Patent ID: 7364574

Claim:
A method for treating a lesion in an animal, said animal having at least one blood vessel that carries blood to said lesion, comprising: (i) locating said blood vessel; (ii) administering a treatment composition comprising a dye and a photodynamic agent selected from the group consisting of hematoporphyrin, an aminolevulinic acid, a porphyrin, a mercocyanine, a porphycene, porfimer sodium, a verteporfin, Photofrin II™, PH-10™, a chlorin, a zinc phthalocyanine, a purpurin, and a pheophorbide, said photodynamic agent being suitable for photodynamic therapy; (iii) after step (ii), applying energy to said blood vessel, of a type and in an amount sufficient to reduce or stop the rate of blood flow through said blood vessel thereby reducing the rate at which said treatment composition exits said lesion; and (iv) irradiating said dye to confirm that the lesion is at least partially filled with said treatment composition; (iv) after step (v), applying energy to said lesion, of a type and in an amount sufficient to excite said photodynamic agent.