WO2020238940A1 - 基于dicom文件的转换方法、装置及设备 - Google Patents
基于dicom文件的转换方法、装置及设备 Download PDFInfo
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/40—ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/116—Details of conversion of file system types or formats
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
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- the present disclosure relates to the technical field of file processing, and in particular to a method, device and equipment for converting DICOM files.
- DICOM Digital Imaging and Communications in Medicine
- DICOM files comply with the storage format of DICOM files and are used to archive DICOM file information generated by patient examinations. It is equivalent to a file-level database for storing patient information, patient study information, examination sequence information, and examination image information, but does not contain DICOM image pixel information.
- DICOMDIR standard DICOM file DICOMDIR standard DICOM file
- DICOMDIR content analysis use professional software analysis to see the content of the file, suitable for professional users, ordinary users to view DICOMDIR content, need to be familiar with using professional DICOMDIR analysis software.
- the embodiment of the present disclosure provides a method for converting DICOM files based on medical digital imaging and communication, which includes:
- DICOM tag of the DICOM file to be converted, where the DICOM tag includes: a tag description and a tag value;
- the DICOM file to be converted is converted into a JSON format file.
- the tag value includes: single value, multiple value, and null value.
- the data structure of the DICOM file to be converted has multiple levels, and each level of data has a DICOM tag.
- the data structure of the DICOM file to be converted has at least one of the following levels: Patient level, Study level, Series level, Image level.
- the obtaining the DICOM tag of the DICOM file to be converted includes:
- the converting the DICOM file to be converted into a JSON format file according to the DICOM tag includes:
- DICOM tags of each level data determine the key and value of the JSON information item corresponding to each level data
- the JSON format file is obtained according to the key and value of the JSON information item corresponding to each level data.
- the determining the key and value of the JSON information item corresponding to each level data in the JSON format file according to the DICOM tags of each level data includes:
- the label description corresponding to the DICOM label of one of the target-level data determine the key of the JSON information item corresponding to the target-level data; and, according to the label value corresponding to the DICOM label of the target-level data, determine the The value of the JSON information item corresponding to the target level data.
- the determining the key of the JSON information item corresponding to the target level data according to the label description corresponding to the DICOM tag of one of the target level data includes:
- the label description corresponding to the DICOM label of the target level data is used as the key of the JSON information item corresponding to the target level data.
- the determining the value of the JSON information item corresponding to the target level data according to the tag value corresponding to the DICOM tag of the target level data includes:
- tag value corresponding to the DICOM tag of the target level data is a single value, use the tag value of the DICOM tag as the value of the JSON information item corresponding to the target level data;
- the multiple tag values of the DICOM tag are converted into a JSON format array object, and the JSON format array object is taken as the corresponding to the target level data
- the null value NULL is used as the value of the JSON information item corresponding to the target level data converted into a JSON format file.
- it also includes:
- each level data is used as the target level data.
- Patient level data nests Study level data
- Study level data nests Series level data
- Series level data nests Image level data
- the previous level data includes at least one Group the next level data.
- the embodiment of the present disclosure also provides a device for converting DICOM files based on medical digital imaging and communication, which includes:
- An obtaining module used to obtain the DICOM tag of the DICOM file to be converted, the DICOM tag including: tag description and tag value;
- the conversion module is configured to convert the DICOM file to be converted into a JSON format file according to the DICOM tag.
- the acquisition module is specifically configured to:
- the conversion module includes:
- the information determining unit is used to determine the key and value of the JSON information item corresponding to each level data according to the DICOM tags of each level data;
- the file obtaining unit is configured to obtain the JSON format file according to the key and value of the JSON information item corresponding to each level of data.
- the information determining unit is specifically configured to:
- the label description corresponding to the DICOM label of one of the target-level data determine the key of the JSON information item corresponding to the target-level data; and, according to the label value corresponding to the DICOM label of the target-level data, determine the The value of the JSON information item corresponding to the target level data.
- the information determining unit determines the key of the JSON information item corresponding to the target level data according to the label description corresponding to the DICOM tag of one of the target level data, specifically :
- the label description corresponding to the DICOM label of the target level data is used as the key of the JSON information item corresponding to the target level data.
- the information determining unit determines the value of the JSON information item corresponding to the target level data according to the tag value corresponding to the DICOM tag of the target level data, which is specifically :
- tag value corresponding to the DICOM tag of the target level data is a single value, use the tag value of the DICOM tag as the value of the JSON information item corresponding to the target level data;
- the multiple tag values of the DICOM tag are converted into a JSON format array object, and the JSON format array object is taken as the corresponding to the target level data
- the null value NULL is used as the value of the JSON information item corresponding to the target level data converted into a JSON format file.
- a target level data determining unit configured to sequentially use each level data as the target level data according to the cyclic algorithm, wherein the Patient level data is nested with Study level data, the Study level data is nested with Series level data, and the Series level is The data nests Image level data, and the previous level data includes at least one set of next level data.
- the embodiment of the present disclosure also provides a device for converting DICOM files based on medical digital imaging and communication, including a memory, a processor, and a computer program stored on the memory and running on the processor; wherein, the processing The conversion method described in any of the preceding items is implemented when the program is executed by the processor.
- FIG. 1 is a schematic flowchart of one embodiment of the conversion method according to the embodiment of the disclosure
- FIG. 2 is a schematic flowchart of step S120 in FIG. 1;
- FIG. 3 is a schematic diagram of a specific implementation flow of the conversion method according to an embodiment of the present disclosure
- FIG. 4 is a schematic structural diagram of the conversion device according to an embodiment of the disclosure.
- the embodiments of the present disclosure provide a method for converting DICOM files, which can convert DICOM files into text files in JSON format. Using a similar TXT viewing tool, you can view the content of a text file in JSON format, which is simple and easy to operate, making the viewing of DICOM files universal and solving the problem of inconvenient viewing of the content of DICOM files.
- the method for converting a DICOM file includes:
- S110 Obtain a DICOM tag of a DICOM file to be converted; the DICOM tag includes: a tag description and a tag value, and the tag value includes: single value, multiple value, and null value.
- the DICOM file to be converted can be converted into a JSON format file, making the viewing of DICOM files more versatile and solving the inconvenience of viewing the content of DICOM files. problem.
- JSON JavaScript Object Notation, JS Object Notation
- ECMAScript the js specification developed by the European Computer Association
- JSON uses a text format completely independent of the programming language to store and Represents data.
- the concise and clear hierarchical structure makes JSON an ideal data exchange language, easy to read and write, and easy to parse and generate by machine, and can effectively improve network transmission efficiency.
- the viewing of the DICOM file can be made simpler and more convenient.
- step S110 the acquiring the DICOM tag of the DICOM file to be converted includes:
- step S120 the conversion of the DICOM file to be converted into a JSON format file according to the DICOM tag, as shown in FIG. 2, includes:
- S121 Determine the key and value of the JSON information item corresponding to each level data in the converted JSON format file according to the DICOM tags of each level data;
- S122 Obtain the JSON format file according to the key and value of the JSON information item corresponding to each level of data.
- each DICOM file carries a lot of information, which can be divided into four levels of data information.
- the content of the first level data corresponds to the patient information
- the content of the second level data corresponds to the study information
- the third level data corresponds to the sequence Series information
- the content of the four-level data corresponds to the image information.
- Patient-level information is the highest level.
- One Patient-level information can include multiple Study-level information.
- Each Study-level information can include multiple Series-level information.
- Each Series-level information can include multiple Image-level information.
- the Image-level information is The image information part of the DICOM file includes the storage path of the actual DICOM file on the disk, but does not include the image pixel information of the DICOM file.
- DICOM TAG consists of two hexadecimal numbers, namely (Group, Element). For example, (0010, 0010) can be used to represent the patient's name.
- Each Level of information is packaged into the most basic unit: Data Element.
- Each Data Element consists of four parts:
- DICOM TAG the identifier used to store this level of information
- VR data type, value representation
- value length data length used to store the data length describing the level of information
- Field data field used to store the data value describing the level of information.
- the data types of DICOM files stored in the VR part include: AE, AS, AT, CS, DA, DS, DT, FD, IS, LO, LT, PN, SH, SL, SQ, SS, ST, TM , UC, UI, UL, UN, UR, US, UT, etc., and the data type of the DICOM file stored in the VR part is SQ, it means that the value Field part stores one or more nested data values.
- the keys and values of the JSON information items corresponding to each level of data are determined according to the DICOM tags of each level of data.
- the JSON format file is obtained according to the key and value of the JSON information item corresponding to each level data.
- step S121 determining the key and value of the JSON information item corresponding to each level data according to the DICOM tags of each level data includes:
- the label description corresponding to the DICOM label of one of the target-level data determine the key of the JSON information item corresponding to the target-level data; and, according to the label value corresponding to the DICOM label of the target-level data, determine the The value of the JSON information item corresponding to the target level data.
- each Data Element is uniquely determined by the DICOM TAG in the Data Element and is distinguished from other Data Elements.
- each Data Element uniquely determined by DICOM TAG includes the corresponding label description, which is expressed in the form of a string, and is used to record the description information of the target level data.
- the key of the JSON information item in the format file can convert the description information corresponding to each level data into the key of the JSON information item in the JSON format file to record in the JSON format file.
- the data type of the key of the JSON information item is a string.
- the tag value corresponding to the DICOM tag of the target level data is the value stored in the value Field in the Data Element.
- the tag value corresponding to the data at each level can be converted into the JSON information item in the JSON format file.
- the value is to record the value stored in the value field corresponding to each level of data in a JSON format file.
- the corresponding data types of the keys of the converted JSON information items are different according to the tag value of the DICOM tag of the target level data.
- the corresponding relationship can be determined according to the following table 1.
- DICOM data type JSON data type AE String AS String AT String CS String DA String DS Number DT String FL Number FD Number IS Number LO String LT String PN String SH String SL Number SQ Array of JSON Objects SS Number ST String TM String UC String UI String UL Number UN String UR String US Number UT String
- the determining the key of the JSON information item corresponding to the target level data according to the label description corresponding to the DICOM tag of one of the target level data includes:
- the label description corresponding to the DICOM label of the target level data is used as the key of the JSON information item corresponding to the target level data.
- the determining the value of the JSON information item corresponding to the target level data according to the label value corresponding to the DICOM label of the target level data includes:
- tag value corresponding to the DICOM tag of the target level data is a single value, use the tag value of the DICOM tag as the value of the JSON information item corresponding to the target level data;
- the multiple tag values of the DICOM tag are converted into a JSON format array object, and the JSON format array object is taken as the corresponding to the target level data
- the null value NULL is used as the value of the JSON information item corresponding to the target level data.
- the key and value of the JSON information item corresponding to each level data can be determined.
- the converted JSON format file can be obtained according to the key and value of the SON information item corresponding to the first level data.
- step S121 determining the key and value of the JSON information item corresponding to each level data according to the DICOM tag of each level data includes:
- each level of data is used as target level data in turn according to the cyclic algorithm.
- Patient level data nests Study level data, Study level data nests Series level data, and Series level data
- the data nests Image level data, and the previous level data includes at least one set of next level data.
- DICOM tags of each target level data determine the key and value of the JSON information item corresponding to each target level data:
- Patient-level data includes multiple Study-level objects, and multiple Study-level objects form an array set, and each Study-level object can be used as the target item Study-level object;
- the study-level object of the target item includes multiple Series-level objects, and multiple Series-level objects form an array set, and each Series-level object can be used as the target-item Series-level object;
- the target item Series-level objects include multiple Image-level objects.
- the key and value of the JSON information items corresponding to the target level data are determined in sequence according to the above-mentioned sequence as the target level data, so that the process of file conversion is executed in order to avoid information omission.
- FIG. 3 the specific implementation process of the method for converting the DICOM file in the embodiment of the present disclosure can be referred to as shown in FIG. 3, including the steps:
- S303 Traverse each DICOM TAG of the Patient-level data, and determine the key and value of the JSON information item corresponding to the Patient-level data according to each DICOM tag of the Patient-level data;
- S305 Select a target item Study-level object from an array set of Study-level objects; optionally, the target item Study-level object is selected from the first Study-level object;
- S306 Traverse each DICOM TAG included in the Study-level object of the target item, and determine the key and value of the JSON information item corresponding to the Study-level object of the target item according to each DICOM tag of the Study-level object of the target item;
- S308 Select the target item Series-level object from the array set of Series-level objects contained in the target item Study-level object; optionally, the target item Series-level object is selected from the first Series-level object;
- S314 Obtain a JSON format file according to the key and value of the JSON information item corresponding to each level of data, and protect the JSON format file;
- the embodiment of the present disclosure also provides a device for converting DICOM files based on medical digital imaging and communication, as shown in FIG. 4, including:
- the obtaining module 410 is configured to obtain a DICOM tag of the DICOM file to be converted, where the DICOM tag includes: a tag description and a tag value;
- the conversion module 420 is configured to convert the DICOM file to be converted into a JSON format file according to the DICOM tag.
- the DICOM file to be converted can be converted into a JSON format file according to the DICOM tag of the DICOM file to be converted, making the viewing of DICOM files more versatile and solving the inconvenience of viewing the content of DICOM files. problem.
- the obtaining module 410 is specifically configured to:
- the conversion module 420 includes:
- the information determining unit 421 is configured to determine the key and value of the JSON information item corresponding to each level data according to the DICOM tags of each level data;
- the file obtaining unit 422 is configured to obtain the JSON format file according to the key and value of the JSON information item corresponding to each level of data.
- the information determining unit 421 is specifically configured to:
- the label description corresponding to the DICOM label of one of the target-level data determine the key of the JSON information item corresponding to the target-level data; and, according to the label value corresponding to the DICOM label of the target-level data, determine the The value of the JSON information item corresponding to the target level data.
- the information determining unit 421 determines the key of the JSON information item corresponding to the target level data according to the label description corresponding to the DICOM tag of one of the target level data, specifically for:
- the label description corresponding to the DICOM label of the target level data is used as the key of the JSON information item corresponding to the target level data.
- the information determining unit 421 determines the value of the JSON information item corresponding to the target level data according to the tag value corresponding to the DICOM tag of the target level data, specifically for:
- tag value corresponding to the DICOM tag of the target level data is a single value, use the tag value of the DICOM tag as the value of the JSON information item corresponding to the target level data;
- the multiple tag values of the DICOM tag are converted into a JSON format array object, and the JSON format array object is taken as the corresponding to the target level data
- the null value NULL is used as the value of the JSON information item corresponding to the target level data.
- the conversion device further includes: a target level data determining unit, configured to sequentially use each level data as the target level data according to a cyclic algorithm, wherein the Patient level data is nested with Study level data, and the Study level data is nested Series-level data, Series-level data nests Image-level data, and the previous level data includes at least one set of next level data
- the embodiment of the present disclosure also provides a device for converting DICOM files based on medical digital imaging and communication, including a memory, a processor, and a computer program stored on the memory and running on the processor; wherein, the processing The conversion method described in any of the preceding items is implemented when the program is executed by the processor.
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Abstract
Description
DICOM数据类型 | JSON数据类型 |
AE | 字符串String |
AS | String |
AT | String |
CS | String |
DA | String |
DS | 数值Number |
DT | String |
FL | Number |
FD | Number |
IS | Number |
LO | String |
LT | String |
PN | String |
SH | String |
SL | Number |
SQ | JSON Objects的数组 |
SS | Number |
ST | String |
TM | String |
UC | String |
UI | String |
UL | Number |
UN | String |
UR | String |
US | Number |
UT | String |
Claims (16)
- 一种基于医学数字成像和通信DICOM文件的转换方法,包括:获取待转换DICOM文件的DICOM标签,所述DICOM标签包括:标签描述和标签值;根据所述DICOM标签,将所述待转换DICOM文件转换为JSON格式文件。
- 根据权利要求1所述的转换方法,其中,所述标签值包括:单值、多值、空值。
- 根据权利要求1所述的转换方法,其中,所述待转换DICOM文件的数据结构具有多个级别,各个级别的数据均具有DICOM标签。
- 根据权利要求3所述的转换方法,其中,所述待转换DICOM文件的数据结构具有以下至少一个级别:Patient级、Study级、Series级、Image级。
- 根据权利要求3所述的转换方法,其中,所述获取待转换DICOM文件的DICOM标签,包括:获取所述待转换DICOM文件中各个级别数据的DICOM标签;所述根据所述DICOM标签,将所述待转换DICOM文件转换为JSON格式文件,包括:根据各个级别数据的DICOM标签,确定与各个级别数据相对应的JSON信息项的键和值;根据与各个级别数据相对应的JSON信息项的键和值,获取所述JSON格式文件。
- 根据权利要求5所述的转换方法,其中,所述根据各个级别数据的DICOM标签,确定与各个级别数据相对应的JSON信息项的键和值,包括:根据其中一目标级别数据的DICOM标签相对应的标签描述,确定与所述目标级别数据相对应的JSON信息项的键;以及根据所述目标级别数据的DICOM标签相对应的标签值,确定与所述目标级别数据相对应的JSON信息项的值。
- 根据权利要求6所述的转换方法,其中,所述根据其中一目标级别数 据的DICOM标签相对应的标签描述,确定与所述目标级别数据相对应的JSON信息项的键,包括:将所述目标级别数据的DICOM标签相对应的标签描述,作为与所述目标级别数据相对应的JSON信息项的键。
- 根据权利要求6所述的转换方法,其中,所述根据所述目标级别数据的DICOM标签相对应的标签值,确定与所述目标级别数据相对应的JSON信息项的值,包括:所述目标级别数据的DICOM标签相对应的标签值为单值时,将DICOM标签的标签值作为与所述目标级别数据相对应的JSON信息项的值;所述目标级别数据的DICOM标签相对应的标签值为多值时,将DICOM标签的多个标签值转换为JSON格式数组对象,将所述JSON格式数组对象作为与所述目标级别数据相对应的JSON信息项的值;所述目标级别数据的DICOM标签相对应的标签值为空值时,将空值NULL作为与所述目标级别数据相对应的JSON信息项的值。
- 根据权利要求6所述的转换方法,还包括:按照循环算法依次将各个级别数据作为目标级别数据,其中,Patient级数据嵌套Study级数据,Study级数据嵌套Series级数据,Series级数据嵌套Image级数据,且上一级别数据包括至少一组下一级别数据。
- 一种基于医学数字成像和通信DICOM文件的转换装置,其中,包括:获取模块,用于获取待转换DICOM文件的DICOM标签,所述DICOM标签包括:标签描述和标签值;转换模块,用于根据所述DICOM标签,将所述待转换DICOM文件转换为JSON格式文件。
- 根据权利要求10所述的转换装置,其中,所述获取模块具体用于:获取所述待转换DICOM文件中各个级别数据的DICOM标签;所述转换模块包括:信息确定单元,用于根据各个级别数据的DICOM标签,确定与各个级别数据相对应的JSON信息项的键和值;文件获取单元,用于根据与各个级别数据相对应的JSON信息项的键和 值,获取所述JSON格式文件。
- 根据权利要求8所述的转换装置,其中,所述信息确定单元具体用于:根据其中一目标级别数据的DICOM标签相对应的标签描述,确定与所述目标级别数据相对应的JSON信息项的键;以及根据所述目标级别数据的DICOM标签相对应的标签值,确定与所述目标级别数据相对应的JSON信息项的值。
- 根据权利要求12所述的转换装置,其中,所述信息确定单元根据其中一目标级别数据的DICOM标签相对应的标签描述,确定与所述目标级别数据相对应的JSON信息项的键,具体为:将所述目标级别数据的DICOM标签相对应的标签描述,作为与所述目标级别数据相对应的JSON信息项的键。
- 根据权利要求12所述的转换装置,其中,所述信息确定单元根据所述目标级别数据的DICOM标签相对应的标签值,确定转换为JSON格式文件与所述目标级别数据相对应的JSON信息项的值,具体为:所述目标级别数据的DICOM标签相对应的标签值为单值时,将DICOM标签的标签值作为与所述目标级别数据相对应的JSON信息项的值;所述目标级别数据的DICOM标签相对应的标签值为多值时,将DICOM标签的多个标签值转换为JSON格式数组对象,将所述JSON格式数组对象作为与所述目标级别数据相对应的JSON信息项的值;所述目标级别数据的DICOM标签相对应的标签值为空值时,将空值NULL作为与所述目标级别数据相对应的JSON信息项的值。
- 根据权利要求12所述的转换装置,还包括:目标级别数据确定单元,用于按照循环算法依次将各个级别数据作为目标级别数据,其中,Patient级数据嵌套Study级数据,Study级数据嵌套Series级数据,Series级数据嵌套Image级数据,且上一级别数据包括至少一组下一级别数据。
- 一种基于医学数字成像和通信DICOM文件的转换设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;其中, 所述处理器执行所述程序时实现如权利要求1-9任一项所述的转换方法。
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