Article Figures & Data
Figures
- FIGURE 1.
ROIs used for I/D ratio calculation.
- FIGURE 2.
Dual-phase images from patient diagnosed with bilateral hyperplasia confirmed by histopathology after subtotal parathyroidectomy.
- FIGURE 3.
Dual-phase images from patient with nuclear medicine diagnosis of left inferior adenoma that was confirmed by pathology after left inferior excision.
- FIGURE 4.
Typical benign dual-phase 99mTc-MIBI parathyroid images.
- FIGURE 5.
I/D thyroid ratios for benign parathyroid, hyperplasia, and adenoma.
- FIGURE 6.
Average I/D ratios of thyroid region for benign parathyroid, hyperplasia, and adenoma.
- FIGURE 7.
Plot of I/D imaging time interval vs. calculated I/D thyroid ratio. Line represents line of best fit having equation y = 0.3824x + 1.916 (r2 = 0.0247).
Tables
Disease I/D ratio Benign ≫1 Hyperplasia >1 <Benign Adenoma >1 >Hyperplasia <Benign - TABLE 2
Average I/D Ratios for Thyroid, Left and Right Lobe Regions Grouped for Benign, Hyperplasia, and Adenoma Groups
Thyroid I/D ratio Benign 3.10 ± 0.77 Hyperplasia 2.26 ± 0.68 Adenoma 2.80 ± 0.95 Results are expressed as average ± 1 SD.
I/D ratio P Benign vs. hyperplasia 0.020 Benign vs. adenoma 0.381 Hyperplasia vs. adenoma 0.033
