Comparison of Five Parathyroid Scintigraphic Protocols

Table 4

The false-positive findings for all physicians.

Image set	1				2				3				5				Reason for FP	% of FP
Patient number	Physician				Physician				Physician				Physician
	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4
2					RL								RL				Uneven iodine uptake	55
3	RL	RL	RL	RL	RL		RL	RL					RL		RL	RL
8					RU	RU
22	RU	RU			RU	RU	RU	RU					RU	RU
20	RL	RL	RL	RL	RL	RL	RL	RL									Bone uptake	20
4													LL				Edge effect	10
10														LL
24													RU	RU
24									LL								Other	15
24	RL					RL			RL
13										LU
19									LL
% of FP	27.5				37.5				10				25

FP: false positive, RU: right upper, RL: right lower, LU: left upper, and LL: left lower.