EDUS had a Sn of 0.91 and Sp of 0.84 for SBO (compared to 0.02 and 0.67 respectively for Abd Xray)
Patients with crampy<unk> al pain, paroxysms, and nausea/vomiting
US showing dilated loops of bowel, bidirectional peristalsis, "keyboard" sign, and free fluid
US showing dilated loops of bowel, bidirectional peristalsis, "keyboard" sign, and free fluid
Use curvilinear/phased array probe (linear probe can be used in very thin patients)
Scan the entire<unk>  using "lawn-mower" technique of horizontal tracks (or other systematic method)
Scanning over dependent areas yields the most success
Identify dilated loops of bowel
Scanning over dependent areas yields the most success
SBO criteria include:
Dilated loops of bowel >2.5cm
Bidirectional peristalsis
Additional findings include:
"Keyboard" sign which are finger-like projections that represent plicae circulares
Bowel wall edema
Intraabdominal free fluid
Sonographic transition point
Dilated loops of bowel >2.5cm
Bidirectional peristalsis
"Keyboard" sign which are finger-like projections that represent plicae circulares
Bowel wall edema
Intraabdominal free fluid
Sonographic transition point
Ultrasound: Abdomen
Ultrasound: Pelvic
Ultrasound: Probe orientation
Ultrasound: Lungs
Ultrasound: Pharyngeal
Ultrasound: Signs
Acute abdominal series
Ultrasound: Tendons