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Home Science & Environment Medical Research

AI-guided lung ultrasound marks an advance in tuberculosis diagnosis

April 13, 2025
in Medical Research
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A study presented at ESCMID Global 2025 has demonstrated that an AI-powered lung ultrasound outperforms human experts by 9% in diagnosing pulmonary tuberculosis (TB).

The ULTR-AI suite analyzes images from portable, smartphone-connected ultrasound devices, offering a sputum-free, rapid, and scalable alternative for TB detection. The results exceed the World Health Organization (WHO) benchmarks for pulmonary tuberculosis diagnosis, marking a major opportunity for accessible and efficient TB triage.

Despite previous global declines, TB rates rose by 4.6% from 2020 to 2023. Early screening and rapid diagnosis are critical components of the WHO’s ‘End TB Strategy,’ yet many high-burden countries experience substantial patient dropouts at the diagnostic stage due to the high cost of chest X-ray equipment and a shortage of trained radiologists.

“These challenges underscore the urgent need for more accessible diagnostic tools,” explained lead study author, Dr. Véronique Suttels. The work is currently published on the preprint server SSRN.

“The ULTR-AI suite leverages deep learning algorithms to interpret lung ultrasound in real time, making the tool more accessible for TB triage, especially for minimally trained health care workers in rural areas. By reducing operator dependency and standardizing the test, this technology can help diagnose patients faster and more efficiently.”

The ULTR-AI suite comprises three deep-learning models: ULTR-AI predicts TB directly from lung ultrasound images; ULTR-AI (signs) detects ultrasound patterns as interpreted by human experts; and ULTR-AI (max) uses the highest risk score from both models to optimize accuracy.

The study was conducted at a tertiary urban center in Benin, West Africa. After exclusions, 504 patients were included, with 192 (38%) confirmed to have pulmonary TB. Among the study population, 15% were HIV-positive and 13% had a history of TB.

A standardized 14-point lung ultrasound sliding scan protocol was performed, with human experts interpreting images based on typical lung ultrasound findings. A single sputum molecular test (MTB Xpert Ultra) served as the reference standard.

ULTR-AI (max) demonstrated 93% sensitivity and 81% specificity (AUROC 0.93, 95% CI 0.92-0.95), exceeding WHO’s target thresholds of 90% sensitivity and 70% specificity for non-sputum-based TB triage tests.

“Our model clearly detects human-recognizable lung ultrasound findings—like large consolidations and interstitial changes—but an end-to-end deep learning approach captures even subtler features beyond the human eye,” said Dr. Suttels.

“Our hope is that this will help identify early pathological signs such as small sub-centimeter pleural lesions common in TB.”

“A key advantage of our AI models is the immediate turnaround time once they are integrated into an app,” added Dr. Suttels.

“This allows lung ultrasound to function as a true point-of-care test with good diagnostic performance at triage, providing instant results while the patient is still with the health care worker. Faster diagnosis could also improve linkage to care, reducing the risk of patients being lost to follow-up.”

More information:
Véronique Suttels et al, Lung Ultrasound for the Detection of Pulmonary Tuberculosis Using Expert- and AI-Guided Interpretation: A Prospective Cohort Study, SSRN (2025). DOI: 10.2139/ssrn.5174193

Provided by
European Society of Clinical Microbiology and Infectious Diseases

Citation:
AI-guided lung ultrasound marks an advance in tuberculosis diagnosis (2025, April 13)
retrieved 13 April 2025
from https://medicalxpress.com/news/2025-04-ai-lung-ultrasound-advance-tuberculosis.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.



lung
Credit: Pixabay/CC0 Public Domain

A study presented at ESCMID Global 2025 has demonstrated that an AI-powered lung ultrasound outperforms human experts by 9% in diagnosing pulmonary tuberculosis (TB).

The ULTR-AI suite analyzes images from portable, smartphone-connected ultrasound devices, offering a sputum-free, rapid, and scalable alternative for TB detection. The results exceed the World Health Organization (WHO) benchmarks for pulmonary tuberculosis diagnosis, marking a major opportunity for accessible and efficient TB triage.

Despite previous global declines, TB rates rose by 4.6% from 2020 to 2023. Early screening and rapid diagnosis are critical components of the WHO’s ‘End TB Strategy,’ yet many high-burden countries experience substantial patient dropouts at the diagnostic stage due to the high cost of chest X-ray equipment and a shortage of trained radiologists.

“These challenges underscore the urgent need for more accessible diagnostic tools,” explained lead study author, Dr. Véronique Suttels. The work is currently published on the preprint server SSRN.

“The ULTR-AI suite leverages deep learning algorithms to interpret lung ultrasound in real time, making the tool more accessible for TB triage, especially for minimally trained health care workers in rural areas. By reducing operator dependency and standardizing the test, this technology can help diagnose patients faster and more efficiently.”

The ULTR-AI suite comprises three deep-learning models: ULTR-AI predicts TB directly from lung ultrasound images; ULTR-AI (signs) detects ultrasound patterns as interpreted by human experts; and ULTR-AI (max) uses the highest risk score from both models to optimize accuracy.

The study was conducted at a tertiary urban center in Benin, West Africa. After exclusions, 504 patients were included, with 192 (38%) confirmed to have pulmonary TB. Among the study population, 15% were HIV-positive and 13% had a history of TB.

A standardized 14-point lung ultrasound sliding scan protocol was performed, with human experts interpreting images based on typical lung ultrasound findings. A single sputum molecular test (MTB Xpert Ultra) served as the reference standard.

ULTR-AI (max) demonstrated 93% sensitivity and 81% specificity (AUROC 0.93, 95% CI 0.92-0.95), exceeding WHO’s target thresholds of 90% sensitivity and 70% specificity for non-sputum-based TB triage tests.

“Our model clearly detects human-recognizable lung ultrasound findings—like large consolidations and interstitial changes—but an end-to-end deep learning approach captures even subtler features beyond the human eye,” said Dr. Suttels.

“Our hope is that this will help identify early pathological signs such as small sub-centimeter pleural lesions common in TB.”

“A key advantage of our AI models is the immediate turnaround time once they are integrated into an app,” added Dr. Suttels.

“This allows lung ultrasound to function as a true point-of-care test with good diagnostic performance at triage, providing instant results while the patient is still with the health care worker. Faster diagnosis could also improve linkage to care, reducing the risk of patients being lost to follow-up.”

More information:
Véronique Suttels et al, Lung Ultrasound for the Detection of Pulmonary Tuberculosis Using Expert- and AI-Guided Interpretation: A Prospective Cohort Study, SSRN (2025). DOI: 10.2139/ssrn.5174193

Provided by
European Society of Clinical Microbiology and Infectious Diseases

Citation:
AI-guided lung ultrasound marks an advance in tuberculosis diagnosis (2025, April 13)
retrieved 13 April 2025
from https://medicalxpress.com/news/2025-04-ai-lung-ultrasound-advance-tuberculosis.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.


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