Effect of SnapShot Freeze 2 on Reducing Pulsation Artifacts in Coronary Artery Imaging of Patients With High Heart Rates

26 March 2026 : Clinical Research

Ke Ning^{ACDEF 1}, Liyi He^{BCE 1}, Wenzhao Zhang^{BEG 1*}, Yufeng Qiu^{BE 1}

DOI: 10.12659/MSM.951305

Med Sci Monit 2026; 32:e951305

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Table 3 Analysis of variance for artifact indices of coronary artery segments.

Phase	Reconstruction algorithm	Mean±SD (95% CI)	F	P	Key pairwise difference (Δ [95% CI], P)
Diastolic	No-SSF	55.40±24.67 (51.33–59.47)	25.645	<0.001	No-SSF-SSF=7.23 (2.83–11.63), <0.01;No-SSF-SSF2=17.25 (12.91–21.59), <0.001
	SSF	48.41±21.56 (44.0–52.8)			SSF-SSF2=10.10 (4.21–16.00), <0.001
	SSF2	38.31±17.67 (34.6–42.0)
Systolic	No-SSF	42.77±18.08 (39.54–46.01)	6.959	0.001	No-SSF-SSF=4.26 (0.89–7.63), <0.05;No-SSF-SSF2=8.40 (5.11–11.69), <0.001
	SSF	39.01±17.81 (35.0–43.0)			SSF-SSF2=4.09 (−1.17 to 9.35), =0.19
	SSF2	34.92±16.84 (31.3–38.5)
CI – confidence interval; SD – standard deviation; SSF – SnapShot Freeze; SSF2 – SnapShot Freeze 2.

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