Question
Gold standard investigation for diagnosis of Condition shown in Photograph is
A. Doppler USG
B. Captopril challenge test
C. Digital subtraction angiography
D. MAG3 scan
Show Answer
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Correct Answer » C
Explanation
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Ans is C Digital subtraction angiography
This image represents Renal Artery stenosis
Digital subtraction angiography (DSA) is a type of fluoroscopy technique used in interventional radiology to clearly visualize blood vessels in a bony or dense soft tissue environment.
Images are produced using contrast medium by subtracting a ‘pre-contrast image’ or the mask from later images, once the contrast medium has been introduced into a structure. Hence the term ‘digital subtraction angiography
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