Which technology use in nowadays in hrct chest and how much radiation dose gives.

Question

Hrct or high resolution ct basically uses multiple xrays which are detected by the sensors to produce an image of the body which has much higher resolution than a typical xray of chest. The radiation dose of a typical hrct would be anywhere from 0.7-0.35 msv. To put it in perspective, a typical chest xray has a radiation dose of 0.05 msv. So an hrct would have a dose 7-14 times that of an xray test. Another important fact- you get exposed to 2.5 msv radiation dose from cosmic radiation naturally every year. Ct scan though having a higher radiation dose would not cause any problems if used under medical supervision.

Archit Singh · Accepted Answer

Hrct or high resolution ct basically uses multiple xrays which are detected by the sensors to produce an image of the body which has much higher resolution than a typical xray of chest. The radiation dose of a typical hrct would be anywhere from 0.7-0.35 msv. To put it in perspective, a typical chest xray has a radiation dose of 0.05 msv. So an hrct would have a dose 7-14 times that of an xray test. Another important fact- you get exposed to 2.5 msv radiation dose from cosmic radiation naturally every year. Ct scan though having a higher radiation dose would not cause any problems if used under medical supervision.