Evaluation of Dual Radioisotope Techniques for the Diagnosis of Lung Diseases:—Image Superimposition Methods Using 197HgCl2 and Other Radionuclides—

概要

論文の詳細を見る
The dual radioisotope techniques with 197HgCl2 and other radionuclides were carried out using a scintillation camera coupling to a small digital computer. The joint use of tumor imaging, blood pool imaging and/or perfusion imaging was performed for the diagnosis of various lung diseases, and the superimposition image with 197HgCl2 and 99mTc-MAA or 99mTc-HSA (human serum albumin) was obtained to improve anatomic orientation of the radionuclide images. The positional pulses from the scintillation camera were fed into 4090 words memory through matrix input controller, and transferred from computer to magnetic tape recorder. Matrix images of the tape recorder were fed into small digital computer. The tumor image was obtained using 197HgCl2, and patient remaining the same position was given 99mTc-HSA for blood pool imaging and/or 99mTc-MAA for perfusion imaging. These images were displayed as smoothed image with 25 point weighted average, and the subtraction image with 197HgCl2 and 99mTc-HSA was obtained, too. The image as a iso-count map extracted out of the image of 99mTc-MAA or 99mTc-HSA was superimposed to the brightness image of 197HgCl2 or the subtraction image. These procedures were useful not only to improve anatomic orientation of the image but also to make isotope diagnosis of various lung diseases more reliable.
社団法人日本アイソトープ協会の論文