scholarly journals ANATOMICAL VARIANTS OF PYRIFORM APERTURES AND NASAL BONES IN PATIENTS WITH NORMAL CONFIGURATION AND DIFFERENT AESTHETIC DEFORMITIES OF EXTERNAL NOSE USING MULTISLICE COMPUTED TOMOGRAPHY

2018 ◽  
Vol 99 (5) ◽  
pp. 237-243
Author(s):  
D. A. Lezhnev ◽  
D. V. Davydov ◽  
M. O. Dutova ◽  
V. V. Petrovskaya
Keyword(s):  
Computed Tomography ◽  
Anatomical Variants ◽  
Nasal Bones ◽  
External Nose ◽  
Normal Configuration ◽  
Aesthetic Results ◽  
Characteristic Features ◽  
3D Volume ◽  
3D Volume Rendering ◽  
Long Nose

Objective. To identify the anatomical variants of nasal bones and pyriform apertures in view of normal configuration of external nose and different types of aesthetic nasal deformities, to estimate its possible relations.Material and methods. We performed a retrospective analysis of multi-slice computed tomography (MSCT) data of 2737 patients with the image processing (multiplanar and 3D-volume rendering). The sample comprised 121 patients with aesthetic nasal deformities (rhinokyphosis – nasal hump, long nose, combined deformity like a hidden hump, short nose, wide nose) and 37 individuals with normal European nasal configuration.Results. The most frequent variants of pyriform apertures are drop, heart and pear types. The most common variants of nasal bones in all groups were II, V, VI types according to Lang and Baumeister. Every kind of deformities was described with their characteristic features of pyriform apertures and nasal bones.Conclusion. Statistically proved correlation between the facts of deformities and variants of pyriform apertures and nasal bones was obtained. The preoperative study of variable anatomy must be always performed for improving functional and aesthetic results of rhinoplasty.

scholarly journals Mandibulofacial dysostosis

2012 ◽  
Vol 16 (1) ◽  
pp. 24
Author(s):  
Hein Els ◽  
Shaun Scheepers
Keyword(s):  
Computed Tomography ◽  
Volume Rendering ◽  
Surgical Planning ◽  
Imaging Features ◽  
Uncommon Condition ◽  
3D Volume ◽  
Mandibulofacial Dysostosis ◽  
3D Volume Rendering

Two cases of mandibulofacial dystostosis are presented in order to describe the features associated with the condition. Computed tomography (CT) is frequently performed on these patients to aid in surgical planning. 3D volume rendering provides the opportunity to discuss the imaging features of this uncommon condition.

scholarly journals Use of 3D Volume Rendering Based on High-Resolution Computed Tomography Temporal Bone in Patients with Cochlear Implants

2019 ◽  
Vol 20 ◽  
pp. 184-188 ◽  
Author(s):  
Francesco Ciodaro ◽  
Francesco Freni ◽  
Valentina Katia Mannella ◽  
Francesco Gazia ◽  
Annunziata Maceri ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Cochlear Implants ◽  
Volume Rendering ◽  
High Resolution Computed Tomography ◽  
3D Volume ◽  
3D Volume Rendering

scholarly journals The Possibilities of Multislice computed Tomography in nasal Anthropometry

2019 ◽  
Vol 3 (6) ◽  
pp. 121-125
Author(s):  
D. A. Lezhnev ◽  
D. V. Davydov ◽  
M. O. Dutova
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Imaging Method ◽  
Short Nose ◽  
Preoperative Stage ◽  
Nasal Anatomy ◽  
Normal Configuration ◽  
The Mean ◽  
Long Nose

Background. Nasal anthropometry is an important aspect of maxillofacial and plastic surgery especially in the preoperative stage of rhinoplasty. Multislice computed tomography (MSCT) permits to assess quantitative the variant nasal anatomy using measuring.Aims: to determine the possibilities of MSCT-anthropometry in nasal configuration grade.Materials and methods. We performed a proand retrospective analysis of MSCT data of maxillofacial region of 50 patients (aged 35 ± 10.7 years old) with changes of nasal height and width and 35 women (32.9 ± 8.4 years old) with normal nasal configuration. The variant anatomy consists in long nose (n = 16), short nose (n = 17), wide nose (n = 17). The nasal height was measured from the nasal root (nasion) to the nasal base (subnasion), the nasal width is the distance between the most lateral aspects of the alae nasi. Besides, the nasal index was calculated. The descriptive statistics of obtained data were presented by mean and standard deviation (SD), also the multiple regression analysis was used. Values of p = 0.005 were considered statistically significant.Results. The results showed that the average nasal height in patients with normal configuration is 51.9 ± 2.63 mm, with short nose – 45.2 ± 1.36 mm, with long nose – 60.3 ± 1.28 mm. The mean nasal widths are 34.9 ± 1.88 mm in normal configuration, 38.8±3.57 in wide nose. The nasal indexes were calculated, their features were detected. These obtained results correlate with anthropometric data of different studies.Conclusions. MSCT-anthropometry is an objective imaging method of variant nasal anatomy that could provide improving quality of diagnostics of patients seeking rhinoplasty and choose a surgical approach.

Bronchocele: Demonstration By 3D Volume Rendering Imaging with Multidetector Computed Tomography: Case Report

2011 ◽  
Vol 31 (1) ◽  
pp. 251-255
Author(s):  
Mehmet Emin SAKARYA ◽  
Sami CERAN ◽  
Osman KOÇ ◽  
Orhan ÖZBEK ◽  
Leman G. KARABEKMEZ ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Multidetector Computed Tomography ◽  
Volume Rendering ◽  
3D Volume ◽  
3D Volume Rendering

Visualization of Dialysis Fistula by Computed Tomography Using Time-Resolved 3D Volume Rendering

2015 ◽  
Vol 29 (3) ◽  
pp. 573-577 ◽  
Author(s):  
Anders Svensson ◽  
Michael A. Fischer ◽  
Kerstin Cederlund ◽  
Peter Aspelin ◽  
Bertil Leidner ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Volume Rendering ◽  
Time Resolved ◽  
Dialysis Fistula ◽  
3D Volume ◽  
3D Volume Rendering

3D VOLUME RENDERING FROM HELICAL COMPUTED TOMOGRAPHY TO ASSIST NEPHRON SPARING SURGERY

1999 ◽  
pp. 93
Author(s):  
Deirdre M. Coll ◽  
Brian R. Herts ◽  
William J. Davros ◽  
Robert G. Uzzo ◽  
Andrew C. Novick
Keyword(s):  
Computed Tomography ◽  
Volume Rendering ◽  
Nephron Sparing Surgery ◽  
Helical Computed Tomography ◽  
Nephron Sparing ◽  
3D Volume ◽  
3D Volume Rendering

scholarly journals In Vivo Computed Tomography Direct Volume Rendering of the Anterior Ethmoidal Artery: A Descriptive Anatomical Study

2020 ◽  
Vol 24 (01) ◽  
pp. e38-e46
Author(s):  
Filippo Cascio ◽  
Alberto Cacciola ◽  
Simona Portaro ◽  
Gianpaolo Antonio Basile ◽  
Giuseppina Rizzo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Volume Rendering ◽  
Anatomical Study ◽  
Direct Volume Rendering ◽  
Ethmoidal Artery ◽  
Anterior Ethmoidal Artery ◽  
3D Volume ◽  
3D Volume Rendering ◽  
Cerebral Aneurism

Abstract Introduction The clinical relevance of the anatomy and variations of the anterior ethmoidal artery (AEA) is outstanding, considering its role as a landmark in endoscopic surgery, its importance in the therapy of epistaxis, and the high risks related to iatrogenic injuries. Objective To provide an anatomical description of the course and relationships of the AEA, based on direct computed-tomography (CT)-based 3D volume rendering. Methods Direct volume rendering was performed on 18 subjects who underwent (CT) with contrast medium for suspected cerebral aneurism. Results The topographical location of 36 AEAs was assessed as shown: 10 dehiscent (27.8%), 20 intracanal (55.5%), 6 incomplete canals (16.7%). Distances from important topographic landmarks are reported. Conclusion This work demonstrates that direct 3D volume rendering is a valid imaging technique for a detailed description of the anterior ethmoidal artery thus representing a useful tool for head pre-operatory assessments.

A spontán mellkasfali sérvekről két operált eset kapcsán

2010 ◽  
Vol 63 (2) ◽  
pp. 80-83 ◽  
Author(s):  
Károly Vincze ◽  
Péter Zádori ◽  
Zsolt Magyaródi ◽  
Gyula Horváth
Keyword(s):  
Volume Rendering ◽  
Spiral Ct ◽  
Multislice Spiral Ct ◽  
3D Volume ◽  
3D Volume Rendering

Absztrakt A szerzők a világirodalmi ritkaságnak számító atraumaticus (spontán) mellkasfali tüdősérvet ismertetik. Két operált betegük kapcsán bemutatják a sérv kialakulását elősegítő körülményeket és a kórkép klinikai jellemzőit. Mindkét betegük spontán mellkasfali (intercostalis) sérvét chronicus obstructiv syndroma (COPD) okozta makacs köhögés váltotta ki. Az elvégzett multislice spirál CT (MSCT) vizsgálat, valamint a speciális szoftver segítségével készített másodlagos 3D „volume-rendering” (VRT) rekonstrukciós képek egyértelműen utaltak a ritka kórformára. Az MSCT-vizsgálatok a Kaposi Mór Oktató Kórházban készültek, Siemens Somatom Emotion 6 MSCT-berendezéssel. A pontos diagnózis birtokában végzett mellkasfali korrekciók tartós gyógyuláshoz vezettek. A szerzők röviden ismertetik a mellkasfali sérvekkel kapcsolatos hazai és fontosabb külföldi irodalmi vonatkozásokat. A kórkép rendkívüli ritkasága ellenére a kialakulásában szerepet játszó COPD elterjedtsége miatt érdemel figyelmet. A hasonló esetek diagnosztikájában nagy segítséget jelenthet a bemutatott korszerű képalkotó eljárás alkalmazása.

scholarly journals Interactive 3D volume rendering in biomedical publications

Micron ◽  
2010 ◽  
Vol 41 (7) ◽  
pp. 886.e1-886.e17 ◽  
Author(s):  
Bernhard Ruthensteiner ◽  
Natalie Baeumler ◽  
David G. Barnes
Keyword(s):  
Volume Rendering ◽  
Interactive 3D ◽  
Biomedical Publications ◽  
3D Volume ◽  
3D Volume Rendering
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