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MR with surface coils in the follow-up after endoscopic laser resection for glottic squamous cell carcinoma

Feasibility and diagnostic accuracy

  • Head and Neck Radiology
  • Published:
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Abstract

Introduction

This study focuses on the feasibility and diagnostic accuracy of MR of the larynx performed with surface coils after endoscopic laser resection (ELR) for glottic cancer.

Methods

Thirty-one MR examinations of the larynx performed with surface coils on average 12 months after ELR were retrospectively reviewed. Image quality was assessed for each acquired sequence (score 1–3). All the postoperative focal lesions detected at the excision site were analysed by assessing the following: contrast/noise ratio (CNR) normalized on lateral cricoarytenoid muscle; lesion morphology (nodular/elongated) and enhancement after contrast agent administration; apparent diffusion coefficient (ADC) on diffusion-weighted sequences (DWI).

Results

The image quality was highest for axial and coronal T2 sequences (2.39 and 2.58, respectively), and lower for the other sequences (1.66–1.72). However, in most sequences (86–100 %) the quality was considered acceptable. Among 35 focal lesions, nine were histologically proven recurrences, 26 were classified as benign focal lesions (BFL) on the basis of the subsequent follow-up. All recurrences had an intermediate T2 signal (0 < cnr0), mostly (4/5) nodular shape, intense enhancement and high ADC. The combination of T2-weighted and DWI provided the highest accuracy in the differential diagnosis between recurrences and BFL.

Conclusion

MR with surface coils is feasible and can be considered an effective tool in the follow-up after ELR for glottic cancer.

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Conflict of interest

We declare that we have no conflict of interest.

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Authors and Affiliations

  1. Department of Radiology, University of Brescia, piazzale Spedali Civili, 1, 25123, Brescia, Italy

    Marco Ravanelli, Davide Farina, Paola Rizzardi, Elisa Botturi, Paola Prandolini & Roberto Maroldi

  2. Department of Otorhinolaryngology, University of Brescia, piazzale Spedali Civili, 1, 25123, Brescia, Italy

    Stefano Mangili, Giorgio Peretti & Piero Nicolai

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  1. Marco Ravanelli
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  2. Davide Farina
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  3. Paola Rizzardi
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  4. Elisa Botturi
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  5. Paola Prandolini
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  6. Stefano Mangili
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  7. Giorgio Peretti
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  8. Piero Nicolai
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  9. Roberto Maroldi
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Corresponding author

Correspondence to Marco Ravanelli.

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Ravanelli, M., Farina, D., Rizzardi, P. et al. MR with surface coils in the follow-up after endoscopic laser resection for glottic squamous cell carcinoma. Neuroradiology 55, 225–232 (2013). https://doi.org/10.1007/s00234-012-1128-3

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  • DOI: https://doi.org/10.1007/s00234-012-1128-3

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