https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧵" title="Thread" aria-label="Emoji: Thread">Why most #radiology evidences about the use of CT during COVID19 pandemics are not clinically impactful (1/3):

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Radiology is just one aspect of patient management !
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Selection bias +++
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Blurry cohort description
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Retrospective studies
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Emergency setting data quality

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Incomplete clinical, laboratory & followup data
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Data mainly from #China, with a high prevalence of #COVID19
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">CT scanning wasn’t performed for all patients
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Heterogeneity of imaging pathways
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">CT scanning was performed at various time of infection lifecycle

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Imaging findings described are similar to common seasonal viral infections (influenza) & non infectious disorders
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">Reference test ( #PCR) with unknown performances
https://abs.twimg.com/emoji/v2/... draggable="false" alt="🩸" title="Drop of blood" aria-label="Emoji: Drop of blood">No cyto-pathological data as reference standard

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🦠" title="Microbe" aria-label="Emoji: Microbe"> https://abs.twimg.com/emoji/v2/... draggable="false" alt="🦠" title="Microbe" aria-label="Emoji: Microbe"> https://abs.twimg.com/emoji/v2/... draggable="false" alt="🦠" title="Microbe" aria-label="Emoji: Microbe">

This thread welcomes @DrLukeOR @RogueRad @drsxr @RadiologyEditor