id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-326497-458mnekj	Schaible, Jan	Sharp margin and geographic shape: systematic evaluation of two novel CT features in COVID-19 pneumonia	2020-07-08		.txt	text/plain	2797	208	51	Advances in knowledge: The newly described CT features "sharp margin" and "geographic shape" of opacifications in patients with COVID-19 pneumonia might help to increase specificity of CT. Advances in knowledge: The newly described CT features "sharp margin" and "geographic shape" of opacifications in patients with COVID-19 pneumonia might help to increase specificity of CT. The aim of this study was to evaluate CT morphology of reverse transcription polymerase chain reaction (RT-PCR) proven COVID-19 pneumonia in a German cohort with special emphasis on the frequency of the empirically observed but so far not systematically evaluated novel CT features. We evaluated two more CT signs which might increase specificity of CT for COVID-19 pneumonia: In the presented cohort, a sharp margin of opacifications with respect to the surrounding healthy tissue was observed in a high proportion of patients (n = 85, 79%). The newly described CT features "sharp margin" and "geographic shape" of opacifications were frequently observed in patients with COVID-19 pneumonia and might help to increase specificity of CT.	./cache/cord-326497-458mnekj.txt	./txt/cord-326497-458mnekj.txt