Liver Scanning with 113mIn-Colloid
1971 Volume 20 Issue 11 Pages 588-596
Details
1971 Volume 20 Issue 11 Pages 588-596
99mTc and 113mIn are much harmless to the patients than the other radioisotopes, such as 198Au, 131I, 203Hg, etc., since their half lives are shorter. So that they can be given in much more doses and used broadly in scanning the brain, lung, liver, spleen, kidney, placenta, bone marrow, cardiac pool, etc. 113mIn is produced from 113Sn-113mIn generator by milking and due to its short half life, the generator can be eluted several times a day, and can be used for a long time, even more than 6 months, because the half life of 113Sn is 118 days long.
The simplified preparation of reliable scanning agents is made possible by use of a closed generator system and pre-sterilized vials containing the appropriate chemicals to make the specific radio pharmaceuticals.
Liver scanning with 113mIn (OH) 3-colloids was tried on 41 cases, such as hepatitis, cirrhosis, tumors, etc.
In this way diagnostically available images were obtained in all cases.
The liver uptake of injected 113mIn (OH) 3-colloids intravenously was 85% on an average in normal cases, and liver radiation dose from 2 mCi 113mIn (OH) 3-colloids was about 0.85 rads.
Contamination of 113Sn in 113mIn was identified with hematoxylin method, and it was less than 0.003% in concentration.
Therefore 113mIn is very available isotope for liver scanning. (Received July 10, 1971)
