PET/CT artifacts.
Todd M. Blodgett,Ajeet S Mehta,Amar S. Mehta,Charles M. Laymon,Jonathan Carney,David W. Townsend +5 more
58
TL;DR: There are several artifacts encountered in positron emission tomography/computed tomographic (PET/CT) imaging, including attenuation correction (AC) artifacts associated with using CT for AC, and these artifacts are identified and characterized.
read more
About: This article is published in Clinical Imaging. The article was published on 01 Jan 2011. and is currently open access. The article focuses on the topics: PET-CT & Positron emission tomography.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Metal artifact reduction strategies for improved attenuation correction in hybrid PET/CT imaging
TL;DR: The origins of metallic artifacts and their impact on clinical PET/CT imaging are discussed, and a brief overview of proposed metal artifact reduction (MAR) methods and their advantages and drawbacks is presented.
Analysis of statistical texture features for automatic lung cancer detection in PET/CT images
K. Punithavathy,M. M. Ramya,Sumathi Poobal +2 more
- 30 Apr 2015
TL;DR: The proposed method provides better classification and cancer detection with an overall accuracy of 92.67% and was carried out using PET/CT images of lung cancer patients and implemented using MATLAB.
69
Diagnostic accuracy of 18F-FDG PET/CT for detecting recurrence in patients with primary skeletal Ewing sarcoma
Punit Sharma,Bangkim Chandra Khangembam,KC Sudhir Suman,Harmandeep Singh,Sishir Rastogi,Shah Alam Khan,Sameer Bakhshi,Sanjay Thulkar,Chandrasekhar Bal,Arun Malhotra,Rajesh Kumar +10 more
TL;DR: 18F-FDG PET/CT demonstrates high diagnostic accuracy for detecting recurrence in patients with primary skeletal Ewing sarcoma, when it is suspected (clinically or on imaging) or during routine follow-up.
49
The role of (18)F-FDG PET/CT in the detection of osteosarcoma recurrence.
Andrea Angelini,Francesco Ceci,Paolo Castellucci,Tiziano Graziani,Giulia Polverari,Giulia Trovarelli,Emanuela Palmerini,Stefano Ferrari,Stefano Fanti,Pietro Ruggieri +9 more
TL;DR: 18F-FDG-PET/CT showed valuable results for detecting recurrence(s) in osteosarcoma patients with suspicious of relapse after treatment, particularly in the detection of local relapse and lung metastasis.
39
Radiation Safety and Accidental Radiation Exposures in Nuclear Medicine
TL;DR: In this article , the authors proposed that all activities are performed according to well established procedures, and that all actions are supported by regular quality assurance/QC procedures, including checking the request/prescription, patient's data and the details of the requested procedure, and measuring the dispensed activity with a calibrated activity meter prior to administration.
30
References
Attenuation correction for a combined 3D PET/CT scanner
TL;DR: The proof of principle of CT-based attenuation correction of 3D positron emission tomography (PET) data is demonstrated by using scans of bone and soft tissue equivalent phantoms and scans of humans to conclude that using CT information is a feasible way to obtain attenuation Correction factors for 3D PET.
PET attenuation coefficients from CT images: experimental evaluation of the transformation of CT into PET 511-keV attenuation coefficients.
TL;DR: The resulting transformation is essentially equivalent to the transmission-based attenuation correction for human tissue and may assign inaccurate attenuation coefficients which will also affect the correction in neighbouring tissue for non-human material.
Artifacts at PET and PET/CT caused by metallic hip prosthetic material.
Gerhard W. Goerres,Sibylle Ziegler,Cyrill Burger,Thomas Berthold,Gustav K. von Schulthess,Alfred Buck +5 more
TL;DR: Hip prosthetic material and a steel rod were scanned in a water bath of fluorine 18 fluorodeoxyglucose with positron emission tomographic and PET/computed tomographic scanners to evaluate the generation of artifacts adjacent to the metal.
196
•Journal Article
Application of Intravenous Contrast in PET/CT: Does It Really Introduce Significant Attenuation Correction Error?
TL;DR: No statistically or clinically significant spuriously elevated SUV level that might potentially interfere with the diagnostic value of PET/CT was identified as a result of the application of intravenous iodinated contrast.
178
Impact of metallic dental implants on CT-based attenuation correction in a combined PET/CT scanner.
TL;DR: Data analysis of region of interests revealed thatAttenuation correction of PET emission data using an artifactual CT map yields false values in regions nearby artifacts caused by dental metalwork, which may falsely estimate PET quantitative studies and may disturb the visual interpretation of PET scan.
174