https://123dok.net/document/q5m4rj7y-en-fr-automatic-determination-of-optimal-viewing-angle-for-the-coronary-lesion-observation-in-rotationnal-x-ray-angiography-determination-automatique-de-l-incidence-optimale-pour-l-observation-des-lesions-coronaires-en-imagerie-rotationnelle-r-x.html