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DICOM 파일은 의료영상 데이터를 저장하는 파일 형식으로,
metadata 정보가 아래와 같은 방식(예시파일)으로 규칙적인 형태로 저장되어 있다.
[Dataset.file_meta -------------------------------
(0002, 0000) File Meta Information Group Length UL: 214
(0002, 0001) File Meta Information Version OB: b'\x00\x01'
(0002, 0002) Media Storage SOP Class UID UI: CT Image Storage
(0002, 0003) Media Storage SOP Instance UID UI: 1.2.392.200036.9123.100.200.20090115165425.2009011516542502.45
(0002, 0010) Transfer Syntax UID UI: Explicit VR Little Endian
(0002, 0012) Implementation Class UID SH: '1.2.410.200001.99.2.2030.1'
(0002, 0013) Implementation Version Name SH: 'GDCM 2.8.8'
(0002, 0016) Source Application Entity Title AE: 'gdcmanon'
-------------------------------------------------
(0008, 0000) Group Length UL: 496
(0008, 0008) Image Type CS: ['ORIGINAL', 'PRIMARY', 'AXIAL']
(0008, 0016) SOP Class UID UI: CT Image Storage
(0008, 0018) SOP Instance UID UI: 1.2.392.200036.9123.100.200.20090115165425.2009011516542502.45
(0008, 0020) Study Date DA: '20090115'
(0008, 0021) Series Date DA: '20090115'
(0008, 0022) Acquisition Date DA: '20090115'
(0008, 0023) Content Date DA: '20090115'
(0008, 0030) Study Time TM: '165425.000000'
(0008, 0031) Series Time TM: '165425.000000'
(0008, 0032) Acquisition Time TM: '165425.000000'
(0008, 0033) Content Time TM: '165425.000000'
(0008, 0050) Accession Number SH: ''
(0008, 0060) Modality CS: 'CT'
(0008, 0070) Manufacturer LO: 'Hitachi Medical Corporation'
(0008, 0080) Institution Name LO: 'Kyung Pook National University HP'
(0008, 0090) Referring Physician's Name PN: ''
(0008, 1010) Station Name SH: 'HMTC Dental'
(0008, 1030) Study Description LO: '20090115165425'
(0008, 103e) Series Description LO: 'Series0001'
(0008, 1040) Institutional Department Name LO: 'DEPT. NAME'
(0008, 1070) Operators' Name PN: ''
(0008, 1090) Manufacturer's Model Name LO: 'CB MercuRay'
(0010, 0000) Group Length UL: 72
(0010, 0010) Patient's Name PN: ''
(0010, 0020) Patient ID LO: ''
(0010, 0030) Patient's Birth Date DA: '19851203'
(0010, 1030) Patient's Weight DS: '10.0'
(0018, 0000) Group Length UL: 164
(0018, 0010) Contrast/Bolus Agent LO: 'NONE'
(0018, 0015) Body Part Examined CS: 'CTO'
(0018, 0022) Scan Options CS: ''
(0018, 0050) Slice Thickness DS: '0.377'
(0018, 0060) KVP DS: '120.0'
(0018, 1000) Device Serial Number LO: '0'
(0018, 1100) Reconstruction Diameter DS: '193.024'
(0018, 1120) Gantry/Detector Tilt DS: '0.0'
(0018, 1130) Table Height DS: '0.0'
(0018, 1150) Exposure Time IS: '10000'
(0018, 1151) X-Ray Tube Current IS: '15'
(0018, 5100) Patient Position CS: 'HFS'
(0018, 5101) View Position CS: ''
(0020, 0000) Group Length UL: 368
(0020, 000d) Study Instance UID UI: 1.2.392.200036.9123.100.200.20090115165425
(0020, 000e) Series Instance UID UI: 1.2.392.200036.9123.100.200.20090115165425.2009011516542502
(0020, 0010) Study ID SH: '20090115165425'
(0020, 0011) Series Number IS: '1'
(0020, 0013) Instance Number IS: '45'
(0020, 0020) Patient Orientation CS: ['L', 'P']
(0020, 0032) Image Position (Patient) DS: [96.512000, -96.512000, 16.588000]
(0020, 0037) Image Orientation (Patient) DS: [1.0000, 0.0000, 0.0000, 0.0000, 1.0000, 0.0000]
(0020, 0052) Frame of Reference UID UI: 1.2.392.200036.9123.100.200.20090115165425.1
(0020, 0060) Laterality CS: ''
(0020, 1000) Series in Study IS: '1'
(0020, 1002) Images in Acquisition IS: '288'
(0020, 1040) Position Reference Indicator LO: ''
(0020, 1041) Slice Location DS: '16.588'
(0028, 0000) Group Length UL: 160
(0028, 0002) Samples per Pixel US: 1
(0028, 0004) Photometric Interpretation CS: 'MONOCHROME2'
(0028, 0010) Rows US: 512
(0028, 0011) Columns US: 512
(0028, 0030) Pixel Spacing DS: [0.377000, 0.377000]
(0028, 0100) Bits Allocated US: 16
(0028, 0101) Bits Stored US: 16
(0028, 0102) High Bit US: 15
(0028, 0103) Pixel Representation US: 1
(0028, 1050) Window Center DS: '1000.0'
(0028, 1051) Window Width DS: '4000.0'
(0028, 1052) Rescale Intercept DS: '0.0'
(0028, 1053) Rescale Slope DS: '1.0'
(0032, 0000) Group Length UL: 8
(0032, 4000) Study Comments LT: ''
(7fe0, 0000) Group Length UL: 524300
(7fe0, 0010) Pixel Data OW: Array of 524288 elements,
여기서 내가 찾고싶은 meta data가 있을 경우에
DICOM standard Brower를 참고하면서 어떤 속성들을 왜 써야하는지를 이해하려고하고 있다.
아래처럼 Detail에 내가 찾고싶은 metadata 속성에 대한 정보를 볼 수 있다.
https://dicom.innolitics.com/ciods
All CIODs – DICOM Standard Browser
Welcome The purpose of this application is to make the DICOM standard easier to navigate for software developers, researchers, and radiologists. The main pane displays Part 3 of the DICOM standard as a tree. The top nodes are CIODs, their children are modu
dicom.innolitics.com
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