Medical ultrasound scanner (hereinafter referred to as "ultrasound machine") is a non-invasive diagnostic tool widely used in clinical medicine. The correct use of ultrasound scanners by beginners can improve the effectiveness of diagnosis and treatment. This article will introduce how to correctly use medical ultrasound scanners for beginners.

1. Be familiar with the basic knowledge of ultrasound machines

Before using an ultrasound machine, it is necessary to first understand the basic knowledge of the ultrasound machine, such as the physical characteristics of ultrasound, the working principle of the ultrasound machine, the type of probe, and so on. These basic knowledge can be obtained by reading relevant books, papers, or attending training courses.

2. Select the appropriate probe

Different sites and conditions require different types of probes, and selecting the appropriate probe is very important for correct diagnosis. Generally speaking, probes are divided into linear probes, convex probes, array probes, etc., with different application ranges. For example, linear probes are suitable for the examination of soft tissue and blood vessels, convex probes are suitable for the examination of heart and abdominal organs, and array probes are suitable for three-dimensional imaging. When selecting a probe, it should be selected as needed.

3. Prepare the ultrasonic coupling agent

Before using the ultrasound machine, it is necessary to apply an appropriate amount of ultrasound coupling agent. Ultrasonic couplant is a conductive medium that can form good contact between the probe and the skin, increase the transmission efficiency of ultrasound, and improve image clarity. Commonly used ultrasound coupling agents include water, gelatin, and ethanol.

4. Select the appropriate scanning method

Ultrasound machines have various scanning methods, such as B-ultrasound, M-ultrasound, color Doppler, and so on. Different scanning methods correspond to different diagnostic purposes. Therefore, when using an ultrasound machine, it is necessary to select the appropriate scanning method according to the needs. For example, B-ultrasound is mainly used to examine the morphology of organs and tissues, M-ultrasound is mainly used to examine moving organs and fluids, and color Doppler can be used to detect blood flow in blood vessels.

5. Adjust the parameters of the ultrasonic machine

The parameter settings of ultrasound machines directly affect the clarity and resolution of images. Therefore, when using an ultrasound machine, it is necessary to adjust the parameters of the ultrasound machine according to the specific situation. For example, increasing ultrasound power can improve penetration depth and signal strength, but it can increase the risk of thermal damage to tissues; Reducing ultrasound power can reduce the risk of thermal damage to tissues, but may lead to a decrease in image clarity.

6. Pay attention to health and safety

When using an ultrasound machine, it is necessary to pay attention to hygiene and safety. For example, disinfect the probe before using it to avoid cross infection; During the use of the ultrasound machine, it is necessary to keep hands clean and observe the patient's condition at all times to avoid accidents.

7. Interpretation of diagnostic results

Using an ultrasound machine correctly is only half the work, and timely and reasonable interpretation of the diagnostic results is also crucial. Beginners should gradually accumulate medical knowledge, refer to relevant literature, and multiple practical experiences