Application of Mobile Helical Computed Tomography in Combatting COVID-19

A reconstruction method for helical computed tomography

This paper presents a method for volumetric reconstruction from Helical Computerized Tomography (H-CT) data which are collected with a fan beam source. An interpretation of the HCT data in terms of the Axial Computerized Tomography (ACT) data is provided. This analysis indicates that the H-CT data for positive and negative detector angles can be combined to form periodically nonuniform hexagona...

Lung Cancer Screening by Helical Computed Tomography

The relationship between laboratory and chest computed tomography scan findings and severity of COVID-19 cases: a single center study

Background: Para-clinical abnormalities are considered as predictors of COVID-19 severity. We aimed at evaluate the relationship between laboratory and chest computed tomography (CT) scan findings and severity of COVID-19 cases. Materials and methods: We performed a retrospective study on confirmed COVID-19 patients in Amir-Al-Momenin hospital, Tehran, Iran, from February 20, 2020 to April 19,...

Comparison of simulated cone beam computed tomography to conventional helical computed tomography for imaging of rhinosinusitis.

OBJECTIVES/HYPOTHESIS Cone beam computed tomography (CBCT) has emerged as a low radiation dose alternative to traditional computed tomography (CT) to evaluate the paranasal sinuses. The purpose of our study was to determine how often clinically important findings would be missed if CBCT was used routinely for sinus imaging. STUDY DESIGN Retrospective review. METHODS We evaluated all maxillo...

Mobile computed tomography : early experience in Korea.

OBJECTIVE With improved technology, the values of intraoperative computed tomography (iCT) have been reevaluated. We describe our early clinical experience with a mobile CT (mCT) system for iCT and discuss its clinical applications, advantages and limitations. METHODS Compared with intraoperative magnetic resonance imaging, this mCT system has no need for major reconstruction of a preexisting...