U.S. Diagnostic Reference Levels and Achievable Administered Activities for Adult Renal Scintigraphy: An Analysis of the Intersocietal Accreditation Committee Nuclear Laboratories

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FIGURE 1.
Distribution of 182 ^99mTc-MAG3 administered doses. Vertical axis is activity (MBq). Horizontal axis is number of doses. Most values are close to 370 MBq (10 mCi).
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FIGURE 2.
Distribution of 24 ^99mTc-DTPA administered doses. Vertical axis is activity (MBq). Horizontal axis is number of doses. Nearly all fall within 370- to 555-MBq (10–15 mCi) range.
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FIGURE 3.
Box-and-whisker plot comparing minimum, maximum, and quartiles for U.S. ^99mTc-MAG3 and ^99mTc-DTPA administered activities (MBq) along with outliers vs. DRLs from Japan and Europe (^99mTc-MAG3 only).

TABLE 2

Analysis of Administered Activities by Radiopharmaceutical

Facility characteristic	Average	Maximum	Minimum
No. of general NM exams per year*	1,763	9,076	95
No. of genitourinary NM exams per year	86	697	3
Percentage of genitourinary NM of practice	5%	37%	0.50%