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Determination of bone blood supply with /sup 99m/Tc red blood cells and /sup 113m/In transferrin in fractures of femoral neck: concise communication

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:6783515
The uptake of in vivo labeled /sup 99m/Tc RBCs and /sup 113/In transferrin was studied in femoral bone of 21 patients who had recent operations for fracture of the femoral neck. Femoral bone biopsies and blood samples were obtained during the operation. The activity values for bone biopsies, erythrocytes, and serum were determined, and the uptake ratios between bone and erythrocyte cpm/g and between bone and serum were calculated. Biopsy samples were taken from the femoral head in 21 cases and from the trochanteric region in 14. The activity ratios for the two tracers correlated well: r . 0.94 for femoral head biopsies (P less than 0.001) and r . 0.98 for samples from the trochanteric region (P less than 0.001). Thus, the procedures are interchangeable and either may be valuable in assessing bone blood supply. An additional patient, studied only with /sup 99m/Tc RBCs, had a subsequent operation for nonunion of a fracture. Samples of both cancellous and cortical bone were obtained from the removed head. The activity ratios for the two types of bone tissue differed significantly (P . 0.02).
Research Organization:
Sjukhuset, Ostersund, Sweden
OSTI ID:
6783515
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 23:5; ISSN JNMEA
Country of Publication:
United States
Language:
English