Related Experiment Video
Updated: Dec 21, 2025
07:31
Image Acquisition using Portable Sonography for Emergency Airway Management
Published on: September 28, 2022
2.8K
Locating stridor caused by tumor compression by using a multichannel electronic stethoscope: a case report
Fushun Hsu1,2, Cheng-Hung How3, Shang-Ran Huang4
1Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.
Journal of Clinical Monitoring and Computing
|May 11, 2020
Summary
This study introduces sound-source localization technology to pinpoint respiratory abnormalities, like stridor caused by tumors. This non-invasive method aids in diagnosing pulmonary diseases, especially when advanced imaging is unavailable.
Area of Science:
- Pulmonary Medicine
- Biomedical Engineering
- Acoustic Signal Processing
Background:
- Chronic obstructive pulmonary disease (COPD) patients often present with complex respiratory symptoms.
- Tumor compression in the lungs can cause localized airway obstruction and abnormal breathing sounds.
- Accurate localization of respiratory sound sources is crucial for diagnosis.
Observation:
- A localized stridor (125 Hz) was detected in a patient with a lung tumor using a multichannel electronic stethoscope.
- An energy-based localization algorithm was applied to identify the stridor's origin.
- The algorithm's results correlated well with computed tomography and bronchoscopy findings.
Findings:
- Sound-source localization successfully identified the stridor source caused by tumor compression.
- The technique demonstrated compatibility with established diagnostic imaging modalities.
- Localization accuracy was quantified with a mean radius of 9.40 mm and radial standard deviation of 14.97 mm.
Implications:
- Respiratory sound-source localization offers a potential non-invasive diagnostic aid for pulmonary diseases.
- This technology can assist in early detection and localization of airway abnormalities.
- Further development is needed to enhance the precision of sound-source estimation for clinical application.
Related Concept Videos
01:31Respiratory System Abnormal Finding II: Palpation and Auscultation
1.2K
In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
1.2K
01:28Physical Assessment of the Respiratory Tract IV: Auscultation
1.8K
Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
1.8K
01:26Endoscopic Studies II: Thoracocentesis
1.1K
Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
1.1K
01:28Tracheostomy: Procedure and Tubes
2.3K
A tracheostomy is a surgical procedure that creates an artificial opening into the trachea, typically at the second or third cartilaginous ring level. This opening allows the insertion of a tracheostomy tube, which can replace an endotracheal tube, provide mechanical ventilation, bypass an upper airway obstruction, or remove accumulated tracheobronchial secretions.
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
2.3K
01:30Respiratory System Abnormal Finding I: Inspection and Percussion
652
Respiratory system abnormalities are a significant concern in healthcare due to their potential to indicate underlying severe conditions like Chronic Obstructive Pulmonary Disease (COPD), asthma, and pneumonia. These abnormalities can often be detected through physical examination methods like inspection and percussion.
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
652
01:23Tracheostomy Suctioning II: Procedure
1.2K
Tracheostomy suctioning is a vital nursing procedure that involves removing secretions from the tracheostomy tube to maintain airway patency and prevent respiratory complications. Nurses need to understand the proper technique for tracheostomy suctioning to ensure patient safety and comfort. In this guide, we will outline the step-by-step process for performing tracheostomy suctioning, including preparing the sterile field, donning personal protective equipment (PPE), lubricating and connecting...
1.2K