Suprapubic (Pelvic) Ultrasound View
The suprapubic (pelvic) view is the ultrasound approach that visualizes urine in the bladder, performed by placing the transducer in the transverse plane immediately cephalad to the pubic bone. 1
Technique and Probe Placement
The probe is positioned in the transverse plane directly above the pubic symphysis, which maximizes the acoustic window provided by the fluid-filled bladder. 1
The probe is systematically rocked from the inferior aspect to the dome of the bladder through all tissue planes to ensure complete visualization. 1
The probe may be rotated 90 degrees counter-clockwise into the sagittal plane for additional visualization of the bladder and surrounding pelvic structures. 1
Alternative Nomenclature
This view is also known by several other names depending on the clinical context:
- Retrovesical or rectovesical view (in males) 1
- Retrouterine, rectouterine, or pouch of Douglas view (in females) 1
Optimal Scanning Conditions
A full bladder is ideal for visualizing the bladder and surrounding pelvic spaces, though adequate views can often be obtained with a partially filled bladder. 1
When the bladder is empty, large volumes of free fluid may still be detected, but smaller amounts cannot be reliably excluded. 1
Technical Adjustments
- Gain settings usually need to be decreased in this view to compensate for posterior acoustic enhancement caused by the fluid-filled bladder. 1
Clinical Applications Beyond Urine Visualization
The bladder should be imaged to assess volume, evidence of distal ureteral obstruction, and calculi as part of a complete abdominal or renal ultrasound examination. 1, 2
This view represents the most dependent peritoneal space in the supine position, making it critical for detecting free fluid in trauma evaluations. 1