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US 6,607,490 B2Granted
Ultrasonic diagnostic apparatus and control method thereof
AssigneeKabushiki Kaisha Toshiba
InventorsYoichi Ogasawara, Naohisa Kamiyama
Life of this patent
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Abstract
(n−1) frames of image information which rarely includes contrast agent information are subtracted from addition information obtained by adding a multi-shot image group consisting of a plurality of frames (for example, n−1 frames) which includes the contrast agent information, thereby acquiring image information based on all of the contrast agent which has existed in one scanning plane in the image processing manner.
Claims28
An ultrasonic diagnostic apparatus comprising:
- a transmission/reception device which transmits for a plurality of times ultrasonic waves having an intensity capable of destructing a contrast agent to one scanning plane of an object to which the contrast agent has been injected and receives a reflected wave group from the object;
- a data generator which generates a plurality of accumulative addition data having different time phases based on at least one of a plurality of reflected waves constituting a plurality of continuous frames in the reflected wave group and generates subtraction data from a reflected wave received from the object with a predetermined timing;
- and
- an image information generator which generates calculated data having an operation value to which a plurality of the accumulative addition data has been accumulatively added and from which the subtraction data has been subtracted, and generates ultrasonic wave image information concerning the scanning plane based on the calculated data.
1 more element
An ultrasonic diagnostic apparatus comprising:
- a transmission/reception device which transmits for a plurality of number of times ultrasonic waves having an intensity capable of destructing a contrast agent to one scanning plane of an object to which the contrast agent has been injected, and receives a reflected wave group from the object;
- a data generator which generates a plurality of accumulative addition data having respective time phases based on at least one of a plurality of reflected waves composing a plurality of continuous frames in the reflected wave group, and generates subtraction data from a reflected wave received from the object with a predetermined timing;
- a memory which stores therein a plurality of the accumulative addition data;
- and
- an image information generator which generates calculated data obtained by subtracting the subtraction data from each of the accumulative addition data stored in said memory, and generates ultrasonic image information concerning the scanning plane based on the calculated data.
2 more elements
An ultrasonic diagnostic apparatus control method comprising:
- transmitting for a plurality of number of times ultrasonic waves having an intensity capable of destructing a contrast agent to one scanning plane of an object to which the contrast agent has been injected;
- receiving a reflected wave group from the object;
- generating a plurality of accumulative addition data having respective time phases based on at least one of a plurality of reflected waves composing a plurality of continuous frames in the reflected wave group;
- generating subtraction data from a reflected wave received from the object with a predetermined timing;
- generating calculated data having an operation value to which a plurality of the accumulative addition data have been added and from which the subtraction data has been subtracted;
- and
- generating ultrasonic image information concerning the scanning plane based on the calculated data.
4 more elements
An ultrasonic diagnostic apparatus control method comprising:
- transmitting for a plurality of number of times ultrasonic waves having an intensity capable of destructing a contrast agent to one scanning plane of an object to which the contrast agent has been injected;
- receiving a reflected wave group from the object;
- generating a plurality of the accumulative addition data having different time phases based on at least one of a plurality of reflected waves composing a plurality of continuous frames in the reflected wave group;
- generating subtraction data from a reflected wave received from the object with a predetermined timing;
- generating calculated data obtained by subtracting the subtraction data from the each of accumulative addition data;
- and
- generating ultrasonic image information concerning the scanning plane based on the calculated data.
4 more elements
Dependencies are inferred from the claim text.