Fig. 1From: Photoacoustic imaging of tumour vascular permeability with indocyanine green in a mouse modelSchematic diagram of the photoacoustic imaging system. Mice were under inhalational anaesthesia (isoflurane, 2% in room air); ICG was injected via the tail vein. The pressure transients produced from chromophores in tissues were scanned by an ultrasound transducer when the tissue was exposed to a pulsed NIR laserBack to article page