Seung Shin Hahn, MD

To evaluate the impact of four-dimensional CT (4D-CT) reconstruction methods on lung tumor volume estimation and apparent tissue density under respiratory motion using dynamic phantoms with diverse geometries.

Patients with head and neck (H&N) cancer frequently require percutaneous endoscopic gastrostomy (PEG) tube placement to maintain adequate nutrition during treatment. Current PEG placement decisions are primarily based on patient-specific clinical factors, alt...