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Titolo:
Virtual endoscopy of the tympanic cavity based on high-resolution multislice computed tomographic data
Autore:
Klingebiel, R; Bauknecht, HC; Kaschke, O; Werbs, M; Freigang, B; Behrbohm, H; Rogalla, P; Lehmann, R;
Indirizzi:
Neuroradiol Sect, Berlin, Germany Neuroradiol Sect Berlin GermanyNeuroradiol Sect, Berlin, Germany Dept Radiol, Berlin, Germany Dept Radiol Berlin GermanyDept Radiol, Berlin, Germany Dept Ear Nose & Throat, Berlin, Germany Dept Ear Nose & Throat Berlin Germany ar Nose & Throat, Berlin, Germany St Gertrauden Hosp, Dept Ear Nose & Throat, Berlin, Germany St Gertrauden Hosp Berlin Germany pt Ear Nose & Throat, Berlin, Germany Otto Von Guericke Univ, Dept Ear Nose & Throat, Magdeburg, Germany Otto Von Guericke Univ Magdeburg Germany e & Throat, Magdeburg, Germany Pk Klin Weissensee, Dept Ear Nose & Throat, Berlin, Germany Pk Klin Weissensee Berlin Germany pt Ear Nose & Throat, Berlin, Germany
Titolo Testata:
OTOLOGY & NEUROTOLOGY
fascicolo: 6, volume: 22, anno: 2001,
pagine: 803 - 807
SICI:
1531-7129(200111)22:6<803:VEOTTC>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIDDLE-EAR; TEMPORAL BONE; HELICAL CT; SPIRAL CT; RECONSTRUCTION; VISUALIZATION; OTOSCOPY;
Keywords:
virtual endoscopy; computed tomography; image postprocessing; computer-assisted; temporal bone; middle ear;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Klingebiel, R Inst Radiol, Abt Neuroradiol, Charite CM,Schumannstr 20-21, D-10098 Berlin, Germany Inst Radiol Charite CM,Schumannstr 20-21 Berlin Germany D-10098
Citazione:
R. Klingebiel et al., "Virtual endoscopy of the tympanic cavity based on high-resolution multislice computed tomographic data", OTOL NEURO, 22(6), 2001, pp. 803-807

Abstract

Objective: This study was designed to assess the value of high-resolution multislice computed tomography (MSCT) data of the petrous bone for the virtual endoscopic visualization of the tympanic cavity. Background: The recently introduced MSCT technology has improved spatial resolution in the z axis as well as scan speed in computed tomography. Three-dimensional rendering of high-resolution MSCT data of the petrous bone maybe expected to provide endoluminal views of superior image quality, thus competing with transtympanic endoscopy (otoendoscopy). Setting: This study was conducted at a university teaching hospital. Materials and Methods: Cadaveric phantom studies in a MSCT scanner were performed to define a data acquisition protocol, combining adequate detail resolution with low tube current. Subsequently, the cadaveric phantom underwent otoendoscopy. The postprocessing parameters of the three-dimensional rendering protocol were chosen to produce views closely resembling the corresponding otoendoscopic images. High-resolution data from 18 patients with pathologic conditions of the middle ear, as suggested by clinical findings andassessment of cross-sectional data, were postprocessed using the volume rendering technique to generate standardized virtual endoscopic views. A total of 36 virtual endoscopic scans of the tympanic cavity were generated. Results: With regard to intermediate and high-density structures, virtual endoscopic images, based on MSCT data, yielded endoluminal views closely resembling corresponding otoendoscopic views. Virtual endoscopy seems useful for imaging ossicular pathologic conditions such as dysplasia and chain disruption as well as for assessing patient status before and after otosurgery. Conclusion: MSCT data sets allow for generating virtual endoscopic views closely resembling otoendoscopic images. The technique is especially useful when ossicular pathologic changes are present as well as for preoperative and postoperative imaging of otologic procedures.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 19:38:20