Classification and use skills of ultrasound probes
The probe is the most important component of the B-ultrasound machine. Ultrasound probes can be classified from the following different aspects
1. According to the diagnosis part, there are ophthalmic probes, heart probes, abdominal probes, cranial probes, intracavitary probes, etc.;
2. Classified by application method, there are extracorporeal probes, intracorporeal probes, and biopsy probes;
3. According to the number of vibration elements used in the transducer in the probe, there are unit probes and multi-element probes;
In the ultrasonic inspection process, the transmission and reception of ultrasonic waves are realized through the probe. The performance of the probe directly affects the characteristics of ultrasound and the imaging effect of ultrasound. Commonly used ultrasound probes include phased array probes, convex array probes and linear array probes.
(1) The phased array probe has a small probe surface area, which makes it easy to scan the entire heart through the intercostal space. Generally, the frequency is lower, and the frequency of the pediatric phased array probe is slightly higher. Mainly used for heart scan, intracranial blood vessel scan and lung ultrasound scan, etc.
(2) The convex array probe has a large surface area, which is easy to scan various organs and spaces in the abdominal cavity. Generally, the frequency is low. The convex array probe for children is slightly higher, but the surface area of the probe is smaller. Mainly used for abdominal and pelvic organ scans, FAST scans, pleural effusion scans, and lung ultrasound scans.
(3) Linear array probe The probe surface area is different, there are large and small. Generally, the frequency is relatively high, so the main scans are musculoskeletal, blood vessels, superficial organs and tissues and other parts. With the widespread use of ultrasound in clinical practice, especially the use of four-dimensional ultrasound, 4D probes have become more and more popular.
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