Salivary Gland Scintigraphy: The Use of Semiquantitative Analysis for Uptake and Clearance

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FIGURE 1.
Reframed dynamic images (1 min per frame) show parotid and submandibular glands. Washout after lemon juice is seen halfway through study (3rd frame of 3rd row).
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FIGURE 2.
(A) Regions of interest drawn around individual salivary glands. (B) Time–activity curves of parotid and submandibular glands. (C) Linear curve fit for right parotid curve from 0 to 240 s. (D) Parametric washout fraction image. Ct = count; Subm = submandibular.

TABLE 1

Age, Sex, Uptake Rate, and Washout Fraction of Patients Studied

Patient no.	Age (y)	Sex	Uptake rate (cps/s)							Washout fraction
						Parotid glands			Submandibular glands			Parotid glands		Submandibular glands
						Right	Left	Right	Left	Right	Left	Right	Left
1	23	M	0.03	0.05	0.03	0.02	1.58	1.47	0.90	0.87
2	33	F	0.19	0.20	0.14	0.16	2.22	1.91	1.21	1.22
3	45	F	0.08	0.09	0.03	0.27	1.08	1.35	1.40	0.52
4	43	F	0.14	0.10	0.06	0.08	0.56	0.51	0.26	0.37
5	27	F	0.05	0.07	0.01	0.10	0.64	0.53	0.23	0.26
6	31	M	0.08	0.07	0.06	0.05	0.96	0.85	0.60	0.66
7	27	F	0.05	0.05	0.48	0.08	0.60	0.44	0.16	0.17
8	41	F	0.23	0.20	0.13	0.11	2.29	1.98	1.88	1.37
9	26	F	0.11	0.21	0.06	0.06	2.44	2.24	1.10	0.89
10	24	F	0.06	0.08	0.06	0.07	0.61	0.28	0.48	0.65
11	41	M	0.06	0.06	0.05	0.06	0.85	0.50	0.22	0.44
12	35	F	0.03	0.03	0.05	0.03	0.96	0.99	1.29	1.22
13	19	F	0.06	0.07	0.08	0.07	1.17	0.75	0.63	0.21
14	43	F	0.17	0.20	0.14	0.09	2.37	2.50	0.97	0.81
15	49	F	0.07	0.08	0.06	0.06	0.93	1.13	0.85	0.87
16	50	F	0.09	0.10	0.09	0.09	1.10	1.41	1.09	1.22
17	45	M	0.10	0.08	0.04	0.03	1.00	1.22	1.08	0.80
18	15	F	0.09	0.61	0.11	0.14	1.25	1.01	1.00	1.14
19	30	F	0.10	0.08	0.03	0.03	0.79	0.88	0.56	0.33
20	33	M	0.10	0.13	0.08	0.06	0.88	1.08	0.77	0.33
21	43	F	0.06	0.08	0.03	0.04	1.02	0.89	0.53	0.59