Equation 4 above (which does not take into consideration the presence of contrast material) was used for this calculation.
上述方程4（未考虑造影剂的存在）被用于这项计算。
来源：Effects of contrast material on computed tomographic measurements of lung volumes in patients with acute lung injury段 oanc-c370508a7d3ee77cec40c27a:p29s3OANC-1.0.1 UTF-8 (datasets-2026-09-25); source file OANC/data/written_2/technical/biomed/cc1852.anc. OANC unrestricted-use terms: https://anc.org/data/oanc/
