Overview
Ultrasound guidance uses real-time sonographic imaging to visualize soft tissue structures — nerves, muscles, tendons, joint capsules, and vascular structures — during interventional procedures. Unlike fluoroscopy, which images bony structures using X-ray, ultrasound excels at visualizing soft tissue targets: peripheral nerves, fascial planes, joint recesses, and muscle trigger points. For procedures targeting peripheral nerves or superficial joints, ultrasound often provides superior visualization compared to fluoroscopy — and eliminates radiation exposure entirely. Dr. Migdale uses ultrasound guidance for peripheral nerve blocks, joint injections, trigger point injections, and neuromodulation lead placements where applicable.
Ultrasound vs. Fluoroscopy
Fluoroscopy is ideal for spine-directed procedures where bony landmarks guide needle placement. Ultrasound is ideal for procedures targeting soft tissue structures — peripheral nerves, superficial joints, tendons, and bursae. For many peripheral nerve blocks, ultrasound allows direct real-time visualization of the nerve itself, the needle, and the spread of injectate around the nerve — providing a level of precision not achievable with fluoroscopy. Some procedures use both modalities simultaneously.
Advantages of Ultrasound Guidance
Ultrasound guidance provides: no radiation exposure; real-time visualization of soft tissues and neurovascular structures; direct confirmation of needle-to-nerve proximity; ability to visualize injectate spread in real time; portability; and the ability to perform dynamic assessment (examining structures while the patient moves). These advantages make ultrasound the preferred guidance modality for many peripheral procedures.
Common Ultrasound-Guided Procedures
Dr. Migdale uses ultrasound guidance for: peripheral nerve blocks (occipital, suprascapular, ilioinguinal, femoral, sciatic, and others); joint injections (shoulder, hip, knee, SI joint); trigger point injections (with direct visualization of the muscle and trigger point); and neuromodulation lead placement for peripheral nerve stimulation targets.