Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN (2024)

Abstract

Chronic obstructive pulmonary disease (COPD) is associated with morphologic abnormalities of airways with various patterns and severities. However, the way of effectively representing these abnormalities is lacking and whether these abnormalities enable to distinguish COPD from healthy controls is unknown. We propose to use deep convolutional neural network (CNN) to assess 3D lung airway tree from the perspective of computer vision, thereby constructing models of identifying COPD. After extracting airway trees from CT images, snapshots of their 3D visualizations are obtained from ventral, dorsal and isometric views. Using snapshots of each view, one deep CNN model is constructed and further optimized by Bayesian optimization algorithm to indentify COPD. The majority voting of three views presents the final prediction. Finally, the class-discriminative localization maps have been drawn to visually explain the CNNs' decisions. The models trained with single view (ventral, dorsal and isometric) of colorful snapshots present the similar accuracy (ACC) (86.8%, 87.5% and 86.7%) and the model after voting achieves the ACC of 88.2%. The ACC of the final voting model using gray and binary snapshots achieves 88.6% and 86.4%, respectively. Our specially designed CNNs outperform the typical off-the-shelf CNNs and the pre-trained CNNs with fine tuning. The class-discriminative regions of COPD are mainly located at central airways; however, regions in HC are scattering and located at peripheral airways. It is feasible to identify COPD using snapshots of 3D lung airway tree extracted from CT images via deep CNN. The CNNs can represent the abnormalities of airway tree in COPD and make accurate CT-based diagnosis of COPD.

Original languageEnglish
Article number9000819
Pages (from-to)38907-38919
Number of pages13
JournalIEEE Access
Volume8
DOIs
StatePublished - 2020

Keywords

  • Airway
  • Chronic obstructive pulmonary disease (COPD)
  • Computed tomography (CT)
  • Convolutional neural networks
  • Deep learning
  • Image classification

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Du, R., Qi, S., Feng, J., Xia, S., Kang, Y., Qian, W. (2020). Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN. IEEE Access, 8, 38907-38919. Article 9000819. https://doi.org/10.1109/ACCESS.2020.2974617

Du, Ran ; Qi, Shouliang ; Feng, Jie et al. / Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN. In: IEEE Access. 2020 ; Vol. 8. pp. 38907-38919.

@article{36f007ce34fe4d65be0ad4a7ac84024d,

title = "Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN",

abstract = "Chronic obstructive pulmonary disease (COPD) is associated with morphologic abnormalities of airways with various patterns and severities. However, the way of effectively representing these abnormalities is lacking and whether these abnormalities enable to distinguish COPD from healthy controls is unknown. We propose to use deep convolutional neural network (CNN) to assess 3D lung airway tree from the perspective of computer vision, thereby constructing models of identifying COPD. After extracting airway trees from CT images, snapshots of their 3D visualizations are obtained from ventral, dorsal and isometric views. Using snapshots of each view, one deep CNN model is constructed and further optimized by Bayesian optimization algorithm to indentify COPD. The majority voting of three views presents the final prediction. Finally, the class-discriminative localization maps have been drawn to visually explain the CNNs' decisions. The models trained with single view (ventral, dorsal and isometric) of colorful snapshots present the similar accuracy (ACC) (86.8%, 87.5% and 86.7%) and the model after voting achieves the ACC of 88.2%. The ACC of the final voting model using gray and binary snapshots achieves 88.6% and 86.4%, respectively. Our specially designed CNNs outperform the typical off-the-shelf CNNs and the pre-trained CNNs with fine tuning. The class-discriminative regions of COPD are mainly located at central airways; however, regions in HC are scattering and located at peripheral airways. It is feasible to identify COPD using snapshots of 3D lung airway tree extracted from CT images via deep CNN. The CNNs can represent the abnormalities of airway tree in COPD and make accurate CT-based diagnosis of COPD.",

keywords = "Airway, Chronic obstructive pulmonary disease (COPD), Computed tomography (CT), Convolutional neural networks, Deep learning, Image classification",

author = "Ran Du and Shouliang Qi and Jie Feng and Shuyue Xia and Yan Kang and Wei Qian and Yao, {Yu Dong}",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2020",

doi = "10.1109/ACCESS.2020.2974617",

language = "English",

volume = "8",

pages = "38907--38919",

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Du, R, Qi, S, Feng, J, Xia, S, Kang, Y, Qian, W 2020, 'Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN', IEEE Access, vol. 8, 9000819, pp. 38907-38919. https://doi.org/10.1109/ACCESS.2020.2974617

Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN. / Du, Ran; Qi, Shouliang; Feng, Jie et al.
In: IEEE Access, Vol. 8, 9000819, 2020, p. 38907-38919.

Research output: Contribution to journalArticlepeer-review

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T1 - Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN

AU - Du, Ran

AU - Qi, Shouliang

AU - Feng, Jie

AU - Xia, Shuyue

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AU - Qian, Wei

AU - Yao, Yu Dong

N1 - Publisher Copyright:© 2013 IEEE.

PY - 2020

Y1 - 2020

N2 - Chronic obstructive pulmonary disease (COPD) is associated with morphologic abnormalities of airways with various patterns and severities. However, the way of effectively representing these abnormalities is lacking and whether these abnormalities enable to distinguish COPD from healthy controls is unknown. We propose to use deep convolutional neural network (CNN) to assess 3D lung airway tree from the perspective of computer vision, thereby constructing models of identifying COPD. After extracting airway trees from CT images, snapshots of their 3D visualizations are obtained from ventral, dorsal and isometric views. Using snapshots of each view, one deep CNN model is constructed and further optimized by Bayesian optimization algorithm to indentify COPD. The majority voting of three views presents the final prediction. Finally, the class-discriminative localization maps have been drawn to visually explain the CNNs' decisions. The models trained with single view (ventral, dorsal and isometric) of colorful snapshots present the similar accuracy (ACC) (86.8%, 87.5% and 86.7%) and the model after voting achieves the ACC of 88.2%. The ACC of the final voting model using gray and binary snapshots achieves 88.6% and 86.4%, respectively. Our specially designed CNNs outperform the typical off-the-shelf CNNs and the pre-trained CNNs with fine tuning. The class-discriminative regions of COPD are mainly located at central airways; however, regions in HC are scattering and located at peripheral airways. It is feasible to identify COPD using snapshots of 3D lung airway tree extracted from CT images via deep CNN. The CNNs can represent the abnormalities of airway tree in COPD and make accurate CT-based diagnosis of COPD.

AB - Chronic obstructive pulmonary disease (COPD) is associated with morphologic abnormalities of airways with various patterns and severities. However, the way of effectively representing these abnormalities is lacking and whether these abnormalities enable to distinguish COPD from healthy controls is unknown. We propose to use deep convolutional neural network (CNN) to assess 3D lung airway tree from the perspective of computer vision, thereby constructing models of identifying COPD. After extracting airway trees from CT images, snapshots of their 3D visualizations are obtained from ventral, dorsal and isometric views. Using snapshots of each view, one deep CNN model is constructed and further optimized by Bayesian optimization algorithm to indentify COPD. The majority voting of three views presents the final prediction. Finally, the class-discriminative localization maps have been drawn to visually explain the CNNs' decisions. The models trained with single view (ventral, dorsal and isometric) of colorful snapshots present the similar accuracy (ACC) (86.8%, 87.5% and 86.7%) and the model after voting achieves the ACC of 88.2%. The ACC of the final voting model using gray and binary snapshots achieves 88.6% and 86.4%, respectively. Our specially designed CNNs outperform the typical off-the-shelf CNNs and the pre-trained CNNs with fine tuning. The class-discriminative regions of COPD are mainly located at central airways; however, regions in HC are scattering and located at peripheral airways. It is feasible to identify COPD using snapshots of 3D lung airway tree extracted from CT images via deep CNN. The CNNs can represent the abnormalities of airway tree in COPD and make accurate CT-based diagnosis of COPD.

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Du R, Qi S, Feng J, Xia S, Kang Y, Qian W et al. Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN. IEEE Access. 2020;8:38907-38919. 9000819. doi: 10.1109/ACCESS.2020.2974617

Identification of COPD from Multi-View Snapshots of 3D Lung Airway Tree via Deep CNN (2024)

FAQs

What is the best imaging for COPD? ›

A chest X-ray cannot diagnose COPD but can exclude other conditions that have similar symptoms. Chest X-rays can also show changes in your lungs associated with COPD. A CT scan may show the type of COPD like emphysema or chronic bronchitis, progression of the disease or severity.

What does COPD look like on a radiograph? ›

One of the signs of COPD that may show up on an X-ray are hyperinflated lungs. This means the lungs appear larger than normal. Also, the diaphragm may look lower and flatter than usual, and the heart may look longer than normal. An X-ray in COPD may not reveal as much if the condition is primarily chronic bronchitis.

How can I test myself for COPD? ›

There's no definitive self-test for COPD. No questionnaire or at-home breathing exercise will inform you, without a doubt, that COPD is causing your symptoms. Verifying the presence of COPD requires specialized breathing equipment, laboratory work, and imaging technology.

What is the most accurate test for COPD? ›

The main test for COPD is spirometry. Spirometry can detect COPD before symptoms are recognized. Your provider may also use the test results to find out how severe your COPD is and help set your treatment goals. Spirometry is a type of lung function test that measures how much air you breathe out.

Does COPD show up on a lung scan? ›

A chest X-ray can show emphysema, one of the main causes of COPD . An X-ray can also rule out other lung problems or heart failure. CT scan. A CT scan of your lungs can help detect emphysema and help determine if you might benefit from surgery for COPD .

What does stage 1 COPD look like? ›

If you score grade 1 on your spirometry test, you may not have any noticeable symptoms. If you do have symptoms, you may develop a cough and increased mucus production. You may mistake the early stages of COPD for the flu.

Can you hear COPD with a stethoscope? ›

“Of course, a stethoscope is helpful at detecting wheezing that is more subtle.” In addition to listening for COPD-specific sounds like wheezing and stridor, your doctor also may measure the intensity of your breath sounds. People with COPD often have a lower-than-normal intensity.

What does COPD phlegm look like? ›

Usually the mucus that people cough up is clear. However, it's often a yellow color in people with COPD. The cough is usually worse early in the morning, and you may cough more when you're physically active or you smoke.

What is often misdiagnosed as COPD? ›

Misdiagnoses of COPD can occur as other conditions, such as asthma, heart failure, or bronchiectasis, due to similarities in symptoms like shortness of breath and coughing. Conversely, these conditions can sometimes be mistaken for COPD.

What is the number one symptom of COPD? ›

An ongoing cough or a cough that produces a lot of mucus, sometimes called a smoker's cough. This is often the first symptom of COPD. Wheezing or a whistling or squeaky sound when you breathe. Chest tightness or heaviness may feel like it is hard to take a deep breath or it's painful to breathe.

What 2 diseases are considered COPD? ›

COPD prevents airflow to the lungs, causing breathing problems. The most common types are emphysema and chronic bronchitis.

What is the 6 minute walk test for COPD? ›

During this test, you walk at your normal pace for six minutes. This test can be used to monitor your response to treatments for heart, lung and other health problems. This test is commonly used for people with pulmonary hypertension, interstitial lung disease, pre-lung transplant evaluation or COPD.

What is the number one thing a person must do if they have COPD? ›

Quitting smoking is the number one most important step, and the American Lung Association has proven-effective resources to help you quit for good. Regular exercise is also incredibly important and may include a formal pulmonary rehabilitation program.

What does the beginning of COPD feel like? ›

Most common early warning symptoms:

shortness of breath. cough that may bring up sputum (also called mucus or phlegm) wheeze or chest tightness. fatigue or tiredness.

What is the new test for COPD? ›

“Our research shows that the N-Tidal device, coupled with our AI technology, can accurately diagnose patients with COPD within minutes (compared to spirometry which takes 30 minutes an appointment), at the point of care, meaning that patients can access treatments quicker.

Is CT or MRI better for lungs? ›

CT scans are really good at showing lung cancer, for instance. But you're going to want an MRI for anything related to the spinal canal. MRIs are also the preferred scan for looking at brain tumors.

What is the best imaging test for lungs? ›

Chest MRI. A chest magnetic resonance imaging (MRI) scan uses radio waves, magnets, and a computer to create pictures of the structures in your chest. It can help your doctor diagnose lung problems such as a tumor or pleural disorder, blood vessel problems, or abnormal lymph nodes.

Does COPD show up on an MRI? ›

MRI can also be used to assess severity of airflow limitation in COPD. For example, the ventilation defect percentage (expressed as a percentage of total lung volume) may be followed over time, and change in VDP correlates quite well with change in FEV1 (Spearman correlation coefficient −0.70, p = 0.03).

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