Irene graduarted from the Queen's Biomedical Computing Program in 2012. She is supervised by Dr. Parvin Mousavi and co-mentored by Drs. Ungi and Fichtinger in the Perk Lab. She is working on spatial accuracy validation of the Perk Tutor image guided needle training system.
Ayukawa, Irene; Ungi, Tamas; Hashtrudi-Zaad, Keyvan; Fichtinger, Gabor; Mousavi, Parvin
Experimental assessment of error in an electromagnetically-tracked ultrasound-guided needle navigation system Journal Article
In: vol. 8671, pp. 543-550, 2013.
@article{fichtinger2013s,
title = {Experimental assessment of error in an electromagnetically-tracked ultrasound-guided needle navigation system},
author = {Irene Ayukawa and Tamas Ungi and Keyvan Hashtrudi-Zaad and Gabor Fichtinger and Parvin Mousavi},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8671/867124/Experimental-assessment-of-error-in-an-electromagnetically-tracked-ultrasound-guided/10.1117/12.2007160.short},
year = {2013},
date = {2013-01-01},
volume = {8671},
pages = {543-550},
publisher = {SPIE},
abstract = {Purpose
Electromagnetic (EM)-tracked ultrasound (US)-guided needle navigation systems have potential use in spinal interventions; however, an assessment of the accuracy of these systems is required. Analysis of these systems involves examining the overall error of the system and the error of its components. The purpose of this study is to estimate the error components in an EM-tracked US-guided needle navigation system, and to determine the relationships between them, specifically for evaluation of US probe calibration.
Methods
The main parts of the experimental setup are the US probe, the tracker, and the needle. The system error is examined by imaging the tracked needle with the US probe. The positional tracking error is tested for multiple needle, probe and reference sensors using a 7×9 grid with 4 cm spacing between points. Needle calibration error is evaluated by pivot calibration. An upper bound for …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Purpose
Electromagnetic (EM)-tracked ultrasound (US)-guided needle navigation systems have potential use in spinal interventions; however, an assessment of the accuracy of these systems is required. Analysis of these systems involves examining the overall error of the system and the error of its components. The purpose of this study is to estimate the error components in an EM-tracked US-guided needle navigation system, and to determine the relationships between them, specifically for evaluation of US probe calibration.
Methods
The main parts of the experimental setup are the US probe, the tracker, and the needle. The system error is examined by imaging the tracked needle with the US probe. The positional tracking error is tested for multiple needle, probe and reference sensors using a 7×9 grid with 4 cm spacing between points. Needle calibration error is evaluated by pivot calibration. An upper bound for …
Electromagnetic (EM)-tracked ultrasound (US)-guided needle navigation systems have potential use in spinal interventions; however, an assessment of the accuracy of these systems is required. Analysis of these systems involves examining the overall error of the system and the error of its components. The purpose of this study is to estimate the error components in an EM-tracked US-guided needle navigation system, and to determine the relationships between them, specifically for evaluation of US probe calibration.
Methods
The main parts of the experimental setup are the US probe, the tracker, and the needle. The system error is examined by imaging the tracked needle with the US probe. The positional tracking error is tested for multiple needle, probe and reference sensors using a 7×9 grid with 4 cm spacing between points. Needle calibration error is evaluated by pivot calibration. An upper bound for …
Ungi, Tamas; Abolmaesumi, Purang; Jalal, Rayhan; Welch, Mattea; Ayukawa, Irene; Nagpal, Simrin; Lasso, Andras; Jaeger, Melanie; Borschneck, Daniel P.; Fichtinger, Gabor; Mousavi, Parvin
Spinal Needle Navigation by Tracked Ultrasound Snapshots Journal Article
In: IEEE Trans Biomed Eng, vol. 59, pp. 2766-2772, 2012.
@article{Ungi2012b,
title = {Spinal Needle Navigation by Tracked Ultrasound Snapshots},
author = {Tamas Ungi and Purang Abolmaesumi and Rayhan Jalal and Mattea Welch and Irene Ayukawa and Simrin Nagpal and Andras Lasso and Melanie Jaeger and Daniel P. Borschneck and Gabor Fichtinger and Parvin Mousavi},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi2012b.pdf},
year = {2012},
date = {2012-10-01},
urldate = {2012-10-01},
journal = {IEEE Trans Biomed Eng},
volume = {59},
pages = {2766-2772},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ungi, Tamas; Abolmaesumi, Purang; Jalal, Rayhan; Welch, Mattea; Ayukawa, Irene; Nagpal, Simrin; Lasso, Andras; Jaeger, Melanie; Borschneck, Daniel P; Fichtinger, Gabor; Mousavi, Parvin
Spinal needle navigation by tracked ultrasound snapshots Journal Article
In: IEEE Transactions on Biomedical Engineering, vol. 59, iss. 10, pp. 2766-2772, 2012.
@article{fichtinger2012c,
title = {Spinal needle navigation by tracked ultrasound snapshots},
author = {Tamas Ungi and Purang Abolmaesumi and Rayhan Jalal and Mattea Welch and Irene Ayukawa and Simrin Nagpal and Andras Lasso and Melanie Jaeger and Daniel P Borschneck and Gabor Fichtinger and Parvin Mousavi},
url = {https://ieeexplore.ieee.org/abstract/document/6247476/},
year = {2012},
date = {2012-01-01},
journal = {IEEE Transactions on Biomedical Engineering},
volume = {59},
issue = {10},
pages = {2766-2772},
publisher = {IEEE},
abstract = {Purpose
Ultrasound (US) guidance in facet joint injections has been reported previously as an alternative to imaging modalities with ionizing radiation. However, this technique has not been adopted in the clinical routine, due to difficulties in the visualization of the target joint in US and simultaneous manipulation of the needle.
Methods
We propose a technique to increase targeting accuracy and efficiency in facet joint injections. This is achieved by electromagnetically tracking the positions of the US transducer and the needle, and recording tracked US snapshots (TUSS). The needle is navigated using the acquired US snapshots.
Results
In cadaveric lamb model, the success rate of facet joint injections by five orthopedic surgery residents significantly increased from 44.4% ( p <; 0.05) with freehand US guidance to 93.3% with TUSS guidance. Needle insertion time significantly decreased from 47.9 ± 34.2 s to 36.1 ± …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Purpose
Ultrasound (US) guidance in facet joint injections has been reported previously as an alternative to imaging modalities with ionizing radiation. However, this technique has not been adopted in the clinical routine, due to difficulties in the visualization of the target joint in US and simultaneous manipulation of the needle.
Methods
We propose a technique to increase targeting accuracy and efficiency in facet joint injections. This is achieved by electromagnetically tracking the positions of the US transducer and the needle, and recording tracked US snapshots (TUSS). The needle is navigated using the acquired US snapshots.
Results
In cadaveric lamb model, the success rate of facet joint injections by five orthopedic surgery residents significantly increased from 44.4% ( p <; 0.05) with freehand US guidance to 93.3% with TUSS guidance. Needle insertion time significantly decreased from 47.9 ± 34.2 s to 36.1 ± …
Ultrasound (US) guidance in facet joint injections has been reported previously as an alternative to imaging modalities with ionizing radiation. However, this technique has not been adopted in the clinical routine, due to difficulties in the visualization of the target joint in US and simultaneous manipulation of the needle.
Methods
We propose a technique to increase targeting accuracy and efficiency in facet joint injections. This is achieved by electromagnetically tracking the positions of the US transducer and the needle, and recording tracked US snapshots (TUSS). The needle is navigated using the acquired US snapshots.
Results
In cadaveric lamb model, the success rate of facet joint injections by five orthopedic surgery residents significantly increased from 44.4% ( p <; 0.05) with freehand US guidance to 93.3% with TUSS guidance. Needle insertion time significantly decreased from 47.9 ± 34.2 s to 36.1 ± …