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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: Short-term predictive potential of quantitative assessment of spinal cord impairment in patients undergoing French-door Laminoplasty for degenerative cervical myelopathy: preliminary results of an exploratory study exploiting intraoperative ultrasound data

Fig. 2

a Traverse images at the maximum level of patient with degenerative cervical myelopathy (DCM), depicting the measurements required to calculate the compression ratio (CR). Measurements for CR of intraoperative ultrasound imaging (IOUSI), including the anteroposterior diameter (APD) and the traverse diameter (TD) of the spinal cord. b) Midsagittal IOUSI of patient with DCM, depicting the measurements required to calculate maximum spinal cord compression (MSCC). Measurements for MSCC of intraoperative ultrasound imaging (IOUSI), including the width of the spinal cord at the narrowest site (APDmin) and the width of the spinal cord at the normal site (APDnormal). c Midsagittal IOUSI of patient with DCM, depicting the measurements required to calculate the gray value ratio (Rgray). A midsagittal intraoperative ultrasound imaging (IOUSI) of a patient, the measurements required to calculate the gray value ratio (Rgray), including a 0.1 cm2 measurement of the gray value at the site of the maximum compression level of the spinal cord (Gmaximum) and 0.1 cm2 gray value measurements at the lesion-free site (Gnormal)

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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