A trial of segmental assessment on ordinary scintigrams and SPECT images of the liver

Segmental assessment on ordinary scintigrams and SPECT images of the liver was carried out. Couinaud's segmentation was used in this series. The cases in which the segments having SOLs have been identified by roentgenography (angiography and X-ray CT) and/or (intraoperative) echography were subjected to this study. The areas having the defects corresponding to the above-mentioned SOLs were carefully investigated on both ordinary scintigrams and SPECT images. As the results, we reached to the conclusion that, in fairly many cases, an identification of the segments on both images might be possible and they were complementary to each other. It has become also clear that the segmental markings which have been described in the previously published articles are partly incorrect. Careful efforts for segmental assessment of the liver will be useful for improvement of radionuclide image interpretation of the liver. (author)