DICOM metadata in one line, without a pixel pipeline.

import { parseDicom } from "@cosyte/dicom";

// A synthetic CT object, saved without its 128-byte preamble: an invented patient and example-root
// UIDs, no real PHI. In your integration these are the bytes of the file you read.
const buf = Buffer.from(
  "AgAAAFVMBAAcAAAAAgAQAFVJFAAxLjIuODQwLjEwMDA4LjEuMi4xAAgAFgBVSRoAMS4yLjg0MC4xMDAwOC41LjEuNC4xLjEuMgAIABgAVUkeADEuMi44MjYuMC4xLjM2ODAwNDMuOC40OTguMTExAAgAIABEQQgAMTkwMDAxMDEIAGAAQ1MCAENUEAAQAFBOCABEb2VeSmFuZRAAIABMTwYATVJOLTQyEAAhAExPDABTQU1QTEUtSE9TUCAgAA0AVUkeADEuMi44MjYuMC4xLjM2ODAwNDMuOC40OTguMS4xACAADgBVSR4AMS4yLjgyNi4wLjEuMzY4MDA0My44LjQ5OC4xLjIAIAARAElTAgAyICgAEABVUwIAAAIoABEAVVMCAAACKAAAAVVTAgAQACgAAwFVUwIAAQAoAFIQRFMGAC0xMDI0ICgAUxBEUwIAMSAoADAARFMIADAuNVwwLjUg",
  "base64",
);
const ds = parseDicom(buf);

console.log("patient", ds.patient.id, "issuer", ds.patient.issuerOfId);
console.log("study", ds.study.instanceUid);
console.log("series", ds.series.modality, "image", ds.image.rows, "x", ds.image.columns);
console.log("rescale slope", ds.image.rescaleSlope, "intercept", ds.image.rescaleIntercept);
console.log("tolerated", ds.warnings.length, ds.warnings[0]?.code);

// The values printed above, which the test suite asserts on every run.
// NOT globally unique on its own: pair it with ds.patient.issuerOfId.
ds.patient.id; // => "MRN-42"
// The global study anchor.
ds.study.instanceUid; // => "1.2.826.0.1.3680043.8.498.1.1"
ds.series.modality; // => "CT"
ds.image.rows; // => 512
// number | undefined: undefined means "absent", never a substituted 1.
ds.image.rescaleSlope; // => 1
// What the parser tolerated, as stable codes.
ds.warnings.map((w) => w.code); // => ["DICOM_MISSING_PREAMBLE"]