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[The normal liver-spleen scintigram with the gamma camera (author's transl)].

In 104 patients without liver disease, liver spleen scintigrams were analysed according to uniform criteria. The scintigrams were taken after application of 99mTc-sulfur colloid in at least six projections with the gamma camera and coupled data processing. As a significant difference compared to scanner scintigraphy, a non-homogeneous storage pattern is frequently also found in the healthy liver, especially in the ventral projection. Superimpositions or impressions caused by extra- or intrahepatic structures were also more frequent and more pronounced than with scanner scintigraphy. As expected, there were no appreciable differences with regard to the liver forms. The following quantitative parameters were determined (mean +/- SD): maximum vertical diameter of the liver: 199 +/- 20.0 mm, maximum horizontal diameter: 219 +/- 19.8 mm; liver area (ventral projection): 187 +/- 27.3 cm2; spleen area (dorsal projection): 55.3 +/- 15.9 cm2; index of liver size (liver area divided by the normal weight of the patient as determined from a given table): mean +/- SD = 2.69 +/- 0.58 (ventral projection); spleen area index (spleen area divded by body surface): mean = 3.03 +/- 0.81 (dorsal projection). The choice of projection did not have any appreciable effect on the area dimensions and indices, so that with super-imposition of organs these values can be determined with sufficient accuracy even from oblique projections.