focal

(redirected from focal zone)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
See: central
References in periodicals archive ?
Our intention was to investigate the effects of HFJV during SWL using a newer generation lithotripter with a smaller focal zone.
It does not improve lateral resolution in the near field or in the focal zone because it depends on the width of the beam.
of Indianapolis, IN, is capable of killing deep-seated cancer tissue by rapidly elevating the temperature in a precise focal zone, without affecting the intervening tissue, and without side effects such as ionization or radiation.
By focusing sound waves in a targeted area, HIFU can rapidly increase the temperature in the focal zone, causing tissue destruction.
Focus Surgery develops, manufactures and markets image-guided, noninvasive surgical equipment using high intensity focused ultrasound (HIFU), a technology capable of destroying deep-seated tissue by rapidly elevating the temperature in a precise focal zone, without affecting the intervening tissue.