2019
DOI: 10.1038/s41394-019-0164-1
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Establishing the inter-rater reliability of spinal cord damage manual measurement using magnetic resonance imaging

Abstract: Study design Retrospective study. Objectives To establish the inter-rater reliability in the quantitative evaluation of spinal cord damage following cervical incomplete spinal cord injury (SCI) utilizing magnetic resonance imaging (MRI). MRI was used to perform manual measurements of the cranial and caudal boundaries of edema, edema length, midsagittal tissue bridge ratio, axial damage ratio, and edema volume in 10 participants with cervical incomplete SCI. Setting Academic university setting. Methods Structur… Show more

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Cited by 13 publications
(5 citation statements)
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“…Lastly, we did not analyze the inter-rater variability as the data were gathered from multiple sites and there were no overlapping subjects across sites. Previous studies (37,38) have reported that MRI measures of spinal cord damage (e.g., edema length, midsagittal tissue bridge ratio, axial damage ratio) exhibit high-to-excellent levels of inter-rater reliability.…”
Section: Discussionmentioning
confidence: 99%
“…Lastly, we did not analyze the inter-rater variability as the data were gathered from multiple sites and there were no overlapping subjects across sites. Previous studies (37,38) have reported that MRI measures of spinal cord damage (e.g., edema length, midsagittal tissue bridge ratio, axial damage ratio) exhibit high-to-excellent levels of inter-rater reliability.…”
Section: Discussionmentioning
confidence: 99%
“…Axial damage ratio was calculated for each slice as Area lesion /Area cord , then the maximum ratio was used for each participant. In previous work, this method was demonstrated to have high inter- and intra-rater reliability [ 13 , 33 , 34 ]. Lesion length was measured using the midsagittal T2-weighted image as the most cranial to most caudal ends of the lesion hyperintensity [ 17 , 35 , 36 , 37 , 38 ].…”
Section: Methodsmentioning
confidence: 99%
“…Lesion length was measured using the midsagittal T2-weighted image as the most cranial to most caudal ends of the lesion hyperintensity [ 17 , 35 , 36 , 37 , 38 ]. This method has been demonstrated to have high inter- and intra-rater reliability based on previous work from a co-author’s laboratory [ 34 ].…”
Section: Methodsmentioning
confidence: 99%
“…The lesion size and extent of spared tissue, assessed on midsagittal T2w images 3-4 weeks following SCI, predicts post-SCI recovery at 12 months follow-up in paraplegic patients of both traumatic and ischemic etiology [9,10,35]. Preserved tissue bridges can be accurately and reliably quantified from a time point of 3-4 weeks post-SCI when widespread and dynamically changing edema and hemorrhage have largely resolved [9,36]. Midsagittal tissue bridges are defined as the hypointense regions located ventrally and dorsally between the relatively hyperintense cystic cavity and the cerebrospinal fluid-filled spinal canal assessed on midsagittal T2w images (see Fig.…”
mentioning
confidence: 99%
“…Midsagittal tissue bridges are defined as the hypointense regions located ventrally and dorsally between the relatively hyperintense cystic cavity and the cerebrospinal fluid-filled spinal canal assessed on midsagittal T2w images (see Fig. 2) [9,36]. While no injury-spared intramedullary neural tissue is observed in most sensorimotor complete SCI patients (i.e.…”
mentioning
confidence: 99%