{
  "id": "suresult-0644",
  "title": "Hepatic vein draining into the IVC \u00b7 B-mode \u00b7 D3Pro \u00b7 5 MHz",
  "creator": "Suresult",
  "webpage_url": "https://suresultmed.com/suresult-video-library/#clip-post-32545",
  "download_url": "https://suresultmed.com/wp-content/uploads/suresult-asset-0644-liver-ultrasound-third-view-with-convex-wireless-probe-fs.mp4",
  "license": "Creative Commons Attribution 4.0 International",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "licence_reference": "https://suresultmed.com/image-license/",
  "commercial_reuse": true,
  "checked": "2026-10-30",
  "copyright_notice": "\u00a9 Suresult",
  "attribution": "Image adapted from Suresult (suresultmed.com), CC BY 4.0. Original: Hepatic vein draining into the IVC, asset0644. Adapted: fixed crop, outside-fan masking, uniform resize and independent approximate teaching overlays.",
  "attribution_location": "Sources & about and this source.json",
  "duration": 10,
  "width": 912,
  "height": 672,
  "fps": 10,
  "frames": 100,
  "source_sha256": "635dacf14479ef2a217ae485a7812993565d2ad76637d78c2b75dce22acfa07d",
  "sourceInterval": [
    0,
    9.9
  ],
  "sourceCrop": [
    32,
    8,
    856,
    642
  ],
  "display_dimensions": [
    640,
    480
  ],
  "annotation_coordinates": [
    716,
    537
  ],
  "adaptations": "All100consecutive native frames. Static geometric mask outside the ultrasound fan removes equipment UI only. Exact4:3 crop uniformly resized to640x480. No fabricated anatomy, no frame interpolation, no contrast alteration. Original file retained unchanged.",
  "limitations": "Regional fanning and physiological motion, not a tracked long-distance scan. Source describes hepatic venous drainage into IVC; the visible outflow is treated as one combined region where the exact junction is unclear. No named right/middle/left branches, no hepatic artery/bile duct identification from small lumina, no IVC dimension or collapsibility measurement. Teaching overlays are approximate and not clinically validated.",
  "annotated_structures": [
    "Liver parenchyma",
    "Hepatic venous lumen (where distinct)",
    "Hepatic venous outflow / IVC junction region",
    "Small intrahepatic vessel cross-sections",
    "Diaphragmatic interface",
    "Abdominal wall layers"
  ],
  "anatomical_references": [
    "https://www.acep.org/sonoguide/advanced/resource-limited-settings",
    "https://pmc.ncbi.nlm.nih.gov/articles/PMC3478706/"
  ],
  "annotation_method": "Hand-reviewed anatomical ROIs and native-frame dark-lumen contour extraction. Every frame has its own contour record. All100frames reviewed in original and overlay contact sheets. Small lumina take priority over parenchyma. Exactframe last-at-or-before indexing; uncertain structures hidden."
}