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1.
Figure 3

Figure 3. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

The CI versus level of intensity modulation for all the DASSIM-RT, IMRT, and VMAT plans. (a) HN case; (b) pancreas case; (c) lung case.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.
2.
Figure 1

Figure 1. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

Schematic plot of DASSIM-RT, conventional IMRT, and VMAT in terms of the number of beams and level of intensity modulation. DASSIM-RT completes the phase space extended by interbeam and intrabeam modulation for radiation therapy.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.
3.
Figure 4

Figure 4. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

Estimated dose delivery time with respect to the number of beams and level of intensity modulation for a treatment plan of 600 MU per fraction and a constant dose rate of 1400 MU/min.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.
4.
Figure 6

Figure 6. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

The CI versus estimated dose delivery time for all the DASSIM-RT, IMRT, and VMAT plans. (a) HN case; (b) pancreas case; (c) lung case. For ease of illustration, data points with estimated dose delivery time greater than 18 min are not shown.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.
5.
Figure 5

Figure 5. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

Estimated dose delivery time with respect to dose rate for an IMRT plan and two DASSIM-RT plans in the HN case. The IMRT plan with 7 beams and 10 intensity levels and the DASSIM-RT plan with 15 beams and 5 intensity levels take about the same amount of delivery time at all dose rates.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.
6.
Figure 2

Figure 2. From: Bridging the gap between IMRT and VMAT: Dense angularly sampled and sparse intensity modulated radiation therapy.

DVHs of a DASSIM-RT plan with 15 beams and 5 intensity levels (thick solid lines), an IMRT plan with 7 beams and 10 intensity levels (dashed lines), and a 2-arc VMAT plan (thin solid lines). (a) HN case; (b) pancreas case; (c) lung case. Target coverage is similar for all plans. The DASSIM-RT plan has better (and slightly better) organ sparing than IMRT (and VMAT) in all cases.

Ruijiang Li, et al. Med Phys. 2011 September;38(9):4912-4919.

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