Published 2006 | Version v1
Journal article Metadata-only

Combined 18F-FDG-PET/CT imaging of the head and neck. An approach to metal artifact correction

Creators

  • 1. Univ. Hospital Muenster (Germany). Dept. of Nuclear Medicine
  • 2. Univ. Hospital Essen (Germany)
  • 3. Timaq medical imaging Inc, Zuerich (Switzerland)
  • 4. Siemens Medical Solutions, Computed Tomography, Forchheim (Germany)

Description

PET/CT imaging is particularly promising for head/neck malignancies, but dental implants lead to biased CT attenuation and PET activity values following CT-based attenuation correction (CT-AC). Objective: Here, we implement a metal artifact correction procedure (MAR) as part of the CT-AC for PET/CT imaging. Results: Phantom studies indicate a maximum quantitative bias in CT and PET of 1000 HU and 30%, which is reduced to 230 HU and 6%, respectively following MAR. These results were verified in selected patients. Conclusion: Artifacts and biases from dental implants can be reduced in PET/CT imaging by applying a simple MAR as part of the CT-AC. (orig.)

Additional details

Publishing Information

Journal Title
Nuklearmedizin
Journal Volume
45
Journal Issue
5
Journal Page Range
p. 219-222
ISSN
0029-5566
CODEN
NUKLDV

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38010118
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Descriptors DEI
ALGORITHMS; CORRECTIONS; FLUORINE 18; FLUORODEOXYGLUCOSE; HEAD; IMPLANTS; METALS; NECK; PATIENTS; PHANTOMS; POSITRON COMPUTED TOMOGRAPHY; VALIDATION
Descriptors DEC
ANTIMETABOLITES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BODY; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC TECHNIQUES; DRUGS; ELEMENTS; EMISSION COMPUTED TOMOGRAPHY; FLUORINE ISOTOPES; HOURS LIVING RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL LOGIC; MOCKUP; NANOSECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; STRUCTURAL MODELS; TESTING; TOMOGRAPHY