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  • Updated CT scoring...

Updated CT scoring criteria accurately evaluates progression of COVID-19

Dr. Kamal Kant KohliBy Dr. Kamal Kant KohliPublished On 2020-04-02T19:00:32+05:30  |  Updated On 2020-04-02T19:00:50+05:30
Updated CT scoring criteria accurately evaluates progression of COVID-19

Updated CT scoring criteria from AJR considers both lobe involvement and changes in CT findings to quantitatively and accurately evaluate the progression of COVID-19 pneumonia

Leesburg, VA-- Updated CT scoring criteria that considers lobe involvement, as well as changes in CT findings, could quantitatively and accurately evaluate the progression of coronavirus disease (COVID-19) pneumonia, according to an open-access article in the American Journal of Roentgenology (AJR)."The earlier that COVID-19 is diagnosed and treated, the shorter the time to disease resolution...

Leesburg, VA-- Updated CT scoring criteria that considers lobe involvement, as well as changes in CT findings, could quantitatively and accurately evaluate the progression of coronavirus disease (COVID-19) pneumonia, according to an open-access article in the American Journal of Roentgenology (AJR).

"The earlier that COVID-19 is diagnosed and treated, the shorter the time to disease resolution and the lower the highest and last CT scores are," concluded lead author Guoquan Huang of Wuhu Second People's Hospital in China.

Assigning CT scores to 25 patients according to CT findings and lung involvement, Huang and colleagues recorded the time from symptom onset to diagnosis and treatment for each patient. Patients with COVID-19 were divided into two groups: (patients for whom this interval was ? 3 days) and group 2 (those for whom the interval was > 3 days).

Using a Lorentzian line-shape curve to show the variation tendency during treatment, the fitted tendency curves for group 1 and group 2 were significantly different. Peak points showed that the estimated highest CT score was 10 and 16 for each group, respectively, and the time to disease resolution was 6 and 13 days, respectively.

The Mann-Whitney test showed that the last CT scores were lower for group 1 than for group 2 (p = 0.025), although the chi-square test found no difference in age and sex between the groups. The time from symptom onset to diagnosis and treatment had a positive correlation with the time to disease resolution (r = 0.93; p = 0.000), as well as with the highest CT score (r = 0.83; p = 0.006).

"Sequential chest CT examinations enable qualitative investigation of alterations in COVID-19 infection during the course of treatment," Huang explained.

Because previously proposed CT scoring criteria regarding lobe involvement gave no consideration to changes in CT features (i.e., the change from observation of GGO to a crazy-paving pattern and then consolidation), Huang et al. suggest that such a rubric is not sufficiently accurate to assess the progression of pneumonia.

"In the present study," wrote Huang, "we propose a new version of CT scoring criteria that considers both lobe involvement and changes in CT findings, in an attempt to more comprehensively evaluate COVID-19 pneumonia on sequential chest CT examinations."

For further reference log on to:

http://dx.doi.org/10.2214/AJR.20.23078

American Journal of Roentgenology CT chest COVID-19 coronavirus 
Source : American Journal of Roentgenology
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as an Editor-in-Chief for the Speciality Medical Dialogues section. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Before Joining Medical Dialogues, he has served at important positions in the medical industry in India including as the Hony. Secretary of the Delhi Medical Association as well as the chairman of Anti-Quackery Committee in Delhi and worked with other Medical Councils in India. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

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