Ultrasound is considered better for injections because it allows healthcare providers to visualize the needle's position in real-time, enabling precise placement of the medication directly into the target tissue while avoiding nearby nerves and blood vessels, leading to a more accurate and safer injection compared to traditional "blind" methods that rely solely on palpation; additionally, ultrasound does not expose the patient to radiation like fluoroscopy, another imaging method used for injections. 

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Key points about ultrasound-guided injections:

• Real-time visualization: Ultrasound provides a live image of the needle as it moves through tissues, allowing the practitioner to see exactly where the needle is positioned. 

• Improved accuracy: By visualizing the target area and surrounding structures, ultrasound guidance minimizes the risk of injecting medication into the wrong location. 

• Reduced complications: By identifying nearby nerves and blood vessels, ultrasound can help avoid accidental injections into these structures. 

• Non-invasive and safe: Unlike fluoroscopy, which uses radiation, ultrasound is a non-invasive imaging modality with no radiation exposure to the patient