PET/CT Image Artifacts Caused by the Arms
Küçük Resim Yok
Tarih
2021
Yazarlar
Sarikaya, Ismet
Sarikaya, Ali
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Soc Nuclear Medicine Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
PET/CT images are usually obtained in the arms-up position in patients with no head and neck pathology and in the arms-down position to image the head and neck area. The arms usually cause artifacts regardless of up or down positioning. These artifacts include beam hardening, scatter, truncation, and cold areas (cold artifacts) in obese or large patients; motion artifacts; implanted-metal-object artifacts; and artifacts related to radiotracer extravasation at the injection site. In this review article, we will discuss the mechanisms of these artifacts and suggest solutions to reduce or eliminate them, such as reviewing the non-attenuation-corrected PET images, performing extended-field-of-view reconstruction, not applying scatter correction, and using software to correct beam-hardening, scatter, and truncation artifacts. We will present various PET/CT images before and after corrections for such artifacts.
Açıklama
Anahtar Kelimeler
PET/CT, Artifacts, Arms, Truncation, Cold Artifacts, Ct, Recognition, Extension, Field
Kaynak
Journal Of Nuclear Medicine Technology
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
49
Sayı
1
