Impact of Clinical Prediagnosis on HRCT Sensitivity in Otosclerosis

Abstract

Objective: The sensitivity of diagnosing otosclerosis in high-resolution temporal bone CT (HRCT) examinations varies considerably in various studies. In this study, we investigated the effectiveness of temporal bone HRCT in patients with otosclerosis and the extent to which sharing the patient's clinical preliminary diagnosis with radiologists contributed to their ability to diagnose otosclerosis on temporal bone HRCT. Materials and Methods: The temporal bone HRCT reports and operative data of 36 patients who underwent stapedectomy for otosclerosis were retrospectively analyzed. After obtaining detailed clinical information about the patient, the temporal bone HRCT images were re-evaluated by the same two radiologists who had previously reported the images. Results: Otosclerosis was diagnosed with approximately 40.4 % in the analysis performed by general radiologists without information about preliminary diagnosis and 73.8 % in the second evaluation with clinical preliminary information. In 6 ears, otosclerosis could not be diagnosed by temporal bone HRCT despite the evaluation performed after the clinical preliminary diagnosis was known. Conclusion: The effectiveness of temporal bone HRCT examination in the diagnosis of otosclerosis varies. In patients with suspected otosclerosis, communicating the preliminary clinical diagnosis to radiologists significantly increases the diagnostic sensitivity of temporal bone HRCT.

Keywords

• Otosclerosis
• Temporal bone HRCT
• Clinical preliminary diagnosis

Klinik Ön Tanının Otosklerozda YRBT Duyarlılığı Üzerine Etkisi

Abstract

Amaç: Yüksek çözünürlüklü temporal kemik BT (YRBT) incelemelerinde otoskleroz tanısı koyma duyarlılığı çeşitli çalışmalarda önemli ölçüde farklılık göstermektedir. Bu çalışmada, otosklerozlu hastalarda temporal kemik YRBT'nin etkinliğini ve hastanın klinik ön tanısının radyologlarla paylaşılmasının temporal kemik YRBT'de otoskleroz tanısı koyma becerilerine ne ölçüde katkıda bulunduğunu araştırdık. Gereç ve Yöntem: Otoskleroz nedeniyle stapedektomi yapılan 36 hastanın temporal kemik YRBT raporları ve ameliyat verileri retrospektif olarak analiz edildi. Hasta hakkında ayrıntılı klinik bilgiler elde edildikten sonra, temporal kemik YRBT görüntüleri daha önce görüntüleri rapor eden aynı iki radyolog tarafından yeniden değerlendirilmiştir. Bulgular: Genel radyologlar tarafından ön tanı bilgisi olmadan yapılan analizde yaklaşık %40.4 oranında, klinik ön bilgi ile yapılan ikinci değerlendirmede ise %73.8 oranında otoskleroz tanısı konulmuştur. 6 kulakta, klinik ön tanı bilindikten sonra yapılan değerlendirmeye rağmen temporal kemik YRBT ile otoskleroz tanısı konulamamıştır. Sonuç: Temporal kemik YRBT incelemesinin otoskleroz tanısındaki etkinliği değişkenlik göstermektedir. Otoskleroz şüphesi olan hastalarda, klinik ön tanının radyologlara iletilmesi, temporal kemik YRBT'nin tanısal duyarlılığını önemli ölçüde artırmaktadır.

Keywords

• Otoskleroz
• Temporal kemik YRBT
• Klinik ön tanı

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