Kocaeli Med J. 2021; 10(1): 1-6 | DOI: 10.5505/ktd.2021.45220

Chest Computed Tomography Findings in Progressive Stage of COVID-19

Meral Arifoðlu¹, Nuray Voyvoda¹, Günay Rona¹, Ayse Batirel^2
1Department of Radiology, Kartal Doktor Lütfi Kýrdar City Hospital, Ýstanbul, Turkey
²Department of Infectious Diseases, Kartal Doktor Lütfi Kýrdar City Hospital, Ýstanbul, Turkey

INTRODUCTION: The aim of this study was to evaluate the temporal changes in the radiological findings of COVID-19 pneumonia.
METHODS: The study included patients with the diagnosis of COVID-19 and repeat Chest CT examinations. On both CT examinations, staging by the day of scan was recorded. Types of COVID-19 pneumonia, CT severity score, and Hounsfield unit (HU) values of ground-glass opacity (GGO) were evaluated. The paired-sample t test was used to compare the results.
RESULTS: Our study included a total of 77 patients, 37 males (48.1%), 40 females (51.9%). The mean time between the two CTs was 12.64 days (min: 3-max: 34). Consolidation, GGO, crazy-paving pattern, fibrotic band, bronchiectasis, and pleural thickening were findings of increased progression. There was a statistically significant difference between the CTs in terms of CT severity score and GGO density (p=0.0001 and 0.006, respectively). At follow-up, 54 patients had progression, while 15 patients achieved partial/complete regression. Eight patients had no difference in findings.
DISCUSSION AND CONCLUSION: Progression lasts more than two weeks after the onset of COVID-19 disease symptoms. In the progressive stage, an increase in the areas of GGO density and consolidation, as well as bronchiectasis, crazy-paving pattern, pleural thickening, and fibrotic band are notable radiological findings.

Keywords: Computed Tomography, Pneumonia viral, Coronavirus, Disease progression

---

COVID-19’un Progresif Aþamasinda Toraks Bilgisayarli Tomografi Bulgularý

Meral Arifoðlu¹, Nuray Voyvoda¹, Günay Rona¹, Ayse Batirel^2
1Kartal Doktor Lütfi Kýrdar Þehir Hastanesi, Radyoloji Ana Bilim Dalý, Ýstanbul
²Kartal Doktor Lütfi Kýrdar Þehir Hastanesi, Enfeksiyon Hastalýklarý Ana Bilim Dalý, Ýstanbul

GÝRÝÞ ve AMAÇ: Bu çalýþmanýn amacý COVID-19 pnömonisinin radyolojik bulgularýndaki zamansal deðiþiklikleri deðerlendirmektir.
YÖNTEM ve GEREÇLER: Çalýþmaya COVID-19 tanýsý almýþ ve kontrol toraks BT incelemesi olan hastalar dahil edildi. Her iki BT’de de tarama gününe göre evreleme kaydedildi. COVID-19 pnömoni tipleri, BT þiddet skoru ve buzlu cam opasitelerin Hounsfield Ünite (HU) deðerleri kaydedildi.Sonuçlarý karþýlaþtýrmak için paired-sample t test kullanýldý.
BULGULAR: Çalýþmamýza 37 erkek (48.1%), 40 kadýn(51.9%) olmak üzere toplam 77 hasta dahil edildi. Ýki BT arasýndaki ortalama süre 12.64 gündü(min 3-maks 34). Buzlu cam dansitesi, konsolidasyon, crazy paving patern, fibrotic bant, bronþektazi ve plevral kalýnlaþma progresyon evresinde artmýþ bulgulardý. BT þiddet skoru ve buzlu cam dansitesi yoðunluðu açýsýndan BT’ler arasýnda istatistiksel olarak anlamlý fark vardý(sýrasýyla p=0.0001 ve 0.006). Takipte 54 hastada ilerleme olurken, 15 hastada kýsmi/tam gerileme saptandý. Sekiz hastada bulgularda fark yoktu.
TARTIÞMA ve SONUÇ: Ýlerleme, COVID-19 hastalýðý semptomlarýnýn baþlamasýndan sonra 2 haftadan fazla sürer. Ýlerleyen aþamada, buzlu cam dansitesi yoðunluðu ve konsolidasyon alanlarýndaki artýþ ile bronþektazi, crazy paving patern, plevral kalýnlaþma ve fibrotic bant dikkate deðer radyolojik bulgulardýr.

Anahtar Kelimeler: Bilgisayarlý Tomografi, Pnömoni, viral, Koronavirüs, Ýleri evre, hastalýk

---

CITE