A: Increased echogenicity on ultrasound makes a clinician suspect a kidney disease as such changes are seen in various diseases involving kidneys. Your serum creatinine is also high, which confirms a kidney dysfunction. You need more investigations like spot urine protein / creatinine ratio to measure degree of protein in the urine and further investigations. Imidapril is an ACE inhibitor, which is a kidney protective drug and used for patients with chronic kidney disease. I would suggest you to visit a nephrologist again and get further investigations done.