Conebeam CT of the head and neck, part 1: physical principles

AC Miracle, SK Mukherji - American Journal of …, 2009 - Am Soc Neuroradiology
Conebeam x-ray CT (CBCT) is a developing imaging technique designed to provide
relatively low-dose high-spatial-resolution visualization of high-contrast structures in the …

C-arm cone-beam CT: general principles and technical considerations for use in interventional radiology

RC Orth, MJ Wallace, MD Kuo… - Journal of vascular and …, 2009 - Elsevier
Digital flat-panel detector cone-beam computed tomography (CBCT) has recently been
adapted for use with C-arm systems. This configuration provides projection radiography …

CBCT‐Based synthetic CT image generation using conditional denoising diffusion probabilistic model

J Peng, RLJ Qiu, JF Wynne, CW Chang, S Pan… - Medical …, 2024 - Wiley Online Library
Background Daily or weekly cone‐beam computed tomography (CBCT) scans are
commonly used for accurate patient positioning during the image‐guided radiotherapy …

Improving CBCT quality to CT level using deep learning with generative adversarial network

Y Zhang, N Yue, MY Su, B Liu, Y Ding, Y Zhou… - Medical …, 2021 - Wiley Online Library
Purpose To improve image quality and computed tomography (CT) number accuracy of
daily cone beam CT (CBCT) through a deep learning methodology with generative …

[HTML][HTML] Cone beam computed tomography image quality improvement using a deep convolutional neural network

S Kida, T Nakamoto, M Nakano, K Nawa, A Haga… - Cureus, 2018 - ncbi.nlm.nih.gov
Methods CBCT and planning computed tomography (pCT) image pairs from 20 prostate
cancer patients were selected. Subsequently, each pCT volume was pre-aligned to the …

Modelling the physics in the iterative reconstruction for transmission computed tomography

J Nuyts, B De Man, JA Fessler… - Physics in Medicine …, 2013 - iopscience.iop.org
There is an increasing interest in iterative reconstruction (IR) as a key tool to improve quality
and increase applicability of x-ray CT imaging. IR has the ability to significantly reduce …

A general framework and review of scatter correction methods in x‐ray cone‐beam computerized tomography. Part 1: scatter compensation approaches

EP Rührnschopf, K Klingenbeck - Medical physics, 2011 - Wiley Online Library
Since scattered radiation in cone‐beam volume CT implies severe degradation of CT
images by quantification errors, artifacts, and noise increase, scatter suppression is one of …

A simple, direct method for x‐ray scatter estimation and correction in digital radiography and cone‐beam CT

JH Siewerdsen, MJ Daly, B Bakhtiar… - Medical …, 2006 - Wiley Online Library
X‐ray scatter poses a significant limitation to image quality in cone‐beam CT (CBCT),
resulting in contrast reduction, image artifacts, and lack of CT number accuracy. We report …

Patient dose from kilovoltage cone beam computed tomography imaging in radiation therapy

MK Islam, TG Purdie, BD Norrlinger, H Alasti… - Medical …, 2006 - Wiley Online Library
Kilovoltage cone‐beam computerized tomography (kV‐CBCT) systems integrated into the
gantry of linear accelerators can be used to acquire high‐resolution volumetric images of the …

Volume CT with a flat‐panel detector on a mobile, isocentric C‐arm: pre‐clinical investigation in guidance of minimally invasive surgery

JH Siewerdsen, DJ Moseley, S Burch… - Medical …, 2005 - Wiley Online Library
A mobile isocentric C‐arm (Siemens PowerMobil) has been modified in our laboratory to
include a large area flat‐panel detector (in place of the x‐ray image intensifier), providing …