Abstract
The COVID-19 pandemic has necessitated rapid testing and diagnosis to manage its spread.
While reverse transcriptase polymerase chain reaction (RT-PCR) is being used as the
gold standard method to diagnose COVID-19, many scientists and doctors have pointed
out some challenges related to the variability, accuracy, and affordability of this
technique. At the same time, radiological methods, which were being used to diagnose
COVID-19 in the early phase of the pandemic in China, were sidelined by many primarily
due to their low specificity and the difficulty in conducting a differential diagnosis.
However, the utility of radiological methods cannot be neglected. Indeed, over the
past few months, healthcare consultants and radiologists in India have been using
or advising the use of high-resolution computed tomography (HRCT) of the chest for
early diagnosis and tracking of COVID-19, particularly in preoperative and asymptomatic
patients. At the same time, scientists have been trying to improve upon the radiological
method of COVID-19 diagnosis and monitoring by using artificial intelligence (AI)-based
interpretation models. This review is an effort to compile and compare such efforts.
To this end, the latest scientific literature on the use of radiology and AI-assisted
radiology for the diagnosis and monitoring of COVID-19 has been reviewed and presented,
highlighting the strengths and limitations of such techniques.
Keywords
Artificial intelligence - COVID-19 - coronavirus - HRCT - radiology