MR Elastography of the Ocular Vitreous Body
نویسندگان
چکیده
Figure 2. MRE Results. a) Magnitude image of the porcine globe imbedded in a bovine-gelatin substrate. b) Up-down sensitized wave image, showing the mode-conversion of 10-Hz longitudinal waves at the corneoscleral surface and propagation of the resulting shear waves inside the vitreous body. c) Shear stiffness map generated with a local frequency estimation algorithm, yielding an average stiffness of 10 Pa for the vitreous body. Globe Vitreous Body
منابع مشابه
Real-time ultrasound elastographic imaging of ocular and periocular tissues: a feasibility study.
BACKGROUND AND OBJECTIVE This study examines the value of ultrasound elastography for the examination of ocular and periocular structures. SUBJECTS AND METHODS Five patients, aged 22 to 75 years, who each had one blind eye were included. Patients underwent ultrasound elastography of their blind eye and periocular tissues using a 7-13 MHz probe. Strain grayscale and color-coded elastographic m...
متن کاملThe prevalence of ocular diseases among individuals referring to the ocular emergency unit of Moradi Hospital of Rafsanjan, Iran: 2015
Background: The determination of common diseases in a region is a medical and health priority of that region. Ocular emergencies can cause permanent vision loss if they are not recognized and treated promptly. Preserve vision of patients, We arranged this study in Moradi hospital (Kerman, Iran), to estimate our regional situation. Materials and Methods: In this cross-sectional stud...
متن کاملOcular Ultrasonographic Features in Iranian Native Donkey
Objective- The aim of this study was to evaluate ultrasonographic appearance of the normal eye and obtaining reference values of ocular structures in Iranian native donkey. Design- Experimental study. Animals- Five Iranian native donkeys. Procedures- After preparation of the animals, ocular structures were ima...
متن کاملNon-invasive Measurement of Vitreous Humor Stiffness in the Mouse using MR Elastography
Introduction In vivo, non-invasive measurements of the stiffness (elastic modulus) of biological tissue can be performed with magnetic resonance elastography (MRE) [1]. Many studies have illustrated the versatility of MRE; stiffness estimates have been obtained from liver, muscle, breast, brain and heart [2-5]. Tissue health or disease is often indicated by its stiffness. In many cases tissue h...
متن کاملThe Steroid Effect on the Blood-Ocular Barrier Change Induced by Triolein Emulsion as seen on Contrast-Enhanced MR Images
OBJECTIVE The purpose of this study is to evaluate the effect of dexamethasone on the damaged blood-ocular barrier caused by triolein emulsion, using contrast-enhanced MR imaging. MATERIALS AND METHODS An emulsion of 0.1-mL triolein in 20 mL of saline was infused into the carotid arteries of 32 cats, 12 cats were placed in the treatment group and 18 cats were placed in the Control group. Thir...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009