Ebus Landmarks
Ebus Landmarks - Related Videos
04:47
Systematic Bronchoscopy: the Four Landmarks Approach
0 Views •
Cited by 4 •
2023
Here, we present a protocol to navigate the bronchial maze in a structured manner, splitting the bronchoscopy into a stepwise approach-the four landmarks approach.
05:22
Systematic Endobronchial Ultrasound - The Six Landmarks Approach
0 Views •
Cited by 1 •
2023
Endobronchial ultrasound-guided sampling using transbronchial needle aspiration plays a key role in staging and diagnosing lung cancer. We propose a systematic stepwise approach dividing the procedure into six landmarks that should be taught to new operators.
10:23
Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
0 Views •
Cited by 2 •
2023
Presented here is a detailed protocol for the conduction of three-dimensional cephalometric analysis with the use of human cone beam computed tomography scans.
08:42
Where You Cut Matters: A Dissection and Analysis Guide for the Spatial Orientation of the Mouse Retina from Ocular Landmarks
0 Views •
Cited by 21 •
2018
This protocol provides a comprehensive dissection and analysis guide for the use of deep ocular landmarks, s-opsin immunohistochemistry, Retistruct, and custom code to accurately and reliably orient the isolated mouse retina in anatomical space.
06:03
Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
0 Views •
Cited by 12 •
2015
We describe the novel use of electromagnetic navigational guided transthoracic needle aspiration for the pathologic assessment of human lung nodules.
FAQs
Orientation depends on linking recognizable airway, vascular, and nodal features to a consistent anatomic sequence. The operator can use the trachea and main bronchi as airway references, then relate pulmonary vessels and mediastinal or hilar lymph-node stations to the bronchoscope’s position. This reduces uncertainty when selecting a sampling target.
Real-time ultrasound adds information that the airway view alone cannot provide: it displays structures through the airway wall while the bronchoscope is positioned. This allows the operator to correlate endobronchial location with nearby vessels and lymph-node stations at the time of evaluation. The result is more deliberate localization for needle sampling.
Standardized landmark recognition matters because different examinations can otherwise vary in how structures and nodal stations are located. Using a consistent sequence supports procedural reproducibility, meaning that observations and sampling decisions can be compared more reliably across evaluations. In cancer studies, that consistency strengthens investigations involving lesion localization and lymph-node assessment.
Airway and vascular landmarks primarily establish orientation, whereas mediastinal and hilar lymph-node stations identify potential sampling locations. Reading these features together is important: airway position alone does not fully specify a target, and a node station is interpreted in relation to surrounding anatomy. This combined approach supports accurate needle placement.
A basic workflow begins by examining the trachea and main bronchi with the bronchoscope. The ultrasound transducer then provides real-time views through the airway wall, while pulmonary vessels and mediastinal or hilar lymph-node stations are located in sequence. Once the intended station is identified, EBUS-guided needle sampling can be directed to it.
Researchers apply these landmarks when evaluating suspected thoracic lesions and lymph-node involvement in lung-cancer investigations. The method can support characterization of lesions and assessment of nodal involvement without surgical exploration. Because landmark recognition links sampled material to a defined anatomic station, it also helps investigators interpret specimens within a staging-focused study.