Fig. 1From: Preoperative spirometry and BMI in deep inspiration breath-hold radiotherapy: the early detection of cardiac and lung dose predictors without radiation exposureThe measurements description of spirometry. IRV: inspiratory reserve volume, TV tidal volume, ERV: expiratory reserve volume, VC: vital capacity, RV: reserve volume, FEV1: forced expiratory volume in 1Â s, FVC: forced vital capacityBack to article page