Fig. 1From: The value of 99mTc-MAA SPECT/CT for lung shunt estimation in 90Y radioembolization: a phantom and patient studyA coronal and transverse slice of a patient 99mTc-MAA SPECT/CT processed through the workflow for auto contouring and LSF calculation. The CT-threshold-based lung contour with and without the 2 cm exclusion region is shown as well as the SPECT threshold-based liver contour. The lung shunt (original) refers to the value calculated without the exclusion regionBack to article page