Suraj Khanal1, Rajesh Vijayvergiya2, Manphool Singhal3. 1. Assistant Professor of Cardiology, PGIMER, Chandigarh, India. Electronic address: khanal.s@rediffmail.com. 2. Additional Professor of Cardiology, PGIMER, Chandigarh, India. 3. Assistant Professor of Radiodiagnosis, PGIMER, Chandigarh, India.