Intrafraction motion and impact of margin reduction for MR‐Linac ...

Intrafraction motion and impact of margin reduction for MR-Linac ...

The improved target volume coverage and reduced OAR dose suggest potential for reducing current clinical margins for MR-Linac treatment.

Conclusions. The improved target volume coverage and reduced OAR dose suggest potential for reducing current clinical margins for MR-Linac ...

Intrafraction motion and impact of margin reduction for MR‐Linac ...

The improved target volume coverage and reduced OAR dose suggest potential for reducing current clinical margins for MR-Linac treatment. However ...

Intrafraction motion and impact of margin reduction for MR‐Linac ...

Results Intrafraction motion indicated an average target displacement of 1–3 mm, resulting in an adjusted PTV margin of 2 mm in the right–left ...

Effect of intrafraction adaptation on PTV margins for MRI guided ...

PTV margins for intrafraction motion without 2nd adaptation were 6.4 mm in the anterior direction and 4.0 mm in all other directions for CTVmeso ...

Gating and intrafraction drift correction on a 1.5 T MR-Linac

Dosimetric analysis showed that the active motion management system improved congruence to the planned dose, efficiently mitigating detrimental ...

Quantifying Intrafraction Motion and the Impact of Gating for ...

We hypothesize that the combination of intrafraction tracking/gating along with reduced margins, only available on the MRgRT arm, are predominantly responsible ...

Intrafraction Motion and Margin Assessment for Ethos Online ...

Clinical impact of margin reduction ... Bladder filling in patients undergoing prostate radiotherapy on a MR-linac: The dosimetric impact.

Impact of intrafraction changes in delivered dose of the day for ...

To quantify the dosimetric changes induced by intrafraction motion exhibited between the time of planning and time of delivery, the MRLOC, MRBO, their ...

Clinical application of a sub-fractionation workflow for intrafraction re ...

Intrafraction motion during radiotherapy limits margin reduction and dose escalation. Magnetic resonance (MR)-guided linear accelerators ...

Margin Reduction by Virtual Couch Shift in Prostate SBRT on a 1.5T ...

We treat localized prostate cancer on a 1.5T MR-Linac using plan re-optimization to the anatomy of the day in each fraction. We investigated the efficacy of ...

Intrafraction Motion and Margin Assessment for Ethos Online ...

al.: Clinical impact of margin reduction on ... al.: Bladder filling in patients undergoing prostate radiotherapy on a MR-linac: The dosimetric impact.

Intrafraction Motion and Margin Assessment for Ethos Online ...

When these reduced margins were used in an Ethos workflow without verification imaging, the results were similar but marginally inferior. As seen in Table 3, ...

376: The impact of margin reduction on dose distribution of prostate ...

Background Intrafraction motion during radiotherapy limits margin reduction and dose escalation. Magnetic resonance (MR)-guided linear ...

Intra-fraction motion of pelvic oligometastases and feasibility of PTV ...

Dosimetric constraint violations and GTV coverage were measured as a function of PTV margin size. The impact of intra-fraction motion on GTV ...

Margin Reduction by Virtual Couch Shift in Prostate SBRT on a 1.5T ...

1.5T MR-Linac ... We investigated the efficacy of a 2-stage, clinically available work- flow to reduce intrafraction motion during the 40-minute patient on-couch.

Linac online adaptive radiotherapy for pancreatic cancer treatments

Intrafraction motion and impact of margin reduction for MR‐Linac online adaptive radiotherapy for pancreatic cancer treatments · Abstract · List of ...

[PDF] Intrafraction motion and impact of margin reduction for MR ...

The improved target volume coverage and reduced OAR dose suggest potential for reducing current clinical margins for MR‐Linac treatment. However, it is ...

Simulating an intra-fraction adaptive workflow to enable PTV margin ...

Results: As expected, rectum V18 Gy was reduced by 4.4 ± 3.9%, D1cc was reduced by 12.2 ± 6.8% (3.4 ± 2.3 Gy), while bladder reductions were 7.8 ...

Intrafraction motion tracking for MR-Linac prostate radiotherapy

... intrafraction motion, margin reduction below 4 mm require fast intrafraction plan adaptation methods. ... reduce the effect of intrafraction motion. In ...