{
  "title": "UOTW 1 - Ultrasound of the Week 2.webm",
  "authors": "Ben Smith / Ultrasound of the Week",
  "sourcePage": "https://commons.wikimedia.org/wiki/File:UOTW_1_-_Ultrasound_of_the_Week_2.webm",
  "article": "https://coreultrasound.com/uotw-1/",
  "downloadUrl": "https://upload.wikimedia.org/wikipedia/commons/9/9e/UOTW_1_-_Ultrasound_of_the_Week_2.webm",
  "license": "CC BY-SA 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/",
  "sourceFile": "source.webm",
  "source_sha256": "87cc421fe50e32b14f710a86e06a0d23404560e823018266aabae1d67f2283dc",
  "atlasFile": "frames.png",
  "atlas_sha256": "a01da56b59de0b093c3adebed354045c6f9e5c0cb77c8a0537f607431b95601c",
  "sourceIntervalSeconds": [
    0.0,
    6.88
  ],
  "frameCount": 173,
  "displayGeometry": "Original 792x470 square pixels, uniformly reduced to 640x380 (rounding to even pixels), padded by 50 pixels above and below. No intensity adjustment.",
  "processing": "All 173 consecutive original frames, no synthetic motion or temporal interpolation. PNG atlas lossless after documented spatial resize. Approximate manual visible-lumen contours only within 0\u20131.2 and 4.0\u20136.88 seconds. No highlight or contour interpolation across the obscured transition. Not clinically validated. Atlas and contour adaptations: CC BY-SA 4.0.",
  "context": "Source case: traumatic intraperitoneal bladder rupture, partially distended bladder with heterogeneous contents. Not a normal reference.",
  "bodyRegistration": "No source probe tracking. Separate supine male skin model illustrates the general window, not the source patient or calibrated slice position. Right-kidney source patient is female. The bladder excerpt has no explicit plane label; no exact acquisition plane is asserted.",
  "retrieved": "2026-10-25"
}