Purpose To determine distances between patient centroid and gantry isocenter during CT
imaging of the chest, abdomen, and/or pelvis, and to evaluate differences based on patient …

Objectives: For patients with intracranial hemorrhage (ICH), routine follow-up computed
tomography (CT) scans are typically required to monitor the progression of intracranial …

Purpose The objective of our study was to assess the effect of patient vertical off‐centering
on organ dose in chest CT with tube current modulation. Methods For this purpose …

Purpose The purpose of this study was to simulate and validate organ doses from different
computed tomography (CT) localizer radiograph geometries using Monte Carlo methods for …

Purpose: To evaluate treatment outcomes and toxicity in patients with cervical cancer (CC)
treated with volumetric modulated arc therapy (VMAT), followed by three-dimensional high …

Background and purpose Although it is fundamental for optimal scanner operation, it is
generally accepted that accurate patient centring cannot always be achieved. This review …

The purpose of this work is to evaluate the impacts of body off-center positioning on CT
numbers and dose index CTDIv of two scanners from GE. HD750 and APEX scanners were …

Objectives To assess the effect of vertical off-centering in tube current modulation (TCM) on
effective-dose and image-noise in reduced-dose (RD) chest-CT. Methods One-hundred …

Introduction Patient positioning is known to impact CT number and patient dose. The aim of
this study was to report current practice and the accuracy of the knowledge of radiographers …

Introduction Patient positioning is an essential consideration for the optimisation of radiation
dose during CT examinations. The study objectives seek to explore the effects of vertical off …