2 min read
22 May 2023

Several medical surveys have hailed computed tomography (CT) scanners as one of the top five medical developments in the last few decades. These devices have revolutionised the study of the human body and the formation of prognosis.

As a doctor, you would strive to offer your patients the best facilities, and installing a high-quality CT scanner is one of them. However, before you buy a CT scanner, consider the following three factors. These factors will help you select a CT scanner that best suits your needs:

1. Slice count

This is one of the most important factors to consider while buying a CT scanner. A machine with a higher slice count can reduce the scan time and produce higher-resolution images. However, it is important to remember that a device with a higher slice count is not always viable. You need to choose a CT scanner depending on the number of scans you need to perform daily/ weekly.

If you perform only a couple of scans per week, a 4-slice CT scanner is sufficient. And in case you have a heavy patient load where you need to scan every day, you can opt for a 16-slice scanner. While a 4-slice machine could cost approximately Rs. 60 lakh, the cost of a 16-slice machine could be well above Rs. 1 crore. If you need financial assistance for buying a CT scanner, you can get a special loan for doctors up to Rs. 80 lakh.

2. Detector area coverage

Apart from the slice count, another essential factor is the detector area coverage. This is a measure of how much of a body the machine can scan. Also, the detector coverage area can vary across scanners with the same slice count.

For example, consider the detector area coverage of a 64-slice CT scanner used in high-volume critical environments such as trauma and cardiac. The detector area coverage of this scanner can vary from 19.5 to 40mm. The greater the area covered, the lesser the amount of stitching you need to review images of an organ or a part of the body.

3. NEMA XR-29 or equivalent compliant

Ensuring your machine is NEMA XR-29 or equivalent compliant is as crucial as the slice count and detector area coverage. There is an increasing demand for exposure to lower radiation. So, make sure the CT scanner that you intend to purchase is NEMA X-29 compliant or equivalent certification. Find out if the model offers enhanced dose modulation techniques. This will ensure that your patients are not subjected to harmful radiation resulting in burns or even poisoning.

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