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European Radiology Experimental
Fig. 6 | European Radiology Experimental

Fig. 6

From: Development and implementation of an ultralow-dose CT protocol for the assessment of cerebrospinal shunts in adult hydrocephalus

Fig. 6

Specificity of ULD CT with pure IR for shunt evaluation. Abdominal radiograph portion of a plain radiographic shunt series (PRSS) demonstrating a kink in the shunt tube (arrow in a). ULD CT with pure IR three-dimensional reconstruction confirming the presence of a contour change in the shunt tubing at the corresponding level (arrow in b). Axial (42-mm reconstructed slice thickness) and coronal (34-mm reconstructed slice thickness) ULD CT images showing that the ‘kink’ seen on plain radiograph correlates with the peritoneal entry site of the shunt and was therefore a false positive (c and d). CT Computed tomography, IR Iterative reconstruction, PRSS Plain radiographic shunt series, ULD Ultralow dose

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