The Benefit of UHR-CT: Precision of Repeated Volume Measurements of Pulmonary Nodules

Inclusion Criteria: * 18 years of age or older * A solid primary tumour anywhere in the body and solid, noncalcified nodules in the pulmonary parenchyma on previous CT scans suspected for pulmonary metastases, according to radiological reports * Two lung nodules that do not abut vessels or pleura with a two dimensional diameter between 5 and 10 mm within a distance of each other of 16 cm in the craniocaudal direction Exclusion Criteria: * Immobility (not able to stand up and get off the scanner table) * Patients who received local pulmonary treatment: Radiotherapy, Excision, Ablation * Patients with radiologically suspected lymphangitis carcinomatosa or consolidations around the nodules. * Patients who only have calcified pulmonary nodules or nodules that abut vessels or pleura.