Tumors and blood vessels can undergo shifting by inches in the liver, which can make it difficult for surgeons to pinpoint the location of tumors when a patient is on the operating table. The position in which the liver is resting in the body during diagnostic imaging is different from how it is positioned when the patient is laying down during surgery. Patients in New York who have ailments related to an impaired liver may be interested to know that a technology has been created that can locate tumors in the organ, allowing doctors to bypass blood vessels during surgery.