Table 2 Intrafraction prostate motion in three directions and 3D vector; a comparison of the present study with previously published data using different systems
From: Determining intrafractional prostate motion using four dimensional ultrasound system
Mean of max prostate shifts (±1SD) [mm] | ||||||||
|---|---|---|---|---|---|---|---|---|
Investigator, year | N (fractions) | System | Time [min] | I(+)/S | L(+)/R | A(+)/P | % 3D vector shift | 3D-vector [mm] |
Lometti et al., 2005 [33] | 11 (133) | MV fluoroscopy: real-time FM tracking | 1 | >2 mm 4 % | 0.7 ± 0.5 | |||
Li HS et al., 2008 [4] | 35 (1267) | Calypso | 12 | 0.3 ± 0.7 | 0.0 ± 0.3 | 0.4 ± 0.6 | ||
Kupelian et al., 2008 [2] | 17 (550) | Calypso | 10 | >3 mm 14 % | ||||
Langen et al., 2008 [18] | 17 (550) | Calypso | 2 | >3 mm 3 % | ||||
Li et al., 2009 [19] | 20 (157) | Calypso | 11.4 | >3 mm 19 % | ||||
Vargas et al., 2010 [29] | 7 (68) | Cine-MRI | 4 | 0.41 ± 1.2 | ||||
Wang et al., 2011 [34] | 29 (1061) | Calypso | 3 | >3 mm 9 % | ||||
Smeenk et al., 2011 [30] | 15 (576) | Calypso | 2.5 | >3 mm 1.4 % | ||||
Ng et al., 2012 [32] | 10 (268) | Real-time kilovoltage FM tracking | 3–4 | >3 mm 5.6 % | ||||
Mayyas et al., 2013 [9] | 8 | Pre- post-treatment kV images | 0.8 ± 2.7 | 0.2. ± 2.1 | −0.3 ± 2.4 | |||
Mayyas et al., 2013 [9] | 19 | Calypso | 0.0 ± 1.5 | 0.0 ± 0.6 | 0.0 ± 1.3 | |||
Tong et al., 2015 [8] | 236 (8660) | Calypso | 2 | >2 mm 13 % | ||||
Choi et al., 2015 [28] | 12 (336) | Transrectal US/3 FMs | 4–5 | 0.6 ± 0.6 | −0.3 ± 0.3 | −0.7 ± 0.6 | >2 mm 11 % | 1.1 ± 0.8 |
Present study | 10 (51) | Clarity real-time TPUS | 2–2.5 | 0.2 ± 0.9 | −0.2 ± 0.8 | −0.2 ± 1.1 | >2 mm 12 % | 0.9 ± 0.6 |