What is the normal range for the mitral valve deceleration time on Doppler interrogation?

What is the normal range for the mitral valve deceleration time on Doppler interrogation?

• A. 120-140 ms
• B. 160-240 ms
• C. 100-150 ms
• D. 200-280 ms

Answer: (B)

Doppler mitral inflow deceleration time reflects how quickly early diastolic filling slows, and it mainly mirrors LV relaxation and filling pressures. A normal deceleration time is about 160 to 240 milliseconds, which indicates a compliant LV with normal filling pressures. If the deceleration time is shortened (roughly below 160 ms), it suggests elevated left atrial pressure and often a more restrictive filling pattern. If it’s prolonged (around or above 240 ms), that points toward impaired relaxation with relatively lower filling pressures, as seen in early diastolic dysfunction. Therefore, the normal range is 160–240 ms, making that option the best choice. The other ranges are either too short or too long to be considered normal in most adults.

Doppler mitral inflow deceleration time reflects how quickly early diastolic filling slows, and it mainly mirrors LV relaxation and filling pressures. A normal deceleration time is about 160 to 240 milliseconds, which indicates a compliant LV with normal filling pressures. If the deceleration time is shortened (roughly below 160 ms), it suggests elevated left atrial pressure and often a more restrictive filling pattern. If it’s prolonged (around or above 240 ms), that points toward impaired relaxation with relatively lower filling pressures, as seen in early diastolic dysfunction. Therefore, the normal range is 160–240 ms, making that option the best choice. The other ranges are either too short or too long to be considered normal in most adults.