Method for selective thermal ablation

A method of constructing a transcatheter microwave antenna, further comprising:

• providing a cable with one or more conductors;
• adapting said cable for connection to a microwave power source;
• providing a microwave antenna at one end of said cable;
• providing a layer of fusion material adjacent said microwave antenna, said fusion material being alterable to a second physical state from said first physical state to provide heat of fusion cooling adjacent said catheter during operation of said microwave antenna.

A method for selective thermal ablation of a tissue to be treated while limiting thermal damage to a protected tissue, comprising:

• positioning an energy radiator adjacent to said tissue to be treated such that said protected tissue is between said tissue to be treated and said energy radiator;
• positioning a layer of fusion material between said energy radiator and said protected tissue such that convection transfer of energy may occur between said protected tissue and said layer of fusion material;
• radiating energy from said energy radiator to heat said tissue to be treated;
• limiting temperature rise in said protected tissue by convection transfer of energy between said protected tissue and said fusion material;
• and
• limiting temperature rise in said fusion material by melting said fusion material from a first physical state to a second physical state due to said convection transfer of energy between said protected tissue and said fusion material.

A method for selective thermal ablation of a tissue to be treated while limiting thermal damage to a protected tissue, comprising:

• positioning fusion material adjacent said protected tissue to permit convection transfer of energy between said fusion material and said protected tissue, said fusion material having a melting point near to or lower than body temperature;
• radiating energy through said fusion material;
• radiating energy through said protected tissue;
• and
• radiating energy into said tissue to be treated.

A computer program for controlling a simulated microwave antenna for simulated radiation of a biological tissue, comprising:

• providing at least one antenna characteristic for said simulated microwave antenna;
• providing at least one tissue characteristic into which microwave energy is deposited;
• and
• providing at least one cooling characteristic of cooling substances through which microwaves are transmitted.

A computer program for controlling a simulated microwave antenna for radiation of a biological tissue, comprising:

• providing at least one antenna characteristic for said simulated microwave antenna;
• providing at least one tissue characteristic into which microwave energy is deposited;
• providing at least one power level for operation of said simulated microwave antenna;
• providing at least one frequency of operation of said simulated microwave antenna;
• and
• providing a delivery time of operation of said simulated microwave antenna.