Langhui

Chest X-rays and reports

Five million DICOM images + double-trial diagnostic reports ⁇ Double-referral standards (two senior radiologists) ⁇ Core training data for radiology I.A.

5 Million
DICOM Image
Double Review
Gold Standard
DICOM+Text
Dual-Modal
Resale
Data Source
1-2 Months
Delivery Cycle

Dataset Overview

Definition:Chest X-Ray Plain Films and Reports Datasetis provided byChangsha Langhui Information Technology Co., Ltd.Large-scale chest image data collections. Cover 5 million cases of DICOM-formated chest X-rays and structured diagnostic reports, using a double-review mechanism (with independent review by two senior radiologists) to ensure the standard quality of the diagnosis.

Dataset NameChest X-Ray Plain Films and Reports Dataset
Total Data VolumeFive million chest X-rays.
Data TypeDICOM Image + Text Diagnostic Report
Data SourceResale (partnerships with more than 50 hospitals)
License TypeSublicensing Including direct authorization from three Grade-A Tertiary Hospitals
Quality AssuranceDouble-trial mechanism (independent examination of two senior radiologists)
Covered Disease CategoriesPneumonia, pulmonary arthritis, aerobics, chest fluids, tuberculosis, pulmonary emphysema, normal chest tablets
OrganisationPositive (PA/AP), side

Core Data Fields

Each piece of data contains complete structured fields that cover everything from raw data to specialized diagnostics.

Field CategoryField CountTypical Fields
DICOM Image8DICOM file, image matrix size, pixel spacing, window window slot, input position, device type, exposure parameters
Imaging Findings10Lung texture, nodal position/size/density, real variant, plethora, gastrob, insulation abnormality, bone abnormality
Diagnostic Conclusion6Main, secondary, normal/unusual marking, ICD-10 code, emergency level
Patient Information4Age, gender, examination date, clinical department (DICOM-compliant de-identification)
Audit information3D/level of first instance physician, level of second instance physician ID/level of second instance physician, verification consistency marker

Data Sample Showcase

The following is a de-identified structured JSON sample illustrating the typical data format.

{
  "study_id": "CXR-2023-00567890",
  "meta": {"age_group": "30-40","gender": "male","view": "PA"},
  "findings": {"lung_fields": "sample value","heart": "sample value","mediastinum": "sample value","bones": "sample value"}, 
  "diagnosis": {"primary": "CNXCN","abnormal": false},
  "review": {"reviewer_1": "sample value","reviewer_2": "sample value","consensus": true}
}

AI Application Scenarios

Breast disease AI screening

Five million double-curricular standard data training in-depth learning models for automatic detection and classification of common chest anomalies such as pneumonia, pulmonary knots, aerobic chests, chest cavity fluids, etc.

Pulmonary Flysy Smart Test

Large-scale chest-chip data training in pulmonary knot detection models, through nodal positioning, size measurement, density classification and benign risk assessment, to support early screening for lung cancer.

Emergency chest tablets are rapidly distributed.

The development of an automated system for the distribution of emergency chests based on the abnormality detection model, which quickly identifies acute conditions such as aerobic chests and large amounts of chest fluids, improves the efficiency of emergency care.

Normal/Abnormal Automatic Classification

Training of a normal/abnormal 2 classification model for large-scale primary screening of chests and automatic filtering of normal films at the medical examination centre to reduce the workload of radiologists.

Auto-generated chest report

Image-report pairing data are used to train auto-generated models for chest report, to achieve the structured extraction and auto-writing of diagnostic reports as seen in the images.

Radiomass Control AI

The consistency analysis of double-reviewed data is used to train the ACMI model, automatically tag images of inconsistent diagnosis by two physicians, and to support quality control management.

Frequently asked questions

Is the DICOM data de-identified?
All DICOM documents have been de-sensitized with compliance, removing PHI information such as patient name, ID, date of birth, etc.
How does the double-review mechanism work in practice?
Each chest card is independently viewed and a diagnostic report is produced by two highly qualified radiologists (principal and above), and the consistent diagnosis data are marked as high confidence samples; the inconsistent data are marked as samples that can be used for uncertainty analysis.
What is the format and quality of the images?
Images are in standard DICOM format and contain raw pixel data. The parameters of resolution, window slots, etc., retain the original capture settings, which meet the training needs of different algorithms and models.
Does the data involve patient privacy?
All data have been de-sensitized from DICOM compliance.
How to Get a Data Sample?
Please contactChangsha Langhui Information Technology Co., Ltd. DataAssetsAPI platform to obtain detailed data catalogues, pre-species of de-identified samples and quotation options.

Need for customised medical data programs?

Changsha Langhui Information Technology Co., Ltd. The DataAssetsAPI platform is dedicated to providing high-quality, compliant medical data assets for AI companies and scientific research institutions. Cooperate with 50 + hospitals, including Fudan 100 type hospitals.

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