Validation of a multimodal algorithm for diagnosing giant cell arteritis with imaging.

Purpose: The purpose of this study was to identify which combination of imaging modalities should be used to obtain the best diagnostic performance for the non-invasive diagnosis of giant cell arteritis (GCA).

Materials And Methods: This IRB-approved prospective single-center study enrolled participants presenting with a suspected diagnosis of GCA from December 2014 to October 2017. Participants underwent high-resolution 3T magnetic resonance imaging (MRI), temporal and extra-cranial arteries ultrasound and retinal angiography (RA), prior to temporal artery biopsy (TAB).

Diagnosis and Prediction of Relapses in Susac Syndrome: A New Use for MR Postcontrast FLAIR Leptomeningeal Enhancement.

Background And Purpose: Leptomeningeal enhancement can be found in a variety of neurologic diseases such as Susac Syndrome. Our aim was to assess its prevalence and significance of leptomeningeal enhancement in Susac syndrome using 3T postcontrast fluid-attenuated inversion recovery MR imaging.

Materials And Methods: From January 2011 to December 2017, nine consecutive patients with Susac syndrome and a control group of 73 patients with multiple sclerosis or clinically isolated syndrome were included.

[Pigmented perivenous chorioretinal atrophy: Report of two cases].

Pigmented perivenous chorioretinal atrophy is a rare condition, the etiology of which is still unknown, with approximately one hundred cases described in the literature. The lesion is characterized by chorioretinal atrophy with retinal pigment in a bony spicule distribution along the retinal veins. These pigmentations are small round lesions, which are in a pattern similar to the appearance of osteoblastic cells.