{
  "title": "DICOM Lens synthetic decoder lab",
  "created": "2026-10-18",
  "type": "actual offline DICOM MCP decoder output; precomputed web viewer",
  "synthetic": true,
  "patient_data": false,
  "native_ui_capture": false,
  "generator": "Independent formula port of AssistantApp DICOMPhantomGenerator.ctLinearity into Explicit VR Little Endian CT DICOM",
  "geometry": {
    "synthetic": true,
    "dimensions": [
      176,
      176,
      72
    ],
    "spacing_mm": [
      1.5,
      1.5,
      1.5
    ],
    "HU_counts": {
      "-1000": 1233832,
      "-800": 23664,
      "-100": 23664,
      "0": 23664,
      "40": 901784,
      "1000": 23664
    },
    "minimum_HU": -1000,
    "maximum_HU": 1000,
    "mean_HU": -535.9858528466483,
    "voxel_count": 2230272,
    "geometry": "Exact formula port of DICOMPhantomGenerator.ctLinearity; generated independently into standard uncompressed explicit-VR little-endian CT DICOM."
  },
  "tools": [
    "dicom_render_slice",
    "dicom_mpr",
    "dicom_mip",
    "dicom_volume_stats",
    "dicom_radiomics"
  ],
  "render_parameters": {
    "axial": {
      "index": 20,
      "wl": 0,
      "ww": 2200
    },
    "axial-soft": {
      "index": 36,
      "wl": 40,
      "ww": 400
    },
    "coronal": {
      "plane": "coronal",
      "position": 0.5,
      "wl": 0,
      "ww": 2200,
      "maxdim": 880
    },
    "mip": {
      "plane": "axial",
      "position": 0.5,
      "slabMM": 60,
      "wl": 0,
      "ww": 2200
    }
  },
  "results": {
    "axial": {
      "index": 20,
      "count": 72
    },
    "coronal": {
      "H": 360,
      "plane": "coronal",
      "W": 880
    },
    "mip": {
      "H": 176,
      "plane": "axial",
      "W": 176,
      "slabMM": 60
    },
    "volume": {
      "peakHU": 1000,
      "contrastLikely": false,
      "volume": {
        "ny": 176,
        "dz": 1.5,
        "nx": 176,
        "dy": 1.5,
        "dx": 1.5,
        "nz": 72
      },
      "hasMetal": false,
      "metalVoxels": 0,
      "tissueFractions": {
        "soft(60..300)": 0,
        "denseBone(1500..3000)": 0,
        "fluid/soft(-30..60)": 0.4149484905876951,
        "metal(>=3000)": 0,
        "fat(-300..-30)": 0.010610365013774105,
        "bone(300..1500)": 0.010610365013774105,
        "air(<-300)": 0.5638307793847567
      },
      "contrastProxyHU": 40,
      "acquisition": {
        "volumetricAnalysisRecommended": true,
        "maxSliceTiltDeg": 0,
        "plane": "axial",
        "verdict": "parallel stack"
      },
      "tissueVoxelCounts": {
        "soft(60..300)": 0,
        "denseBone(1500..3000)": 0,
        "fluid/soft(-30..60)": 925448,
        "metal(>=3000)": 0,
        "fat(-300..-30)": 23664,
        "bone(300..1500)": 23664,
        "air(<-300)": 1257496
      },
      "huSaturation": {
        "lowSamples": 0,
        "highSamples": 0,
        "peakIsContainerCeiling": false,
        "note": "no sample exceeded the Int16 range; peakHU is a measurement"
      }
    },
    "bone": {
      "energy": 23664000000,
      "minHU": 1000,
      "mean": 1000,
      "maxHU": 1000,
      "entropyBits": 0,
      "voxels": 23664,
      "median": 1000,
      "skewness": 0,
      "max": 1000,
      "p95": 1000,
      "kurtosisExcess": 0,
      "volumeMM3": 79866,
      "std": 0,
      "p5": 1000,
      "min": 1000
    },
    "radiomics": {
      "energy": 1274320454400,
      "minHU": -1000,
      "maxHU": 1000,
      "entropyBits": 1.2790518296431383,
      "mean": -535.9858528466483,
      "median": -1000,
      "skewness": 0.4144786961323098,
      "voxels": 2230272,
      "max": 1000,
      "p95": 40,
      "kurtosisExcess": -1.3828589632237407,
      "volumeMM3": 7527168,
      "std": 533.004336936276,
      "p5": -1000,
      "min": -1000
    }
  },
  "per_HU_checks": [
    {
      "hu": -1000,
      "maxHU": -1000,
      "energy": 1233832000000,
      "mean": -1000,
      "entropyBits": 0,
      "minHU": -1000,
      "voxels": 1233832,
      "p95": -1000,
      "skewness": 0,
      "max": -1000,
      "median": -1000,
      "kurtosisExcess": 0,
      "volumeMM3": 4164183,
      "std": 0,
      "p5": -1000,
      "min": -1000
    },
    {
      "hu": -800,
      "maxHU": -800,
      "minHU": -800,
      "mean": -800,
      "entropyBits": 0,
      "energy": 15144960000,
      "voxels": 23664,
      "p95": -800,
      "max": -800,
      "median": -800,
      "skewness": 0,
      "volumeMM3": 79866,
      "kurtosisExcess": 0,
      "std": 0,
      "p5": -800,
      "min": -800
    },
    {
      "hu": -100,
      "energy": 236640000,
      "minHU": -100,
      "mean": -100,
      "entropyBits": 0,
      "maxHU": -100,
      "voxels": 23664,
      "p95": -100,
      "max": -100,
      "skewness": 0,
      "median": -100,
      "kurtosisExcess": 0,
      "volumeMM3": 79866,
      "std": 0,
      "p5": -100,
      "min": -100
    },
    {
      "hu": 0,
      "energy": 0,
      "minHU": 0,
      "mean": 0,
      "entropyBits": 0,
      "maxHU": 0,
      "voxels": 23664,
      "p95": 0,
      "skewness": 0,
      "max": 0,
      "median": 0,
      "kurtosisExcess": 0,
      "volumeMM3": 79866,
      "std": 0,
      "p5": 0,
      "min": 0
    },
    {
      "hu": 40,
      "maxHU": 40,
      "minHU": 40,
      "mean": 40,
      "entropyBits": 0,
      "energy": 1442854400,
      "voxels": 901784,
      "median": 40,
      "skewness": 0,
      "p95": 40,
      "max": 40,
      "kurtosisExcess": 0,
      "volumeMM3": 3043521,
      "std": 0,
      "p5": 40,
      "min": 40
    },
    {
      "hu": 1000,
      "maxHU": 1000,
      "minHU": 1000,
      "mean": 1000,
      "energy": 23664000000,
      "entropyBits": 0,
      "median": 1000,
      "voxels": 23664,
      "max": 1000,
      "p95": 1000,
      "skewness": 0,
      "kurtosisExcess": 0,
      "volumeMM3": 79866,
      "std": 0,
      "p5": 1000,
      "min": 1000
    }
  ],
  "verified": {
    "all_six_HU_means_and_voxel_counts_match": true,
    "whole_volume_mean_matches": true
  },
  "limits": [
    "Precomputed outputs, not a browser DICOM engine",
    "Not a native Lens UI screenshot",
    "Synthetic pipeline check, not clinical validation",
    "No segmentation or diagnostic capability demonstrated"
  ],
  "images": {
    "axial.jpg": "513b0b60a17b2e0363490e89fcfcf72034ead5e07100a3ebbc02c206747ec1c5",
    "coronal.jpg": "e21063dd816be8036c98a37fbea3562e3d5ada10221e217e9f024cfd9b38f6da",
    "mip.jpg": "513b0b60a17b2e0363490e89fcfcf72034ead5e07100a3ebbc02c206747ec1c5",
    "axial-soft.jpg": "f45ba61e37b10b7bd7296d515b68ee1389f3f289e5bbddafeb06cbf128a670a5"
  }
}