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Related Concept Videos

Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

486
Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
486

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Surgical Process Modeling of Workflow and Performance in Image-Guided Bronchoscopy.

Tatiana A Rypinski1,2, Roberto F Casal3, Parvathy S Pillai1,2

  • 1Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.

Annals of Biomedical Engineering
|October 11, 2025
PubMed
Summary
This summary is machine-generated.

Robot-assisted bronchoscopy with cone-beam CT guidance improves targeting accuracy for lung lesions but increases procedure time and radiation dose compared to conventional methods. Surgical Process Modeling quantifies these trade-offs for optimizing clinical workflows.

Keywords:
BronchoscopyImage guidanceImplementation scienceOptimizationSurgical process model

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Area of Science:

  • Pulmonology and Interventional Radiology
  • Medical Robotics and Imaging Technology

Background:

  • Transbronchial sampling of lung lesions is crucial for diagnosis and treatment.
  • Emerging technologies like cone-beam CT (CBCT) and robotic assistance aim to enhance bronchoscopic procedures.
  • Conventional bronchoscopy relies on 2D fluoroscopy and radial probe endobronchial ultrasound (RP-EBUS) for guidance.

Purpose of the Study:

  • To quantify and compare the performance of conventional bronchoscopy versus robot-assisted bronchoscopy with CBCT guidance using Surgical Process Modeling (SPM).
  • To evaluate procedural outcomes including cycle time, radiation dose, and geometric accuracy.

Main Methods:

  • Statistical SPMs were developed and validated for both conventional and CBCT-guided robot-assisted bronchoscopy.
  • 9000 simulation runs were performed for each method to analyze performance differences.
  • The influence of patient factors (BMI) and lesion characteristics (location, size) was assessed.

Main Results:

  • CBCT-guided robot-assisted bronchoscopy showed a 14% increase in median cycle time (45.3 min vs. 39.6 min) and a 3.2x increase in median patient radiation dose.
  • Geometric targeting significantly improved, reducing the rate of missed targets from 22% with conventional bronchoscopy to 2% with CBCT-guided robot-assisted bronchoscopy.
  • SPM provided clear 3D visualization of performance, aiding in workflow standardization.

Conclusions:

  • Surgical Process Modeling effectively quantifies performance differences between conventional and robot-assisted bronchoscopy for lung lesion biopsy.
  • CBCT-guided robot-assisted bronchoscopy offers substantial gains in geometric accuracy at the cost of increased procedure time and radiation dose.
  • SPM provides valuable insights for early-stage implementation of new technologies and optimization of clinical workflows.