Abstract
The application of 4096 channel memory unit to the radioisotope imaging is described. At the time of scanning, the radioactive distribution in the organ is stored in digital form. The content of the memory unit is displayed on the oscilloscope during or after examination. The digital scan can be trans-ferred to magnetic tape or paper tape for further processing. Since data are digital, image smoothing or scan mixing are possible. With this system, total counts of scintiscan matrix can be summed up. The uptake of radionuclide in the organ is calculated with a proper phantom. We have applied this method to thyroid uptake. As a result of this method, digital data storage has proved to be useful for diagnosis of scintigrams.
