Imaging vitreous

Ultrasound imaging velocimetry of the human vitreous.

Knowledge of vitreous motion in response to saccades is a prerequisite for understanding vitreous rheology. Purpose of present paper is to introduce Ultrasound Image Velocimetry of the human eye, measure scleral and vitreous velocity fields and test the reproducibility of the proposed technique. Twelve patients with varying diagnosis underwent Ocular Dynamic Ultrasound; scleral angular velocity...

Persistent Hyperplastic Primary Vitreous: Ultrasound and Magnetic Resonance Imaging Findings

Human vitreous: MR imaging of oxygen partial pressure.

PURPOSE To develop a magnetic resonance (MR) imaging approach to noninvasively image quantitative Po(2) in the human vitreous. MATERIALS AND METHODS Human studies were approved by the institutional review board with informed consent obtained from all subjects and were HIPAA compliant. Animal studies were performed with animal care committee approval. An MR imaging method to measure the longit...

Assessment of vitreous haze using ultra-wide field retinal imaging

BACKGROUND Conventional fundus imaging has been used to assess vitreous haze (VH) in patients with uveitis. Ultra-wide field (UWF) retinal imaging that uses scanning laser technology has not been evaluated for the detection of VH. This pilot study evaluates the ability of UWF imaging in detecting VH. Patients with intermediate, posterior, or panuveitis were examined to assess the level of VH us...

Persistent hyperplastic primary vitreous: magnetic resonance imaging and clinical findings.

BACKGROUND This study presents magnetic resonance imaging (MRI) findings of both the anterior and posterior types of persistent hyperplastic primary vitreous (PHPV) to facilitate the differential diagnosis from other intraocular abnormalities. METHODS Seventeen patients with PHPV who were evaluated using non-contrast and contrast-enhanced T1- and T2-weighted images were retrospectively review...