The impact of fiducial distribution on headset-based registration in image-guided sinus surgery

被引：20

作者：

Knott, PD

Maurer, CR

Gallivan, R

Roh, HJ

Citardi, MJ

机构：

[1] Cleveland Clin Fdn, Dept Otolaryngol & Communicat Dis, Head & Neck Inst, Cleveland, OH 44195 USA

[2] Stanford Univ, Dept Neurosurg, Image Guidance Labs, Stanford, CA 94305 USA

[3] Pusan Natl Univ Hosp, Dept Otolaryngol, Pusan, South Korea

来源：

OTOLARYNGOLOGY-HEAD AND NECK SURGERY | 2004年 / 131卷 / 05期

关键词：

D O I：

10.1016/j.otohns.2004.03.045

中图分类号：

R76 [耳鼻咽喉科学];

学科分类号：

100213 ;

摘要：

OBJECTIVE: The objective of this study was to assess registration error due to fiducial configuration for the ENT headsets for the CBYON Suite (CBYON, Mountain View, CA) and InstaTrak (GEMS Navigation and Visualization, Waukesha, WI). STUDY DESIGN: Axial CT scans (1-mm slice thickness) were obtained of for 24 cadaveric heads using the CBYON headset and for 23 cadaveric heads using the GEMS headset. The CBYON and GEMS NAV software were used to calculate the fiducial registration error (FRE). Fiducial localization error (FLE) was estimated from FRE. Theoretical target registration error (TRE) was calculated at 11 targets. RESULTS: The FRE for CBYON and GEMS NAV was 0.69 mm and 0.27 mm, respectively. The theoretical TRE for CBYON and GEMS NAV was 0.41 mm and 0.30 mm, respectively. The theoretical TRE was greater at targets posterior in the sinus cavities. CONCLUSION: Theoretical TRE values for both ENT headsets are less than clinically observed TRE. Clinically observed TRE is likely due to repositioning accuracy. EBM rating: B-2.

引用

页码：666 / 672

页数：7

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