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Measuring Organ Length

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A_UROLOGY_RESIDENT

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Hello,

I apologize if this is the wrong place to ask this question, but I figured this would be the best place for my question.

I'm a medical student, and am working on a project with one of my anatomy faculty. For one aspect of the project, we would like to use abdominal X-ray to measure the length of the kidneys. The problem is that some of the images I am using don't have a scale.

Is there a way to measure the length of an organ based on the X-ray alone?
 

Cognovi

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You need to know
1) the pixel spacing
2) the magnification factor

DICOM images will encode the pixel spacing data. DICOM image viewers often have a ruler that shows you mm or cm. The magnification factor is typically ignored/not encoded. You have to decide if your images differ significantly in their magnification (ratio of distance between xray source and kidney divided by distance between source and detector plate).
 
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BusinessAndMedicine

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As a med student any project you do should be geared towards getting a publication. Not sure if measuring kidneys is the way to invest your time...
 

2324tigers

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Hello,

I apologize if this is the wrong place to ask this question, but I figured this would be the best place for my question.

I'm a medical student, and am working on a project with one of my anatomy faculty. For one aspect of the project, we would like to use abdominal X-ray to measure the length of the kidneys. The problem is that some of the images I am using don't have a scale.

Is there a way to measure the length of an organ based on the X-ray alone?

Don't measure standing in cold water.
 
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