Table 3. GTV coverage with the minimum dose to cover GTV minus 0.01 cc.

The coverage value of a GTV by a minimum dose covering the volume subtracted by 0.01 cc from the GTV (GTV D_{V-0.01 cc}). The coverage rate (%) of a ≥5.00 cc GTV (or ≥99.8% coverage) should be specified to the second decimal place, since 0.1% of the 5.00 and 10.00 cc GTVs are 0.005 and 0.01 cc, respectively. Rounding to the third decimal place for GTVs at approximately 0.005 cc affects whether the GTV is considered approximately 0.01 cc

GTV: gross tumor volume; D_{V-0.01 cc}: a minimum dose to cover a target volume minus 0.01 cc

GTV (cc)	0.20	0.50	1.00	2.50	5.00	7.50	10.00	12.50	15.00	100.00
Coverage (%)	95.0	98.0	99.0	99.6	99.80	99.87	99.90	99.92	99.93	99.99