RT Book, Section A1 Qadir, Nida A1 Mathew, Roshen A2 Oropello, John M. A2 Pastores, Stephen M. A2 Kvetan, Vladimir SR Print(0) ID 1136413172 T1 Imaging of the Critically Ill Patient: Radiology T2 Critical Care YR 1 FD 1 PB McGraw-Hill Education PP New York, NY SN 9780071820813 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1136413172 RD 2024/03/28 AB KEY POINTSChest radiography is particularly useful in the initial placement, positioning of invasive hardware, and for monitoring of complications postprocedure in critically ill patients.Contrast imaging should be used judiciously in critically ill patients. Computed tomography (CT) with contrast helps further evaluation of lung parenchyma and pulmonary vascular lesions.Atelectasis and pneumonia are common causes of respiratory failure in the intensive care unit (ICU). Unrecognized it can progresses to cavitation and abscess formation.High probability ventilation perfusion scans have good positive predictive value for Pulmonary Embolism, and is in par with CT Pulmonary Angiography which show intraluminal filling defects for the same.Pulmonary edema and acute respiratory distress syndrome (ARDS) may have similar radiologic features but have a different time of onset, presentation, and its ensuing clinical progression.Bedside ultrasound is a convenient option for the evaluation and drainage of the pleural space.