COVID-19 ŞÜPHESİYLE YOZGAT ŞEHİR HASTANESİNEYATAN OLGULARDA RT-PCR SONUÇLARI VE TORAKSBT GÖRÜNTÜLEME ÖZELLİKLERİ

Amaç: Bu çalışmanın amacı COVID-19 şüphesiyle hastaneye yatırılan olguların Toraks BT bulgularını ve RTPCR sonuçlarını incelemektir.Materyal ve Metot: 15 Mart-15 Mayıs 2020 tarihleri arasında, Yozgat Şehir Hastanesine COVID-19 şüphesiyle yatırılan olgular geriye dönük olarak değerlendirilmiştir. Toraks BT bulguları bu çalışma için oluşturulan modifiye COVID-19 raporlama sistemine göre sınıflandırılmıştır. RT-PCR referans tanı testi kabul edilerek BT’nin tanısal performansı değerlendirilmiştir.Bulgular: Toplam 498 olgu [54±22 (0; 96)] çalışmaya dahil edildi. Erkek olgu sayısı [323 (%65)] kadınlardan [175 (%35)] daha fazlaydı. Olguların 94’ünde (%19) RT-PCR testi pozitif sonuçlanmıştı. Test sonucu pozitif olan hastaların negatif olanlara göre daha küçük yaşta olduğu bulundu. 173 (%35) olguda toraks BT pozitif saptandı: %13 COVID-19 uyumlu bulgular, %7 yüksek şüpheli bulgular, %15 düşük şüpheli bulgular. BT’nin duyarlılığı %49, özgüllüğü %69, RT-PCR’ın duyarlılığı ise %69 olarak bulundu. BT pozitif olgulardaki infiltrasyonların %52’si her iki akciğerde, %40’ı tüm loblarda, %34 alt loblarda, %47’si arka, %43’ü ön ve arka akciğer alanlarında, %60’ı periferik, %30’u periferik ve santral akciğer alanlarında görüldü.Sonuç: Toraks BT’nin COVID-19 tanısındaki duyarlılığı göreceli düşük ancak özgüllüğü yüksek bulunmuştur. BT’nin hızlı tanı için COVID-19 prevalansının yüksek olduğu bölgelerde kullanılması daha faydalı olabilir. BT bulgularını yorumlamada standardize edilmiş bir rapor formatını kullanmak hasta yönetimi için gerekli görünmektedir.

RT-PCR RESULTS AND CHEST CT IMAGING FEATURES IN PATIENTS HOSPITALIZED TO YOZGAT CITY HOSPITAL WITH COVID-19 SUSPICION

Objectives: This study aims to investigate Chest CT findings and RT-PCR results in patients hospitalized withsuspicion of COVID-19. Materials and Methods: Between 15 March and 15 May 2020, patients hospitalized in Yozgat City Hospitalwith suspicion of Covid-19 were evaluated retrospectively. Chest CT findings were classified according to themodified COVID-19 reporting system created for this study. RT-PCR reference diagnostic test was accepted andthe diagnostic performance of CT was evaluated. Results: A total of 498 patients [54±22 (0; 96)] were included in the study. The number of male patients [323(65%)] was higher than female [175 (35%)]. RT-PCR test was positive in 94 (19%) of the patients. Patientswith positive test results were found to be younger than negative ones. Chest CT was positive in 173 (35%)patients: 13% COVID-19 typical findings, 7% high suspect findings, 15% low suspect findings. The sensitivityof CT was 49%, the specificity was 69%, and the sensitivity of RT-PCR was 69%. Infiltrations in CT positivecases were seen in the following areas: 52% in both lungs, 40% in all lobes, 34% in lower lobes, 47% in theposterior, 43% in the anterior and posterior lung regions, 60% in the peripheral, 30% peripheral and centrallung regions. Conclusion: The sensitivity of chest CT in the diagnosis of COVID-19 was relatively low, but had highspecificity. It may be more beneficial to use CT for rapid diagnosis in regions with a high prevalence of COVID 19. Using a standardized report format to evaluate CT findings seems necessary for patient management.

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