Automatic segmentation of the structures in the nasal cavity and the ethmoidal sinus for the quantification of nasal septal deviations

2021 ◽  
Author(s):  
Cristina Oyarzun Laura ◽  
Katrin Hartwig ◽  
Alexander Distergoft ◽  
Tim Hoffmann ◽  
Kathrin Scheckenbach ◽  
...  
Keyword(s):  
Nasal Cavity ◽  
Automatic Segmentation ◽  
Ethmoidal Sinus ◽  
Nasal Septal Deviations

scholarly journals Oncogenic Osteoblastoma: A Rare Clinical Entity in the PNS Arising from Ethmoidal Sinus

2011 ◽  
Vol 2 (2) ◽  
pp. 101-102
Author(s):  
Champion Venkateshalu Srinivas ◽  
Stanley Jhon ◽  
N Kailash ◽  
L Savithri ◽  
Divya Jyothi
Keyword(s):  
Nervous System ◽  
Differential Diagnosis ◽  
Nasal Cavity ◽  
Peripheral Nervous System ◽  
Nasal Polyp ◽  
Clinical Entity ◽  
Rare Clinical Entity ◽  
Excessive Bleeding ◽  
Ethmoidal Sinus

ABSTRACT Oncogenic osteoblastoma is a rare clinical entity in the peripheral nervous system (PNS). Its presentation is like a nasal polyp. One should keep the diagnosis of oncogenic osteoblastoma in mind as a differential diagnosis for mass in nasal cavity. Excessive bleeding during surgery should arouse the suspicion and the pathologist has to be sounded. A preliminary biopsy of the mass is to be considered. Immunohistochemistry (IHC) should be done, if the suspicion is strong.

scholarly journals Matlab® toolbox for semi-automatic segmentation of the human nasal cavity based on active shape modeling

2019 ◽  
Vol 105 ◽  
pp. 27-38 ◽  
Author(s):  
William Keustermans ◽  
Toon Huysmans ◽  
Bert Schmelzer ◽  
Jan Sijbers ◽  
Joris JJ. Dirckx
Keyword(s):  
Nasal Cavity ◽  
Automatic Segmentation ◽  
Shape Modeling ◽  
Active Shape

scholarly journals Preliminary Volumetric Calculation of the Mucosal Surface in the Nares of Lambs Using a Segmentation of Computed Tomographic Images

2020 ◽  
Vol 7 ◽  
Author(s):  
K. P. Teeling ◽  
D. Werling ◽  
D. Berner
Keyword(s):  
Nasal Cavity ◽  
Surface Area ◽  
Automatic Segmentation ◽  
Mucosal Surface ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Segmentation Process ◽  
Animal Medicine ◽  
Volumetric Rendering ◽  
Mucosal Surface Area

Intranasal vaccinations are becoming more important in both human and animal medicine to generate a localized IgA immune response not seen with parenteral vaccinations. This localized IgA response is more effective at reducing pathogen load on the mucosal surface of a potential host. One prerequisite for a successful nasal vaccination is the need to understand the distribution pattern of the nebulized vaccine, which requires an understanding the volume of the nares as well as the mucosal surface area. The exact mucosal surface area of ruminant nares has not yet been investigated. The aim of this concept study is to provide a detailed breakdown of a new method of volumetric rendering that can be used to calculate the volume and mucosal surface area of ruminant nares from computed tomographic images. The program Seg 3D was used to perform semi-automatic segmentation of a CT scan of a 9-month-old lamb head. Threshold segmentation and manual segmentation were used in combination to select the lamb's nasal cavity. The segmentation process yielded a volumetric rendering that was used to calculate the surface area and volume of the lamb's nasal cavity, with the segmentation process was repeated for each individual side of the lamb's nares. The surface area of the mucosal surface of each nostril is approximately 448 cm2, and the volume is approximately 45 cm3. The methodology described in this study successfully calculated the volume and surface area of a lamb's nares using volumetric rendering.

scholarly journals Impact of anatomic origin of primary squamous cell carcinomas of the nasal cavity and ethmoidal sinus on clinical outcome

2018 ◽  
Vol 275 (9) ◽  
pp. 2363-2371
Author(s):  
Stefan Janik ◽  
Mariel Gramberger ◽  
Lorenz Kadletz ◽  
Johannes Pammer ◽  
Matthaeus Ch. Grasl ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Nasal Cavity ◽  
Squamous Cell ◽  
Squamous Cell Carcinomas ◽  
Ethmoidal Sinus

Prediction of lymph node metastase in NSCLC

2010 ◽  
Vol 01 (05) ◽  
pp. 219-226 ◽  
Author(s):  
F. Beyer ◽  
B. Buerke ◽  
J. Gerss ◽  
K. Scheffe ◽  
M. Puesken ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Fdg Pet ◽  
Automatic Segmentation ◽  
Correlation Coefficients ◽  
Mediastinal Lymph Nodes ◽  
Intra Class Correlation ◽  
Axial Diameter ◽  
Pet Ct ◽  
Fdg Pet Ct

SummaryPurpose: To distinguish between benign and malignant mediastinal lymph nodes in patients with NSCLC by comparing 2D and semiautomated 3D measurements in FDG-PET-CT.Patients, material, methods: FDG-PET-CT was performed in 46 patients prior to therapy. 299 mediastinal lymph-nodes were evaluated independently by two radiologists, both manually and by semi-automatic segmentation software. Longest-axial-diameter (LAD), shortest-axial-diameter (SAD), maximal-3D-diameter, elongation and volume were obtained. FDG-PET-CT and clinical/FDG-PET-CT follow up examinations and/or histology served as the reference standard. Statistical analysis encompassed intra-class-correlation-coefficients and receiver-operator-characteristics-curves (ROC). Results: The standard of reference revealed involvement in 87 (29%) of 299 lymph nodes. Manually and semi-automatically measured 2D parameters (LAD and SAD) showed a good correlation with mean

Nasal Cavity and Paranasal Sinus Lesions: A Frequent Diagnostic Problem

Skull Base ◽  
2007 ◽  
Vol 16 (S 2) ◽  
Author(s):  
Xenophon Kochilas ◽  
Thomas Nikolopoulos ◽  
Theodora Nasiopoulou ◽  
Aikaterini Kiprouli ◽  
Michael Androulakis ◽  
...  
Keyword(s):  
Nasal Cavity ◽  
Paranasal Sinus ◽  
Diagnostic Problem
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