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European Archives of Oto-Rhino-Laryngology

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01-07-2019 | Computed Tomography | Otology

Imaging re-evaluation of the tympanic segment of the facial nerve canal using cone-beam computed tomography compared with multi-slice computed tomography

Authors: Zhengyu Zhang, Hongxia Yin, Zheng Wang, Jing Li, Han Lv, Pengfei Zhao, Zhenghan Yang, Zhenchang Wang

Published in: European Archives of Oto-Rhino-Laryngology | Issue 7/2019

Abstract

Purpose

This study aims to evaluate the imaging findings of cone-beam computed tomography (CBCT) in displaying subtle structures of the tympanic segment of the facial nerve canal in human cadaver heads compared with multi-slice computed tomography (MSCT).

Methods

Between January 2017 and July 2017, images of the tympanic segment of the facial nerve canal acquired from 73 human cadaver ears by both CBCT and MSCT were prospectively studied. Then, images of the lateral and inferior walls of the tympanic segment were scored using standard imaging slices through a four-point rating scale. Subsequently, the detailed findings of these two imaging modalities were recorded and compared, including interruptions of the bony walls, thread-like bony tubes connected with the walls, and separations in the cavity. The Wilcoxon signed-rank test was used to investigate the differences between scores derived by CBCT and MSCT.

Results

The mean score in the inferior and lateral walls by CBCT were significantly higher than that by MSCT (P = 0.000–0.005), which ranged from 2.0 (1.5, 2.5) to 3.5 (3.0, 4.0), and from 1.5 (1.0, 2.0) to 3.5 (2.5, 4.0), respectively. The interruption of the walls was most common at the anterior part of the inferior wall (38/73 cases). Furthermore, thread-like bony tubes were evident in 18 ears, which connected with the anterior part of the inferior wall (18/73 cases). Moreover, separation was found in 22 ears in the posterior part (22/73 cases).

Conclusions

CBCT can readily demonstrate subtle imaging findings of the tympanic segment of the facial nerve canal.

Mortazavi MM, Latif B, Verma K, Adeeb N, Deep A, Griessenauer CJ, Tubbs RS, Fukushima T (2014) The fallopian canal: a comprehensive review and proposal of a new classification. Childs Nerv Syst 30:387–395. https://doi.org/10.1007/s00381-013-2332-0 CrossRefPubMed

Yadav SP, Ranga A, Sirohiwal BL, Chanda R (2006) Surgical anatomy of tympano-mastoid segment of facial nerve. Indian J Otolaryngol Head Neck Surg 58:27–30. https://doi.org/10.1007/BF02907734 CrossRefPubMedPubMedCentral

Nikolaidis V, Nalbadian M, Psifidis A, Themelis C, Kouloulas A (2009) The tympanic segment of the facial nerve: anatomical study. Clin Anat 22:307–310. https://doi.org/10.1002/ca.20749 CrossRefPubMed

Chen JY, Mafee MF (2014) Computed tomography imaging technique and normal computed tomography anatomy of the temporal bone. Oper Tech Otolayngol Head Neck Surg 25:3–12. https://doi.org/10.1016/j.otot.2013.11.002 CrossRef

Ho ML, Juliano A, Eisenberg RL, Moonis G (2015) Anatomy and pathology of the facial nerve. AJR Am J Roentgenol 204:W612–W619. https://doi.org/10.2214/AJR.14.13444 CrossRefPubMed

Loubele M, Bogaerts R, Van Dijck E, Pauwels R, Vanheusden S, Suetens P, Marchal G, Sanderink G, Jacobs R (2009) Comparison between effective radiation dose of CBCT and MSCT scanners for dentomaxillofacial applications. Eur J Radiol 71:461–468. https://doi.org/10.1016/j.ejrad.2008.06.002 CrossRefPubMed

Nemtoi A, Czink C, Haba D, Gahleitner A (2013) Cone beam CT: a current overview of devices. Dentomaxillofacial Radiol 42:20120443. https://doi.org/10.1259/dmfr.20120443 CrossRef

Jain NV, Gharatkar AA, Parekh BA, Musani SI, Shah UD (2017) Three-dimensional analysis of the anatomical characteristics and dimensions of the nasopalatine canal using cone beam computed tomography. J Maxillofac Oral Surg 16:197–204. https://doi.org/10.1007/s12663-016-0879-5 CrossRefPubMed

De Cock J, Zanca F, Canning J, Pauwels R, Hermans R (2015) A comparative study for image quality and radiation dose of a cone beam computed tomography scanner and a multislice computed tomography scanner for paranasal sinus imaging. Eur Radiol 25:1891–1900. https://doi.org/10.1007/s00330-015-3593-7 CrossRefPubMed

10.

Hodez C, Griffaton-Taillandier C, Bensimon I (2011) Cone-beam imaging: applications in ENT. Eur Ann Otorhinolaryngol Head Neck Dis 128:65–78. https://doi.org/10.1016/j.anorl.2010.10.008 CrossRefPubMed

11.

Hatcher DC (2012) CT & CBCT imaging: assessment of the orbits. Oral Maxillofac Surg Clin N Am 24:537–543. https://doi.org/10.1016/j.coms.2012.07.003 CrossRef

12.

Liang X, Jacobs R, Hassan B, Li L, Pauwels R, Corpas L, Souza PC, Martens W, Shahbazian M, Alonso A, Lambrichts I (2010) A comparative evaluation of cone beam computed tomography (CBCT) and multi-slice CT (MSCT) part I. On subjective image quality. Eur J Radiol 75:265–269. https://doi.org/10.1016/j.ejrad.2009.03.042 CrossRefPubMed

13.

Tüccar E, Tekdemir I, Aslan A, Elhan A, Deda H (2000) Radiological anatomy of the intratemporal course of facial nerve. Clin Anat 13:83–87. https://doi.org/10.1002/(SICI)1098-2353(2000)13:2<3c83:AID-CA2>3e3.0.CO;2-Y CrossRefPubMed

14.

Yu Z, Wang Z, Yang B, Han D, Zhang L (2011) The value of preoperative CT scan of tympanic facial nerve canal in tympanomastoid surgery. Acta Otolaryngol 131:774–778. https://doi.org/10.3109/00016489.2011.554439 CrossRefPubMed

15.

Valavanis A, Kubik S, Oguz M (1983) Exploration of the facial nerve canal by high-resolution computed tomography: anatomy and pathology. Neuroradiology 24:139–147CrossRefPubMed

16.

Casselman JW, Gieraerts K, Volders D, Delanote J, Mermuys K, De Foer B, Swennen G (2013) Cone beam CT: non-dental applications. JBR BTR 96:333–353PubMed

17.

Güldner C, Diogo I, Bernd E, Dräger S, Mandapathil M, Teymoortash A, Negm H, Wilhelm T (2017) Visualization of anatomy in normal and pathologic middle ears by cone beam CT. Eur Arch Otorhinolaryngol 274:737–742. https://doi.org/10.1007/s00405-016-4345-2 CrossRefPubMed

18.

Zou J, Lӓhelmӓ J, Arnisalo A, Pyykkö I (2017) Clinically relevant human temporal bone measurements using novel high-resolution cone-beam CT. J Otol 12:9–17CrossRefPubMedPubMedCentral

19.

Penninger RT, Tavassolie TS, Carey JP (2011) Cone-beam volumetric tomography for applications in the temporal bone. Otol Neurotol 32:453–460. https://doi.org/10.1097/MAO.0b013e31820d962c CrossRefPubMed

20.

Peltonen LI, Aarnisalo AA, Käser Y, Kortesniemi MK, Robinson S, Suomalainen A, Jero J (2009) Cone-beam computed tomography: a new method for imaging of the temporal bone. Acta Radiol 50:543–548. https://doi.org/10.1080/02841850902839700 CrossRefPubMed

21.

Akbulut N, Kursun S, Aksoy S, Kurt H, Orhan K (2014) Evaluation of foramen tympanicum using cone-beam computed tomography in orthodontic malocclusions. J Craniofac Surg 25:e105–e109. https://doi.org/10.1097/SCS.0000000000000440 CrossRefPubMed

22.

Komori M, Yamada K, Hinohira Y, Aritomo H, Yanagihara N (2013) Width of the normal facial canal measured by high-resolution cone-beam computed tomography. Acta Otolaryngol 133:1227–1232. https://doi.org/10.3109/00016489.2013.816443 CrossRefPubMed

23.

Yang B, Zhang F, Jiang X (2011) Imageology study of the relationship between supratubal recess and the course of cholesteatoma. Chin J Otol 9:136–138

24.

Mavridis IN, Pyrgelis ES (2016) Clinical anatomy of the lesser petrosal nerve. Arch Neurosci 3:e34168. https://doi.org/10.5812/archneurosci.34168 CrossRef

25.

Kakizawa Y, Abe H, Fukushima Y, Hongo K, El-Khouly H, Rhoton AL Jr (2007) The course of the lesser petrosal nerve on the middle cranial fossa. Neurosurgery 61:15–23. https://doi.org/10.1227/01.neu.0000289707.49684.a3 CrossRefPubMed

26.

Vidić B (1968) The origin and the course of the communicating branch of the facial nerve to the lesser petrosal nerve in man. Anat Rec 162:511–516. https://doi.org/10.1002/ar.1091620413 CrossRefPubMed

27.

Porto AF Jr, Whicker J, Proud GO (1978) An anatomic study of the hypotympanic branch of Jacobson’s nerve. Laryngoscope 88:56–60CrossRefPubMed

28.

Kanzara T, Hall A, Virk JS, Leung B, Singh A (2014) Clinical anatomy of the tympanic nerve: a review. World J Otorhinolaryngol 4:17–22. https://doi.org/10.5319/wjo.v4.i4.17 CrossRef

29.

Toulgoat F, Sarrazin JL, Benoudiba F, Pereon Y, Auffray-Calvier E, Daumas-Duport B, Lintia-Gaultier A, Desal HA (2013) Facial nerve: from anatomy to pathology. Diagn Interv Imaging 94:1033–1042. https://doi.org/10.1016/j.diii.2013.06.016 CrossRefPubMed

30.

Baxter A (1971) Dehiscence of the fallopian canal. An anatomical study. J Laryngol Otol 85:587–594CrossRefPubMed

31.

Di Martino E, Sellhaus B, Haensel J, Schlegel JG, Westhofen M, Prescher A (2005) Fallopian canal dehiscences: a survey of clinical and anatomical findings. Eur Arch Otorhinolaryngol 262:120–126. https://doi.org/10.1007/s00405-004-0867-0 CrossRefPubMed

32.

Faramarzi M, Roosta S (2017) Incidence of facial nerve canal dehiscence in primary and revision cholesteatoma surgery. Indian J Otolaryngol Head Neck Surg 69:300–306. https://doi.org/10.1007/s12070-017-1094-5 CrossRefPubMedPubMedCentral

33.

Perez B, Campos ME, Rivero J, Lopez Campos D, López-Aguado D (1997) Incidence of dehiscences in the fallopian canal. Int J Pediatr Otorhinolaryngol 40:51–60CrossRefPubMed

Title: Imaging re-evaluation of the tympanic segment of the facial nerve canal using cone-beam computed tomography compared with multi-slice computed tomography
Authors: Zhengyu Zhang
Hongxia Yin
Zheng Wang
Jing Li
Han Lv
Pengfei Zhao
Zhenghan Yang
Zhenchang Wang
Publication date: 01-07-2019
Publisher: Springer Berlin Heidelberg
Keywords: Computed Tomography
Computed Tomography
Published in: European Archives of Oto-Rhino-Laryngology / Issue 7/2019
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI: https://doi.org/10.1007/s00405-019-05419-3

At a glance: The STEP trials

Springer Medicine

Imaging re-evaluation of the tympanic segment of the facial nerve canal using cone-beam computed tomography compared with multi-slice computed tomography

Abstract

Purpose

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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