Tracking the Position and Orientation of Ultrasound Probe for Image-Guided Surgical Procedures

2015 ◽  
pp. 511-524
Author(s):  
Basem Yousef
2008 ◽  
Vol 2 (2) ◽  
Author(s):  
Basem Fayez Yousef ◽  
Rajni V. Patel ◽  
Mehrdad Moallem

Automating image-guided therapy and registering a medical image to a patient require knowledge of the locations of both the medical image source (e.g., ultrasound) and the surgical tool with respect to a global coordinate system that is known relative to the patient. Also, sturdiness of the medical instrumentations is essential. A novel compact stabilizer-tracker integrated assembly is designed to serve as a holder that can be used to support, manipulate in six degrees-of-freedom, and firmly lock-in-place ultrasound imaging probes and other instruments for use in image-guided surgery as well as to provide the position and orientation of the probe in 3D space with respect to a known reference origin. The stabilizer’s configuration allows a clinician to easily manipulate an ultrasound probe in 3D space, and demonstrate improved sturdiness when locked. A reliable validation technique using forward kinematics was used to evaluate the performance of the holder. Performance tests show that the tracker assembly can acquire the position and orientation of the ultrasound probe with an average displacement accuracy of 0.66mm and roll, pitch, and yaw angular accuracies of 0.24deg, 0.38deg, and 0.19deg, respectively. The improved sturdiness demonstrated by the compact-sized stabilizer and the high accuracy of the tracking mechanism make the integrated holder mechanism well suited for use in image-guided robot-assisted brachytherapy. It is anticipated that this will lead to improvement in accuracy and clinical outcomes for the procedure. The novel tracker can also be used to acquire the positions and orientations of other passive mechanisms of complex designs.


2021 ◽  
Author(s):  
Tsukasa Koike ◽  
Taichi Kin ◽  
Shota Tanaka ◽  
Katsuya Sato ◽  
Tatsuya Uchida ◽  
...  

Abstract BACKGROUND Image-guided systems improve the safety, functional outcome, and overall survival of neurosurgery but require extensive equipment. OBJECTIVE To develop an image-guided surgery system that combines the brain surface photographic texture (BSP-T) captured during surgery with 3-dimensional computer graphics (3DCG) using projection mapping. METHODS Patients who underwent initial surgery with brain tumors were prospectively enrolled. The texture of the 3DCG (3DCG-T) was obtained from 3DCG under similar conditions as those when capturing the brain surface photographs. The position and orientation at the time of 3DCG-T acquisition were used as the reference. The correct position and orientation of the BSP-T were obtained by aligning the BSP-T with the 3DCG-T using normalized mutual information. The BSP-T was combined with and displayed on the 3DCG using projection mapping. This mixed-reality projection mapping (MRPM) was used prospectively in 15 patients (mean age 46.6 yr, 6 males). The difference between the centerlines of surface blood vessels on the BSP-T and 3DCG constituted the target registration error (TRE) and was measured in 16 fields of the craniotomy area. We also measured the time required for image processing. RESULTS The TRE was measured at 158 locations in the 15 patients, with an average of 1.19 ± 0.14 mm (mean ± standard error). The average image processing time was 16.58 min. CONCLUSION Our MRPM method does not require extensive equipment while presenting information of patients’ anatomy together with medical images in the same coordinate system. It has the potential to improve patient safety.


Urology ◽  
2015 ◽  
Vol 85 (4) ◽  
pp. 953-958 ◽  
Author(s):  
Jason C. Sea ◽  
Clinton D. Bahler ◽  
Joshua D. Ring ◽  
Sable Amstutz ◽  
Narendra T. Sanghvi ◽  
...  

2016 ◽  
Vol 43 (6Part27) ◽  
pp. 3671-3671
Author(s):  
S Camps ◽  
F Verhaegen ◽  
P de With ◽  
D Fontanarosa

2003 ◽  
Vol 8 (2) ◽  
pp. 98-106 ◽  
Author(s):  
P. Jannin ◽  
M. Raimbault ◽  
X. Morandi ◽  
L. Riffaud ◽  
B. Gibaud

Sign in / Sign up

Export Citation Format

Share Document