Table 1 Comparison of spatial drift parameters without and with closed-loop control

From: Machine learning-facilitated real-time acoustic trapping in time-varying multi-medium environments toward magnetic resonance imaging-guided microbubble manipulation

Feature Point

FP.1

FP.2

FP.3

FP.4

FP.5

Max. amplitude [mm]

Without control

−3.6, −3.4

6.0, 7.8

−3.2

7.3

−4.0

With control

−2.6, −2.0

6.1, 6.4

−2.1, −1.2

3.1, 2.4, 3.8

−4.6, −5.0, −3.8

FWHM [frame]

Without control

–

11 (W1), 10 (W3)

–

–

12 (W2)

With control

–

6 (W5) 5 (W7)

–

–

6 (W4), 2 (W6)

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