Mild hypercalcemia: an indication to select 4-dimensional computed tomography scan for preoperative localization of parathyroid adenomas

Abstract Background Technetium sestamibi scanning is the most accepted method of imaging used for preoperative localization of parathyroid adenomas. Four-dimensional computed tomography (4D-CT) scanning is a relatively new localization technique that has not been as rigorously evaluated. Methods One...

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Veröffentlicht in:The American journal of surgery 2011-03, Vol.201 (3), p.334-338
Hauptverfasser: Eichhorn-Wharry, Laura I., M.D, Carlin, Arthur M., M.D., F.A.C.S, Talpos, Gary B., M.D., F.A.C.S
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Sprache:eng
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Zusammenfassung:Abstract Background Technetium sestamibi scanning is the most accepted method of imaging used for preoperative localization of parathyroid adenomas. Four-dimensional computed tomography (4D-CT) scanning is a relatively new localization technique that has not been as rigorously evaluated. Methods One hundred thirty-five consecutive patients who underwent preoperative sestamibi scanning, 4D-CT scanning, and parathyroidectomy for primary hyperparathyroidism were evaluated. Patient characteristics, parathyroid gland weights, and the probability of having positive preoperative localization were examined. Results Four-dimensional computed tomography scanning was significantly more accurate than sestamibi (73% vs 62%, P = .016). In those with serum calcium levels less than 10.8 mg/dL, 4D-CT scanning was significantly more accurate than sestamibi scanning for the quadrant (45% vs 29%, P = .013) and hemisphere (66% vs 48%, P = .012). Also, 4D-CT scanning was more accurate among patients with parathyroid gland weights less than 500 mg (69% vs 45%, P < .001). Conclusions Four-dimensional computed tomography scanning provides better preoperative localization than sestamibi scanning, particularly in patients with mild hypercalcemia and smaller parathyroid adenomas.
ISSN:0002-9610
1879-1883
DOI:10.1016/j.amjsurg.2010.08.033