[Correlation between the biological half-life of tritiated water and the body surface area in man. Preliminary report]. / Correlación entre la vida media biológica del agua tritiada y la superficie corporal en humanos. Comunicación preliminar

The literature about the half-life of the tritiated water has shown a great variety from one specimen to another. In order to determine the influence of this variations upon metabolism, mass or body surface we studied 16 healthy subjects and one patient with renal failure. We founded that there is a good correlation between the body surface and the biological half-life of the tritiated water in humans. The correlation average was 1.02.

[Splenogammography with Anger's camera]. / Esplenogammagrafía con cámara de Anger

Through 230 consecutive studies, 180 from patients and 50 from healthy persons, we obtain simultaneous figures of the spleen and the liver. The best position to obtain better scintigraphies of the spleen was the posterior left oblique. The normal dimensions of the spleen image was 11.1 mm. +/- 1.2 mm. (1 sigma) long diameter, and 6.9 mm. +/- 1.1 mm (1 sigma) broad diameter. In a great number of patients we found an enlargement of the spleen in the scintigraphic image without clinical demonstration. The study is easy, rapid and without troubles for patients; moreover it afford an important knowledge in the study of the spleen and the liver in simultaneous form.