See pictures of a normal lung perfusion assessed with Flash scanning. Read more

Massive central and segmental pulmonary embolism. Read more

Minimal subpleural loss of perfusion due to a sub-subsegmental pulmonary embolism that can´t be distinguished with angiography. Read more

Purpose of this study was to determine the diagnostic value of dual energy CT in the assessment of pulmonary perfusion with reference to pulmonary perfusion scintigraphy. Read more

History A 72-year-old female patient suffering from severe dyspnea is referred for pulmonary CT angiography to rule out pulmonary embolism. Question CT angiography is performed to rule out pulmonary embolism, right heart dilatation or pulmonary hypertension. Diagnosis/Differential diagnosis Apart from acute pulmonary embolism, differential diagnoses include primary right heart failure, secondary pulmonary hypertension, congestive heart … Read more

The following question has been sent by Dr. Zhaoyane, Jinling Hospital Nanjing, China: Is the intensity of the color coding related to that of iodine in lung perfusion? Thanks! Thorsten R.C. Johnson M.D., University Hospitals Grosshadern, Munich: Of course, the intensity of the color is to represent the content of iodine in the … Read more

The following question has been sent by Dr. Zhouyisheng, China: Could you tell me how to scan and postprocess: Could you tell me the scan protocol on dual-energy (lung perfusion) and how to postprocess if you use MINinum -960 ,MAX -600 (siemens default). You can get one result then you use … Read more