Journal of computer assisted tomography · 2019
Superiority of Multidetector Computed Tomography With 3-Dimensional Volume Rendering Over Plain Radiography in the Assessment of Spinal Surgical Instrumentation Complications in Patients With Cancer.
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Debnam James M, Chi Tzehping L, Ketonen Leena, Wei Wei, Guha-Thakurta Nandita
Аннотация
OBJECTIVE: The objective of this study was to compare multidetector computed tomography (MDCT) images with volume-rendered translucent display (VRTLD) series to plain radiographs for evaluating spinal surgical instrumentation after resection and reconstruction for spinal malignancies.
METHODS: In 44 patients with tumor resection and spinal reconstruction, 17 with complications, 3 neuroradiologists evaluated plain radiographs, MDCT images alone, VRTLD images alone, and MDCT images with VRTLD images for identifying complications in 3 categories: subsidence/migration, construct fracture, and screw loosening. Each category was scored as 1 (complications), 2 (no complications), or 3 (not sure), and the minimum score was used for analyses. Clinical/surgical outcomes were the reference standard.
RESULTS: Sensitivity, specificity, and accuracy (95% confidence interval), respectively, were as follows: MDCT/VRTLD, 100%, 100%, 100% (91.96%-100.00%); MDCT alone, 88.24%, 100%, 95.45% (84.53%-99.44%); VRTLD alone, 82.35%, 96.3%, 90.91% (78.33%-97.47%); plain radiographs, 52.94%, 100%, 81.82% (67.29%-91.81%).
CONCLUSIONS: Multidetector computed tomography with VRTLD series seems best for evaluation of spinal instrumentation after tumor resection and reconstruction.
METHODS: In 44 patients with tumor resection and spinal reconstruction, 17 with complications, 3 neuroradiologists evaluated plain radiographs, MDCT images alone, VRTLD images alone, and MDCT images with VRTLD images for identifying complications in 3 categories: subsidence/migration, construct fracture, and screw loosening. Each category was scored as 1 (complications), 2 (no complications), or 3 (not sure), and the minimum score was used for analyses. Clinical/surgical outcomes were the reference standard.
RESULTS: Sensitivity, specificity, and accuracy (95% confidence interval), respectively, were as follows: MDCT/VRTLD, 100%, 100%, 100% (91.96%-100.00%); MDCT alone, 88.24%, 100%, 95.45% (84.53%-99.44%); VRTLD alone, 82.35%, 96.3%, 90.91% (78.33%-97.47%); plain radiographs, 52.94%, 100%, 81.82% (67.29%-91.81%).
CONCLUSIONS: Multidetector computed tomography with VRTLD series seems best for evaluation of spinal instrumentation after tumor resection and reconstruction.