The study compared diagnostic methods for evaluating renal artery issues in hypertensive patients, specifically between unenhanced and contrast-enhanced ultrasonography (US) and captopril-enhanced renal scintigraphy.
Enhanced US provided a significantly higher diagnostic yield (99%) compared to unenhanced US (82%) and captopril-enhanced scintigraphy (81%).
The use of the contrast agent notably improved the assessment capabilities of duplex Doppler US for the left and right renal arteries, indicating that it can enhance diagnostic accuracy in renal evaluations.