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The ability to identify the intraparotid facial nerve for locating parotid gland lesions in comparison to other indirect landmark methods: evaluation by 3.0 T MR imaging with surface coils

Byline: Mana Ishibashi (1), Shinya Fujii (1), Katsuyuki Kawamoto (2), Keisuke Nishihara (1), Eiji Matsusue (1), Kazuhiko Kodani (1), Toshio Kaminou (1), Toshihide Ogawa (1) Keywords: Parotid gland; Facial nerve; Magnetic resonance imaging Abstract: Introduction It is important to know whether a paro... Full description

Journal Title: Neuroradiology 2010, Vol.52(11), pp.1037-1045
Main Author: Ishibashi, Mana
Other Authors: Fujii, Shinya , Kawamoto, Katsuyuki , Nishihara, Keisuke , Matsusue, Eiji , Kodani, Kazuhiko , Kaminou, Toshio , Ogawa, Toshihide
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0028-3940 ; E-ISSN: 1432-1920 ; DOI: 10.1007/s00234-010-0718-1
Link: http://dx.doi.org/10.1007/s00234-010-0718-1
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recordid: springer_jour10.1007/s00234-010-0718-1
title: The ability to identify the intraparotid facial nerve for locating parotid gland lesions in comparison to other indirect landmark methods: evaluation by 3.0 T MR imaging with surface coils
format: Article
creator:
  • Ishibashi, Mana
  • Fujii, Shinya
  • Kawamoto, Katsuyuki
  • Nishihara, Keisuke
  • Matsusue, Eiji
  • Kodani, Kazuhiko
  • Kaminou, Toshio
  • Ogawa, Toshihide
subjects:
  • Parotid gland
  • Facial nerve
  • Magnetic resonance imaging
ispartof: Neuroradiology, 2010, Vol.52(11), pp.1037-1045
description: Byline: Mana Ishibashi (1), Shinya Fujii (1), Katsuyuki Kawamoto (2), Keisuke Nishihara (1), Eiji Matsusue (1), Kazuhiko Kodani (1), Toshio Kaminou (1), Toshihide Ogawa (1) Keywords: Parotid gland; Facial nerve; Magnetic resonance imaging Abstract: Introduction It is important to know whether a parotid gland lesion is in the superficial or deep lobe for preoperative planning. We aimed to investigate the ability of 3.0 T magnetic resonance (MR) imaging with surface coils to identify the intraparotid facial nerve and locate parotid gland lesions, in comparison to other indirect landmark methods. Methods We retrospectively evaluated 50 consecutive patients with primary parotid gland lesions. The position of the facial nerve was determined by tracing the nerve in the stylomastoid foramen and then following it on sequential MR sections through the parotid gland. The retromandibular vein and the facial nerve line (FN line) were also identified. For each radiologist and each method, we determined the diagnostic ability for deep lobe lesions and superficial lobe lesions, as well as accuracy. These abilities were compared among the three methods using the Chi-square test with Yates' correction. Results Mean diagnostic ability for deep lobe lesions, the diagnostic ability for superficial lobe lesions, and accuracy were 92%, 86%, 87%, respectively, for the direct identification method 67%, 89%, 86%, respectively, for the retromandibular vein method and 25%, 99%, 90% , respectively, for the FN line method. The direct identification method had significantly higher diagnostic ability for deep lesions than the FN line method (P
language: eng
source:
identifier: ISSN: 0028-3940 ; E-ISSN: 1432-1920 ; DOI: 10.1007/s00234-010-0718-1
fulltext: fulltext
issn:
  • 1432-1920
  • 14321920
  • 0028-3940
  • 00283940
url: Link


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titleThe ability to identify the intraparotid facial nerve for locating parotid gland lesions in comparison to other indirect landmark methods: evaluation by 3.0 T MR imaging with surface coils
creatorIshibashi, Mana ; Fujii, Shinya ; Kawamoto, Katsuyuki ; Nishihara, Keisuke ; Matsusue, Eiji ; Kodani, Kazuhiko ; Kaminou, Toshio ; Ogawa, Toshihide
ispartofNeuroradiology, 2010, Vol.52(11), pp.1037-1045
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subjectParotid gland ; Facial nerve ; Magnetic resonance imaging
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descriptionByline: Mana Ishibashi (1), Shinya Fujii (1), Katsuyuki Kawamoto (2), Keisuke Nishihara (1), Eiji Matsusue (1), Kazuhiko Kodani (1), Toshio Kaminou (1), Toshihide Ogawa (1) Keywords: Parotid gland; Facial nerve; Magnetic resonance imaging Abstract: Introduction It is important to know whether a parotid gland lesion is in the superficial or deep lobe for preoperative planning. We aimed to investigate the ability of 3.0 T magnetic resonance (MR) imaging with surface coils to identify the intraparotid facial nerve and locate parotid gland lesions, in comparison to other indirect landmark methods. Methods We retrospectively evaluated 50 consecutive patients with primary parotid gland lesions. The position of the facial nerve was determined by tracing the nerve in the stylomastoid foramen and then following it on sequential MR sections through the parotid gland. The retromandibular vein and the facial nerve line (FN line) were also identified. For each radiologist and each method, we determined the diagnostic ability for deep lobe lesions and superficial lobe lesions, as well as accuracy. These abilities were compared among the three methods using the Chi-square test with Yates' correction. Results Mean diagnostic ability for deep lobe lesions, the diagnostic ability for superficial lobe lesions, and accuracy were 92%, 86%, 87%, respectively, for the direct identification method 67%, 89%, 86%, respectively, for the retromandibular vein method and 25%, 99%, 90% , respectively, for the FN line method. The direct identification method had significantly higher diagnostic ability for deep lesions than the FN line method (P<0.01), but significantly lower diagnostic ability for superficial lobe lesions than the FN line method (P<0.01). Conclusion Direct identification of the intraparotid facial nerve enables parotid gland lesions to be correctly located, particularly those in the deep lobes. Author Affiliation: (1) Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan (2) Division of Otolaryngology, Head and Neck Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan Article History: Registration Date: 11/05/2010 Received Date: 02/02/2010 Accepted Date: 11/05/2010 Online Date: 27/05/2010
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titleThe ability to identify the intraparotid facial nerve for locating parotid gland lesions in comparison to other indirect landmark methods: evaluation by 3.0 T MR imaging with surface coils
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