Comparison of ultrasonographic renal excursion to fluoroscopic diaphragmatic excursion for the assessment of diaphragmatic function in patients with high cervical cord injury.

Objective: To compare the renal excursion detected by ultrasonography with the diaphragmatic excursion recorded by fluoroscopy in estimating the diaphragmatic function in patients with high cervical cord injury.

Design: Prospective, blinded comparative study.

Setting: A rehabilitation hospital affiliated with a medical university.