Comparison of Five Parathyroid Scintigraphic Protocols

Table 6

The mean gland size of false-negative and true-positive findings for all physicians and all image sets.

	Image set
	1	2	3	4	5
Smallest gland visualized	260	260	420	550	260
Mean weight of FN (mg)	300	420	485	420	300
Mean weight of TP (mg)	560	570	960	830	560
𝑃 (FN versus TP)	0.002	<0.001	0.046	0.026	<0.001