Table 2. Differences in ^99mTc-pyrophosphate scintigraphy acquisition parameters between ASNC* and TSOC/SNMROC consensus recommendations.

	TSOC and SNMROC recommendations	2019 ASNC practice points recommendations*
Imaging procedure
Dose of 99mTc-PYP	• Recommended: 20 mCi for 3-hour acquisition	• 10-20 mCi
	• Adjust according to different models of instrument
Time interval between injection and acquisition	• Recommended: 3-hour planar and SPECT	• Recommended: 1-hour planar and SPECT
	• Optional: 1-hour planar	• Optional: 3-hour SPECT or planar
Imaging parameters
Matrix	• Recommended: 128 × 128 for SPECT	64 × 64 minimum
	• Required: 64 × 64 minimum for SPECT
	• 256 × 256 for planar
Planar imaging specific parameters
Detector configuration	180 degrees	90 degrees
Magnification	1.45-1.5	1.46
SPECT imaging specific parameters
Number of views/detector	32-64	40

ASNC, American Society of Nuclear Cardiology; ECG, electrocardiography; mCi, millicurie; PYP, pyrophosphate; SNMROC, Society of Nuclear Medicine of the Republic of China; SPECT, single-photon emission computed tomography; TSOC, Taiwan Society of Cardiology.

* Source: Dorbala S, et al. 2019 ASNC Practice Points.²⁶