Survey Results
Parameter | Number | Percentage |
---|---|---|
Surveys sent | 350 | |
Surveys returned | 165 | 47.1 |
1. Radionuclide routinely used for thyroid imaging | ||
123I | 117 | 70.9 |
99mTc (pertechnetate) | 41 | 24.8 |
Both 123I and 99mTc | 6 | 3.6 |
131I | 1 | 0.6 |
2. Routine dose administered | ||
123I | ||
100–199 μCi | 11 | |
200–299 μCi | 85 | |
300–399 μCi | 9 | |
400–499 μCi | 1 | |
500–599 μCi | 2 | |
99mTc (pertechnetate) | ||
5 mCi | 3 | |
7 mCi | 1 | |
8 mCi | 1 | |
10 mCi | 28 | |
10–15 mCi | 2 | |
20 mCi | 1 | |
0.4–0.5 mCi | 2 | |
Did not answer | 20 | |
3. Neck positioning | ||
Neck hyperextended | 142 | 86.1 |
Patient supine with neck extended but not hyperextended | 13 | 7.9 |
Did not answer | 10 | 6.1 |
4. Fasting required | ||
Yes | 67 | 40.6 |
1–3 h | 10 | 15 |
4–6 h | 30 | 45 |
7–9 h | 2 | 3 |
Overnight | 22 | 33 |
No | 98 | 59.4 |
5. History taken | ||
Yes | 163 | 98.8 |
No | 2 | 1.2 |
6. Views routinely taken | ||
Anterior view | 162 | |
1 anterior view without markers | 37 | 22.8 |
1 anterior view with markers | 13 | 8 |
2 anterior views: 1 with and 1 without markers | 112 | 69.1 |
Oblique views in addition to the anterior view | 151 | 93 |
Right and left anterior oblique without markers | 149 | |
Right and left anterior oblique with markers | 2 | |
Did not answer | 3 | |
7. Method used to acquire anterior view image* | ||
Clinics using 123I | ||
Counts reported | ||
20,000–49,000 | 11 | |
50,000–74,000 | 22 | |
75,000–99,000 | 1 | |
100,000–149,000 | 18 | |
150,000–199,000 | 2 | |
200,000–300,000 | 2 | |
300,000+ | 0 | |
Time reported | ||
5 min | 22 | |
7 min | 1 | |
8 min | 6 | |
10 min | 50 | |
15 min | 5 | |
20 min | 3 | |
Other | 5 | |
Answered only counts or time | 84 | |
Answered both counts and time | 33 | |
Clinics using 99mTc | ||
Counts reported | ||
20,000–49,000 | 0 | |
50,000–74,000 | 1 | |
75,000–99,000 | 0 | |
100,000–149,000 | 3 | |
150,000–199,000 | 6 | |
200,000–300,000 | 10 | |
300,000+ | 8 | |
Time reported | ||
5 min | 12 | |
10 min | 5 | |
15 min | 0 | |
20 min | 0 | |
Other | 3 | |
Did not answer | 2 | |
Answered only counts or time | 30 | |
Answered both counts and time | 11 | |
8. Method used to size gland | ||
Yes | 72 | 43.6 |
No | 93 | 56.4 |
9. Collimator used for imaging | ||
Pinhole | 107 | 64.8 |
Parallel-hole | 42 | 25.5 |
Both | 16 | 9.7 |
10. Neck palpated for correlation with scan | ||
Yes | 67 | 40.6 |
No | 98 | 59.4 |
↵* Many responses included count and time—whichever came first.