On UVA, GTV ≥ 30 cm 3 ( p = 0.038), and PTV ≥ 150 cm 3 ( p = 0.010) were associated with an absolute drop in platelet count by ≥50,000/mm 3 within six weeks of SBRT, while prior focal liver treatment ( p = 0.097) showed a trend toward significance.
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Dynamic Tumor Tracking (DTT) for Hepatocellular Carcinoma Using the Vero4DRT Gimbaled Linac Stereotactic Body Radiation Therapy (SBRT) System.
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Underlying viral cirrhosis ( p = 0.033), A6 or higher pre-SBRT Child–Pugh score ( p = 0.010), and pre-SBRT platelet count <100,000/mm 3 ( p = 0.017) were significant for a rise in Child–Pugh score of 2 points or more, and the volume of liver-GTV <1000 cm 3 ( p = 0.093) approached significance.