Rulkov Map in the Superior Orbit

2017 ◽  
pp. 55-62
Author(s):  
Anju Yadav ◽  
Ketan Jha
Keyword(s):  
Superior Orbit

scholarly journals Assessment of the Learning Curve for Virtual Surgical Planning in Orbital Fractures

2020 ◽  
Vol 13 (3) ◽  
pp. 186-191 ◽  
Author(s):  
Tsung-yen Hsieh ◽  
Mena Said ◽  
Raj D. Dedhia ◽  
Mary Roz Timbang ◽  
Toby O. Steele ◽  
...  
Keyword(s):  
Learning Curve ◽  
Surgical Planning ◽  
Maximum Deviation ◽  
Orbital Fractures ◽  
Software Training ◽  
Planning Time ◽  
Virtual Surgical Planning ◽  
Average Maximum ◽  
Novice Users ◽  
Superior Orbit

Virtual surgical planning (VSP) is becoming more widely used in maxillofacial reconstruction and can be surgeon-based or industry-based. Surgeon-based models require software training but allow surgeon autonomy. We evaluate the learning curve for VSP through a prospective cohort study in which planning times and accuracy of 7 otolaryngology residents with no prior VSP experience were compared to that of a proficient user after a single training protocol and 6 planning sessions for orbital fractures. The average planning time for the first session was 21 minutes 41 seconds ± 6 minutes 11 seconds with an average maximum deviation of 2.5 ± 0.8 mm in the lateral orbit and 2.3 ± 0.6 mm in the superior orbit. The average planning time for the last session was 13 minutes 5 seconds ± 10 minutes and 7 seconds with an average maximum deviation of 1.4 ± 0.5 mm in the lateral orbit and 1.3 ± 0.4 mm in the superior orbit. Novice users reduced planning time by 40% and decreased maximum deviation of plans by 44% and 43% in the lateral and superior orbits, respectively, approaching that of the proficient user. Virtual surgical planning has a quick learning curve and may be incorporated into surgical training.

The Supraorbital Approach: Technical Note

Neurosurgery ◽  
1982 ◽  
Vol 11 (4) ◽  
pp. 537-542 ◽  
Author(s):  
John A. Jane ◽  
Tae Sung Park ◽  
Louis H. Pobereskin ◽  
Richard H. Winn ◽  
Albert B. Butler
Keyword(s):  
Technical Note ◽  
Orbital Tumors ◽  
Supraorbital Approach ◽  
Brain Retraction ◽  
Superior Orbit

Abstract We describe a modification of an old frontal craniotomy technique which allows excellent access to the floor of the frontal fossa and the superior orbit with less brain retraction than conventional techniques. The procedure is described and suggestions are made for its use. We consider it to be the approach of choice for orbital tumors.

scholarly journals Alternated Superior Chaotic Biogeography Based Algorithm for Optimization Problems

2022 ◽  
Vol 13 (1) ◽  
pp. 0-0
Keyword(s):  
Dynamical Systems ◽  
Dynamic Behaviour ◽  
Optimization Problems ◽  
Bifurcation Diagrams ◽  
Switching Strategy ◽  
Alternate Version ◽  
Parrondo’S Paradox ◽  
Stable Periodic ◽  
Parameter Values ◽  
Superior Orbit

In this study, we consider a switching strategy that yields a stable desirable dynamic behaviour when it is applied alternatively between two undesirable dynamical systems. From the last few years, dynamical systems employed “chaos1 + chaos2 = order” and “order1 + order2 = chaos” (vice-versa) to control and anti control of chaotic situations. To find parameter values for these kind of alternating situations, comparison is being made between bifurcation diagrams of a map and its alternate version, which, on their own, means independent of one another, yield chaotic orbits. However, the parameter values yield a stable periodic orbit, when alternating strategy is employed upon them. It is interesting to note that we look for stabilization of chaotic trajectories in nonlinear dynamics, with the assumption that such chaotic behaviour is not desirable for a particular situation. The method described in this paper is based on the Parrondo’s paradox, where two losing games can be alternated, yielding a winning game, in a superior orbit.

Presentation and treatment of a posttraumatic pseudomeningocele of the superior orbit

2000 ◽  
Vol 21 (3) ◽  
pp. 219-221 ◽  
Author(s):  
Daniel K. Smith ◽  
Ivan El-Sayed ◽  
Enrico Pafundi ◽  
Robert W. Dolan
Keyword(s):  
Superior Orbit

The skull

2021 ◽  
pp. 1-62
Author(s):  
Daniel R. van Gijn ◽  
Jonathan Dunne
Keyword(s):  
Facial Expression ◽  
Hard Palate ◽  
Upper Aerodigestive Tract ◽  
Facial Skeleton ◽  
Human Skull ◽  
Upper Jaw ◽  
Temporal Bones ◽  
Upper Third ◽  
Superior Orbit ◽  
Piriform Aperture

The human skull is the skeleton of the head and is considered along with the mandible. It consists of paired bones and unpaired midline bones that contribute to the muscular attachments for mastication and facial expression, a bony foundation for the upper aerodigestive tract and support and housing for the special sensory organs, brain and other structures susceptible to trauma. The skull without the mandible is termed the cranium and consists of the neurocranium and viscerocranium (facial skeleton). The upper third of the skull is principally formed by the frontal bones and exaggerated at the superciliary ridges of the superior orbit and smooth glabella region centrally. The paired maxillary bones form the middle third, creating the circumference of the piriform aperture between, and are separated from the frontal and temporal bones by the zygoma laterally. They house the maxillary sinuses and meet in the midline inferiorly to form the upper jaw and most of the hard palate at the intermaxillary suture.

Surgical anatomy of the superior orbit on ultra-high-resolution MRI at 9.4 Tesla

2015 ◽  
Vol 49 (5) ◽  
pp. 284-288
Author(s):  
Dag Krohn-Hansen ◽  
Lili Zhang ◽  
Erling Haaskjold ◽  
Torstein R. Meling ◽  
Bjørn Nicolaissen ◽  
...  
Keyword(s):  
High Resolution ◽  
Surgical Anatomy ◽  
High Resolution Mri ◽  
Superior Orbit

scholarly journals Modified and Extended Logistic Map in Superior Orbit

2015 ◽  
Vol 57 ◽  
pp. 581-586 ◽  
Author(s):  
Anju Yadav ◽  
Mamta Rani
Keyword(s):  
Logistic Map ◽  
Superior Orbit
Sign in / Sign up

Export Citation Format

Share Document