scholarly journals Bilateral periodically aggravated paralysis of the eye muscles with peculiar fluctuations in the control of the movement of the upper eyelids

2020 ◽  
Vol VI (2) ◽  
pp. 169-181
Author(s):  
V. Bekhterev
Keyword(s):  
Frequent Occurrence ◽  
Optic Nerves ◽  
Eye Muscles

Cases of periodical eye paralysis are far from frequent occurrence and have been described so far only in a small number. In addition, many aspects of this interesting painful defeat are still not sufficiently clarified. In view of this, I will focus on one of the cases presented to my observation of periodically aggravating paralysis of the optic nerves, which at the same time represented extremely peculiar fluctuations in the control of the movements of the upper arms.

Partition Coefficient of 133Xe between Blood and Eye Tissues

1975 ◽  
Vol 14 (04) ◽  
pp. 301-309
Author(s):  
A. Marczak ◽  
A. Moszczyńska-Kowalska ◽  
H. Kowalski
Keyword(s):  
Partition Coefficient ◽  
Aqueous Humour ◽  
Vitreous Body ◽  
Flow Measurements ◽  
Solubility Coefficient ◽  
Eye Muscles ◽  
Eye Tissues ◽  
Relative Solubility ◽  
Blood Flow Measurements

SummaryThe relative solubility coefficient of 133Xe and the tissue-blood partition coefficient for the aqueous humour vitreous body, conjunctiva and external eye muscles of the rabbit were determined in vitro at 37° C and at various haematocrit values. The partition coefficient for haematocrit 40 was: for the aqueous humour 0,49 ml/ml, for the vitreous body 0,50 ml/ml, for the conjunctiva 0,81 ml/g and for the external eye muscles 0,77 ml/g. It was found that the solubility of 133Xe in rabbit erythrocytes is about 50 per cent higher than that in human red cells. The consequences of this fact for the precision of blood flow measurements by the method of tissue clearance are discussed.

Distribution of Orofacial Clefts and Frequent Occurrence of an Unusual Cleft Variant in the Rift Valley of Kenya

2006 ◽  
Author(s):  
Richard Spritz ◽  
Thomas Arnold ◽  
Samuel Buonocore ◽  
David Carter ◽  
Tasha Fingerlin ◽  
...  
Keyword(s):  
Rift Valley ◽  
Frequent Occurrence ◽  
Orofacial Clefts

Methods for Anisakis simplex detection in fish and fishery products

2018 ◽  
Vol 74 (1) ◽  
pp. 6049-2018
Author(s):  
Kochanowski M. ◽  
Różycki M. ◽  
Dąbrowska J. ◽  
Bilska-Zając E. ◽  
Karamon J. ◽  
...  
Keyword(s):  
Anisakis Simplex ◽  
Frequent Occurrence ◽  
Allergic Reactions ◽  
Fish Products ◽  
Fish Muscles ◽  
Fishery Products ◽  
Fish And Fishery Products ◽  
Target Analyte

Anisakis simplex is a zoonotic nematode which can cause human anisakiasis. Furthermore, A. simplex allergens, even of dead larvae can cause allergic reactions, including anaphylaxis. Due to the frequent occurrence in fish muscles and pathogenicity, A. simplex is a serious danger for fish products consumers. Therefore, it is necessary to examine fish and fish products for the presence of these parasites before placing on the market. The purpose of this paper is review of methods for A. simplex detection in fish and fishery products. These methods differ according to the effectiveness and type of the target analyte. They also have different suitability for examination of matrices with different properties. Moreover this paper presents legislations associated with A. simplex detection. .

Early Detection of Central Nervous System Relapse of Pediatric Leukemia with Measurement of Optic Nerve Sheath Diameter on MRI

2019 ◽  
Vol 15 (2) ◽  
pp. 237-241
Author(s):  
Taner Arpaci ◽  
Barbaros S. Karagun
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Optic Nerve ◽  
Early Detection ◽  
Optic Nerve Sheath Diameter ◽  
Central Nervous System Relapse ◽  
Mri Findings ◽  
Pediatric Leukemia ◽  
Optic Nerves ◽  
Cns Relapse

Background: Leukemia is the most common pediatric malignancy. Central Nervous System (CNS) is the most frequently involved extramedullary location at diagnosis and at relapse. </P><P> Objective: To determine if Magnetic Resonance Imaging (MRI) findings of optic nerves should contribute to early detection of CNS relapse in pediatric leukemia. Methods: Twenty patients (10 boys, 10 girls; mean age 8,3 years, range 4-16 years) with proven CNS relapse of leukemia followed up between 2009 and 2017 in our institution were included. Orbital MRI exams performed before and during CNS relapse were reviewed retrospectively. Forty optic nerves with Optic Nerve Sheaths (ONS) and Optic Nerve Heads (ONH) were evaluated on fat-suppressed T2-weighted TSE axial MR images. ONS diameter was measured from the point 10 mm posterior to the globe. ONS distension and ONH configuration were graded as 0, 1 and 2. Results: Before CNS relapse, right mean ONS diameter was 4.52 mm and left was 4.61 mm which were 5.68 mm and 5.66 mm respectively during CNS relapse showing a mean increase of 25% on right and 22% on left. During CNS relapse, ONS showed grade 0 distension in 15%, grade 1 in 60%, grade 2 in 25% and ONH demonstrated grade 0 configuration in 70%, grade 1 in 25% and grade 2 in 5% of the patients. Conclusion: MRI findings of optic nerves may contribute to diagnose CNS relapse by demonstrating elevated intracranial pressure in children with leukemia.

scholarly journals Novel in vivo depiction of optic nerves hemorrhages in child abuse: a 3D-SWI pilot study

2021 ◽  
Author(s):  
Giulio Zuccoli
Keyword(s):  
Optic Nerve ◽  
Mass Effect ◽  
Abusive Head Trauma ◽  
Superficial Siderosis ◽  
Susceptibility Artifacts ◽  
Female Ratio ◽  
Optic Nerves ◽  
Statistical Correlations ◽  
Post Traumatic

Abstract Purpose Until now, the diagnosis of optic nerves hemorrhages in abusive head trauma (AHT) has been obtained only in the postmortem setting. The aim of the IRB-approved study was to assess the presence of optic nerves hemorrhages in AHT patients using 3D-SWI. Methods Thirteen children with a final confirmed multidisciplinary diagnosis of AHT underwent coronal and axial 3D-SWI imaging of the orbits. The presence of optic nerve sheath (ONS) hemorrhages was defined by thickening and marked 3D-SWI hypointensity of the ONS, resulting in mass effect upon the CSF space. Optic nerve (ON) hemorrhages were defined by areas of susceptibility artifacts in the ON parenchyma. Superficial siderosis was defined by susceptibility artifact coating the ON. Furthermore, data about post-traumatic deformity of the ONS at the head of the optic nerve were collected. Results The average age of the population was 7.9 ± 5.9 months old. The average GCS was 11.8 ± 4.5. The male to female ratio was 7:6. ONS hemorrhages were identified in 69.2% of cases. Superficial siderosis and ON hemorrhages were identified in 38.5 and 76.9% of cases, respectively. 3D-SWI also depicted traumatic deformity of the ONS at the level of the optic nerve head in 10 cases (76.9%). No statistical correlations were identified between RetCam findings and 3D-SWI findings or GCS and ON hemorrhages. Conclusion This research shows that dedicated MRI with volumetric SWI of the orbits can depict hemorrhages in the ON, ONS, and ONS injury, in AHT victims.

scholarly journals Validation of Deep-Learning Based Auto-segmentation of the Lens, Optic Nerves, and Chiasm for Stereotactic Radiosurgery

2020 ◽  
Vol 108 (3) ◽  
pp. e784-e785
Author(s):  
K. Salari ◽  
E. Porter ◽  
R. Levitin ◽  
Z.A. Siddiqui ◽  
A. Thompson ◽  
...  
Keyword(s):  
Deep Learning ◽  
Stereotactic Radiosurgery ◽  
Optic Nerves

scholarly journals Giant cell arteritis mimicking infiltrative leptomeningeal disease of the optic nerves

2015 ◽  
Vol 2015 (apr09 1) ◽  
pp. bcr2014209160-bcr2014209160 ◽  
Author(s):  
M. D. Kornberg ◽  
J. N. Ratchford ◽  
R. M. Subramaniam ◽  
J. C. Probasco
Keyword(s):  
Giant Cell Arteritis ◽  
Giant Cell ◽  
Leptomeningeal Disease ◽  
Optic Nerves

2. On a Roche Moutonneé on the summit of the range of hills separating Loch Fyne and Loch Awe. In a letter from the Duke of Argyll.

1857 ◽  
Vol 3 ◽  
pp. 459-463
Author(s):  
Forbes
Keyword(s):  
Frequent Occurrence ◽  
Present Level ◽  
Coast Line ◽  
Boulder Clay

Polished and rounded surfaces of rock are, under their more ordinary conditions, of very frequent occurrence in Argyllshire. By “their more ordinary conditions,” I mean principally two—viz., Where they occur on the existing coast-line, either at, or not far above the present level of the sea; secondly, Where they occur in valleys, or the lower flanks of the hills,—whether under the boulder clay, or on surfaces naturally exposed.

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