使用 Python 将 DICOM 标记转换为 Excel 时出错

Question

我正在尝试将.dcm 文件中的 DICOM 标记转换并列出到 Excel 中（使用 pydicom），但某些标记在转换过程中显示错误（患者姓名、患者 ID 等）。

一些标签在 Excel 文件中显示“无”，尽管它们包含/显示 DICOM 格式的数据（SOP 类 UID、SOP 实例 UID 等）。我该如何解决这个问题？

import xlsxwriter 
import sys 
import pydicom 
import os.path
from pydicom.valuerep import PersonName
keywords = ("Patient's Name",
            "Patient ID",
            "Patient's Birth Date",
            "Patient's Sex",
            "SOP Class UID",
            "SOP Instance UID",
            "Group Length",
            "Manufacturer",
            "Referring Physician's Name",
            "Study ID",
            "Patient Orientation",
            "Series Number",
            "Pixel Data",
            "Group Length",
            "Rows",
            "Columns",
           )

# ...
            
dcm_files = [r"C:\Users\akhil\Downloads\Sample_Dataset\Sample_Dataset\PRASANNA_KUMARI\21_12_2013_11_13_46_AM\IMG-0001-00001.dcm"]   

for dcm_file in dcm_files:
    ds = pydicom.filereader.dcmread(dcm_file)
    workbook = xlsxwriter.Workbook(os.path.basename(dcm_file) + '.xlsx')
    worksheet = workbook.add_worksheet()

    row = 0
    col = 0

    for keyword in keywords:
        value = ds.get(keyword, "None")
        if isinstance(value, list):
            value = ", ".join([str(x) for x in value])
        elif isinstance(value, PersonName):
            value = str(value)
        worksheet.write(row, col, keyword)
        worksheet.write(row + 1, col, value)
        col += 1

workbook.close()

DICOM 文件中的一些标签：

(0008, 0005) Specific Character Set              CS: 'ISO_IR 100'
(0008, 0016) SOP Class UID                       UI: Secondary Capture Image Storage
(0008, 0018) SOP Instance UID                    UI: 1.2.300.0.7230010.3.1.4.3397350519.8248.1599586949.14
(0008, 0020) Study Date                          DA: '20200908'
(0008, 0021) Series Date                         DA: '20200908'
(0008, 0022) Acquisition Date                    DA: '20200908'
(0008, 0023) Content Date                        DA: '20200908'
(0008, 0030) Study Time                          TM: '155900'
(0008, 0031) Series Time                         TM: '155900'
(0008, 0032) Acquisition Time                    TM: '155900'
(0008, 0033) Content Time                        TM: '155900'
(0008, 0050) Accession Number                    SH: ''
(0008, 0060) Modality                            CS: 'OT'
(0008, 0064) Conversion Type                     CS: ''
(0008, 0070) Manufacturer                        LO: 'SANTESOFT'
(0008, 0090) Referring Physician's Name          PN: ''
(0010, 0000) Group Length                        UL: 48
(0010, 0010) Patient's Name                      PN: 'NO^NAME'
(0010, 0020) Patient ID                          LO: '00000001'
(0010, 0030) Patient's Birth Date                DA: ''
(0010, 0040) Patient's Sex                       CS: ''
(0018, 0000) Group Length                        UL: 14
(0018, 1063) Frame Time                          DS: "33.0"

Answer 1

您在这里使用的关键字不正确。首先，DICOM 关键字没有's 部分，例如它被称为“患者姓名”，而不是“患者姓名”（大约 15 年前左右，DICOM 标准已对此进行了更改）。
其次，关键字没有空格，所以如果你想使用带空格的名称以便于阅读，你必须将它们删除以便查找，例如：

keywords = ("Patient Name",
            "Patient ID",
            "Patient Birth Date",
            "Patient Sex",
            "SOP Class UID",
            "SOP Instance UID",
            "Group Length",
            "Manufacturer",
            "Referring Physician Name",
            "Study ID",
            "Patient Orientation",
            "Series Number",
            "Group Length",
            "Rows",
            "Columns",
            )

...

for dcm_file in dcm_files:
    ds = pydicom.filereader.dcmread(dcm_file)
    ...
    for keyword in keywords:
        dcm_keyword = keyword.replace(' ', '')  # remove the spaces for the lookup
        value = ds.get(dcm_keyword, "None")

请注意，我已删除标记名称中的所有撇号，并且我还删除了Pixel Data - 将二进制数据转换为字符串将无法正常工作，您当然不想在Excel 表格。