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HOW CT SCAN IS CREATING A SUBSTANTIAL DIFFERENCE IN COVID 19 DIAGNOSIS

by The Welthi Bureau, May 10th, 2021

how ct scan is creating a substantial difference in covid 19 diagnosis
 Image used for representational purpose only

Olive Hospitals, one of the leading Multispeciality hospitals in Hyderabad has always been in the fore front to create awareness amongst the society & individuals. During these critical times of global pandemic, it is important for us all to know the facts and do not get panic. Amidst the outbreak of this fatal second wave, CT Scan has become a pivotal diagnosis procedure to determine the presence of Coronavirus and also its intensity in patients. Since the outbreak of Covid-19, Radiologists around the world have been wondering how imaging could be useful to detect the presence of Coronavirus. Over the time, CT Scan has turned out to be a significant factor that aids in accelerating the speed of diagnosis. Several CT Scan classification schemes have been established as a guide to assist radiologists get a better understanding of the range of typical and atypical manifestations of COVID-19. These schemes also play a important role in the research by providing a standardized procedure of reporting CT findings and their possibility of representing COVID-19 infection.  

We usually get across 2 key terms when it comes to CT Scan,

  • CORADS
  • CT Severity Index

CORADS: Represented in 6 stages from 1 to 6

It is important to note that CORADS score reflects only the probability of patient being infected with Coronavirus. As score increases, the likeliness of being Covid-19 positive also increases. This score does not imply the severity of infection in any way.

 

CORADS 1: There is no infection

CORADS 2: There is little deviation from being normal, but we cannot conclude that it is because of Coronavirus

CORADS 3: There is infection in lungs, it might be because of Coronavirus or any other disease

CORADS 4: Infection in CT Scan mostly resembles Covid-19 caused by Coronavirus

CORADS 5: We can ascertain that it is Covid-19 positive

CORADS 6: When there is infection in CT Scan & patient tests positive for RT PCR or Rapid Antigen Tests, it comes under CORADS 6

This CORADS classification stages from 1 to 6 determines only the possibility of being Covid-19 positive and not the severity of the disease.

CT SEVERITY INDEX

In human body, there are two lungs one on the right side and other on the left. In the right lung, there are 3 lobes (partitions) & in left lung there are 2 lobes (partitions). On the whole, we have 5 lobes. In CT Severity index, there are 25 points from 0 to 25. That means, each lobe is given 5 points from 0 to 5. On the overall basis, 5x5 becomes 25.

These points will be assigned to each lobe in accordance with the severity of the infection.

Point

Infection Percentage

0

No infection

1

Less than 5%

2

5 to 25%

3

25 to 50%

4

50 to 75%

5

75% to 100%

 

Depending upon the visual assessment, damage & infection, points will be assigned to each lobe. Then, a cumulative score of all the lobes will be determined.

  • If the Severity index is less than 8: Mild infection
  • If the severity index is between 8 & 15: Moderate infection
  • If the severity index is above 15: Severe infection

This score helps in determining the severity of the damage. But it is to be noted that, it represents the severity of the disease on the day of assessment. Later, it can increase or decrease. CT Scan should be done only on the advice of Doctors. One should not opt for it on his own. It can lead to unnecessary expenses & excessive exposure to the radiation.

Pulsi Oximeter can also be used to determine the efficiency of our lungs. Ideally SPO2 should be higher than 93. If it is less than 93, it means our lungs are not functioning efficiently.

There are other 4 terms in CT Scanning which are usually used to represent the severity of the infection.

Term

Patient might have got infected with Corona in

Ground Glass Appearance

Past 5 days

Crazy Paving Pattern

Past 5 to 10 days

Consolidation

Past 10 to 13 days

Gradual Resolution

Past 14 days

 

This information is only for general awareness. Patients should consult their Doctors for appropriate analysis of their diagnosis

 

BRIEF PROFILE OF DR. SUNIL BONELA

 

Dr. Sunil Bonela is an Indian & European board-certified Radiologist & Health educator from Olive Hospitals, Hyderabad with an analytical mind, an eye for detail & good observational skills.

 

He believe in a healthy holistic lifestyle, and passionate about creating awareness about health & wellness. He aims to be of service to the community, guiding them by advocating healthy suggestions by using imaging modalities and methods for a healthy lifestyle.

 

ABOUT OLIVE HOSPITALS

Olive Hospitals first opened its doors in August 2008 with a humble beginning. The hospital made its mark with its modest set up in May 2010. Over the years, encouraged by the overwhelming response of the patients and physicians,

 

Olive Hospitals became a full-fledged 250-bed Super-Specialty Hospitals with many breakthroughs in Cardiac Procedures, Emergency Care, Neuro Care, Kidney Care, Urology, Orthopaedics & Joint Replacements, Advanced Diagnostics & Interventional Services, Gynecological Services

 

and many more. Adopting a cutting-edge approach, Olive Hospitals evolved as a regional centre of excellence in medicine providing the highest standards of medical treatment to all sections of the society.


 Disclaimer: Welthi.com does not guarantee any specific results as a result of the procedures mentioned here, and the results may vary from person to person. Read more
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