archives, the fastest time is more than an hour.

The above-mentioned traditional computerized tomographic image processing and transmission method is suitable for data archiving, backup in the hospital, and non-emergency non-instant state use in the hospital for reading and browsing in the future. However, it is not possible to provide the doctors in the hospital for evaluation immediately after the patient has finished the CT examination. It is also not possible to provide instant access to the remote computer or portable electronic device outside the hospital. In order to solve this problem, the present invention is mainly important in the case of emergency medical treatment, the computerized tomography image can be immediately presented on the computer or the portable electronic device in the hospital, and the portable electronic device can be instantly located at the remote end. Presented on the device for immediate reading, browsing, evaluation, and interpretation by a specialist. The present invention relates to a method of transmitting and displaying computed tomography images. The most important feature of this method is that the projection data of the slice that constitutes the computer slice is transmitted by the server in a progressive transmission method through the mobile internet (3G, Wi-Fi...). A portable electronic device (such as a mobile phone or a tablet computer) reconstructs a part of the obtained projection data into a resolution by a 3D image reconstruction algorithm through a reconstruction software installed in the portable electronic device. The lower-level cut-off image that is lower but can be initially identified by the physician is displayed on the portable electronic device. Furthermore, when the reconstruction software obtains a requirement to more clearly present the initial slice image of the specified slice layer, more portions of the slice image are imaged by two, three or more progressive transmission methods. The projection data is transmitted to the portable intelligent electronic device in batches, and the reconstruction software reconstructs the first-order slice image into a higher-resolution advanced slice image by using more projection data obtained, and the resolution is more High re-entry images, or high-resolution high-resolution images for the doctor to make clearer and clearer interpretations.

The method of the invention can shorten the data transmission time and the reconstruction time, so that the remote computer or the portable intelligent electronic device in the hospital or outside the hospital can instantly obtain the projection data and instantly reconstruct it into a slice image.

The difference between the present invention and the conventional processing of CT projection data and sliced image is that the conventional projection data is stored in a CT dedicated computer, and the CT dedicated computer focuses all the projection data. As a series of high-level cut images, because of the processing and reconstruction of all projection data, the processing time is quite long, and the final DICOM file is so large that it is difficult to transmit through the mobile communication network. The invention utilizes a progressive transmission method, and divides the projection data into several parts and batches and directly transmits them to the remote portable intelligent electronic device through the mobile communication network, and uses the reconstruction software in the portable intelligent electronic device to make an instant. The fractional reconstruction, and the results of the partial reconstruction are displayed in real time, and the physician can immediately interpret the requirements for the advanced display of the specific slice layer of interest, and improve the resolution of the specific slice layer. The invention does not need to transmit all the projection data to the portable intelligent electronic device, and the reconstruction software of the portable intelligent electronic device does not need to reconstruct all the high-order slice images, and the user interface is selected according to the user's requirements, and the software is reconstructed according to the user's requirements. The received command can be used to re-transfer and reconstruct the projection data of a specific slice layer. Therefore, compared with the conventional method, the present invention has the advantages of shortened processing time, reduced data volume, reduced transmission load, fast transmission speed, instant transmission, instant reconstruction, instant display, and instant interpretation.

20‧‧‧ Portable electronic devices

80‧‧‧Operator interface

82‧‧‧Rolling axis

83‧‧‧Cue axis

85‧‧‧Slice image

The first picture is a schematic diagram of the formation of projection data of a computer fault.

The second figure is a schematic diagram of a cross-sectional image reconstructed with different numbers of projection data in the present invention.

The third figure is a schematic diagram of the operation interface and the cut surface image of the reconstructed software of the invention in a portable intelligent electronic device.

The instant computerized tomographic image transmission and display method of the present invention uses projection data captured from a CT or other similar device, and the projection data is obtained as shown in the prior art and the first figure, and will not be further described herein.

The method of the invention mainly comprises the following steps: In the first step, the projection data captured by the CT or other similar device is attached to a server by a code number in a sequential order. The number includes at least a preamble followed by a sequence symbol following the preamble, the preamble being used to represent a slice, the sequence symbol representing the order of the projections. For example, "A-001-001", where "A-001" is the preamble and the second "001" is the sequence symbol. In more detail, the symbol A represents the patient's identity, the first "001" represents the slice number, and the number is added in the order of the slice layer. The second "001" represents the projection number, according to the projection data. The number of acquisitions is cumulative. For example, "A-001-001" represents the first projection of the first slice of patient A. "A-001-360" represents the 360th projection of the first slice of patient A. "A-400-001" represents the first projection of the 400th slice of Patient A. "A-400-360" represents the 360th projection of the 400th slice of Patient A.

In step two, the server transmits the first part of the projection data of each surface layer to a portable intelligent electronic device connected thereto through the mobile internet. A reconstruction software has been installed in the portable intelligent electronic device, and the reconstruction software reconstructs the received projection data into a single slice image by using a known three-dimensional image reconstruction algorithm (ex. back projection reconstruction algorithm). The number of the first part of the projection data is 1/36, or 1/18, or 1/12 of the total projection data of all the surface layers, that is, if the total number of projection materials of all the surface layers is 360, the first part of the projection data can be 10, or 20 or 30 projection materials. The selected projection data is numbered 36, or 18 or 12. For example, assuming that the total number of projection data of the first slice layer is 360, and the first part of the projection data is 1/36 of the total projection data, the number of the selected projection data of the first portion is respectively "A- 001-001, A-001-037, A-001-073, A-001-109, A-001-145, A-001-181, A-001- 217", "A-001-253", "A-001-289", "A-001-325". The first part of the projection data of other cut layers is analogous give away. The reconstruction software in the portable intelligent electronic device utilizes the first part of the projection data of each of the received surface layers to reconstruct an initial stage image for each surface layer that has a low resolution but can be initially identified by the physician. Each of the preliminary slice images is sequentially displayed on the display of the portable electronic device. Physicians can view the first-order section images of each surface layer through the page turning operation or the scrolling operation of the portable intelligent electronic device.

Step 3: When the reconstruction software obtains a "requirement" to present a clearer image of the initial slice of a specified slice layer, the reconstruction software immediately sends a command to the server regarding the request. The above-mentioned "requirements" can be established by various known methods. For example, the reconstruction software can be used to calculate the stoppage time of a certain initial slice image for more than a predetermined time (for example, 3 to 5 seconds), and the request is established. The rebuild software issues the command to the server. Alternatively, the reconstruction software receives a certain initial slice image and is selected by the touch screen of the portable smart electronic device. Alternatively, the ergonomic algorithm (ex. context-aware algorithm) can be used to detect or determine the behavior of the operator of the portable electronic device through the software, and the length of time suitable for the user is established.

Step 4: After obtaining the command, the server transmits the second portion of the projection data of the designated slice layer to the reconstruction software of the portable intelligent electronic device; the number of the second portion of the projection data is smaller than the first portion The number of projection materials is large. For example, if the number of the first part of the projection data is 1/36 (10) of the total projection data, then the number of the second part of the projection data is 1/18 (20) of the total projection data. The selected projection data is separated by a number of 18. For example, following the example of step 2, it is assumed that the first-order slice image of the first slice layer is clicked, and the projection data numbers selected for transmission in the second portion are "A-001-001" and "A-001" respectively. -019""A-001-037", "A-001-055", "A-001-073", "A-001-091", "A-001-109", "A-001-127" "A-001-145", "A-001-163", "A-001-181", "A-001-199", "A-001-217", "A-001-235", " A-001-253", "A-001-271", "A-001-289", "A-001-307", "A-001-325", "A-001-343"; in order to shorten the transmission time and reduce the transmission amount, the projection data whose number is overlapped with the first part of the projection data may not be transmitted.

Step 5: The reconstruction software of the portable intelligent electronic device receives the second partial projection data, merges the second partial projection data with the first partial projection data, and reconstructs the preliminary slice image of the specified slice layer into an analytical image. Higher level cut image.

Step 6: If the reconstruction software is obtained, the image of the advanced cut surface of a certain cut surface layer is more Upon clear presentation of the request, the rebuild software immediately sends a command to the server regarding the request. The manner in which the requirements are established can be analogized by the method of step 3.

Step 7: After obtaining the command, the server transmits the third portion of the projection data of the designated slice layer to the reconstruction software of the portable intelligent electronic device; the third portion of the projection data is smaller than the second portion The number of projection materials is large. For example, the number of the first part of the projection data is 1/36 (10) of the total projection data, and the number of the second part of the projection data is 1/18 (20) of the total projection data, the third part The number of projection data is 1/12 (30) of all projection data. The third portion of the projection data selected for transmission is numbered 12 apart. Following the example of Step 4, the projection data numbers selected for transmission in the third part are "A-001-013", "A-001-25", "A-001-037" and "A-001-049" respectively. "A-001-061", "A-001-073", "A-001-085", "A-001-097", "A-001-109", "A-001-121", "A" -001-133", "A-001-145", "A-001-157", "A-001-169", "A-001-181", "A-001-193", "A-001" -205", "A-001-217", "A-001-229", "A-001-241", "A-001-253", "A-001-265", "A-001-277" "A-001-289", "A-001-301", "A-001-313", "A-001-325", "A-001-337", "A-001-349", "A-001-361". In order to shorten the transmission time and reduce the transmission amount, the projection data whose number is overlapped with the first part and the second part of the projection data may not be transmitted.

Step 8: The reconstruction software of the portable intelligent electronic device receives the third part of the cast For the video data, the third part of the projection data is combined with the first part and the second part of the projection data, and the advanced slice image of the specified slice layer is reconstructed into a higher resolution re-cut image for the physician to do Clearer and clearer interpretation.

According to the principles of steps 3 to 8, the fourth part, the fifth part...more part of the projection data transmission, merging and reconstruction can be performed. The more the projection data reconstructed, the higher the resolution of the slice image. When all the projection data of the specified slice layer is transmitted in stages and reconstructed, the highest-resolution slice image with the highest resolution can be obtained.

The above steps 2, 4 and 7 constitute the progressive data transmission method of the present invention, and the projection data required to form a slice image is transmitted and reconstructed in batches. According to the display resolution and human visual characteristics of the general portable electronic device, the slice image reconstructed from 30 projection data is sufficient for the doctor to make detailed judgment and evaluation, and the cut image reconstructed by 90 projection data is The resolution displayed by the portable electronic device has been approximated by the reconstructed slice image of 180 or 360 projection data. For the cut image of the reconstruction of the projection data, please refer to the second figure.

The system architecture for performing the above method of the present invention comprises: a server and at least one portable smart device, wherein the portable smart device installs a reconstruction software, and the portable intelligent device enables the reconstruction software through the mobile internet The server is connected.

The server receives all the projection data generated by the CT, and attaches a number to each of the projection data in the order of the capture (such as steps 1 and 2 above), and stores the projection data together with the number thereof in a database. in. The server sequentially transmits the first part of the projection data of each surface layer to the portable intelligent electronic device from the database according to the command of the reconstruction software, and the reconstruction software uses the 3D image reconstruction algorithm to immediately make the first Part of the projection data is reconstructed into an initial slice image of each surface layer and instantly displayed on the display of the portable electronic device. For the physician to view the initial cut image of each face layer.

When the initial aspect image provided by the reconstruction software is browsed, the reconstruction software can obtain an advanced requirement from the portable intelligent electronic device, and the advanced requirement is to make the initial slice image of the specified slice layer clearer. .

After the rebuild software obtains the advanced requirement, it immediately sends a command to the server regarding the advanced request. The server receives the command of the advanced request, and instantly transmits the second part of the projection data of the specified slice layer to the portable intelligent electronic device from the database. The reconstruction software combines the second portion of the projection data of the specified slice layer with the first portion of the projection data and reconstructs it into an advanced slice image, which is immediately displayed on the display of the portable intelligent electronic device for interpretation by the physician.

The reconstruction software can obtain re-advanced requirements from the portable smart electronic device, which is required to make the advanced cut image of the designated cut layer clearer.

After the re-rendering software obtains the re-advancement request, it immediately sends a command to the server about the re-advancement. The server receives the command of the re-advanced request, and instantly transmits the third part of the projection data of the specified slice layer to the portable intelligent electronic device from the database. The reconstruction software combines the projection data of the third portion of the specified slice layer with the first portion of the projection data and the second portion of the projection data, and reconstructs the image into a higher resolution and clearer image of the progressive slice, and displays it instantly. The display of the portable electronic device is for the physician to interpret.

The above-mentioned advanced requirements or re-advanced requirements are not limited by the number of executions. The reconstruction software can send advanced or re-advance commands to the server multiple times, and the server can follow the principles of steps 2, 4 and 7 above. Perform the fourth part, the fifth part... more part of the projection data transmission until all the projection data of the specified slice layer is transmitted in stages and all of the reconstruction software are merged and reconstructed into high-order slice images.

The reconstruction software for performing the above method of the present invention uses a network communication module of the portable intelligent electronic device to connect with the server, and displays the operation interface and the image generated by the display of the portable intelligent electronic device. The reconstruction software includes the following program module: a projection data receiving module, receiving the first part of the projection data, the second part of the projection data, the third part of the projection data, or more from the server Projection data.

A three-dimensional image reconstruction module reconstructs the first portion of the projection data obtained by the projection data receiving module into a first-order slice image of each surface layer by using a three-dimensional image reconstruction algorithm (ex. back projection reconstruction algorithm); The obtained second partial projection data, the third partial projection data, or more partial projection data are combined to reconstruct an advanced cut surface image, a further advanced cut surface image, and a high-order cut surface image of the specified cut surface layer.

a display interface, displaying the first-order slice image, the advanced slice image, the further aspect image, and the high-order slice image on the display of the portable intelligent electronic device; and an operation interface displayed on the display of the portable smart device; The function of commanding, controlling, commanding, and managing the display interface, performing browsing, zooming, zooming, and selecting of the cut image; and a triggering module, through the operation interface, receiving the image of the initial slice of the specified slice layer into The requirement of a stepped image, or the requirement to reconstruct an advanced aspect image of the specified slice layer into a further aspect image; convert the request into a command to send to the server.

As shown in the third figure, the reconstruction software is described in the operation interface 80 and the cut image 85 of a portable electronic device 20. The third figure is merely illustrative of a possible example, but is not intended to limit the invention. The operation interface 80 has an image display area for displaying the first-order, advanced, re-advanced, high-order and other aspect images 85. The operation interface 80 can switch the image display area according to a page turning instruction provided by the smart electronic device, a screen scrolling instruction, or other various forms of browsing instructions. The cut image. As shown in the figure, a scrolling shaft 82 is provided in the operating interface 80. The scrolling shaft 82 is selected by a touch point or pulled by a continuous touch, and can also convert a cut image of the image display area.

In addition, the operation interface 80 has a cueing axis 83. The cue axis 83 indicates the slice image as a preliminary, advanced, re-advanced, or high-order slice image by the axis length, color, and symbol.

The operation interface 80 obtains the method described in the foregoing step 3. The method includes, but is not limited to, calculating, by using the reconstruction software, a certain initial slice image stoppage display time exceeds a predetermined time (for example, 3 to 5 seconds). Alternatively, the reconstruction software receives a certain initial slice image and is clicked through the touch screen of the portable smart device. Alternatively, the AI algorithm (ex. Context-aware algorithm) can be used to detect or determine the usage behavior and usage behavior of the operator of the portable electronic device through the software.

Claims (7)

An instant computerized tomographic image transmission and display method using projection data obtained from a computed tomography scanner (CT) or other similar device, the projection data being reconstructed into a slice image by a 3D image reconstruction algorithm (slice); the instant computerized tomographic image transmission and display method comprises the following steps: Step 1: Projection data captured by a computed tomography scanner (CT) or the like is searched through a coding program. The sequence is attached to a server and stored in a server; in step 2, the server transmits the first part of the projection data of each surface layer to a connected intelligent electronic device through the mobile internet; the portable wisdom A reconstruction software has been installed in the electronic device, and the reconstruction software reconstructs a preliminary slice image for each surface layer by using the first portion of the projection data of each of the surface layers received, and each preliminary slice image is sequentially Displayed on the display of the portable electronic device; the number of the first part of the projection data is separated by a predetermined number; step three, when When the software obtains the requirement to present the first-order slice image of a specified slice layer more clearly, the reconstruction software immediately sends a command to the server for the request; in step 4, after the server obtains the command of step three, Transmitting the second portion of the projection data of the designated slice layer to the reconstruction software of the portable smart device; the number of the second portion of the projection data is greater than the number of the first portion of the projection data, and the second portion The projection data is different from the first part of the projection data; the number of the second part of the projection data is separated by a predetermined number, and the number of the second part of the projection data is smaller than the number of the first part of the projection data; Step 5: The reconstruction software receives the second part of the projection data, merges the second part of the projection data with the first part of the projection data, and reconstructs the initial slice image of the specified slice layer into a higher resolution advanced step. The image of the cut surface is immediately displayed on the display of the portable intelligent electronic device; in step 6, when the reconstruction software obtains the requirement that the advanced cut surface image of a specified cut surface layer is more clearly presented, the reconstruction software immediately goes to the servo The device sends the command of the request; in step 7, after the server obtains the command of step 6, the third part of the projection data of the specified slice layer of step 6 is transmitted to the reconstruction software of the portable intelligent electronic device; The number of projections in the third part is larger than that in the second part. The third part of the projection data is different from the first part of the projection data and the second part of the projection data. The third part of the projection data is numbered. Between a predetermined number, the number of the third portion of the projection data is less than the number of the second portion of the projection data; in step 8, the reconstruction software receives the number The three-part projection data combines the third part of the projection data with the first part and the second part of the projection data, and reconstructs the advanced cut surface image of the specified cut surface layer of step 6 into a higher resolution and more advanced cut surface. The image is displayed on the display of the portable electronic device; repeat steps 3 to 8 to perform more partial projection data transmission, merging and reconstruction. The method for transmitting and displaying an instant computerized tomographic image according to claim 1, wherein the number of the step 1 includes at least a preamble and a sequence symbol following the preamble, the preamble is used to represent the slice Slice, the sequence symbol is used to express the vote The order of the projections. For example, the instant computerized tomographic image transmission and display method described in claim 1 wherein the first portion of the projection data in step 2 is 1/36 of the total projection data of all the surface layers, and the fourth step The number of two parts of projection data is 1/18 of the total number of projection data of the slice layer, and the number of projection data of the third part of step 7 is 1/12 of the total projection data of the slice layer. For example, the instant computerized tomographic image transmission and display method described in claim 3, wherein the number of the first portion of the projection data is 36, and the number of the second portion of the projection data is 18, the third portion The number of projection data is 12. The method for transmitting and displaying an instant computerized tomographic image as described in claim 4, wherein the projection data of the second portion of the projection data and the number of the first portion of the projection data are not transmitted; the third portion of the projection The projection data of the number of the data and the number of the second part of the projection data are not transmitted. An instant computerized tomographic image transmission and display system comprising: a server and at least one portable intelligent electronic device, wherein the portable intelligent electronic device is provided with a reconstruction software, and the portable intelligent electronic device enables the reconstruction software through a mobile internet Connected to the server; the server performs: receiving steps of all projection data generated by a computed tomography scanner (CT) or other similar device; and attaching all the projection data in the order of the slice layer and the capture sequence a step of numbering; The step of storing the projection data together with the serial number thereof in a database; and transferring the projection data into a plurality of parts in batches to the portable intelligent electronic device according to the requirement of the reconstruction software; Reconstruction software execution: receiving the first portion of the projection data transmitted by the server by the progressive data transmission method, and reconstructing the first-order slice image of each surface layer; the initial slice image of each of the surface layers a step of sequentially displaying the display of the portable electronic device; receiving a request for designating an initial slice image to reconstruct the advanced slice image, and transmitting the request to the server; receiving the server The second part of the projection data transmitted by the progressive data transmission method, and reconstructing the designated initial slice image into an advanced slice image; receiving an advanced slice image specifying a certain surface layer to reconstruct it into a re-entry The step of the slice image and the step of sending the request to the server; displaying the advanced slice image in real time on the portable electronic device The step of receiving the third portion of the projection data transmitted by the server by the progressive data transmission method and reconstructing the specified advanced slice image into the reconstructed slice image; and the stepped slice image The step of displaying the display on the portable electronic device in real time. The instant computerized tomographic image transmission and display system as described in claim 6 of the patent application scope, The reconstruction software includes the following program module: a projection data receiving module that receives the first portion of the projection data, the second portion of the projection data, and the third portion of the projection data transmitted from the server, or a plurality of projection data; a 3D image reconstruction module reconstructs the obtained first part of the projection data into an initial stage image of each surface layer by using a 3D image remodeling algorithm; The projection data, the third part of the projection data, or more part of the projection data are combined to reconstruct an advanced slice image of the specified slice layer, a further advanced slice image, a high-order slice image; a display interface, the first slice image The advanced cut image, the advanced cut image, and the high-level cut image are displayed on the display of the portable electronic device; an operation interface is displayed on the display of the portable electronic device for command, control, command, and management The display interface performs functions such as browsing, zooming in, zooming out, and selecting of the cut image; and a triggering module, through which the receiving interface receives the designated cut layer Image reconstruction section for advanced requirements of section images, or designated image reconstruction section is advanced further advanced requirements of the cut slice image layers; the trigger module and send the request to the server.