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Segmentation of optic nerve head images
2017 14th International Joint Conference on Computer Science and Software Engineering (JCSSE), 2017Segmentation of the optic nerve head or optic disc in digital retinal fundus photographs is a non-invasive procedure that plays an important role in early detection of abnormalities of the eyes, particularly glaucoma diseases. Developing an automatic system, we employ image processing techniques coupled with graph cut algorithms from combinatorial ...
Punsiri Boonyakiat, Piyanuch Silapachote
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Relationships of the cisternal segment of the trochlear nerve
Journal of Neurosurgery, 1998Object. The cisternal portion of the trochlear nerve (fourth cranial nerve) can easily be injured during intracranial surgical operations. To help minimize the chance of such injury by promoting a thorough understanding of the anatomy of this nerve and its relationships to surrounding structures, the authors present this anatomical study. Methods.
R S, Tubbs, W J, Oakes
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Nerves - level sets for interactive 3D segmentation of nerve channels
2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano (IEEE Cat No. 04EX821), 2005In this paper, we present a novel method for 3D segmentation of the nerve channels in the human mandible that contain the nervus alveolaris inferior. The technique utilizes geodesic active surfaces that are implemented with level sets. The method consists of two steps: (i) After defining two points, which denote the entry and exit of the nerve channel,
Nils Hanssen +6 more
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The segmentation of axons from the segmental nerve roots to the chick wing
Nature, 1979THE chick wing is innervated by adjacent spinal roots which meet at the brachial plexus and then redistribute their axons to the peripheral nerves. Both the anatomical arrangement of nerves within the wing and the innervation territories supplied by each root are constant among animals of the same strain1–3.
R V, Stirling, D, Summerbell
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Segmental thoracic lipomatosis of nerve with nerve territory overgrowth.
Journal of neurosurgery, 2014Lipomatosis of nerve (LN), or fibrolipomatous hamartoma, is a rare condition of fibrofatty enlargement of the peripheral nerves. It is associated with bony and soft tissue overgrowth in approximately one-third to two-thirds of cases. It most commonly affects the median nerve at the carpal tunnel or digital nerves in the hands and feet.
Mark A, Mahan +3 more
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Nerve segmentation in ultrasound images
2017 Innovations in Power and Advanced Computing Technologies (i-PACT), 2017Today medical field has provided us enormous facilities that has been never thought before. There has been done many improvements in the field of surgery, medicine, X-Rays and many more. But some areas still want some improvements so that patients don't need to face any type of difficulty or pain.
Vidushi Vashishtha, D Aju
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Superior segmental optic nerve hypoplasia: A review
Survey of Ophthalmology, 2022Superior segmental optic nerve hypoplasia (SSONH) is a congenital condition characterized by developmental abnormalities of the superior optic disc and an underappreciated differential diagnosis for glaucoma. The reported prevalence is less than 1%, although likely underestimated due to the difficulties with diagnosis.
Jo-Hsuan Wu +4 more
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Superior Segmental Optic Nerve Hypoplasia
Journal of Neuro-Ophthalmology, 2002A visually asymptomatic 27-year-old man was found to have inferior altitudinal visual field defects binocularly. Ophthalmoscopy revealed superior segmental optic pallor with superior nerve fiber layer atrophy, nicely highlighted in red-free photographs. The patient's mother had insulin-dependent diabetes mellitus.
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Proximal nerve elongation vs. nerve grafting in repairing segmental nerve defects in rabbits
Microsurgery, 2004AbstractIf segmental nerve defects could be repaired by elongating the proximal or distal segments, nerve grafting might be unnecessary. We elongated a 40‐mm proximal segment of an injured median nerve, in the rabbit right forelimb, at a rate of 1 mm/day for 10 days in 10 rabbits and for 15 days in another 10.
Jiang, Baoguo +3 more
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Distal nerve elongation vs. nerve grafting in repairing segmental nerve defects in rabbits
Microsurgery, 2004AbstractSegmental nerve defects have been repaired with nerve grafts. However, regenerating fibers must go through two coaptation sites, and donor site morbidities are inevitable. We elongated the distal nerve segment using a tissue expander and reconnected the nerve. We compared these results with those of nerve grafting.
Hironori, Matsuzaki +3 more
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