Method for generating contrast enhanced ultrasound images with varied imaging parameters and ultrasound imaging device performing the method
Embodiments of the present disclosure provide a contrast enhanced ultrasound imaging method and an ultrasound imaging device. The method may include: determining a target imaging mode from preset imaging modes in response to the first instruction, where the preset imaging modes comprise a first contrast enhanced imaging mode and a second contrast enhanced imaging mode which have different frame rate; transmitting ultrasound waves to a target object and receiving ultrasound echoes returned from the target object according to the determined target imaging mode to obtain ultrasound echo signals; and generating a contrast enhanced image according to the ultrasound echo signals. An ultrasound imaging device is also provided.
1. A contrast enhanced imaging method, comprising:
receiving a first instruction;
determining a first imaging mode from preset imaging modes in response to the first instruction, wherein the first imaging mode comprises a first frame rate, and the first frame rate is pre-configured with first imaging parameters comprising a first line density and a first number of times for transmitting ultrasound waves;
transmitting first ultrasound waves in the first number of times to a target object and receiving first ultrasound echoes returned from the target object according to the first imaging mode to obtain first ultrasound echo signals;
generating a first contrast enhanced image having the first frame rate in the first line density according to the first ultrasound echo signals;
receiving a second instruction;
determining a second imaging mode from the preset imaging modes in response to the second instruction, wherein the second imaging mode comprises a second frame rate greater than the first frame rate, and the second frame rate is pre-configured with second imaging parameters comprising a second line density less than the first line density and a second number of times for transmitting ultrasound waves, wherein the second number of times for transmitting ultrasound waves is less than the first number of times for transmitting ultrasound waves;
transmitting second ultrasound waves in the second number of times to the target object and receiving second ultrasound echoes returned from the target object according to the second imaging mode to obtain second ultrasound echo signals; and
generating a second contrast enhanced image having the second frame rate in the second line density according to the second ultrasound echo signals.
2. The method of claim 1 , wherein the first frame rate of the first contrast enhanced imaging mode is a pre-configured fixed frame rate, wherein the pre-configured fixed frame rate of the first contrast enhanced imaging mode is smaller than the second frame rate of the second contrast enhanced imaging mode.
3. The method of claim 1 , wherein
the first imaging parameter further comprises at least one of a first imaging range and a first pulse repetition frequency; and
the second imaging parameter further comprises at least one of a second imaging range and a second pulse repetition frequency; and
wherein the first imaging range is greater than the second imaging range, or the first pulse repetition frequency is lower than the second pulse repetition frequency.
4. The method of claim 1 , wherein, the second contrast enhanced imaging mode is pre-configured with at least two frame rates and an execution sequence of the at least two frame rates, wherein each of the at least two frame rates is pre-configured with a corresponding imaging parameter and an imaging duration, and the method further comprises:
receiving a third instruction; and
wherein, transmitting the second ultrasound waves in the second number of times to the target object and receiving the second ultrasound echoes returned from the target object according to the second imaging mode to obtain the second ultrasound echo signals comprises:
sequentially transmitting the second ultrasound waves to the target object and receiving the second ultrasound echoes returned from the target object according to the execution sequence, the pre-configured imaging parameter of a corresponding frame rate and a corresponding imaging duration in response to the third instruction to obtain the second ultrasound echo signals; and
generating the second contrast enhanced image according to the second ultrasound echo signals comprises:
sequentially generating contrast enhanced images according to the obtained second ultrasound echo signals.
5. The method of claim 1 , further comprising:
receiving a fourth instruction; and
stopping transmitting ultrasound waves to the target object and receiving ultrasound echoes returned from the target object in response to the fourth instruction.
6. A contrast enhanced imaging method, comprising:
transmitting, via a probe, first ultrasound waves to a target object and receiving first ultrasound echoes returned from the target object according to a first imaging mode to obtain a first ultrasound echo signal, wherein the first imaging mode comprises a first frame rate, and the first frame rate is pre-configured with first imaging parameters comprising a first line density and a first number of times for transmitting ultrasound waves;
generating, via a processor, a first contrast enhanced image according to the first ultrasound echo signal;
receiving, via the processor, a mode switching instruction to switch to a second imaging mode, wherein the second imaging mode comprises a second frame rate greater than the first frame rate, and the second frame rate is pre-configured with second imaging parameters comprising a second line density less than the first line density and a second number of times for transmitting ultrasound waves, wherein the second number of times for transmitting ultrasound waves is less than the first number of times for transmitting ultrasound waves;
transmitting, via the probe, second ultrasound waves in the second number of times to the target object and receiving second ultrasound echoes returned from the target object according to the second imaging mode to obtain a second ultrasound echo signal; and
generating, via the processor, a second contrast enhanced image according to the second ultrasound echo signal.
7. An ultrasound imaging device, comprising:
a probe;
a transmitting circuit which excites the probe to transmit ultrasound waves to a target object;
a receiving circuit which receives ultrasound echoes returned from the target object through the probe to obtain an ultrasound echo signal;
a processor configured to process the ultrasound echo signal to obtain an ultrasound image of the target object;
a display which displays the ultrasound image;
wherein the processor is further configured to:
receiving a first instruction;
determining a first imaging mode from preset imaging modes in response to the first instruction, wherein the first imaging mode comprises a first frame rate, and the first frame rate is pre-configured with first imaging parameters comprising a first line density and a first number of times for transmitting ultrasound waves;
transmitting first ultrasound waves in the first number of times to a target object and receiving first ultrasound echoes returned from the target object according to the first imaging mode to obtain first ultrasound echo signals;
generating a first contrast enhanced image having the first frame rate in the first line density according to the first ultrasound echo signals;
receiving a second instruction;
determining a second imaging mode from the preset imaging modes in response to the second instruction, wherein the second imaging mode comprises a second frame rate greater than the first frame rate, and the second frame rate is pre-configured with second imaging parameters comprising a second line density less than the first line density and a second number of times for transmitting ultrasound waves, wherein the second number of times for transmitting ultrasound waves is less than the first number of times for transmitting ultrasound waves;
transmitting second ultrasound waves in the second number of times to the target object and receiving second ultrasound echoes returned from the target object according to the second imaging mode to obtain second ultrasound echo signals; and
generating a second contrast enhanced image having the second frame rate in the second line density according to the second ultrasound echo signals.
8. The device of claim 7 , wherein the first frame rate of the first contrast enhanced imaging mode is a pre-configured fixed frame rate, wherein the pre-configured fixed frame rate of the first contrast enhanced imaging mode is smaller than the second frame rate of the second contrast enhanced imaging mode.
9. The device of claim 7 , wherein
the first imaging parameter further comprises at least one of a first imaging range and a first pulse repetition frequency; and
the second imaging parameter further comprises at least one of a second imaging range and a second pulse repetition frequency; and
wherein the first imaging range is greater than the second imaging range, or the first pulse repetition frequency is lower than the second pulse repetition frequency.
10. The device of claim 7 , wherein, the second contrast enhanced imaging mode is pre-configured with at least two frame rates and an execution sequence of the at least two frame rates, wherein each of the at least two frame rates is pre-configured with a corresponding imaging parameter and an imaging duration, and
the processor is further configured to:
receive a third instruction;
sequentially transmit the second ultrasound waves to the target object and receive the second ultrasound echoes returned from the target object according to the execution sequence, the pre-configured imaging parameter of a corresponding frame rate and a corresponding imaging duration in response to the third instruction to obtain the second ultrasound echo signals; and
sequentially generate contrast enhanced images according to the obtained second ultrasound echo signals.
11. The device of claim 7 , wherein the processor is further configured to:
receive a fourth instruction; and
stop transmitting ultrasound waves to the target object and receiving ultrasound echoes returned from the target object in response to the fourth instruction.