scholarly journals DETERMINATION OF RADIOACTIVELY LABELED GLOBULIN TURNOVER BY THE DIRECT WHOLE-BODY COUNTING TECHNIQUE*

1961 ◽  
Vol 40 (4) ◽  
pp. 697-702 ◽  
Author(s):  
Stuart W. Lippincott ◽  
Stanton H. Cohn ◽  
Helen Hamel ◽  
Samuel Fine ◽  
Samuel Korman
Keyword(s):  
Whole Body ◽  
Counting Technique ◽  
Body Counting ◽  
Whole Body Counting

Determination of the optimum window for whole body counting of 47Ca

1974 ◽  
Vol 1 (4) ◽  
pp. 223-225 ◽  
Author(s):  
M.L. Carrejas ◽  
M.A. Mendez ◽  
N. Soria ◽  
V. Pecorini ◽  
O.J. Degrossi
Keyword(s):  
Whole Body ◽  
Body Counting ◽  
Whole Body Counting

Determination of potassium in the skeletal muscles by whole-body counting

2003 ◽  
Vol 40 (0) ◽  
pp. s68-s72 ◽  
Author(s):  
M. Isaksson ◽  
I. Bosaeus ◽  
Y. Surac ◽  
M. Alpsten
Keyword(s):  
Skeletal Muscles ◽  
Whole Body ◽  
Body Counting ◽  
Whole Body Counting

scholarly journals The Determination of Iron Absorption and Loss by Whole Body Counting

Blood ◽  
1962 ◽  
Vol 20 (5) ◽  
pp. 517-531 ◽  
Author(s):  
D. C. PRICE ◽  
S. H. COHN ◽  
L. R. WASSERMAN ◽  
P. G. REIZENSTEIN ◽  
EUGENE P. CRONKITE
Keyword(s):  
Iron Deficiency ◽  
Aplastic Anemia ◽  
Iron Absorption ◽  
Whole Body ◽  
Whole Body Counter ◽  
History Of ◽  
Body Counting ◽  
Menstruating Women ◽  
Whole Body Counting

Abstract A technic for the study of radioiron absorption and loss is described employing an NaI (T1) crystal-detector whole body counter and 1-10 µc. Fe59 in 250 µg. elemental iron. Changes in whole body Fe59 activity during the first few hours and the next 90-100 days after oral ingestion are described and their significance discussed. Normal absorption with this technic ranges from 5.7-24.7 per cent of the administered tracer. In 14 patients with polycythemia vera, 12 previously phlebotomized and 2 with a recent history of gastrointestinal hemorrhage, iron deficiency as evidenced by increased iron absorption (20.6 per cent-96.9 per cent) correlates well with the extent of preceding phlebotomy, and relatively well with the plasma iron at the time of study. Although other parameters reflect iron deficiency, none correlate well with the absorption of radioiron. Next to increased iron absorption, depletion of iron stores in the marrow seems to be the earliest evidence of iron deficiency. Iron absorption and erythrocyte incorporation of radioiron was also studied in several other hematologic disorders, including four heavily menstruating women, three cases of aplastic anemia, and a small number of other conditions. The findings are described and discussed. Radioiron loss in three normal patients was 0.110 per cent, 0.110 per cent, and 0.182 per cent daily, and in two patients with aplastic anemia 0.103 per cent and 0.173 per cent daily, defining the normal range of tracer loss over days 20-100. Radioiron loss in the polycythemics ranged from 0-0.044 per cent daily. An unusual case of pyridoxine-responsive anemia with increased absorption of radioiron (69.1 per cent), but no red cell incorporation, lost only 0.026 per cent/day. Some problems in the interpretation of such data are discussed. The results demonstrate the effectiveness of the technic of whole body counting in the study of various aspects of iron metabolism.

Estimation of body fat in rats by whole-body counting

1975 ◽  
Vol 39 (1) ◽  
pp. 150-151 ◽  
Author(s):  
A. M. Pommer ◽  
F. L. Lakshmanan
Keyword(s):  
Body Weight ◽  
Body Fat ◽  
Sodium Iodide ◽  
Whole Body ◽  
Adult Rats ◽  
Gravimetric Determination ◽  
Body Counting ◽  
Whole Body Counting

A method for determining body fat in vivo in rats by whole-body counting of 40K is described. The technique utilizes a Nuclear Chicago Corporation TOBOR system with 5-in thallium-activated sodium iodide crystals. To test the method a regression equation was developed using the 40K counts and body weight of young adult rats weighing 333–788 g; the results were compared with those obtained from the gravimetric determination of fat in the carcass. The correlation coefficient between the two methods was 0.945.

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