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Table 4 Significant dosimetric outcomes observed when comparing 3DSBRT, IMRT, and CK planning techniques

From: Dosimetric and motion analysis of margin-intensive therapy by stereotactic ablative radiotherapy for resectable pancreatic cancer

Organ Parameter Dose 3DSBRT (cGy) Range (cGy) Dose CK (cGy) Range (cGy) Dose MRT (cGy) Range (cGy) p value Superior Modality
L kidney Mean dose 172.7 80-294 148.0 86-249.8 297.3 183.4-410.4 < 0.001 3DSBRT and CK
L renal vessels Mean dose 629.8 101-1431 828.0 178-1585 952.5 104.3-1621.7 < 0.001 3DSBRT
R kidney Mean dose 109.1 50-220 81.5 41-150 217.7 66-429 0.007 3DSBRT and CK
R renal vessels Maximum dose 1508.5 764-2503 1306.7 310-2566 2063.5 981-2984 0.001 3DSBRT and CK
R renal vessels Mean dose 460.6 130-858 622.3 87-2380 909.2 253-1878 0.003 3DSBRT
Celiac trunk Maximum dose 3284.9 1954-3754 3371.9 2880-3904 2958.8 2681-3286 0.007 IMRT
Duodenum Mean dose 509.5 305-745 276.6 106-543 371.2 230-717 < 0.001 CK and IMRT
Duodenum Dose to 5 cc 1108.6 840-1310 779.7 380-1273 845.9 598-1047 0.010 CK and IMRT
Liver Mean dose 108.7 67-178 111.7 42-218 82.1 37-128 < 0.001 IMRT
SMA Maximum dose 3551.0 2754-3815 3572.6 1618-4147 3068.0 1861-3373 0.001 IMRT
SMA Mean dose 2951.8 913-3619 2999.4 859-3905 2745.7 533-3123 0.015 IMRT
Transverse colon Dose to 20 cc 582.9 203-916 408.5 0-844 769.5 454-1134 0.003 CK
Dosimetric value Definition Ratio value Range Ratio value Range Ratio value Range p value Superior Modality
Conformality index Ratio 1.29 1.16-1.50 1.19 1.14-1.23 1.15 1.06-1.18 < 0.001 CK and IMRT