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Titolo:
Virtual rendering techniques in otologic imaging.
Autore:
Klingebiel, R; Freigang, B; Bauknecht, HC; Thieme, N; Rogalla, P; Werbs, M; Kaschke, O; Lehmann, R;
Indirizzi:
Charite CM, Inst Radiol, Abt Neuroradiol, D-10098 Berlin, Germany Charite CM Berlin Germany D-10098 t Neuroradiol, D-10098 Berlin, Germany Univ Magdeburg, Klin HNO Heilkunde, Charite, D-39106 Magdeburg, Germany Univ Magdeburg Magdeburg Germany D-39106 ite, D-39106 Magdeburg, Germany St Gertrauden Hosp, Abt HNO Heilkunde, Berlin, Germany St Gertrauden HospBerlin Germany p, Abt HNO Heilkunde, Berlin, Germany
Titolo Testata:
LARYNGO-RHINO-OTOLOGIE
fascicolo: 10, volume: 80, anno: 2001,
pagine: 555 - 562
SICI:
1615-0007(200110)80:10<555:VRTIOI>2.0.ZU;2-4
Fonte:
ISI
Lingua:
GER
Soggetto:
RESOLUTION COMPUTED-TOMOGRAPHY; INNER-EAR; 3-DIMENSIONAL CT; TEMPORAL BONE; MIDDLE-EAR; VISUALIZATION; ENDOSCOPY; OTOSCOPY; IMAGES;
Keywords:
virtual endoscopy; volume rendering; inner ear; middle ear; CPA; MSCT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Klingebiel, R Charite CM, Inst Radiol, Abt Neuroradiol, Schumannstr 20-21,D-10098 Berlin, Germany Charite CM Schumannstr 20-21 Berlin Germany D-10098 Germany
Citazione:
R. Klingebiel et al., "Virtual rendering techniques in otologic imaging.", LARY RH OTO, 80(10), 2001, pp. 555-562

Abstract

Virtual postprocessing techniques combine the advantages of condensing thelarge amounts of data provided by high-resolution (HR) cross-sectional imaging modalities with those of three-dimensional (3D) imaging. The techniques and indications for virtual representations in imaging of the middle ear (ME), internal ear (IE), and cerebellopontine angle (CPA) are presented together with practical examples. Material and methods: HR data sets acquired by computed tomography (CT) and magnetic resonance imaging (MRI) in patients with ME, IE, and CPA pathologies were transferred to a workstation via aninternal network to generate endo- or extraluminal 3D views by means of the volume rendering technique (VRT). The source data were acquired using scanners and imaging protocols with the highest resolution available at present: a multislice spiral CT (MSCT) with a slice thickness of 0.5 mm and a reconstruction increment of 0.2 mm and a 3D CISS sequence with a slice thickness of 0.5 mm for MRI. Results: Virtual endoscopy was superior to cross-sectional images for assessing ME pathologies like dysplasia, postoperative changes, and destructive bone processes with extensive soft-tissue involvement; fibrous obliterations of the internal ear and labyrinthine dysplasia weredepicted with a superior image quality on 3D renderings compared to conventional reconstruction techniques. Virtual endoscopy of the CPA and externalacoustic meatus (EAM) was helpful in detecting and visualizing neurovascular conflicts and in assigning small intrameatal tumors to components of theacousticofacial bundle. A common feature of all applications was that the large numbers of source images could be reduced to a few 3D reconstructionsfor documentation and optimized communication of the findings between the radiologist and otologist. Conclusion: Virtual rendering makes an importantcontribution towards establishing, presenting, and documenting the findings when certain otologic pathologies have to be assessed. It can be used forroutine imaging and allows for more efficient handling of the large amounts of imaging data generated by high-resolution cross-sectional imaging modalities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 03:41:23