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Ophthalmic ultrasound

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https://www.readbyqxmd.com/read/29726988/validation-of-noninvasive-absolute-intracranial-pressure-measurements-in-traumatic-brain-injury-and-intracranial-hemorrhage
#1
Jenny C Kienzler, Rolandas Zakelis, Sabrina Bäbler, Elke Remonda, Arminas Ragauskas, Javier Fandino
BACKGROUND: Increased intracranial pressure (ICP) causes secondary damage in traumatic brain injury (TBI), and intracranial hemorrhage (ICH). Current methods of ICP monitoring require surgery and carry risks of complications. OBJECTIVE: To validate a new instrument for noninvasive ICP measurement by comparing values obtained from noninvasive measurements to those from commercial implantable devices through this pilot study. METHODS: The ophthalmic artery (OA) served as a natural ICP sensor...
May 3, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29702077/phosphosulindac-is-efficacious-in-an-improved-concanavalin-a-based-rabbit-model-of-chronic-dry-eye-disease
#2
Robert A Honkanen, Liqun Huang, Gang Xie, Basil Rigas
Dry eye disease (DED), an inflammatory disease of the ocular surface, affects 15% of humans worldwide. No satisfactory treatment exists for DED partly because of the lack of informative animal models of this disease. We evaluated the anti-inflammatory phosphosulindac (PS) for the treatment of DED using a new rabbit model of chronic DED. In this model, based on the concanavalin A (Con A) acute DED model, we injected all lacrimal glands with Con A 3 times weekly under ultrasound guidance, which prolonged DED to >3 weeks, and used concurrently 4 parameters of efficacy: tear break-up time (TBUT), tear osmolarity, Schirmer test, and tear lactoferrin levels, making efficacy assessment robust...
April 10, 2018: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29686784/primary-malignant-melanoma-of-the-lung-a-case-report-of-a-rare-tumor-and-review-of-the-literature
#3
Muharrem Yunce, Stephen Selinger, William Krimsky, Daniel P Harley
Primary malignant melanoma of the lung (PMML) is a rare malignancy that exhibits aggressive behavior and has a very poor prognosis. We are reporting on a case of PMML in an otherwise healthy 22-year-old Caucasian male with no significant past medical history and an unremarkable family history. The patient initially presented with a 2-month history of a cough and an unexplained 22-lb weight loss. His initial chest X-ray demonstrated opacification of the right lower lobe (RLL) of his lung and a subsequent computerized tomography scan (CT scan) of his lung revealed a large mass occupying most of his RLL (Figure 1)...
2018: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29643786/association-of-optic-nerve-head-drusen-with-best-vitelliform-macular-dystrophy-a-case-series
#4
Robert J White, Daniel J Watson, Dara D Koozekanani, Sandra R Montezuma
Purpose: To report the association of optic nerve head (ONH) drusen with Best vitelliform macular dystrophy (BVMD). Methods: Chart review. Patients: Five patients from 3 families. Results: Multimodal imaging and ophthalmic examination demonstrated findings consistent with ONH drusen, in association with BVMD, in 5 patients. Conclusion: We report the association of BVMD with ONH drusen in 5 patients...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29613981/phacomorphic-angle-closure-following-silicone-oil-tamponade-in-a-pediatric-patient
#5
Victoria C Leung, Simon Fung, Rajeev Muni, Asim Ali
PURPOSE: To report a case of phacomorphic glaucoma following retinal detachment repair with silicone oil in a pediatric patient. STUDY DESIGN: Case report. METHODS: A chart review was conducted at St. Michael's Hospital and The Hospital for Sick Children (Toronto, Canada), where the patient received ophthalmic care from July 28, 2015 onwards. RESULTS: A 14 year-old boy with a history of traumatic retinal detachment and proliferative vitreoretinopathy in the left eye, requiring two pars plana vitrectomies, membrane peel, and silicone oil tamponade, presented with one-day history of decreased vision in the left eye, severe headache, nausea, and vomiting...
April 2, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29582811/application-of-high-intensity-focused-ultrasound-for-treatment-of-open-angle-glaucoma-in-indian-patients
#6
Nilanjana Deb-Joardar, Kasu Prasad Reddy
Purpose: The aim of this study is to assess the efficacy of ultrasound cycloplasty (UCP) in Indian patients with open angle glaucoma (OAG). Methods: A prospective interventional study was designed to treat 73 eyes of 73 patients with OAG with the EyeOP1 device equipped with six miniaturized cylindrical piezoelectric transducers. Two treatment protocols of ultrasound delivery depending on exposure time (8 s and 10 s of shot per transducer) were used. Complete ophthalmic examination, ocular biometry and anterior segment optical coherence tomography were performed preoperatively and patients were followed up at day 1, day 7 and months 1, 2, 3, 6, and 12...
April 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29492841/a-survey-of-ocular-ultrasound-abnormalities-in-horse-145-cases
#7
Rodolfo Gialletti, Andrea Marchegiani, Tiziana Valeriani, Sara Nannarone, Francesca Beccati, Alessandro Fruganti, Fulvio Laus
PURPOSE: To describe the association of clinical and ultrasonographic (US) findings in horses affected by visual impairments, to estimate the most frequent ultrasonographic alteration as well importance and limits of US as a part of ophthalmic evaluation in equine patients. METHODS: One-hundred-forty-five horses referred to the Veterinary Teaching Hospitals of the University of Perugia and Camerino for ocular problems were submitted to ophthalmic examination and ocular ultrasound...
March 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29492541/volumetric-ophthalmic-ultrasound-for-inflight-monitoring-of-visual-impairment-and-intracranial-pressure
#8
Aaron Dentinger, Michael MacDonald, Douglas Ebert, Kathleen Garcia, Ashot Sargsyan
OBJECTIVE:  The objective is enhanced ophthalmic ultrasound imaging to monitor ocular structure and intracranial dynamics changes related to visual impairment and intracranial pressure (ICP) induced by microgravity. The goals are to improve the ease of use and reduce operator variability by automatically rendering improved views of the anatomy and deriving new metrics of the morphology and dynamics. MATERIALS AND METHODS:  A prototype three-dimensional (3-D) probe was integrated onto a portable ultrasound scanner...
2018: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/29449964/consequences-of-inadvertent-intravitreal-mitomycin-c-injection
#9
Ahmad Mirshahi, Alireza Lashay, Mohammad Reza Mehrabi Bahar, Mojtaba Abrishami
Background: Mitomycin C (MMC) as an alkylating agent is miscellaneous an antineoplastic, antibiotic and ophthalmic agent. Here we aim to report a case of inadvertent intravitreal MMC injection instead of Avastin in case of diabetic macular edema. Case presentation: A 53 years old woman was planned to receive intravitreal Avastin injection, but accidentally, 0.05 ml of MMC 0.2% was injected. Best corrected visual acuity (BCVA) was 20/160 before injection. After 2 days, patient was referred to a tertiary referral eye center...
2018: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/29380408/analysing-the-impact-of-myopia-on-the-stiles-crawford-effect-of-the-first-kind-using-a-digital-micromirror-device
#10
Alessandra Carmichael Martins, Brian Vohnsen
PURPOSE: Photoreceptor light acceptance is closely tied to the Stiles-Crawford effect of the first kind (SCE-I). Whether the SCE-I plays a role in myopic development remains unclear although a reduction in directionality has been predicted for high myopia. The purpose of this study is to analyse the relationship between foveal SCE-I directionality, axial eye length, and defocus for emmetropic subjects wearing ophthalmic trial lenses during psychophysical measurements and for myopic subjects with their natural correction...
May 2018: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29362967/does-severe-obstructive-sleep-apnea-syndrome-alter-retrobulbar-blood-flow-a-color-doppler-ultrasound-study
#11
Bülent Çekiç, Ömer Tarık Selçuk, İclal Erdem Toslak, Üstün Osma, Hülya Eyigör, Muhammed Kazım Erol
PURPOSE: To evaluate extraocular orbital vessels with color Doppler ultrasound (CDU) and investigate the effects of severe obstructive sleep apnea (OSA) on retrobulbar blood flow. METHODS: Between February 2014 and September 2015, 30 patients with severe OSA (apnea-hypopnea index (AHI) > 30) and 28 controls were prospectively included in this study. Intraocular pressure (IOP) was measured with a Goldmann applanation tonometer, and CDU was used to evaluate the retrobulbar vessels...
January 23, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29205744/rabbits-with-naturally-occurring-cataracts-referred-for-phacoemulsification-and-intraocular-lens-implantation-a-preliminary-study-of-12-cases
#12
Rick F Sanchez, Richard Everson, Joanna Hedley, Charlotte Dawson, Richard Lam, Simon L Priestnall, Alejandra Garcia de Carellan, Cristina de Miguel, Christopher Seymour
OBJECTIVE: To describe the presentation of 15 rabbits with naturally occurring cataracts referred for phacoemulsification surgery, the procedure in 13 cases and the follow-up in 12. ANIMALS INCLUDED: Fifteen rabbits (30 eyes), nine of which stopped following visual cues in association with cataract progression. MATERIALS AND METHODS: Rabbits underwent preoperative ophthalmic and ocular ultrasound examination. RESULTS: Thirteen rabbits (22 eyes) had mature cataracts...
December 4, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29196990/diagnostic-imaging-ultrasound
#13
Stefan C Kane, Su Lynn Khong, Fabricio da Silva Costa
Diagnostic ultrasound imaging, particularly that which includes pulsed wave Doppler interrogation, is a safe, real-time modality by which the risk of developing preeclampsia can be refined, and the effects of established disease can be assessed. This chapter outlines the rationale and technique for Doppler interrogation of the maternal ophthalmic and uterine arteries and grayscale imaging of the maternal optic nerve sheath diameter.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29151682/anterior-segment-morphology-in-primary-angle-closure-glaucoma-using-ultrasound-biomicroscopy
#14
Tarannum Mansoori, Nagalla Balakrishna
Aim: To evaluate the configuration of the anterior chamber angle quantitatively and study the morphological changes in the eye with ultrasound biomicroscopy (UBM) in primary angle closure glaucoma (PACG) patients after laser peripheral iridotomy (LPI). Materials and methods: A total of 185 eyes of 185 PACG patients post-LPI and 126 eyes of 126 normal subjects were included in this prospective study. All subjects underwent complete ophthalmic evaluation, A-scan biometry, and UBM...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29135355/changes-in-ocular-hemodynamics-after-carotid-artery-angioplasty-and-stenting-caas-in-patients-with-different-severity-of-ocular-ischemic-syndrome
#15
Feiyan Ma, Jing Su, Qingli Shang, Jingxue Ma, Tongdi Zhang, Xin Wang, Honglei Ma, Jianghua Yu
PURPOSE: To evaluate the effects of carotid artery angioplasty and stenting (CAAS) on patients who were diagnosed with ocular ischemic syndrome (OIS). METHODS: Sixty-four eyes of 64 OIS patients with ipsilateral internal carotid artery stenosis ≥70% were included in the study. The study eyes were divided into two groups according to the presence of iris neovascularization: NVI-absent group and NVI-present group, with 32 eyes, respectively. All patients received ocular treatment modality according to the presence of non-perfusion area (pan-retinal photocoagulation) and intraocular pressure (medical treatment included timolol maleate eye drops combined with brinzolamide eye drop; trabeculectomy and cyclophotocoagulation)...
February 2018: Current Eye Research
https://www.readbyqxmd.com/read/29099668/successful-conservative-treatment-of-massive-choroidal-relapse-in-2-retinoblastoma-patients-monitored-by-ultrasound-biomicroscopy-and-or-spectral-domain-optic-coherence-tomography
#16
Christina Stathopoulos, Marie-Claire Gaillard, Francesco Puccinelli, Philippe Maeder, Doris Hadjistilianou, Maja Beck-Popovic, Francis L Munier
PURPOSE: To report the occurrence and management of secondary choroidal infiltration in two retinoblastoma (rb) patients. METHODS: Fundus examination and imaging with spectral domain optical coherence tomography (SD-OCT), B-scan ultrasonography (B-scan), and ultrasound biomicroscopy (UBM). RESULTS: Case 1: A 19-month-old girl with multifocal unilateral group B rb pretreated with intravenous chemotherapy (IVC) was referred for further management...
April 2018: Ophthalmic Genetics
https://www.readbyqxmd.com/read/29055729/central-retinal-artery-occlusion-without-underlying-chronic-ocular-ischemic-syndrome-may-lead-to-neovascular-glaucoma
#17
A Degoumois, S Miocque, E Denion
INTRODUCTION: The prevalence and etiology of neovascular glaucoma (NVG) as a complication of central retinal artery occlusion (CRAO) is a debated issue. According to some authors, NVG associated with CRAO always involves underlying chronic ocular ischemic syndrome (COIS) as a primum movens for CRAO. However, we describe 5 cases of NVG following CRAO with no underlying COIS, confirmed by carotid Doppler studies and ultrasound color Doppler imaging (USCDI) of the ophthalmic artery (OA)...
November 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29043438/safety-and-efficacy-of-multiple-cyclocoagulation-of-ciliary-bodies-by-high-intensity-focused-ultrasound-in-patients-with-glaucoma
#18
Alessandra De Gregorio, Emilio Pedrotti, Giulia Stevan, Margherita Montali, Simonetta Morselli
PURPOSE: To evaluate long-term efficacy and safety of repeated ultrasonic circular cyclocoagulation (UCCC) in patients with uncontrolled glaucoma. METHODS: Forty eyes of 40 patients affected by primary or secondary uncontrolled glaucoma under maximal tolerated medical therapy were enrolled in this prospective non-comparative case series study. A complete ophthalmic examination was performed before and after each month for 1 year. The UCCC treatment was repeated at 4 months if the intraocular pressure (IOP) was > 21 mmHg without major complications...
December 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28962603/assessment-of-intracranial-pressure-with-ultrasonographic-retrobulbar-optic-nerve-sheath-diameter-measurement
#19
Dachuan Liu, Zhen Li, Xuxiang Zhang, Liping Zhao, Jianping Jia, Fei Sun, Yaxing Wang, Daqing Ma, Wenbin Wei
BACKGROUND: Ultrasonograpic retrobulbar optic nerve sheath diameter (ONSD) measurement is considered to be an alternative noninvasive method to estimate intracranial pressure,but the further validation is urgently needed. The aim of the current study was to investigate the association of the ultrasonographic ONSD and intracranial pressure (ICP) in patients. METHODS: One hundred and ten patients whose intracranial pressure measured via lumbar puncture were enrolled in the study...
September 29, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#20
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
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