An MRI term for the thickness of an imaging slice. Because slice profiles are not sharply edged, the distance between the points at half the sensitivity of the maximum (full width at half maximum) is used to determine thickness.
Reconstructed slice thickness does notdirectly affect x-ray exposure; however, this factor does determine how many photons contribute to the final image in the filtered back-projection technique, with noise being inversely proportional to the square root of reconstructed slice thickness.
The largest dimension was measured on a single-glass slide in 13 (17%) cases, was measured across 2 or 3 slides within a single slice in 8 (10%) cases, and was calculated by multiplying the average slice thickness by the number of slices involved in 57 (73%) cases.
As presented above, the slice thickness, which now arrived very small, at 50 [micro] m , reduces as much as possible stair-stepping errors in the Z axis of the object and permits manufacturing of micro-electromechanical systems with feature size ranged at highest limit of 50 [micro] m.
The imaging protocol included spin echo sagittal T1-weighted images (T1WI) (TR 450, TE 12-15, slice thickness 4 mm, matrix 192-256x256 and field of view 16-18 cm), axial and sagittal fast spin echo fat saturated proton density (PD) and T2-weighted images (T2WI).
Summary of breast biopsy MR imaging protocol Sagittal and axial localizer Pre-contrast T1-weighted axial 2-mm slice thickness and sagittal with fat saturation Post-contrast T1-weighted axial 2-mmslice thickness and sagittal with fat saturation 0.