LOGIQ E9 Shear Wave Elastrography for Detection of Liver Fibrosis in Patients with Chronic Hepatitis C Virus.

Objectives: Shear wave elastography (SWE) is an emerging technology that assesses hepatic fibrosis. The aim of our study was to determine the diagnostic accuracy of General Electric (GE) Healthcare's LOGIQ E9 SWE in patients with chronic hepatitis C virus using liver biopsy as the reference standard.

Methods: The liver stiffness of 43 subjects with hepatitis C virus was assessed using LOGIQ E9 SWE immediately before they underwent liver biopsy.

Placebo and naloxone can alter post-surgical pain by separate mechanisms.

The discovery of an endogenous opioid-mediated analgesic system has led to the search for its physiological roles and how it might be activated in natural conditions. Environmental and surgical stress and certain forms of transcutaneous electrical stimulation or acupuncture appear to activate this system. Several studies also suggest that this opioid system mediates placebo analgesia.