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Interventional non-vascular, Lung, Oncology, CT, PET-CT, Image manipulation / Reconstruction, Biopsy, Perception image, Instrumentation, Image registration, Cancer
G. Bizzarri, A. Bianchini, D. Valle, L. Di Vito, L. Velari, S. De Nuntis, A. Dell'Era; Albano Laziale/IT
Preliminary tests with the Styrofoam phantom demonstrated no influence from the ferromagnetic environment if the volume of interest was at least 1meter away from the CT gantry.
In this setting the coregistration was accurate and immediate (Fig 9).
35 samples were obtained on the 15 lesions (maximum diameter ranging from 40 to 15 mm.; average 25) in 15 patients (age 45-85,
with an average of 72).
In all cases,
a single step procedure was possible without the necessity of needle repositioning.
All biopsies were diagnostic (metastases 3,
lung carcinomas 12).
No major complications were encountered.
4 pneumothorax and 3 parenchymal hemorrhages resolved spontaneously.
PVNG biopsies required an average time of 35 minutes (ranging from 25 to 45 minutes).
An analysis of MPR of the CT scan was obtained to assess the position of the coaxial needle; an accuracy of 5 mm or less was demonstrated in all reconstruction planes (when compared with the intended position) for all cases.
In the majority of patients,
a complex path of the needle was demonstrated with angulations in all axes of the scanned volume (Fig 12).