Comparison of High Field MRI and Color Doppler Ultrasound in the Diagnosis of Piriformis Syndrome

doi:10.7517/issn.1674-0475.191212

Abstract

Abstract: The purpose of this study was to investigate the value of high field MRI and color Doppler ultrasound in the diagnosis of piriformis syndrome. From June 2017 to June 2019, 31 patients with piriformis syndrome who were admitted to our hospital and diagnosed clinically were selected as the observation group; 31 healthy people who were examined in our hospital at the same time were selected as the control group. The signal intensity of sciatic nerve and muscle was detected by high field MRI, and the thickness of piriformis and sciatic nerve was detected by color Doppler ultrasound. The results showed that the thickness of piriformis muscle in the observation group was significantly higher than that in the control group (P<0.05). The nerve signal strength/muscle signal strength of T2WI of the affected side was signficantly higher than that of control group (P<0.05). The area under curve (AUC) of piriformis muscle thickness and nerve signal intensity/muscle signal intensity in the diagnosis of piriformis syndrome was 0.836 and 0.869, respectively. the AUC of the two combined diagnosis of piriformis syndrome was 0.945. High field MRI and color doppler ultrasound have certain diagnostic value, and the detection rate of color Doppler ultrasound is higher in patients with piriformis syndrome. The combination of the two can further improve the diagnostic value of piriformis syndrome.

Key words: piriformis syndrome, high field magnetic resonance imaging, color doppler ultrasound, diagnosis

JIANG Yimin, GUO Qingzhi, LI Wen. Comparison of High Field MRI and Color Doppler Ultrasound in the Diagnosis of Piriformis Syndrome[J]. Imaging Science and Photochemistry, 2020, 38(3): 555-559.

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