Results 61 to 70 of about 290,808 (267)
Multidetector Computed Tomography Study of Anatomical Variations of Ethmoidal Sinuses [PDF]
Introduction: Anatomical variations of ethmoidal sinuses are complex and surgically very important. Preoperative detection of these variants is important to prevent surgical complications.
Vishwanath T Thimmaiah
doaj +1 more source
ABSTRACT Background Chronic rhinosinusitis with nasal polyps (CRSwNP) significantly impacts patients’ quality of life (QoL). Standard treatments include nasal irrigations, nasal steroids, systemic corticosteroids, and functional endoscopic sinus surgery (FESS).
Anne‐Sophie Homøe+7 more
wiley +1 more source
Morphometric examination of the paranasal sinuses and mastoid air cells using computed tomography.
BACKGROUND : The paranasal sinuses and mastoid air cells vary considerably in size and shape from person to person. The main structures are pneumatic. In this study, we investigated the relationship between right and left sides and evaluated the volume ...
Karakas Sacide, Kavakli Ahmet
doaj
ABSTRACT Background The pathogenesis of inflammation in eosinophilic chronic rhinosinusitis (ECRS) and non‐eosinophilic chronic rhinosinusitis (NECRS) remains poorly understood. This study aimed to assess immune cell infiltration within the sinonasal microenvironment in these conditions.
Katarzyna Czerwaty+5 more
wiley +1 more source
Immersed boundary-finite element model of fluid-structure interaction in the aortic root [PDF]
It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in vivo imaging data become available.
arxiv +1 more source
Evolution of the paranasal sinuses' anatomy through the ages
Previously, anatomists considered paranasal sinuses as a mysterious region of the human skull. Historically, paranasal sinuses were first identified by ancient Egyptians and later, by Greek physicians.
A. Mavrodi, G. Paraskevas
semanticscholar +1 more source
A Novel International Endoscopic Sphenoid Surgery Classification (IESSC): A Delphi Consensus
ABSTRACT Background Advancements in endoscopic sinus and skull base surgery created a need for standardized terminology to describe sphenoid sinus surgery. Although classification systems exist for other sinuses, one for endoscopic sphenoid sinus surgery is lacking.
Hussain Albaharna+20 more
wiley +1 more source
Chronic sinusitis diagnosis and treatment
The growing popularity and use of endoscopic surgery in the field of otolaryngology prompts an attempt to organize knowledge about possible methods of surgery in the nasal cavity and paranasal sinuses.
Tomasz Korzec+9 more
doaj +1 more source
ABSTRACT Background Particulate matter ⩽2.5 µm in diameter (PM2.5) and its role in chronic rhinosinusitis (CRS) pathogenesis have gained heightened attention. We previously demonstrated that PM2.5 exposure may bias the nasal mucosa in CRS toward a Type 2 inflammatory pathway.
Rory J. Lubner+5 more
wiley +1 more source
Effects of bone- and air-tissue inhomogeneities on the dose distributions of the Leksell Gamma Knife$^{\circledR}$ calculated with PENELOPE [PDF]
Monte Carlo simulation with PENELOPE (v.~2003) is applied to calculate Leksell Gamma Knife$^{\circledR}$ dose distributions for heterogeneous phantoms. The usual spherical water phantom is modified with a spherical bone shell simulating the skull and an air-filled cube simulating the frontal or maxillary sinuses. Different simulations of the 201 source
arxiv +1 more source