Basic Techniques and Technical Tips for Ultrasound-guided Needle Puncture

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Ultrasound-guided needle puncture is essential for both vascular and nonvascular interventions. Ultrasound is widely available in various clinical settings, requires no ionizing radiation, offers color Doppler imaging, and enables real-time visualization of the needle position during puncture. However, ultrasound imaging has some limitations, such as signal attenuation in deeper tissues and the inability to penetrate bone or air, and it is a heavily operator-dependent modality. Here, we outline the basic techniques and technical tips for ultrasound-guided needle puncture.