| Io-CEUS | intraoperative contrast-enhanced ultrasound |
| CEUS | contrast-enhanced ultrasound |
| SPN | solitary pulmonary nodule |
| VATS | video-assisted thoracoscopy |
| CCDS | colour-coded Doppler sonography |
| PD | power Doppler |
| CT | computed tomography |
| TTP | time to peak |
| SRI | spectral radiation imaging |
| AUC | area under the curve |