Urinary Voiding as a Tool to Reduce Radiation Exposure in the Nuclear Stress Lab

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FIGURE 1.
Patient demographics detailing sex, age, body mass index (BMI), and glomerular filtration rate (GFR).
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FIGURE 2.
Dose reduction measured at level of bladder before and after voiding.

TABLE 1

Outlining Some Current Strategies for Dose Reduction

Dose reduction strategy	Approximated dose reduction
Appropriate patient selection	Significant reduction
Stress-only SPECT imaging	Significant reduction
Solid-state cameras	50% (11,12)
PET (3-dimensional mode of operation with lutetium oxyorthosilicate system)	Significant reduction
Iterative reconstruction	50%–75% (13–16)
Multiple detector systems (17)	Significant reduction
Resolution recovery software	Significant reduction
Collimator (general-purpose collimator acquisition)	50% (18)
Collimators for cardiac imaging (19,20)	Minor
Continuous acquisitions	5% (21)
Voiding	16.9%