Article Figures & Data
Figures
- Fig 1.
Spatial resolution scores for images in the axial, coronal, and Poschl planes, averaged across individual structures in each imaging plane. The scale assessed UHR-IR images relative to zUHR images: 1 = inferior resolution with degraded visualization, 2 = slightly inferior resolution without affecting visualization; 3 = equivalent, 4 = slightly superior resolution without affecting visualization, 5 = superior resolution with improved visualization. The means are shown as lined bars, with the value above each bar. Statistical significance was determined with the Wilcoxon signed rank test.
- Fig 2.
Comparison of spatial resolution of the round window. Representative axial CT images of the round window of the same patient scanned with the zUHR technique (A) and UHR-IR technique (B). The UHR-IR technique produced superior spatial resolution and lower image noise.
- Fig 3.
Comparison of the spatial resolution of the incudomallear joint. Representative axial images of the incudomallear joint of the same patient scanned with the zUHR technique (A) and UHR-IR technique (B). The UHR-IR technique produced superior spatial resolution and lower image noise.
- Fig 4.
Lower image noise in images acquired with UHR-IR. Image noise was measured at the posterior fossa in axial images from each of the 13 datasets by using the zUHR and UHR-IR techniques.
- Fig 5.
Spatial resolution and image noise in images from a representative patient. Axial (A and B) and coronal (C and D) CT images of the same patient scanned with the zUHR technique (A and C) and UHR-IR technique (B and D). Substantial noise reduction was achieved by using the UHR-IR technique.
Tables
Spatial resolution scores and P values
Round Window Incudomallear Joint Basal Turn Spiral Lamina Oval Window Scutum Incudostapedial Joint Mean score 4.05 4.05 2.69 3.71 3.53 3.38 P value <.001 <.001 .0083 .0011 .0037 .0248
