Ultrasonic diagnostic apparatus

An ultrasonic diagnostic apparatus configured to acquire a tomogram of a subject and to display the tomogram, based on a reception signal which is obtained by transmitting/receiving ultrasonic waves to/from the subject, the apparatus comprising:

• an ultrasonic probe configured to transmit/receive the ultrasonic waves to/from the subject;
• maximum value memory circuitry to store a maximum value of an index value relating to an ultrasonic output, with respect to each of scan regions of the subject;
• select circuitry configured to select a scan region of the subject based on an operation of an operator;
• and
• an ultrasonic output controller configured to acquire, from the maximum value memory circuitry, the maximum value of the index value corresponding to the scan region selected by the select circuitry, and control the ultrasonic output such that the ultrasonic output does not exceed the maximum value of the index value,
• a first display to display a current index value relating to the ultrasonic output;
• an adjuster configured to adjust the ultrasonic output in accordance with the operation of the operator, when the ultrasonic output controller is in an OFF state;
• first switching circuitry configured to effect switching between an ON state and an OFF state of the ultrasonic output controller by the operation of the operator;
• write circuitry configured to write, when the ultrasonic output controller is switched to the ON state by the first switching circuitry, the current index value, which is being displayed in accordance with the adjusted ultrasonic output, as the maximum value in the maximum value memory circuitry;
• and
• a second display to display, at a preset start time, a confirmation message that prompts confirmation of use of the maximum value stored in the maximum value memory circuitry.