Table 7 Summary of administered activity forTc-99 m Tetrofosmin in SPECT.

From: Diagnostic reference level, achievable dose, and effective dose estimation in adult hybrid SPECT myocardial perfusion imaging in Institut Jantung Negara

MPI protocol

Injection

Administered dose MBq (mCi)

p-value

Mean ± Std dev

Minimum

Maximum

AD

DRL

One-day (n = 676)

1st

250.02 ± 90.95

(6.76 ± 2.46)

148.00

(4.00)

721.50

(19.50)

240.50

(6.50)

263.63

(7.13)

< 0.001a

2nd

696.98 ± 153.26

(18.84 ± 4.14)

444.00

(12.00)

1221.00

(33.00)

691.90

(18.70)

777.93

(21.03)

Two-day (n = 61)

1st

985.93 ± 359.15

(26.65 ± 9.71)

200.17

(5.41)

1472.60

(39.80)

1106.30

(29.90)

1239.50

(33.50)

2nd

942.21 ± 362.11

(25.47 ± 9.79)

185.00

(5.00)

1443.00

(39.00)

1073.00

(29.00)

1221.00

(33.00)

  1. *a – Independent t-test.
  2. The unit is displayed for both MBq (SI unit for radioactivity) and mCi.
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