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 |
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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. |
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ISSN: | 0002-9610 1879-1883 |
DOI: | 10.1016/j.amjsurg.2010.08.033 |