From: The determination of the optimal threshold on measurement of thyroid volume using quantitative SPECT/CT for Graves' hyperthyroidism
Ultrasound
Planar imaging
SPECT/CT 25% threshold automatic delineation
Volume (mL)
31.68 ± 15.04
39.64 ± 15.26
32.73 ± 15.12a
F
3.267
P
 < 0.05