We appreciate the interest of Dr. Orsi et al. in our report [1], and we respect the valuable comments made by our colleagues from Milan, Italy, as they struggle to combat the effects of the COVID-19 pandemic. Hospitals in central Japan are also facing a similar situation, and therefore, the comments made by them are invaluable.

We decided to use a CT suite as a dedicated room. Our central radiology section has three CT scanners along a corridor with an arrangement to increase the efficiency of scanning and to avoid the crowding of the patients in front of the CT suites while minimizing contact between COVID-19 and non-COVID-19 patients.

The scanners use 0.75-mm section CT images for the lung parenchyma, and we strongly agree with their reconstruction protocol that comprises thinner section thickness. Dr. Iwasawa also suggested the importance of ultra-high-resolution CT to scrutinize imaging findings of COVID-19 pneumonia [2]. We adopted 2-mm section thickness at the time of submission of our report [1], and since then, this has been changed to 1 mm.

We appreciate their comments regarding contrast-enhanced CT use for COVID-19 patients and the importance of support from Healthcare Assistants (HA) in dedicated CT suites.

Thank you again for the important suggestions, and we hope the serious health emergency caused by COVID-19 in Milan improves swiftly.