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KMID : 0361620120470020140
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Journal of the Korean Orthopaedic Association
2012 Volume.47 No. 2 p.140 ~ p.145
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Comparison of Ultrasonography and Magnetic Resonance Imaging in Measurement of Lumbar Spine Anatomic Structures
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Shim Dae-Moo
Kim Tae-Kyun
Oh Sung-Kyun
Lee Seok-Jung
Yang Hee-Seok
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Abstract
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Purpose: The aim of this study was to determine the usefulness of ultrasonography for lumbar anatomical structure measurement.
Materials and Methods : From January 2011 to April 2011, 41 patients (22 males, 19 females) with back pain who visited the outpatient department and underwent lumbar magnetic resonance imaging (MRI) were selected. In each level of L4 and L5, we measured the longest distance and horizontal distance between each inferior articular process based off a spinous process. We also measured the distance between the spinous process tip and the vertebral body posterior surface and the thickness and width of the multifi dus muscle. All distances were measured with ultrasonography and MRI and the two measurement results were compared.
Results: Using ultrasonography and MRI, we measured the distance between the spinous process tip and the posterior surface of the body. The distances were 39.16±8.71 mm/39.53±6.01 mm at L4 and 38.32±9.66 mm/37.74±10.54 mm at L5. The right multifi dus muscle thickness measurements were 32.13±10.79 mm/33.84±9 mm at L4 and 31.32±10.04 mm/32.84±12.28 mm at L5. The measuring distance between the spinous process center to the posterior vertebral body surface and thickness of multifi dus muscles by ultrasonography and MRI had signifi cant correlations (p<0.05).
Conclusion: Limitations still exist in measuring the structure of lumbar anatomy with ultrasonography. However, measuring the distance between the spinous process center to the vertebral body posterior surface and multifi dus muscle thickness was effective.
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KEYWORD
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lumbar spine, ultrasonography, MRI
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