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Table 2 Range of artifact size for T1W sequence, y orientation

From: Signal-to-noise ratio evaluation of magnetic resonance images in the presence of an ultrasonic motor

TH (mm) BW Distance from motor (mm)
Minimum Maximum Minimum Maximum
5 12.5–46.4%
(SNR: 87–248)
7.4–46.3%
(SNR: 68–216)
25 45
3 2.3–26.8%
(SNR: 74–143)
2.1–26.4%
(SNR: 50–100)
26 38
1 4.9–18.4%
(SNR: 13–15)
3.4–17.0%
(SNR: 11–13)
26 29