View clinical trials related to Head and Neck Lymph Node.
Filter by:This trial studies how well photoacoustic imaging works in measuring tumors and normal tissue in patients with head and neck cancer. Photoacoustic imaging (PAI) is a low-risk imaging method that provides information about the oxygenation of tissues using a combination of light and ultrasound techniques. This study may help doctors determine if PAI is correlated with clinical responses of both tumor (for example: shrinking, swelling or disappearing) and normal tissues (for example: skin redness, dry mouth, appearance of sores, healing of skin or mucosa). If there is a correlation with clinical responses, then doctors may develop PAI as method for measuring response to earlier treatment.