A 6-year-old child came to the public clinic for a planned ultrasound of the heart (echocardiography) because of the murmur detected during auscultation.
On ultrasound with color doppler mapping: in the projection of the atrial septum, an additional flow is visualized with the direction from the septum to the right atrium, the mouth of the flow up to 3 mm, in the spectral mode in the specified projection, a high-speed flow is recorded, in the B-mode in the specified projection, a tubular structure is visualized (diff .diagnosis: coronary fistula, etc.).