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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Ann Nucl Med. 2014 Apr 8;28(6):540–550. doi: 10.1007/s12149-014-0844-7

Table 1.

Measurements of total activity in lesion with metal prosthesis in place from PET images using different types of attenuation correction.

TXAC CT AC MAR CT AC
Decay corrected total activity in imaged lesion [MBq] 3.41 4.70 3.32
Reference Activity [MBq] 3.37 3.37 3.37
Ratio to reference activity 1.01 1.40 0.99

TXAC: transmission line source correction, CT AC: CT based attenuation correction MAR CT AC: CT based attenuation correction using MAR. The last row gives the ratio of imaged activity to reference activity.