Assessment the Effectiveness of BTVA in COPD and Ablation in Pulmonary Nodules by Pulmonary MRI

This study is using a special type of MRI to track how well lung ablation treatments work — both for treating small lung cancer nodules and for a lung disease called COPD (chronic obstructive pulmonary disease). The MRI technique may show changes in lung tissue more precisely than standard CT scans. **You may be eligible if...** - You are over 18 years old - You have a lung nodule confirmed as cancer by a pathologist AND are receiving an ablation treatment (radiofrequency, microwave, or freezing), OR - You have COPD and are receiving bronchial steam ablation treatment - You are able to give informed consent **You may NOT be eligible if...** - Your lung nodule is a pure ground-glass nodule type - You have metal implants (like a pacemaker) or claustrophobia that prevent MRI - You have severe heart or lung disease making ablation surgery very risky - You had a severe COPD flare or pneumonia in the past 4 weeks Talk to your doctor to see if this trial is right for you.