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Journals / Archives of Clinical and Experimental Medicine / 2021 / Cilt: 6 - Sayı: 3

The relationship between Koos classification and ADC-post-contrast signal intensity values of vestibular schwannoma - A cross sectional study

Vestibüler schwanomlarda Koos sınıflaması ile ADC-post kontrast sinyal intensite değerlerinin ilişkisi – Bir kesitsel çalışma

Nesrin GÜNDÜZ
Başak ATALAY
Umut Perçem Orhan SÖYLEMEZ
Pages
144–147
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The reliability analyses revealed excellent inter-observer agreement for ADC (ICC: 0.93, 95% CI: 0.87-0.97, p

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: We aimed to determine the inter-observer reliability of the Koos classification and to evaluate its correlation with Apparent Diffusion Coefficiency (ADC) and post contrast signal intensity values.
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Key Findings & Data:Methods: Vestibular schwannomas were retrospectively scanned from picture archiving and communication system over a 4-year period.
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Conclusion & Impact:The reliability analyses revealed excellent inter-observer agreement for ADC (ICC: 0.93, 95% CI: 0.87-0.97, p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: We aimed to determine the inter-observer reliability of the Koos classification and to evaluate its correlation with Apparent Diffusion Coefficiency (ADC) and post contrast signal intensity values. Methods: Vestibular schwannomas were retrospectively scanned from picture archiving and communication system over a 4-year period. Koos grade of tumor was assessed by two radiologists blinded to the clinical and pathological data. Cohen’s Kappa was used to analyse inter-observer agreement of Koos grade. The correlation between ADC, signal intensity measurements and Koos grade of tumors was analysed with Kendall’s tau b correlation coefficient. Results: Thirty three patients (21 females, mean age 52.6±16.6 years) with 34 vestibular schwannomas were included the study. The reliability analyses revealed excellent inter-observer agreement for ADC (ICC: 0.93, 95% CI: 0.87-0.97, p

Özet

Amaç: Bu çalışmada Koos sınıflamasının gözlemciler arası güvenilirliğini ve Görünür Difüzyon Katsayısı (ADC) ve kontrast sonrası sinyal intensite değerleri ile korelasyonunu değerlendirmeyi amaçladık. Yöntemler: Hastane veri tabanından 4 yıllık süre içerisinde radyolojik raporlamada vestibuler şıvannom tanısı yer almış olan MR görüntüleri retrospektif olarak tarandı. Lezyonların Koos sınıflamasına göre derecesi, klinik ve patolojik verilere kör olan iki bağımsız radyolog tarafından değerlendirildi. Koos sınıflamasının gözlemciler arası uyumunu analiz etmek için Cohen's Kappa; ADC, sinyal intensite ölçümleri ve Koos tümör derecesi arasındaki korelasyonu değerlendirmede Kendall's tau b korelasyon katsayısı kullanıldı. Bulgular: 34 vestibüler şıvannom, 33 hasta (21 kadın, ortalama yaş 52.6±16.6 yıl) çalışmaya dahil edildi. Güvenilirlik analizleri, ADC (ICC: 0,93, %95 GA: 0.87-0.97, p

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Cite This Article

GÜNDÜZ, N., ATALAY, B., SÖYLEMEZ, U. P. O. (2022). The relationship between Koos classification and ADC-post-contrast signal intensity values of vestibular schwannoma - A cross sectional study. Archives of Clinical and Experimental Medicine, Cilt: 6 - Sayı: 3, 144–147. https://ajindex.com/articles/447797

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References (11)

  1. Lin D, Hegarty JL, Fischbein NJ, Jackler RK. The prevalence of "incidental" acoustic neuroma. Arch Otolaryngol Head Neck Surg. 2005;131:241-4
  2. Goldbrunner R, Weller M, Regis J, Lund-Johansen M, Stavrinou P, Reuss D. et al. EANO guideline on the diagnosis and treatment of vestibular schwannoma. Neuro Oncol. 2020;22:31-45
  3. Evans DG, Moran A, King A, Saeed S, Gurusinghe N, Ramsden R. Incidence of vestibular schwannoma and neurofibromatosis 2 in the North West of England over a 10-year period: higher incidence than previously thought. Otol Neurotol. 2005;26:93-7
  4. Singh K, Singh MP, Thukral C, Rao K, Singh K, Singh A. Role of magnetic resonance imaging in evaluation of cerebellopontine angle schwannomas. Indian J Otolaryngol Head Neck Surg. 2015;67:21-7
  5. De Foer B, Kenis C, Van Melkebeke D, Vercruysse JP, Somers T, Pouillon M. et al. Pathology of the vestibulocochlear nerve. Eur J Radiol. 2010;74:349-58
  6. Leon J, Lehrer EJ, Peterson J, Vallow L, Ruiz-Garcia H, Hadley A. et al. Observation or stereotactic radiosurgery for newly diagnosed vestibular schwannomas: A systematic review and meta-analysis. J Radiosurg SBRT. 2019;6:91-100
  7. Koos WT, Day JD, Matula C, Levy DI. Neurotopographic considerations in the microsurgical treatment of small acoustic neurinomas. J Neurosurg. 1998;88:506-12
  8. Erickson NJ, Schmalz PGR, Agee BS, Fort M, Walters BC, McGrew BM. et al. Koos Classification of Vestibular Schwannomas: A Reliability Study. Neurosurgery. 2019;85:409-414
  9. Rueß D, Pöhlmann L, Grau S, Hamisch C, Hoevels M, Treuer H. et al. Outcome and toxicity analysis of single dose stereotactic radiosurgery in vestibular schwannoma based on the Koos grading system. Sci Rep. 2020;10:930 10. Régis J, Carron R, Moucharrafien S, Delsantin C, Porcheron D, Thomassin JM. et al. Radiochirurgie et radiothérapie stéréotaxique des schwannomes vestibulaires [Role of radiosurgery and stereotactic radiotherapy in the management of vestibular schwannomas]. Cancer Radiother. 2012;16 Suppl:S70-8
  10. Morton RP, Ackerman PD, Pisansky MT, Krezalek M, Leonetti JP, Raffin MJ. et al. Prognostic factors for the incidence and recovery of delayed facial nerve palsy after vestibular schwannoma resection. J Neurosurg. 2011;114:375-80 12. Copeland W, Hoover J, Morris J, Driscoll C, Link M Use of preoperative MRI to predict vestibular schwannoma intraoperative consistency and facial nerve outcome. J Neurol Surg B Skull Base. 2013;74:347–350
  11. Kunigelis KE, Hosokawa P, Arnone G,