A Hybrid Method for Real-Time Bronchoscope Tracking Using Contour Registration and Synchronous EMT Data (PHYSICS)

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SAMAVATI MEHDI; AHMADIAN ALIREZA; ABTAHI HAMIDREZA; Golnabi Amirhossein; Arjmandi Asl Reza

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Radiology Year:2019 | Volume:16 | Issue:2 Page(s): 0-0

Download Full-Text

View:

290

Download:

223

Cites:

Information Journal Paper

Title

A Hybrid Method for Real-Time Bronchoscope Tracking Using Contour Registration and Synchronous EMT Data (PHYSICS)

Author(s)

Keywords

CT-Guided Bronchoscopy

Bronchoscopy Navigation

Contour-Based 2D/3D Image Registration

Hybrid Tracking

Abstract

Background: Bronchoscopy is a difficult procedure for physicians to relate CT slices to bronchoscopic video images and maneuver the bronchoscope inside the airway tree. CT-Guided Bronchoscopy systems have been developed in the last decades to help physicians maneuver the bronchoscope inside the airway tree in a fast and precise way. Objectives: We aimed to develop a continuous guiding method for bronchoscopy with high tracking accuracy by matching bronchoscopy image contours with CT contours, and speed it up by using synchronous electromagnetic tracker (EMT) data, and to evaluate it on airway phantom with simulated respiratory motion. Materials and Methods: This method works based on two approaches combined together: 1) Contours detected in real bronchoscopy images and finding their equivalents in CT space. Contours are detected by a fast algorithm and CT contours are mapped by them in a perspective scheme. 2) EMT data which is used in a frame by frame approach to approximate the position of bronchoscope compared to its previous position. This differential approach causes a small search space and as a result higher tracking speed. The novelty of this work is using bronchoscopy image contours instead of the whole image combined with synchronous EMT data. This approach causes faster tracking and there is no need for landmark selection or centerline consideration before performing the main bronchoscopy. Results: The experimental results of implementing the proposed method show that this method can track the bronchoscope continuously. For evaluating the accuracy and robustness of tracking, virtual bronchoscopy images were generated at each frame position reported by the method and compared to corresponding real bronchoscopy image using mutual information. The experimental results present that this method can track a bronchoscope accurately and robustly in 96. 3% of frames. Conclusion: Using contours instead of the whole image for registration can provide a continuous real-time bronchoscopy tracking procedure. Using EMT data in differential mode makes the proposed method robust to simulated respiratory motion.

Cites

No record.

References

No record.

Cite

APA: Copy

SAMAVATI, MEHDI, AHMADIAN, ALIREZA, ABTAHI, HAMIDREZA, Golnabi, Amirhossein, & Arjmandi Asl, Reza. (2019). A Hybrid Method for Real-Time Bronchoscope Tracking Using Contour Registration and Synchronous EMT Data (PHYSICS). IRANIAN JOURNAL OF RADIOLOGY, 16(2), 0-0. SID. https://sid.ir/paper/284505/en

Vancouver: Copy

SAMAVATI MEHDI, AHMADIAN ALIREZA, ABTAHI HAMIDREZA, Golnabi Amirhossein, Arjmandi Asl Reza. A Hybrid Method for Real-Time Bronchoscope Tracking Using Contour Registration and Synchronous EMT Data (PHYSICS). IRANIAN JOURNAL OF RADIOLOGY[Internet]. 2019;16(2):0-0. Available from: https://sid.ir/paper/284505/en

IEEE: Copy

MEHDI SAMAVATI, ALIREZA AHMADIAN, HAMIDREZA ABTAHI, Amirhossein Golnabi, and Reza Arjmandi Asl, “A Hybrid Method for Real-Time Bronchoscope Tracking Using Contour Registration and Synchronous EMT Data (PHYSICS),” IRANIAN JOURNAL OF RADIOLOGY, vol. 16, no. 2, pp. 0–0, 2019, [Online]. Available: https://sid.ir/paper/284505/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops