This course focuses on the application of imaging, as a fundamental tool for diagnosis and management, in Critical Care Units. The most commonly requested imaging modality is portable radiography which is very valuable in differentiating common clinical scenarios, fluid management and handling of life-support lines and tubes. Computerized Tomography is spared for more complex situations and further assists with decision-making, particularly when it comes to invasive procedures. Portable ultrasound has found numerous indications in critically-ill patients, provides diagnostic aid and guides bedside procedures. This course covers a variety of illnesses, involving different body organs, which are commonly encountered in ICU setting and explains utility of imaging in diagnosis, problem solving, and facilitating procedures in critically ill patients.