The present invention provides a method of imaging useful in the determination of sites of dysplasia in patients suffering from Barrett's oesophagus. The method comprises the use of an optical imaging agent comprising a vector which targets the extracellular domain of EGFR, the vector also being selective for EGFR over Her2. The vector is labelled with an optical reporter suitable for in vivo imaging using light in the green to near-infrared wavelength 500-1200 nm. Also provided are novel optical imaging agents suitable for use in the method.
本发明提供了一种成像方法,用于确定患有Barrett食管病变的患者中发生异型增生的部位。该方法包括使用包含定向靶向
EGFR细胞外区域的载体的光学成像剂,该载体也具有选择性地靶向
EGFR而不是Her2。该载体标记有适合于使用绿色到近红外波长500-1200 nm的光进行体内成像的光学报告物。还提供了适用于该方法的新型光学成像剂。