We do have several minimum requirements for the plan and dose you will create and upload beyond what is specified in the plan study instructions.
- We require that dose grid resolution be 3 mm or less spacing in all dimensions (i.e., 4 mm grids are too coarse to give accurate DVH curves). In some cases (e.g., very small target or OAR volumes), we might require even higher resolution, but we will put that into the plan-specific instructions.
- The size of the dose grid extents, which is the bounding box inside of which you will calculate dose, must cover all of the critical anatomy. However, it need not cover all of the CT images, and truncating down to critical anatomy might cut down on the size of the RT Dose file and speed up the uploading and calculation of your score.
- Unless otherwise stated, all ProKnow plan studies require that heterogeneity corrections are used along with modern, high-quality dose calculation algorithms.
- Use your judgment and do not create any impractical treatment plan designs. VMAT plans should typically use three arcs or fewer (unless it's a hypo-fractionated plan and the TPS has MU limits per beam), IMRT should use 9 unique beam geometries or fewer, and Tomotherapy plans should not exceed a conventional delivery time for the stated dose/fraction (i.e. no unrealistic pitch settings). CyberKnife delivery will take longer so if you are a CyberKnife user, do not exceed normal tolerances. These beam number limits are only guidelines, and practical limits can vary from study to study. You should rely on your own clinical practice to determine what is a reasonable plan.