Technetium-99m-labeled macroaggregated albumin lung perfusion scan for diagnosis of hepatopulmonary syndrome: A prospective study comparing brain uptake and whole-body uptake

Figure 1 Flowchart of patient selection.

Figure 2 Macroaggregated albumin lung perfusion scan in a 47-year-old female with very severe hepatopulmonary syndrome. A: The brain uptake was 35%; B: The whole-body uptake was 58%.

Figure 3 Receiver operating characteristic curves of brain and whole-body uptake for detecting intrapulmonary vascular dilatations.