Demystifying Digital X-Ray vs Ultrasound vs Doppler: When is which test recommended?
Written by
Dr. Anirban Sengupta
Medical Director & Radiologist
Modern diagnostic imaging enables non-invasive inspection of internal anatomy with remarkable precision.
### 1. Digital Radiography (DR X-Ray)
Uses low-dose X-radiation to produce instant digital images of bones, joints, spine alignment and lung parenchyma. It is ideal for fractures, arthritis and pneumonia.
### 2. High-Resolution Ultrasound (Sonography)
Employs safe high-frequency sound waves (zero radiation). Supreme for soft organs: liver, kidneys, gallbladder stones, uterus, ovaries and thyroid nodules.
### 3. Colour Doppler Studies
Applies the Doppler shift principle to map blood flow velocities and turbulence inside arteries and veins in real-time. Essential for stroke screening (Carotid Doppler) and leg swelling (DVT Doppler).
Diagnostic information intended for patient awareness. Imaging studies should be conducted upon doctor referral.