Brilliance 64 slice machine

CT scan was done on Philips Brilliance 64 slice machine per hospital protocol and radiologists reported it. Each of the five lobes of both lungs was looked at for the presence of inflammatory abnormalities, including ground-glass opacities, mixed ground-glass opacities, or consolidation. Each lobe was awarded 0–4 points, depending on the percentage of the involved lobe: 0 (0%), 1 (1–25%), 2 (26–50%), 3 (51–75%), or 4 (76–100%) and total involvement of the lung parenchyma was graded as grade 1 having <25%, grade 2 having 26–50%, grade 3 having 51–75%, or grade 4 having 76–100% lung parenchymal involvement.

This study was an observational cross-sectional study involving normal Indian subjects who attended a tertiary care hospital from 2013 to 2016. The sample size was 125 and included males and females aged 18 years or older. All subjects underwent craniovertebral junction CT scans as a part of the evaluation for a head injury. Only those with normal reports were included in the study. Exclusion criteria were cervical spine fracture/dislocation, rheumatoid arthritis, previous history of surgery, tumors, or cervical myelopathy with a spinal canal diameter of ≤12 mm. The evaluation of CT scans was carried out using Horos software ver. 2.0.2 (Horos Project, Annapolis, MD, USA) on a MacBook. The CT scans were recorded using a CT Philips Brilliance 64-slice machine (equipment no., 52952467; Philips, Amsterdam, Netherlands) with a slice thickness of 1 mm.
Various dimensions were analyzed, as described below. The extent of lateral masses of the atlas vertebra is illustrated in Figs. 1 and 2 [1 ].