3 doctors weighed in:

Does a CT or ultrasound always show kidney stones?

3 doctors weighed in
1 doctor agrees

In brief: No

Ct and ultrasound does not "always" show kidney stones.
The resolution may not be sensitive enough to see very small stones less than 2 to 3 mm. Depending on the thickness of the images on the ct scan, a stone may be potentially missed between the images taken by the ct scanner. Ultrasound may also over-read or miss very small stones as well. Overall though, the detection rate is still very hi.

In brief: No

Ct and ultrasound does not "always" show kidney stones.
The resolution may not be sensitive enough to see very small stones less than 2 to 3 mm. Depending on the thickness of the images on the ct scan, a stone may be potentially missed between the images taken by the ct scanner. Ultrasound may also over-read or miss very small stones as well. Overall though, the detection rate is still very hi.
Dr. Moez Khorsandi
Dr. Moez Khorsandi
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Dr. Tarek Naguib
Internal Medicine - Nephrology & Dialysis
1 doctor agrees

In brief: Yes

As limited by resolution.
Meaning a stone of and eighth of an inch may be difficult to see especially on ultrasound.

In brief: Yes

As limited by resolution.
Meaning a stone of and eighth of an inch may be difficult to see especially on ultrasound.
Dr. Tarek Naguib
Dr. Tarek Naguib
Thank
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