The Radiological Society of North America (RSNA®) has teamed up with the Society of Thoracic Radiology (STR) to help improve the use of machine learning in the diagnosis of PE. In this competition, participants: 1. Detect and classify PE cases. 2. Use chest CTPA images (grouped together as studies) and your data science skills to enable more accurate identification of PE. If successful, It will help reduce human delays and errors in detection and treatment. ★ In this competition, we ranked at the zone of silver medal (49th), as the link shows: Leaderboard: https://www.kaggle.com/c/rsna-str-p