원저 : 복부농양진단을 위한 Indium - 111 표지백혈구스캔 ( Scintigraphy with Indium - 111 - oxine Labeled Leukocytes for Localization of Abscesses ) () |
Author |
김병태(Byung Tae Kim),이동수(Dong Soo Lee),이경수(Kyung Soo Lee),최형식(Hyung Shik Choi),김명준(Myung Joon Kim),양승오(Seung O Yang),이재훈(Jae Hoon Lee),최창순(Chang Soon Choi),김택규(Taek Kyu Kim),정준기(June Key Chung),이명철(Myung Chul Lee),고창순(Chang Soon Koh), |
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Abstract |
Detection of deep-seated abscesses is sometimes
difficult with ultrasonogrpahy or computed tomography
alone. Indium-111-labeled leukocyte has widely used in
the localization of abscesses after introduction by
Segal and Thakur in 1976. But there are some
difficulties in using indium- 111-oxine in our country
because of hardness to get the radiopharmaceutical
timely and long time for labeling leukocytes. So we
performed the indium, 111-labeled leukocyte scan for
establishment of the labeling procedure and clinical
application. We labeled the mixed leukocytes from 36 mi
of patient's blood using 4 mi of ACD solution, 7 ml of
6% hydroxyethyl starch solution (HESPANⓡ), 1 mCi of
indium-111 oxine, 5 ml of normal saline and centrifuge.
It took about 2 hours for the preparation of
radiolabeled leukocytes and attention for contamination
was needed. The average injected dose of labeled mixed
leukocytes was 465 uCi. The average number of injected
leukocytes was 2.5×108 and the labeling ratio was
57±13% (Table 2, Fig. 5). These number and ratio were
sufficient for the localization of abscess. About
twenty per cent of indium was labeled to red blood
cells and platelets (Fig. 6) and the half-life of
injected radiolabeled leukocytes was 8.3 hours. Scan
was performed in 9 patients who were suspected to have
abscesses clinically or radiologically. Three patients
were positive, in one patient who had abscess close to
lower lumbar vertebrae was surgically drained and
another 2 positive cases did not show abscess clearly
on computed tomography, so only antibiotics were
administrated and treated successfully. The negative 6
patients were improved without specific treatment. In
conclusion, the use of indium-111 oxine labeled
leukocytes for localization of abscesses were very
specific and helpful in the decision of treatment
considering its relatively simple labeling method, and
could be easily performed providing timely supply of
the radiopharmaceutical. |
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Full text Article |
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