the abdomen and kidney tissue treatment is effected by exchanging energy typically delivering heat or extracting heat through a wall of the renal pelvis or by delivering active substances application_number US 201213547486 A description a patient 39 s urinary tract is diagrammatically illustrated in fig1 the urinary tract includes the bladder b which receives urine from the right and left kidneys rk and lk and drains the urine through the urethra uthr the kidneys each receive oxygenated blood through the renal artery ra from the abdominal aorta aa and blood from the kidneys is returned through the renal vein rv to the inferior vena cava ivc of particular interest to the present invention the urine which is processed in the kidney is received in an interior cavity of each kidney referred to as the renal pelvis rp which acts as a funnel and delivers the urine into the top of the ureter urtr the methods and protocols of the present invention will be performed within the interior of the renal pelvis rp in order to treat the renal nerves within the walls of the renal pelvis as well as the nerves surrounding the renal arteries within the adventitia and adipose tissue and to a lesser extent surrounding the renal veins which branch from the main renal artery and renal vein within the tissue of the kidney referring now to fig2 a and 2b the right kidney rk is shown in section to expose the renal pelvis rp and other internal structures of the kidney as shown in fig2.