Research Article

Quantitative Scintigraphy Evaluated the Relationship between 131I Therapy and Salivary Glands Function in DTC Patients: A Retrospective Analysis

Table 4

Comparison of salivary gland function in patients before fourth treatment.

Scintigraphy parametersMale group before fourth treatment number: 6Female group before fourth treatment number: 8
Before treatmentAfter first treatmentAfter second treatmentAfter third treatmentBefore treatmentAfter first treatmentAfter second treatmentAfter third treatment

RP
UF0.054 (0.024–0.072)0.072 (0.035–0.089)0.051 (0.025–0.077)0.052 (0.015–0.076)0.8960.047 (0.043–0.056)0.032 (0.031–0.046)0.033 (0.018–0.037)0.010 (0.009–0.042)0.013
VI-III 1.000 VI-II.231 VI-I .011 III-II 1.000 III-I .231 II-1 1.000

UI2.237 (1.492–2.725)2.3137 (1.691–3.522)2.252 (1.425–3.257)2.127 (1.323–2.668)0.7062.371 (1.860–2.885)1.690 (1.537–2.151)1.388 (0.808–1.844)0.707 (0.529–1.887)0.003
VI-III 1.000 VI-II0.317 VI-I .003 III-II 1.000 III-I 0.040 II-1 0.728

EF0.485 (0.330–0.559)0.542 (0.460–0.705)0.458 (0.364–0.547)0.403 (0.004–0.548)0.2040.543 (0.500–0.567)0.478 (0.439–0.487)0.158 (0.023–0.446)0.050 (0.022–0.407)0.001
VI-III 1.000 VI-II0.071 VI-I .006 III-II 0.199 III-I 0.022 II-1 1.000

LP
UF0.040 (0.035–0.065)0.052 (0.039–0.067)0.041 (0.029–0.070)0.031 (0.010–0.045)0.8490.041 (0.035–0.050)0.035 (0.027–0.048)0.033 (0.026–0.044)0.025 (0.018–.035)0.034
VI-III 0.137 VI-II 0.231 VI-I 0.043 III-II 1.000 III-I 1.000 II-1 1.000

UI1.958 (1.661–2.357)2.3628 (1.468–2.616)1.623 (1.307–3.080)1.675 (1.213–1.995)0.9782.051 (1.765–2.396)1.684 (1.534–2.175)1.635 (0.963–2.104)1.576 (0.472–2.029)0.010
VI-III 1.000 VI-II 1.000 VI-I .040 III-II 1.000 III-I 0.012 II-I0.317

EF0.515 (0.480–0.589)0.487 (0.385–0.575)0.419 (0.216–0.548)0.287 (0.047–0.48)0.0380.475 (0.454–0.526)0.445 (0.297–0.485)0.411 (0.031–0.501)0.429 (0.016–0.518)0.522
I-III 1.000 VI-II 1.000 VI-I 0.044 III-II 1.000 III-1 0.152 II-1 1.000

RS
UF0.053 (0.040–0.064)0.057 (0.036–0.076)0.050 (0.030–0.067)0.040 (0.014–0.076)0.2840.052 (0.041–0.059)0.039 (0.035–0.048)0.043 (0.035–0.054)0.037 (0.030–0.044)0.021
VI-III .043 VI-II .586 VI-I .043 III-II 1.000 III-I 1.000 II-1 1.000

UI2.147 (1.884–2.778)3.041 (2.015–3.985)2.703 (1.927–3.185)2.726 (1.660–4.742)0.5722.988 (2.479–3.495)2.465 (2.125–3.067)2.649 (2.306–2.857)2.447 (2.239–2.601)0.119
EF0.386 (0.338–0.444)0.352 (0.246–0.471)0.394 (0.315–0.466)0.422 (0.181–0.475)0.9400.437 (0.373–0.455)0.282 (0.254–0.352)0.284 (0.218–0.405)0.348 (0.143–0.437)0.010
VI-III 1.000 VI-II 1.000 VI-I 0.317 III-II 1.000 III-I0.040 II-1 0.012

LS
UF0.052 (0.044–0.056)0.045 (0.043–0.078)0.054 (0.041–0.063)0.045 (0.015–0.070)0.8490.049 (0.042–0.056)0.042 (0.030–0.047)0.042 (0.034–0.049)0.037 (0.030–0.040)0.392
UI2.605 (1.676–3.068)3.420 (2.807–3.783)3.023 (2.450–3.487)2.904 (2.145–3.613)0.7062.550 (2.338–3.107)2.620 (1.897–3.204)2.666 (2.135–3.045)2.472 (2.344–2.949)0.789
EF0.397 (0.350–0.456)0.371 (0.255–0.427)0.420 (0.297–0.504)0.376 (0.166–0.453)0.3920.332 (0.269–0.407)0.289 (0.259–0.355)0.274 (0.194–0.405)0.327 (0.129–0.415)0.327

UF, UI, EF stated as median (upper quartile, lower quartiles). Examination before first, second, and third treatments expressed as I, II, III, and IV. The values were values after pairwise comparison of I, II, III, IV. RP: Right parotid; LP: Left parotid; RS: Right submandibular; LS: Left submandibular; UF: Uptake fraction; UI: Uptake index; EF: Excretion fraction.