Untreated lung cancer: quantification of systematic distortion of tumor size and shape on non-attenuation-corrected 2-[fluorine-18]fluoro-2-deoxy-D-glucose PET scans.
Radiology
; 201(3): 873-6, 1996 Dec.
Article
en En
| MEDLINE
| ID: mdl-8939245
ABSTRACT
The authors quantitatively evaluated possible distortions of tumor size and shape introduced on non-attenuation-corrected 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG) positron emission tomography (PET) scans obtained in primary lung cancer tumors. Primary lung cancer tumors in 21 patients were measured on x-ray computed tomography (CT), attenuation-corrected FDG PET, and non-attenuation-corrected FDG PET scans. Apparent anteroposterior tumor dimensions on non-attenuation-corrected FDG PET scans were significantly larger (P = .0007; mean difference, 30%) than on attenuation-corrected FDG PET or CT scans (P = .05; mean difference, 28%). Left-to-right tumor dimensions on non-attenuation-corrected FDG PET scans were significantly smaller than on attenuation-corrected FDG PET scans (P = .03; mean difference, 8.5%) but were not significantly different from those on CT scans (P = .3).
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Colección:
01-internacional
Asunto principal:
Tomografía Computarizada de Emisión
/
Desoxiglucosa
/
Neoplasias Pulmonares
Límite:
Aged
/
Aged80
/
Humans
/
Middle aged
Idioma:
En
Revista:
Radiology
Año:
1996
Tipo del documento:
Article
País de afiliación:
Estados Unidos