An apparatus for the enhancement of the efficiency of an ablation procedure which comprises: (a) a microwave energy source; (b) a susceptor being a dielectric material configured to concentrate the electric field component of the energy into the affected tissue to be treated and to increase selectively the temperature of said affected tissue; (c) a means to transmit said microwave energy from said source through a shaft into affected tissues and control said microwave energy in said affected tissues; (d) a means simultaneously with said transmission of said microwave energy to deliver the susceptor into said affected tissues, the susceptor being delivered into said affected tissues through a conduit located in the very centre of the microwave energy transmitting shaft; (e) a means to monitor in real-time the electric field resulting from said simultaneous transmission of said microwave energy and said delivery of said susceptor into said affected tissues; (f) a means to monitor and control in real-time the delivery and quantity of said susceptor into said affected tissues; (g) a means to monitor and control in real-time the temperature rise from said simultaneous transmission of said microwave energy into and said controlled delivery of said susceptor into said affected tissues so as to maintain the temperature of said affected tissues and said susceptor in said affected tissues higher than the temperature of surrounding tissues; and (h) a means to respond and control in real-time the simultaneous exposure of said affected tissues to said electric field, said susceptor and said increased temperature to thereby ablate, remove, coagulate or otherwise alter said affected tissues. (a) a microwave energy source; (b) a susceptor being a dielectric material configured to concentrate the electric field component of the energy into the affected tissue to be treated and to increase selectively the temperature of said affected tissue; (c) a means to transmit said microwave energy from said source through a shaft into affected tissues and control said microwave energy in said affected tissues; (d) a means simultaneously with said transmission of said microwave energy to deliver the susceptor into said affected tissues, the susceptor being delivered into said affected tissues through a conduit located in the very centre of the microwave energy transmitting shaft; (e) a means to monitor in real-time the electric field resulting from said simultaneous transmission of said microwave energy and said delivery of said susceptor into said affected tissues; (f) a means to monitor and control in real-time the delivery and quantity of said susceptor into said affected tissues; (g) a means to monitor and control in real-time the temperature rise from said simultaneous transmission of said microwave energy into and said controlled delivery of said susceptor into said affected tissues so as to maintain the temperature of said affected tissues and said susceptor in said affected tissues higher than the temperature of surrounding tissues; and (h) a means to respond and control in real-time the simultaneous exposure of said affected tissues to said electric field, said susceptor and said increased temperature to thereby ablate, remove, coagulate or otherwise alter said affected tissues. <EOS>