Temporal artery ultrasound versus temporal artery biopsy for giant cell arteritis

Autor: Tejal Magan, Gianni Virgili, Anna L Pouncey, Ersilia Lucenteforte, Patrick Musonda, Geoffrey Yeldham, Usman Jaffer
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Popis: This is a protocol for a Cochrane Review (Diagnostic test accuracy). The objectives are as follows: To determine the diagnostic accuracy of the 'halo sign' on temporal artery ultrasound in people with suspected GCA, using the ACR 1990 Classification as a reference standard. We will consider two tests: 1. triage test before temporal artery biopsy, if temporal artery biopsy is considered: a sensitivity of at least 95% with a minimum specificity of 50% will be required to rule out GCA and avoid biopsy in patients who test positive; a specificity of 95% and a sensitivity of 50% will be required to rule in GCA and refer for biopsy patients who test negative. 2. replacement of temporal artery biopsy as one of the ACR 1990 criteria: this will be achieved if ultrasound shows sensitivity and specificity similar to biopsy.
Databáze: OpenAIRE