Results 11 to 20 of about 1,906,510 (288)

Comparison of Supervised and Unsupervised Approaches for the Generation of Synthetic CT from Cone-Beam CT [PDF]

Diagnostics, 2021
Due to major artifacts and uncalibrated Hounsfield units (HU), cone-beam computed tomography (CBCT) cannot be used readily for diagnostics and therapy planning purposes.
Matteo Rossi, Pietro Cerveri
doaj   +7 more sources

MRI‐based synthetic CT in the detection of knee osteoarthritis: Comparison with CT [PDF]

Journal of Orthopaedic Research, 2023
AbstractMagnetic resonance Imaging is the gold standard for assessment of soft tissues; however, X‐ray‐based techniques are required for evaluating bone‐related pathologies. This study evaluated the performance of synthetic computed tomography (sCT), a novel MRI‐based bone visualization technique, compared with CT, for the scoring of knee ...
Saeed Arbabi, Wouter Foppen, Willem Paul Gielis, Marijn van Stralen, Mylène Jansen, Vahid Arbabi, Pim A. de Jong, Harrie Weinans, Peter Seevinck   +8 more
core   +8 more sources

Abdominal synthetic CT generation from MR Dixon images using a U-net trained with ‘semi-synthetic’ CT data

Physics in Medicine & Biology, 2020
Abstract Magnetic resonance imaging (MRI) is gaining popularity in guiding radiation treatment for intrahepatic cancers due to its superior soft tissue contrast and potential of monitoring individual motion and liver function. This study investigates a deep learning-based method that generates synthetic CT volumes from T1-weighted MR ...
Lianli Liu, Adam Johansson, Yue Cao, Janell Dow, Theodore S Lawrence, James M Balter   +5 more
openaire   +4 more sources

Analysis of dose using CBCT and synthetic CT during head and neck radiotherapy: A single centre feasibility study [PDF]

Technical Innovations & Patient Support in Radiation Oncology, 2020
Objectives: The study aimed to assess the suitability of deformable image registration (DIR) software to generate synthetic CT (sCT) scans for dose verification during radiotherapy to the head and neck.
Lisa K Hay, Claire Paterson, Philip McLoone, Eliane Miguel-Chumacero, Ronan Valentine, Suzanne Currie, Derek Grose, Stefano Schipani, Christina Wilson, Ioanna Nixon, Allan James, Aileen Duffton   +11 more
doaj   +4 more sources

Generation of Synthetic-Pseudo MR Images from Real CT Images

Tomography, 2022
This study aimed to generate synthetic MR images from real CT images. CT# mean and standard deviation of a moving window across every pixel in the reconstructed CT images were mapped to their corresponding tissue-mimicking types.
Isam F. Abu-Qasmieh, Ihssan S. Masad, Hiam H. Al-Quran, Khaled Z. Alawneh   +3 more
doaj   +2 more sources

Synthetic Hounsfield units from spectral CT data

Physics in Medicine and Biology, 2012
Beam-hardening-free synthetic images with absolute CT numbers that radiologists are used to can be constructed from spectral CT data by forming 'dichromatic" images after basis decomposition. The CT numbers are accurate for all tissues and the method does not require additional reconstruction.
Bornefalk, Hans,
openaire   +3 more sources

Synthetic CT Generation from MRI Using Improved DualGAN [PDF]

CoRR, 2019
Synthetic CT image generation from MRI scan is necessary to create radiotherapy plans without the need of co-registered MRI and CT scans. The chosen baseline adversarial model with cycle consistency permits unpaired image-to-image translation. Perceptual loss function term and coordinate convolutional layer were added to improve the quality of ...
Denis Prokopenko, Joël Valentin Stadelmann, Heinrich Schulz, Steffen Renisch, Dmitry V. Dylov   +4 more
openaire   +3 more sources

MRI-based synthetic CT of the hip: can it be an alternative to conventional CT in the evaluation of osseous morphology?

European Radiology, 2022
MRI is the gold standard for soft tissue evaluation in the hip joint. However, CT is superior to MRI in providing clear visualization of bony morphology. The aim of this study is to test the equivalency of MRI-based synthetic CT to conventional CT in quantitatively assessing bony morphology of the hip.A prospective study was performed.
Lieve Morbée, Min Chen, Thomas Van Den Berghe, Eva Schiettecatte, Robert Gosselin, Nele Herregods, Lennart B. O. Jans   +6 more
openaire   +4 more sources

MRI-based synthetic CT of the lumbar spine: Geometric measurements for surgery planning in comparison with CT

European Journal of Radiology, 2021
MRI is the imaging modality of choice for soft tissue-related spine disease. However, CT is superior to MRI in providing clear visualization of bony morphology. The purpose of this study is to test equivalency of MRI-based synthetic CT to conventional CT in quantitatively assessing bony morphology of the lumbar spine.A prospective study with an ...
Lieve, Morbée, Min, Chen, Nele, Herregods, Pim, Pullens, Lennart B O, Jans   +4 more
openaire   +3 more sources

Towards MR contrast independent synthetic CT generation

Zeitschrift für Medizinische Physik
The use of synthetic CT (sCT) in the radiotherapy workflow would reduce costs and scan time while removing the uncertainties around working with both MR and CT modalities.
Attila Simkó, Mikael Bylund, Gustav Jönsson, Tommy Löfstedt, Anders Garpebring, Tufve Nyholm, Joakim Jonsson   +6 more
doaj   +4 more sources