1. Articles from pdfs.semanticscholar.org

  2. 1-7 of 7
    1. Multimodal imaging in congenital simple hamartoma of retinal pigment epithelium (CSHRPE): optical coherence tomography (OCT), autofluorescence and oct angiography, a review of the literature and case presentation

      Multimodal imaging in congenital simple hamartoma of retinal pigment epithelium (CSHRPE): optical coherence tomography (OCT), autofluorescence and oct angiography, a review of the literature and case presentation

      Purpose: To report a case of congenital simple Hamartoma of retinal pigment epithelium (CSHRPE) with avulsion of RPE without visual impairment. Methods: A 11-years-old Caucasian male presented with full visual acuity in both eyes, and was made diagnosis of CSHRPE after a complete ophthalmological examination. Was also performed: fundus photographs, spectral domain optical coherence tomography (SD-OCT), fundus autofluorescence (FAF) and OCT angiography (OCT-A). Results: He presented with full visual acuity in both eyes; fundus examination showed a small, darkly pigmented, well-circumscribed lesion involving the central fovea in the right eye. Conclusion:This case shows a rare complication such as avulsion ...

      Read Full Article
    2. Optical Coherence Tomography Angiography for Choroidal Neovascularization and Subretinal Fibrosis in Pseudoxanthoma Elasticum

      Optical Coherence Tomography Angiography for Choroidal Neovascularization and Subretinal Fibrosis in Pseudoxanthoma Elasticum

      Pseudoxanthoma elasticum (PXE) is characterized by a progressive fragmentation and calcification of elastic fibers in connective tissue and when Bruch membrane (BM) is affected ocular modifications can be found. Recently, Optical coherence tomography-angiography (OCT-A) contribute to a better comprehension of lesions in PXE. A 58-year-old woman presented with Pseudoxanthoma elasticum (PXE) complicated by choroidal neovascularization (CNV) in the right eye. Fundus examination found indirect signs of CNV associated with peau d’orange, angioid streaks (AS), Reticular pseudodrusen and subretinal fibrosis (SRF). Multimodal imaging confirmed the diagnosis of CNV and showed a hyper-reflective deposit on AS and SRF which expressed a ...

      Read Full Article
    3. Use of Vibrational Optical Coherence Tomography to Image and Characterize a Squamous Cell Carcinoma

      Use of Vibrational Optical Coherence Tomography to Image and Characterize a Squamous Cell Carcinoma

      Previous literature reports suggest that tissue stiffness is a predictor of cancer and metastatic behavior. We have used optical coherence tomography and vibrational analysis (VOCT) to characterize normal skin, scar and a verrucous carcinoma, a squamous cell carcinoma subtype, non-invasively and nondestructively. The results suggest that epidermal thickening and increased keratin production occur in verrucous carcinoma and lead to increases in surface hills and valleys as well as subsequent increases in epidermal stiffness values. Increased stiffness of the epidermis is a result of increased keratin production while the stiffness of the dermis remains similar to that of normal skin, suggesting ...

      Read Full Article
    4. Fundamentals of Optical Coherence Tomography: A Critical Review

      Fundamentals of Optical Coherence Tomography: A Critical Review

      The main objective of this work is to go through fundamentals, mechanism and types of state of the art emerging imaging modality, i.e. optical coherence tomography (OCT) for non-invasive 3D imaging of bio tissues. This work consists of a critical literature study of OCT’s contribution to axial scanning of bio tissues using different types to the best of our knowledge. Doppler optical coherence tomography (D-OCT) and speckle variance optical coherence tomography (SVOCT) for blood flow assessment and blood microvasculatures on micron-scale resolution with dorsal skin-fold window chamber model (WCM) of mouse, and Fourier domain common path (FD-CP-OCT) for ...

      Read Full Article
    5. Unilateral Choroidal Osteoma with Evidence of Choroidal Neovascularization Based on Ocular Coherence Tomography Angiography

      Unilateral Choroidal Osteoma with Evidence of Choroidal Neovascularization Based on Ocular Coherence Tomography Angiography

      Purpose: Choroidal osteoma is a rare tumor which features intraocular bone formation. This tumor can be complicated by choroidal neovascularization which is a cause of impaired vision in this condition. We present a case of choroidal osteoma with choroidal neovascularization as a complication. Methods: Case report with clinical and angiographic correlation. Results: A 16 year old female presented with a choroidal osteoma in the left eye complicated by choroidal neovascularization. The patient was treated with Bevacizumab; an intravitreal anti-Vascular Endothelial Growth Factor (Anti-VEGF). Following treatment there was improvement in vision as well as resolution of the choroidal neovascular membrane. Conclusion ...

      Read Full Article
    6. Viscoelastic Behavior of Tissues and Implant Materials: Estimation of the Elastic Modulus and Viscous Contribution Using Optical Coherence Tomography and Vibrational Analysis

      Viscoelastic Behavior of Tissues and Implant Materials: Estimation of the Elastic Modulus and Viscous Contribution Using Optical Coherence Tomography and Vibrational Analysis

      Recently, we have reported use of Optical Coherence Tomography (OCT) and vibrational analysis to determine the resonant frequency of a material from which the moduli of decellularized dermis, pig skin, silicone rubber and chemically modified dermis were calculated. In this paper, we present data on viscoelastic mechanical properties of extracellular matrices and silicone rubber at frequencies above and below the resonant frequency. The results reported suggest that measurement of the modulus at the resonant frequency of a viscoelastic material provides a good estimate of the elastic modulus while measurements below and above the resonant frequency contain a larger viscous contribution ...

      Read Full Article
    7. Correlation between Spectral Domain Optical Coherence Tomography and Microperimetric Findings before and after Intravitreal Bevacizumab Injection in Wet Age Related Macular Degeneration

      Correlation between Spectral Domain Optical Coherence Tomography and Microperimetric Findings before and after Intravitreal Bevacizumab Injection in Wet Age Related Macular Degeneration

      Purpose: To evaluate Microperimetry and Optical Coherence Tomography (OCT) in correlating macular structure/function, location/stability of fixation and preferred retinal loci (PRL) before and after bevacizumab injection in wet Age Related Macular degeneration (AMD). Methods: 30 eyes with wet AMD underwent OCT and microperimetry before receiving bevacizumab and one month after treatment. Topography/ Microperimetry overlay was used to assess macular thickness/sensitivity and Location/stability. Results: There was statistically significant improvement in macular thickness and best corrected visual acuity (BCVA) but improvement in macular sensitivity was not significant. There was significant positive correlation between baseline visual acuity (VA) ≤ 3 ...

      Read Full Article
    1-7 of 7
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks