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Ultrasound, retroperitoneal (eg, renal, aorta, nodes), real time with image documentation; complete
CPT4 code
Ultrasound, Retroperitoneal (e.g., Renal, Aorta, Nodes), Real Time with Image Documentation; Complete
Common Name(s):
- Retroperitoneal Ultrasound
- Abdominal Ultrasound
- Renal Ultrasound
Summary
A retroperitoneal ultrasound is a non-invasive imaging procedure that uses high-frequency sound waves to create real-time images of the structures in the retroperitoneal space, including the kidneys, aorta, and lymph nodes.
Purpose
The procedure aims to evaluate:
- Abdominal pain or swelling
- Suspected kidney stones or tumors
- Abdominal aortic aneurysm
- Enlarged lymph nodes
The goals include diagnosing or ruling out conditions, assessing the size and shape of organs, and guiding further treatment.
Indications
- Unexplained abdominal pain
- Blood in urine (hematuria)
- High blood pressure (hypertension)
- Suspected kidney or bladder infection
- Follow-up on known conditions like kidney stones or aneurysms
Preparation
- Patients may need to fast for several hours beforehand.
- Drink plenty of water to fill the bladder if pelvic structures are also being examined.
- Wear comfortable clothing.
- Inform the technician of any existing medical conditions or medications.
Procedure Description
- The patient lies on an examination table.
- A water-based gel is applied to the skin over the abdomen to ensure proper sound wave transmission.
- A transducer (handheld device) is moved over the skin to capture images.
- The technician may ask the patient to change positions to better visualize different organs.
- Real-time images are displayed on a monitor and documented for analysis.
Duration
The procedure typically takes about 30-45 minutes.
Setting
- Hospital radiology department
- Outpatient diagnostic imaging center
- Specialized clinics
Personnel
- Radiologist or ultrasound technician (sonographer)
- Sometimes a radiologist may interpret the images in real-time
Risks and Complications
- Very minimal risks as it is a non-invasive procedure
- No exposure to ionizing radiation
Benefits
- Painless and safe with no side effects
- Provides detailed images to aid in accurate diagnosis
- Immediate information available for timely medical intervention
Recovery
- No recovery time needed; patients can resume normal activities immediately
- Follow-up appointments may be scheduled based on findings
Alternatives
- CT Scan (Computed Tomography)
- Pros: More detailed images
- Cons: Exposure to radiation
- MRI (Magnetic Resonance Imaging)
- Pros: High-resolution images without using radiation
- Cons: More expensive and time-consuming
- X-ray
- Pros: Quick and accessible
- Cons: Less detailed for soft tissues
Patient Experience
- Generally painless; may feel mild discomfort from the pressure of the transducer.
- Gel may feel cold when first applied.
- Pain management is not typically needed as the procedure is non-invasive and doesn't cause significant discomfort.