A region-based anatomical landmark configuration for sinus surgery using image guided navigation system: a phantom-study.

Authors:
Saeed Mohagheghi
Saeed Mohagheghi
Tehran University of Medical Sciences
Iran
Saeed Mohaqeqi, PhD
Saeed Mohaqeqi, PhD
Shahed University
Deep Learning, Medical Image Processing, Python Programming
Karaj, Alborz | Iran (Islamic Republic of)

J Craniomaxillofac Surg 2014 Sep 4;42(6):816-24. Epub 2013 Dec 4.

Department of ENT of Vali-e-Asr Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: To evaluate the current beliefs about the ways to reduce target registration error (TRE) values in image guided Sinus surgery by rearranging the fiducial configuration, and investigating the best configurations for various surgical fields in a phantom study.

Methods: A new CT-compatible skull phantom consisting of implanted targets was designed to enable direct measurement of TRE in four fields of sinus surgery, Frontal, Ethmoid, Sphenoid and Maxillary. The effects of different landmark configurations on TRE values, measured by the Parsiss-IV navigation system were investigated to find the best landmark arrangement for each region, and compared to the TRE prediction formula to assess the clinically accepted landmark selection approaches based on this formula.

Results: It was shown that smaller values of TRE could be attained by arranging the center of the fiducials to be more focused on the surgery target. The addition of more fiducials and keeping non-linear arrangement of landmark would not necessarily decrease the TRE value.

Conclusion: Optimizing the landmark configuration is important for increasing the localization accuracy in image guided sinus surgery. The common beliefs accepted in the clinical community about the ways to reduce the TRE are very general and should be adapted to specific field of image guided surgery.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jcms.2013.11.019DOI Listing
September 2014
9 Reads
1 Citation
2.600 Impact Factor

Publication Analysis

Top Keywords

image guided
16
sinus surgery
16
tre values
8
navigation system
8
ways reduce
8
landmark configuration
8
guided sinus
8
tre
7
landmark
6
surgery
6
assess clinically
4
clinically accepted
4
prediction formula
4
compared tre
4
tre prediction
4
formula assess
4
approaches based
4
formularesults smaller
4
smaller values
4
values tre
4

Similar Publications