Needle-tip localization for CT-guided biopsies.
Exact localization of the needle tip during CT-guided needle biopsy is important for accurate diagnosis. Using a phantom model we evaluated different methods for localization. The most reliable method was direct visualization of a distinct feature of the needle such as a notch near the needle tip. Visualization of a black shadowing artifact and review of adjacent CT images to the one used for needle tip placement were less reliable.
Yankelevitz
D F
DF
Department of Radiology, New York Hospital, Cornell Medical Center, NY 10021.
Henschke
C I
CI
D016477:Artifacts; D001707:Biopsy, Needle / Q000379:methods*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging* / Q000473:pathology; D008961:Models, Structural; D009339:Needles; D014057:Tomography, X-Ray Computed