LV GRAM / WATCH & RECOGNIZE — MEDIA CREDITS Every clinical video in this guide comes from an actual published clinical or educational source. No clinical video was generated. Case-specific attribution, original article links, and licensing notes appear in each card. LOCALLY HOSTED LICENSED CLIPS normal-lv.mp4 — Supplementary Video S3, unchanged Olusan AA, Brennan PF, Johnston PW. Isolated right ventricular myocardial infarction: a case report. European Heart Journal–Case Reports. 2021;5(1):ytaa494. © The Author(s) 2020. Oxford University Press on behalf of the European Society of Cardiology. Source: https://academic.oup.com/ehjcr/article/5/1/ytaa494/6028525 DOI: https://doi.org/10.1093/ehjcr/ytaa494 License: Creative Commons Attribution–NonCommercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/ This noncommercial educational study guide uses the source supplement without changes to the video. normal-poster.jpg is a single extracted source frame used as the player's preview image. It does not replace the full cine. severe-mr.mp4 — Additional file 3, unchanged Milioglou I et al. Idiopathic posterior papillary muscle rupture; a case report. BMC Cardiovascular Disorders 22,151 (2022). Source: https://link.springer.com/article/10.1186/s12872-022-02570-4 DOI: https://doi.org/10.1186/s12872-022-02570-4 License: Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ The source clip is unchanged. mr-poster.jpg is a single extracted source frame used as the player's preview image. OTHER CLIPS Other videos are viewed through original publisher-hosted streams or players and are not copied to this Site. Their original copyright and license terms continue to apply. External links do not imply endorsement by the authors or publishers. EXAM SCOPE This is an educational recognition atlas. It does not reproduce recalled ABIM examination content, establish a complete list of Day 2 LV-gram findings, or claim these source clips are used in the examination. RAO30 TEACHING SUPPLEMENT mr-teach-rao30.mp4 — Original supplementary Video S3, unchanged. Konishi et al. (2016), source PMCID PMC5120478, Figure 3 / Supplementary Video S3. Source and exact projection caption: https://pmc.ncbi.nlm.nih.gov/articles/PMC5120478/#Fig3 License: Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ MR CLARITY TEACHING REVISION mr-clarity-poster.png and mr-clarity-poster.svg show the same unchanged extracted Konishi et al. RAO30 cine frame side by side, with separate approximate contrast-region overlays and large LV/LA labels on the teaching panel. The marked regions are not exact chamber borders. No RA/RV contours were invented. Licensed source: DOI10.1186/s12872-016-0413-1, CC BY4.0. The original extended controls and explanation remain in learn-mr-reference.html.