Lateral Stress Dorsiflexion View: A Case Series Demonstrating Clinical Utility in Midterm Hallux Limitus

2015 ◽  
Vol 54 (4) ◽  
pp. 739-746 ◽  
Author(s):  
Troy J. Boffeli ◽  
Rachel C. Collier
2021 ◽  
pp. 247412642199733
Author(s):  
Kyle D. Kovacs ◽  
M. Abdallah Mahrous ◽  
Luis Gonzalez ◽  
Benjamin E. Botsford ◽  
Tamara L. Lenis ◽  
...  

Purpose: This work aims to evaluate the clinical utility and feasibility of a novel scanning laser ophthalmoscope-based navigated ultra-widefield swept-source optical coherence tomography (UWF SS-OCT) imaging system. Methods: A retrospective, single-center, consecutive case series evaluated patients between September 2019 and October 2020 with UWF SS-OCT (modified Optos P200TxE, Optos PLC) as part of routine retinal care. The logistics of image acquisition, interpretability of images captured, nature of the peripheral abnormality, and clinical utility in management decisions were recorded. Results: Eighty-two eyes from 72 patients were included. Patients were aged 59.4 ± 17.1 years (range, 8-87 years). During imaging, 4.4 series of images were obtained in 4.1 minutes, with 86.4% of the image series deemed to be diagnostic of the peripheral pathology on blinded image review. The most common pathologic findings were chorioretinal scars (18 eyes). In 31 (38%) eyes, these images were meaningful in supporting clinical decision-making with definitive findings. Diagnoses imaged included retinal detachment combined with retinoschisis, retinal hole with overlying vitreous traction and subretinal fluid, vitreous inflammation overlying a peripheral scar, Coats disease, and peripheral retinal traction in sickle cell retinopathy. Conclusions: Navigated UWF SS-OCT imaging was clinically practical and provided high-quality characterization of peripheral retinal lesions for all eyes. Images directly contributed to management plans, including laser, injection or surgical treatment, for a clinically meaningful set of patients (38%). Future studies are needed to further assess the value of this imaging modality and its role in diagnosing, monitoring, and treating peripheral lesions.


Neurology ◽  
2020 ◽  
Vol 94 (24) ◽  
pp. e2577-e2580 ◽  
Author(s):  
Nedelina Slavova ◽  
Niklaus Denier ◽  
Marwan El-Koussy ◽  
Roland Wiest ◽  
Frauke Kellner-Weldon ◽  
...  

ObjectiveThis case series describes and discusses the potential clinical utility of a prominent vein (index vein) found on susceptibility-weighted MRI during migraine aura that drains the cortical area responsible for patients' symptoms.MethodsSix patients with acute migraine aura had a prominent draining sulcal vein on emergency MRI done initially for suspected stroke. The location of the prominent vein was correlated to patients' symptoms, and the diameter was compared to the corresponding contralateral vein.ResultsIn our patients with typical migraine aura, an accentuated sulcal vein pointed towards the cortical area correlating with the clinical presentation. Such an index vein outstands the ipsilateral area of hypoperfusion and exceeds the corresponding contralateral vessel in diameter by a factor 2.0 ± 1.6 (mean ± SD).ConclusionThis case series provides a definition of an index vein in MRI pointing to the area where the patients' symptoms originate. Although confirmation in a larger systematic study is necessary, the presence of such an index vein might support that, in patients with an acute neurologic deficit, migraine aura is the underlying etiology.


2021 ◽  
Vol 7 (2) ◽  
pp. 32
Author(s):  
Orlaith Mc Grath ◽  
Mohammad W. Sarfraz ◽  
Abha Gupta ◽  
Yan Yang ◽  
Tariq Aslam

The aim of this paper is to investigate the clinical utility of the application of deep learning denoise algorithms on standard wide-field Optical Coherence Tomography Angiography (OCT-A) images. This was a retrospective case-series assessing forty-nine 10 × 10 mm OCT-A1 macula scans of 49 consecutive patients attending a medical retina clinic over a 6-month period. Thirty-seven patients had pathology; 13 had none. Retinal vascular layers were categorised into superficial or deep capillary plexus. For each category, the retinal experts compared the original standard image with the same image that had intelligent denoise applied. When analysing the Superficial Capillary Plexus (SCP), the denoised image was selected as “best for clinical assessment” in 98% of comparisons. No difference was established in the remaining 2%. On evaluating the Deep Capillary Plexus (DCP), the denoised image was preferred in 35% of comparisons. No difference was found in 65%. There was no evidence of new artefactual features nor loss of anatomical detail in denoised compared to the standard images. The wide-field denoise feature of the Canon Xephilio OCT-A1 produced scans that were clinically preferable over their original OCT-A images, especially for SCP assessment, without evidence for causing a new artefactual error.


Gut ◽  
2012 ◽  
Vol 61 (Suppl 2) ◽  
pp. A252.2-A253 ◽  
Author(s):  
A Simpson ◽  
M S J Wilson ◽  
A Ellefson ◽  
S Colley ◽  
S E Attwood

2017 ◽  
Vol 1 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Niranjan Manoharan ◽  
Paula E. Pecen ◽  
Amy M. Cherof ◽  
Scott C. N. Oliver ◽  
Alan G. Palestine

Purpose: To compare the image quality and clinical utility of oral versus intravenous (IV) dye administration for fluorescein widefield angiography in pediatric patients. Design: Retrospective observational case series. Methods: Retrospective chart review of pediatric patients who underwent noncontact widefield fluorescein angiography (FA; Optos plc) at a single tertiary referral center (UCHealth Eye Center, Aurora, Colorado) between January 1, 2014, and May 31, 2016. Fluorescein angiography images were de-identified, and FA timing was hidden. A masked retinal specialist graded FA image quality and clinical utility. Results: A total of 103 FAs (62 IV and 41 oral) in 82 patients were reviewed. Oral fluorescein administration was more common in young patients (mean age: 8.1 years) compared to IV administration (mean age: 14.5 years; P < .001). Multivariate analysis with adjustment for age showed no statistical difference between oral and IV FA image quality ( P = .59). There was a high incidence of excellent clinical utility in both oral and IV FAs, with no statistically significant difference between the 2 methods. Subgroup analysis of familial exudative vitreoretinopathy, Coats’ disease, choroidal neovascular membrane, and uveitis also showed no statistical difference in clinical utility between IV and oral FA. Conclusion: Oral widefield FA had excellent clinical utility and comparable image quality to IV fluorescein widefield angiography (with adjustment for age). For the evaluation of pediatric retinal disease, oral FA can be a clinically useful diagnostic tool in pediatric patients who are intolerant to IV access, which may avoid some need for FA under general anesthesia.


2018 ◽  
Vol 2 ◽  
pp. S44
Author(s):  
Robert W Cook ◽  
Federico A Monzon ◽  
David Hyams

Abstract not available. Disclosures: Study supported by Castle Biosciences. Copyrights SKIN 2018


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