Ultrasound, limited, joint or other nonvascular extremity structure(s) (eg, joint space, peri-articular tendon[s], muscle[s], nerve[s], other soft-tissue structure[s], or soft-tissue mass[es]), real-time with image documentation
CPT4 code
Name of the Procedure:
Ultrasound, limited, joint or other nonvascular extremity structure(s) | Diagnostic Musculoskeletal Ultrasound
Summary
An ultrasound, limited to joints or structures like tendons, muscles, nerves, and soft tissue masses, uses high-frequency sound waves to produce real-time images. It helps in evaluating and diagnosing various conditions related to these soft-tissue structures.
Purpose
The procedure is used to diagnose and evaluate conditions affecting extremity joints and soft tissues, including inflammation, injuries, and masses. The primary goal is to provide accurate images to aid in identifying the underlying cause of discomfort or dysfunction.
Indications
- Joint pain or swelling
- Suspected tendon tears or inflammation
- Muscle or nerve injuries
- Detection of soft tissue masses or cysts
- Guidance for joint or soft tissue aspiration or injection
Preparation
- Generally, no special preparation is required.
- Patients may need to wear loose-fitting clothing or a gown.
- No fasting or medication adjustments necessary unless specified by the doctor.
Procedure Description
- The patient is positioned to allow easy access to the area being examined.
- A special gel is applied to the skin to enhance sound wave transmission.
- A handheld transducer (ultrasound probe) is moved over the skin surface.
- The transducer emits sound waves, capturing images displayed on a monitor in real-time.
Images are documented for further analysis by the healthcare provider.
Tools: Ultrasound machine, transducer, conductive gel.
Duration
The procedure typically takes about 15-30 minutes, depending on the complexity and the area being examined.
Setting
It can be performed in various settings, including hospitals, outpatient clinics, and imaging centers.
Personnel
- Radiologist or specially trained technician/sonographer
- Occasionally, a referring physician may be involved
Risks and Complications
- Generally considered safe with no radiation exposure.
Very rare risk of skin irritation from the conductive gel.
Benefits
- Non-invasive and painless
- Provides real-time imaging, facilitating immediate diagnosis
High-resolution images of soft tissues
Recovery
- No recovery time needed; patients can resume normal activities immediately.
- Follow-up appointments may be scheduled based on findings.
Alternatives
- MRI or CT scans for more detailed imaging
- Pros: More detailed imaging of soft tissues.
- Cons: More expensive, may require contrast agents, involves radiation (CT).
Patient Experience
- Patients may feel slight pressure as the transducer moves over the skin.
- The gel may feel cool but is harmless.
- No known discomfort after the procedure.
- Immediate resumption of daily activities without restrictions.