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Measurements of Primary Tumor Response
| No. of Dimensions Measured | Definition of Partial Response | Abbreviation Used in Study |
|---|---|---|
| Single dimension | ≥ 30% reduction in longest diameter | Diam30 |
| Three dimensions | ≥ 50% reduction in volume* | Vol50 |
| Three dimensions | ≥ 65% reduction in volume* | Vol65 |
Volume = (π/6) × antero-posterior (depth) × width × cranio-caudal.
