keyword
MENU ▼
Read by QxMD icon Read
search

Retcam

keyword
https://www.readbyqxmd.com/read/30080144/automated-analysis-for-retinopathy-of-prematurity-by-deep-neural-networks
#1
Junjie Hu, Yuanyuan Chen, Jie Zhong, Rong Ju, Zhang Yi
Retinopathy of Prematurity (ROP) is a retinal vasproliferative disorder disease principally observed in infants born prematurely with low birth weight. ROP is an important cause of childhood blindness. Although automatic or semiautomatic diagnosis of ROP has been conducted, most previous studies have focused on "plus" disease, which is indicated by abnormalities of retinal vasculature. Few studies have reported methods for identifying the "stage" of ROP disease. Deep neural networks have achieved impressive results in many computer vision and medical image analysis problems, raising expectations that it might be a promising tool in automatic diagnosis of ROP...
August 6, 2018: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/30063746/diagnostic-accuracy-of-a-digital-fundus-photographic-system-for-detection-of-retinopathy-of-prematurity-requiring-treatment-rop-rt
#2
Phanthipha Wongwai, Sirinya Suwannaraj, Somkiat Asawaphureekorn
OBJECTIVES: To evaluate the diagnostic accuracy of a digital fundus photographic system that consists of taking fundus photographs by a trained technician using a RetCam® shuttle and interpreting fundus images by an expert to detect Retinotapthy of Prematurity requiring treatment (ROP-RT) which defined as type I ROP according to the Early Treatment for ROP study (ETROP). MATERIALS AND METHODS: One hundred infants were examined by (1) an expert ophthalmologist experienced in ROP care using indirect ophthalmoscopy; (2) digital wide-field imaging by a trained technician using a RetCam® shuttle and images were sent remotely for interpretation by two ophthalmologists experienced in ROP care (Reader A, and Reader B); and (3) local ophthalmologists using indirect ophthalmoscopy...
2018: PloS One
https://www.readbyqxmd.com/read/30021036/findings-in-persistent-retinopathy-of-prematurity
#3
Clinton C Warren, Jonathon B Young, Mara R Goldberg, Thomas B Connor, Iris S Kassem, Deborah M Costakos
BACKGROUND AND OBJECTIVE: To determine whether retinopathy of prematurity (ROP) that persists beyond a postmenstrual age (PMA) of 45 weeks has abnormalities that can be documented by fundus photography or fluorescein angiography (FA). PATIENTS AND METHODS: Fundus photographs and FAs were reviewed for all premature infants who underwent FA for persistent ROP after 45 weeks PMA. RESULTS: Of the 487 infants who were screened for ROP, 16 (3.3%) demonstrated ROP beyond 45 weeks...
July 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29548839/comparison-of-the-characteristics-of-retinal-hemorrhages-in-abusive-head-trauma-versus-normal-vaginal-delivery
#4
So Young Kim, Linda A Morgan, Andrew J Baldwin, Donny W Suh
BACKGROUND: Retinal hemorrhage (RH) is one of the hallmarks of abusive head trauma (AHT); however, RH is also encountered with normal vaginal deliveries (NVD) and thus presents the clinician with a diagnostic dilemma. The purpose of this study was to compare RHs in AHT with those of NVD. METHODS: Records of with AHT and NVD infants with RH evaluated from 2013 to 2015 were reviewed retrospectively. Pattern, size, extent, and severity were compared using RetCam images...
April 2018: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29540871/clinical-pattern-of-retinoblastoma-in-pakistani-population-review-of-403-eyes-in-295-patients
#5
Mohammad Idrees Adhi, Sumbul Kashif, Kashif Muhammed, Nisar Siyal
OBJECTIVE: To document clinical pattern of retinoblastoma in Pakistani population. METHODS: This retrospective study, which was conducted at Department of Ophthalmology, Dow University of Health Sciences, Karachi, reviewed clinical records of patients with retinoblastoma from 1997 to 2012. Staging of disease was done by referring to retinal diagrams, RetCam images, and first magnetic resonance imaging. Ophthalmic notes, imaging reports and histopathology reports of enucleated eyes established optic nerve involvement...
March 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29253301/full-term-neonatal-ophthalmic-screening-in-china-a-review-of-4-year-outcomes
#6
Li-Hong Li, Wei-Chi Wu, Na Li, Jun Lu, Guo-Ming Zhang, Jun-Yang Zhao, Yan Ma
BACKGROUND AND OBJECTIVE: To report the 4-year outcomes of a neonatal ophthalmic screening program in the Kunming Maternity and Child Care Hospital of Kunming City, Kunming, China. PATIENTS AND METHODS: This was a retrospective, observational case series study. Newborns who underwent neonatal eye screening using the RetCam system (Clarity Medical Systems, Pleasanton, CA) at the authors' hospital from March 2010 to February 2014 were included. RESULTS: Of the 15,284 full-term infants who participated in the program, 21% (3,171 of 15,284) had some ocular abnormalities...
December 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29095074/evaluation-of-retinopathy-of-prematurity-incidence-with-telemedicine-confirmation-in-gansu-china-a-pilot-study
#7
Xinxin Zhang, Yuping Wang, J Niklas Ulrich, Yi Yang, Leona Ding, Yi Yang, Ding Xu, Kristina Tarczy-Hornoch, Michelle T Cabrera
PURPOSE: To determine the incidence of retinopathy of prematurity (ROP) in Gansu, China by combining bedside examinations with remote RetCam (Clarity Medical Systems, Pleasanton, CA, USA) diagnosis. METHODS: ROP screening via indirect ophthalmoscopy followed by RetCam imaging was performed from 2014 to 2015. Three ROP-experienced ophthalmologists interpreted images remotely. Incidence of ROP was determined by combining bedside and telemedicine diagnoses. RESULTS: Of 139 examined infants and 137 complete records, 20 (14...
November 2, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/29022295/retinopathy-of-prematurity-assist-novel-software-for-detecting-plus-disease
#8
Elias Khalili Pour, Hamidreza Pourreza, Kambiz Ameli Zamani, Alireza Mahmoudi, Arash Mir Mohammad Sadeghi, Mahla Shadravan, Reza Karkhaneh, Ramak Rouhi Pour, Mohammad Riazi Esfahani
PURPOSE: To design software with a novel algorithm, which analyzes the tortuosity and vascular dilatation in fundal images of retinopathy of prematurity (ROP) patients with an acceptable accuracy for detecting plus disease. METHODS: Eighty-seven well-focused fundal images taken with RetCam were classified to three groups of plus, non-plus, and pre-plus by agreement between three ROP experts. Automated algorithms in this study were designed based on two methods: the curvature measure and distance transform for assessment of tortuosity and vascular dilatation, respectively as two major parameters of plus disease detection...
December 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28905829/variation-in-the-vitreoretinal-configuration-of-stage-4-retinopathy-of-prematurity-in-photocoagulated-and-treatment-naive-eyes-undergoing-vitrectomy
#9
Salil Sharad Gadkari, Madan Deshpande
PURPOSE: We sought to document the difference in the vitreoretinal configuration of Stage 4 retinopathy of prematurity (ROP) in photocoagulated and treatment naive eyes undergoing vitrectomy and to correlate it with surgical complexity. METHODS: Consecutive eyes posted for vitrectomy with Stage 4 ROP were documented preoperatively using a RetCam for the presence of peripheral traction (PT), presence of central traction just outside the arcades, and presence of traction extending to the lens...
September 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28780616/the-analysis-of-posterior-segment-findings-in-term-and-premature-infants-using-retcam-images
#10
Huseyin Gursoy, Mustafa Deger Bilgec, Nazmiye Erol, Hikmet Basmak, Ertugrul Colak
OBJECTIVE: To analyze posterior segment findings in term and premature infants using the RetCam image database. METHODS: RetCam images taken of infants born between January 2012 and December 2015 were reviewed. Group 1 included infants with posterior segment findings other than retinopathy of prematurity (ROP). Group 2 included infants with mild-to-severe ROP. The baseline characteristics, anterior segment findings, and percentage of infants who received treatment were compared among the 2 groups...
August 5, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28752837/an-international-comparison-of-retinopathy-of-prematurity-grading-performance-within-the-benefits-of-oxygen-saturation-targeting-ii-trials
#11
RANDOMIZED CONTROLLED TRIAL
B W Fleck, C Williams, E Juszczak, K Cocker, B J Stenson, B A Darlow, S Dai, G A Gole, G E Quinn, D K Wallace, A Ells, S Carden, L Butler, D Clark, J Elder, C Wilson, S Biswas, A Shafiq, A King, P Brocklehurst, A R Fielder
PurposeTo investigate whether the observed international differences in retinopathy of prematurity (ROP) treatment rates within the Benefits of Oxygen Saturation Targeting (BOOST) II trials might have been caused by international variation in ROP disease grading.MethodsGroups of BOOST II trial ophthalmologists in UK, Australia, and New Zealand (ANZ), and an international reference group (INT) used a web based system to grade a selection of RetCam images of ROP acquired during the BOOST II UK trial. Rates of decisions to treat, plus disease grading, ROP stage grading, ROP zone grading, inter-observer variation within groups and intra-observer variation within groups were measured...
January 2018: Eye
https://www.readbyqxmd.com/read/28737759/outcome-of-universal-newborn-eye-screening-with-wide-field-digital-retinal-image-acquisition-system-a-pilot-study
#12
P Goyal, T R Padhi, T Das, L Pradhan, S Sutar, S Butola, U C Behera, L Jain, S Jalali
PurposeTo evaluate the outcome of universal newborn eye screening with wide-field digital retinal imaging (WFDRI) system.MethodsIn this pilot study, we examined 1152 apparently healthy newborn infants in the obstetrics and gynecology ward of a civil hospital in Eastern India over 1.5 years. The examination included external eye examination, red reflex test and fundus imaging by WFDRI (RetCam II, Clarity medical system, Pleasanton, CA, USA) by a trained optometrist. The pathologies detected, net monetary gain and skilled manpower saved were documented...
January 2018: Eye
https://www.readbyqxmd.com/read/28671322/factors-related-to-retinal-haemorrhage-in-infants-born-at-high-risk
#13
Qinglan Pu, Ping Li, Huiqin Jiang, Hong Wang, Qiaoyun Zhou, Jia Liu, Wenhua Zhong, Huafei Huang
PURPOSE: This study aims to determine risk factors for retinal haemorrhage (RH) in high-risk infants. METHODS: A total of 3123 cases with high-risk pregnancy and/or neonatal asphyxia 72 hr after delivery were enrolled into this study. Fundus examinations were performed on newborns utilizing a wide-angle imaging system (RetCam III). Retinal haemorrhage (RH) was classified into three grades. Maternal, obstetric and neonatal parameters from high-risk infants with RH were compared with parameters from infants without RH...
September 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28516002/transplantation-of-human-embryonic-stem-cell-derived-retinal-cells-into-the-subretinal-space-of-a-non-human-primate
#14
Jennifer R Chao, Deepak A Lamba, Todd R Klesert, Anna La Torre, Akina Hoshino, Russell J Taylor, Anu Jayabalu, Abbi L Engel, Thomas H Khuu, Ruikang K Wang, Maureen Neitz, Jay Neitz, Thomas A Reh
PURPOSE: Previous studies have demonstrated the ability of retinal cells derived from human embryonic stem cells (hESCs) to survive, integrate into the host retina, and mediate light responses in murine mouse models. Our aim is to determine whether these cells can also survive and integrate into the retina of a nonhuman primate, Saimiri sciureus, following transplantation into the subretinal space. METHODS: hESCs were differentiated toward retinal neuronal fates using our previously published technique and cultured for 60 to 70 days...
May 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28494564/-clinical-observation-and-related-factors-analysis-of-neonatal-asphyxia-complicated-with-retinal-hemorrhage
#15
Q L Pu, Q Y Zhou, J Liu, P Li, H F Huang, H Q Jiang
Objective: To observe and analyze related factors of neonatal asphyxia complicated with retinal hemorrhage. Methods: It was a retrospective case series. Seven hundred and twenty-one cases with neonatal asphyxia after 72 hours of birth were enrolled in this study. Fundus examination was performed on these newborns using the third generation wide-angle digital retina imaging system (RetCamⅢ), and the bleeding level was divided into level I, level Ⅱ and level Ⅲ. The conditions of the newborn and the mother during pregnancy were correlatively analyzed...
May 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28324112/recurrence-of-retinopathy-of-prematurity-after-intravitreal-ranibizumab-monotherapy-timing-and-risk-factors
#16
Jiao Lyu, Qi Zhang, Chun-Li Chen, Yu Xu, Xun-Da Ji, Jia-Kai Li, Qiu-Jing Huang, Pei-Quan Zhao
Purpose: To investigate timing and risk factors of recurrent retinopathy of prematurity (ROP) after intravitreal ranibizumab (IVR) monotherapy. Methods: Fifty eyes (the more severe eye) of 50 infants treated with IVR monotherapy for type 1 ROP were studied retrospectively. The mean follow-up time was 31 weeks after IVR. Recurrent ROP (recurrence of extraretinal fibrovascular proliferation [EFP]) was determined by RetCam wide-angle fundus imaging and binocular indirect ophthalmoscopy...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28275604/iphone-4s-and-iphone-5s-imaging-of-the-eye
#17
Maaz Jalil, Sandor R Ferenczy, Carol L Shields
BACKGROUND/AIMS: To evaluate the technical feasibility of a consumer-grade cellular iPhone camera as an ocular imaging device compared to existing ophthalmic imaging equipment for documentation purposes. METHODS: A comparison of iPhone 4s and 5s images was made with external facial images (macrophotography) using Nikon cameras, slit-lamp images (microphotography) using Zeiss photo slit-lamp camera, and fundus images (fundus photography) using RetCam II. RESULTS: In an analysis of six consecutive patients with ophthalmic conditions, both iPhones achieved documentation of external findings (macrophotography) using standard camera modality, tap to focus, and built-in flash...
January 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/27981923/tumor-regression-patterns-in-retinoblastoma
#18
Saemah Nuzhat Zafar, Sorath Noorani Siddiqui, Naima Zaheer
OBJECTIVE: To observe the types of tumor regression after treatment, and identify the common pattern of regression in our patients. STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: Department of Pediatric Ophthalmology and Strabismus, Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan, from October 2011 to October 2014. METHODOLOGY: Children with unilateral and bilateral retinoblastoma were included in the study...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27915327/posterior-retinal-hemorrhages-during-retcam-examination-for-retinopathy-of-prematurity
#19
Parijat Chandra, Rajvardhan Azad
BACKGROUND: Retcam-assisted retinopathy of prematurity (ROP) screening is a commonly used safe examination procedure. CASE CHARACTERISTICS: A preterm baby born at 32 weeks gestation age developed extensive posterior retinal hemorrhages during retinal imaging using the RetCam. OUTCOME: Retinal hemorrhages spontaneously resolved. MESSAGE: As tele screening is becomes more popular, proper training for Retcam usage is essential...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27789225/progress-in-anterior-chamber-angle-imaging-for-glaucoma-risk-prediction-a-review-on-clinical-equipment-practice-and-research
#20
REVIEW
Shinoj V K, Xun Jie Jeesmond Hong, Murukeshan V M, Baskaran M, Aung Tin
The visualization capabilities of various ocular imaging instruments can generally be categorized into photographic (e.g. gonioscopy, Pentacam, RetCam) and optical tomographic (e.g. optical coherence tomography (OCT), photoacoustic (PA) imaging, ultrasound biomicriscopy (UBM)) methods. These imaging instruments allow vision researchers and clinicians to visualize the iridocorneal angle, and are essential in the diagnosis and management of glaucoma. Each of these imaging modalities has particular benefits and associated drawbacks in obtaining repeatable and reliable measurement in the evaluation of the angle...
December 2016: Medical Engineering & Physics
keyword
keyword
171844
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"