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What does chest xray show if smoker. Smoker’s Lung vs Normal Lung on X-ray: Key Differences Revealed

How does a smoker’s lung appear on an X-ray compared to a healthy lung. What are the characteristic features of a smoker’s lung visible on chest radiographs. Can X-rays detect early signs of smoking-related lung damage.

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The Harmful Effects of Cigarette Smoke on Lung Health

Cigarette smoke contains numerous toxic substances that can severely damage the respiratory system. When inhaled directly into the lungs, these chemicals trigger an overproduction of mucus while simultaneously reducing the body’s ability to expel it efficiently. This leads to significant changes in the bronchial mucosa of long-term smokers.

Some key effects of prolonged smoking on lung health include:

  • Proliferation of mucous glands
  • Thickening of airway linings
  • Increased sputum secretion
  • Narrowing of airways
  • Reduced mucus clearance capability

These changes create favorable conditions for respiratory infections and other lung diseases. Common manifestations in smokers include persistent cough, frequent bronchitis, and increased susceptibility to infections like pneumonia.

Comparing Smoker’s Lungs to Healthy Lungs: Visual Differences

The lungs of long-term smokers often develop a distinctive blackened appearance, in stark contrast to the healthy pink color of non-smoker lungs. This discoloration is a result of tar and other harmful substances accumulating in the lung tissue over time.

Additionally, smokers’ lungs typically demonstrate reduced elasticity and diminished air capacity. The toxic components in cigarette smoke cause lung tissue to harden, impairing its ability to fully expand and contract during respiration. This reduction in lung function can significantly impact overall respiratory health and quality of life.

How does smoking affect lung capacity?

Smoking gradually decreases lung capacity by damaging the alveoli – tiny air sacs responsible for oxygen exchange. As these sacs lose elasticity and become less efficient, the lungs struggle to take in and utilize oxygen effectively. This leads to reduced stamina, shortness of breath, and decreased overall lung function.

Chest X-ray Findings in Smokers: Telltale Signs

Chest X-rays can reveal several characteristic features in the lungs of smokers, although the extent and visibility of these changes may vary based on factors such as smoking duration and intensity. Some common findings include:

  1. A black membrane covering the outer surface of the lungs, which becomes more pronounced with prolonged smoking
  2. Increased lung size compared to normal
  3. Presence of numerous black dots indicating areas of inflammation
  4. Signs of alveolar dilatation, resulting in a “barrel-shaped” chest appearance
  5. Widened intercostal spaces
  6. Bright areas corresponding to regions of alveolar expansion

Can chest X-rays detect early signs of smoking-related lung damage?

While chest X-rays can reveal some signs of smoking-related lung damage, they may not be sensitive enough to detect early-stage changes. More advanced imaging techniques like low-dose CT scans are often recommended for early detection of lung abnormalities in smokers, especially for lung cancer screening.

Chronic Obstructive Pulmonary Disease (COPD) and Smoking

Chronic Obstructive Pulmonary Disease (COPD) is a progressive lung condition strongly associated with smoking. Chest X-rays can provide valuable information for suspecting COPD and identifying potential causes of exacerbations, such as:

  • Pneumonia
  • Pneumothorax (collapsed lung)
  • Signs of pulmonary embolism

It’s important to note that while X-rays can suggest the presence of COPD, additional tests like pulmonary function tests are typically required for a definitive diagnosis.

How does COPD affect lung function over time?

COPD progressively damages the airways and lung tissue, leading to persistent breathing difficulties. As the disease advances, patients may experience decreased lung capacity, chronic cough, increased mucus production, and frequent respiratory infections. These symptoms tend to worsen over time, significantly impacting quality of life and potentially leading to respiratory failure in severe cases.

The Link Between Smoking and Lung Cancer

Smoking is the leading cause of lung cancer, accounting for an estimated 80-90% of lung cancer cases worldwide. In Vietnam, lung cancer ranks as the most common cancer among both men and women, with smoking being a primary risk factor.

The carcinogens present in tobacco smoke can cause genetic mutations in lung cells, leading to uncontrolled cell growth and tumor formation. Long-term exposure to these harmful substances significantly increases the risk of developing lung cancer.

Does quitting smoking reduce lung cancer risk?

Yes, quitting smoking can substantially reduce the risk of developing lung cancer. While it may not eliminate the risk entirely, especially for long-term smokers, the benefits of quitting are significant and begin almost immediately. Within 10 years of quitting, the risk of lung cancer drops to about half that of a current smoker.

Second-hand Smoke: A Hidden Danger

The harmful effects of tobacco smoke extend beyond active smokers to those exposed to second-hand smoke. Non-smokers who regularly inhale second-hand smoke face increased risks of various respiratory conditions, including:

  • Bronchitis
  • Pneumonia
  • Tuberculosis
  • Asthma exacerbations

Children are particularly vulnerable to the effects of second-hand smoke. Exposure can lead to:

  • Increased frequency of respiratory symptoms (coughing, wheezing, shortness of breath)
  • Slowed lung growth and development
  • Premature decline in lung function
  • Higher risk of developing asthma

How long does second-hand smoke linger in the air?

Second-hand smoke can linger in the air for up to 5 hours after a cigarette has been extinguished. Even after the visible smoke has dissipated, harmful particles remain suspended in the air and can settle on surfaces, posing ongoing health risks to those in the vicinity.

Lung Cancer Screening: A Crucial Step for Smokers

Given the high prevalence of lung cancer among smokers, regular screening is crucial for early detection and improved treatment outcomes. Many healthcare facilities, including Vinmec International General Hospital, offer comprehensive lung cancer screening packages designed to detect the disease in its early stages.

These screening programs typically involve:

  • Low-dose CT scans
  • Pulmonary function tests
  • Blood tests for cancer markers
  • Consultation with pulmonology specialists

Who should undergo lung cancer screening?

Lung cancer screening is generally recommended for individuals who:

  • Are between 50-80 years old
  • Have a 20 pack-year smoking history (equivalent to smoking a pack a day for 20 years)
  • Currently smoke or have quit within the past 15 years

However, specific guidelines may vary based on individual risk factors and medical history. It’s best to consult with a healthcare provider to determine if lung cancer screening is appropriate.

Advanced Diagnostic Techniques for Lung Health Assessment

Modern healthcare facilities employ a range of advanced diagnostic techniques to assess lung health and detect smoking-related damage. Some of these include:

  1. Computed Tomography (CT) Scans: Provide detailed cross-sectional images of the lungs, allowing for detection of small nodules or early-stage cancers that may not be visible on standard X-rays.
  2. Magnetic Resonance Imaging (MRI): Offers high-resolution images of soft tissues, useful for evaluating certain lung conditions and assessing the extent of lung damage.
  3. Positron Emission Tomography (PET) Scans: Can help identify areas of active cancer growth and determine if lung cancer has spread to other parts of the body.
  4. Bronchoscopy: Allows direct visualization of the airways using a thin, flexible tube with a camera, enabling doctors to examine the lungs and collect tissue samples if necessary.
  5. Endobronchial Ultrasound (EBUS): Combines bronchoscopy with ultrasound technology to provide detailed images of structures adjacent to the airways, aiding in the diagnosis and staging of lung cancer.

How accurate are these advanced diagnostic techniques in detecting lung abnormalities?

Advanced diagnostic techniques like CT scans and PET scans offer significantly higher accuracy in detecting lung abnormalities compared to traditional X-rays. Low-dose CT scans, for instance, can detect lung nodules as small as a few millimeters in size, greatly improving the chances of early lung cancer detection. The combination of multiple imaging modalities and diagnostic procedures further enhances the overall accuracy of lung health assessments.

Smoking Cessation: A Critical Step Towards Lung Health Recovery

Quitting smoking is the single most effective action smokers can take to improve their lung health and overall well-being. While some damage from long-term smoking may be irreversible, the body has a remarkable capacity for healing once exposure to tobacco smoke ceases.

Benefits of quitting smoking include:

  • Improved lung function and capacity
  • Reduced risk of respiratory infections
  • Decreased inflammation in the airways
  • Lowered risk of developing lung cancer and other smoking-related diseases
  • Enhanced overall cardiovascular health

How quickly do lungs start to heal after quitting smoking?

The healing process begins almost immediately after quitting smoking:

  • Within 12 hours: Carbon monoxide levels in the blood drop to normal
  • Within 2 weeks to 3 months: Lung function begins to improve, and circulation enhances
  • 1 to 9 months: Coughing and shortness of breath decrease as the lungs heal and regain normal function
  • 1 year: The risk of coronary heart disease is about half that of a smoker
  • 5 to 15 years: Stroke risk is reduced to that of a non-smoker
  • 10 years: The risk of dying from lung cancer falls to about half that of a continuing smoker

It’s important to note that while significant healing occurs, some damage from long-term smoking may persist. However, the benefits of quitting far outweigh any residual effects, making it a crucial step towards improved health and longevity.

The difference between a smoker’s lung and a normal person’s lung on X-ray

This is an automatically translated article.

The article is professionally consulted by MSc, BS. Dang Manh Cuong – Radiologist – Radiology Department – Vinmec Central Park International General Hospital. The doctor has over 18 years of experience in the field of ultrasound – diagnostic imaging.

Smoking is a bad habit that is hard to quit not only in men but also in women. Cigarette smoke has a significant impact on health, especially the lungs. Can cause lung diseases such as chronic obstructive pulmonary disease, pneumonia, especially lung cancer.

1. Harm of cigarette smoke

Tobacco smoke contains many harmful substances that can damage the respiratory system.
These toxic substances are chemicals that, when inhaled directly into the lungs, will lead to an overproduction of mucus in the lungs along with a lower ability to excrete mucus out of the body than the average person. Therefore, the bronchial mucosa of smokers for many years has changed in structure, proliferating mucous glands, thickening the lining of the airways, increasing sputum secretion, causing narrowing of the airways. In addition, the lungs are not able to clear excess mucus effectively, which will be favorable conditions for respiratory infections. Manifested by cough, bronchitis and infections such as pneumonia, obstructive pulmonary disease, lung cancer,… The lungs of a long-time smoker can turn black, while in a healthy person ruddy. At the same time, the part that can’t pump as full of air as a non-smoker because the smoke makes the lungs hard, reduces elasticity, and affects lung function. In addition, the harmful effects of tobacco also cause:
90% of cases diagnosed with lung cancer are tobacco users. Tobacco is also the cause of 75% of cases of chronic obstructive pulmonary disease. increase the risk of dying from the disease 66 times compared to non-smokers. Secondhand smoke increases the risk of bronchitis, pneumonia, tuberculosis, and asthma in adults. In children, secondhand smoke increases the risk of respiratory symptoms such as coughing, wheezing, shortness of breath, slows lung growth, and causes premature decline in lung function. Tobacco not only affects direct smokers, but passive smokers are just as vulnerable as direct users.

Khói thuốc lá có chứa rất nhiều chất độc hại có thể làm tổn thương hệ hô hấp

2. The difference between a smoker’s lung and a normal person’s lung on X-ray

Normally, the lungs of normal healthy people will be ruddy, with no abnormal signs.
For smokers, images of the lungs on characteristic x-ray films. However, each person is not the same, because smoking time is different smoking dose, so the impact of tobacco on the lungs is different. But basically the symptoms are the same, just different in degree.
The chest x-ray image of a smoker shows:
The outside of the lung is covered with a black membrane. The longer a smoker has smoked, the more obvious this black film becomes. Lungs may increase in size than normal, many black dots are inflammatory sites… Alveolar dilatation can be seen on X-ray, showing barrel-shaped lungs, dilated intercostal spaces, and regions. Brightening corresponds to areas of alveolar dilatation. Chest X-ray can suspect chronic obstructive pulmonary disease to help detect the causes of exacerbations: Pneumonia, pneumothorax, signs of pulmonary embolism… In Vietnam, lung cancer is The disease ranks first among the 10 most common cancers in both men and women. The leading cause of lung cancer is the habit of smoking. In order to reverse lung cancer and other dangerous cancers caused by tobacco in the community, Vinmec International General Hospital offers a Lung Cancer Screening Package to help detect lung cancer early, reduce mortality. death from lung cancer.

Nguyên nhân hàng đầu gây ung thư phổi là thói quen hút thuốc lá

The hospital is home to a team of experienced experts, combined with the world’s leading modern equipment system, autologous immune-boosting therapy, biopsies, and diagnostic techniques. Imaging diagnostics such as computed tomography (CT-Scanner), magnetic resonance imaging (MRI),… help diagnose and treat diseases more accurately.

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The “dirty chest”—correlations between chest radiography, multislice CT and tobacco burden

1. Hartman TE, Tazelaar HD, Swensen SJ, Müller NL.
Cigarette smoking: CT and pathologic findings of associated pulmonary diseases.
Radiographics
1997;17:377–90 [PubMed] [Google Scholar]

2. American Thoracic Society, European Respiratory Society
American Thoracic Society/European Respiratory Society International Multidisciplinary Consensus Classification of the Idiopathic Interstitial Pneumonias.
Am J Respir Crit Care Med
2002;165:277–304 [PubMed] [Google Scholar]

3. Heyneman LE, Ward S, Lynch DA, Remy-Jardin M, Johkoh T, Müller NL.
Respiratory bronchiolitis, respiratory bronchiolitis-associated interstitial lung disease, and desquamative interstitial pneumonia: different entities or part of the spectrum of the same disease process?
AJR Am J Roentgenol
1999;173:1617–22 [PubMed] [Google Scholar]

4. Kanne JP, Bilawich AM, Lee CH, Im JG, Müller NL.
Smoking-related emphysema and interstitial lung diseases.
J Thorac Imaging
2007;22:286–91 [PubMed] [Google Scholar]

5. Ryu JH, Colby TV, Hartman TE, Vassallo R.
Smoking-related interstitial lung diseases: a concise review.
Eur Respir J
2001;17:122–32 [PubMed] [Google Scholar]

6. Wells AU, Nicholson AG, Hansell DM.
Challenges in pulmonary fibrosis. 4: smoking-induced diffuse interstitial lung diseases.
Thorax
2007;62:904–10 [PMC free article] [PubMed] [Google Scholar]

7. Bates DV.
Chronic bronchitis and emphysema.
N Engl J Med
1968;278:546–51 [PubMed] [Google Scholar]

8. Fraser RG, Fraser RS, Renner JW, Bernard C, Fitzgerald PJ.
The roentgenologic diagnosis of chronic bronchitis: a reassessment with emphasis on parahilar bronchi seen end-on.
Radiology
1976;120:1–9 [PubMed] [Google Scholar]

9. Gückel C, Hansell DM.
Imaging the ‘dirty lung’—has high resolution computed tomography cleared the smoke?
Clin Radiol
1998;53:717–22 [PubMed] [Google Scholar]

10. Reid L, Simon G., III
Pathological findings and radiological changes in chronic bronchitis and emphysema.
Br J Radiol
1959;32:291–305 [PubMed] [Google Scholar]

11. Remy-Jardin M, Remy J, Gosselin B, Becette V, Edme JL.
Lung parenchymal changes secondary to cigarette smoking: pathologic-CT correlations.
Radiology
1993;186:643–51 [PubMed] [Google Scholar]

12. International Labour Office
Guidelines for the use of ILO international classification of radiographs of pneumonconioses. Geneva: ILO; 2000 [Google Scholar]

13. Awadh N, Müller NL, Park CS, Abboud RT, FitzGerald JM.
Airway wall thickness in patients with near fatal asthma and control groups: assessment with high resolution computed tomographic scanning.
Thorax
1998;53:248–53 [PMC free article] [PubMed] [Google Scholar]

14. Webb WR.
Plain film and high resolution computed tomographic assessment of diffuse infiltrative lung disease.
Webb WR, Higgins CB, Thoracic imaging: pulmonary and cardiovascular radiology. Philadelphia, PA: Lippincott, Williams and Wilkins; 2005. pp 306–30 [Google Scholar]

15. Faul F, Erdfelder E, Buchner A, Lang AG.
Statistical power analyses using G*Power 3. 1: Tests for correlation and regression analyses.
Behavior Research Methods
2009;41:1149–60 [PubMed] [Google Scholar]

16. Webb WR.
Radiology of obstructive pulmonary disease.
AJR Am J Roentgenol
1997;169:637–47 [PubMed] [Google Scholar]

17. Nakano Y, Muro S, Sakai H, Hirai T, Chin K, Tsukino M, et al.
Computed tomographic measurements of airway dimensions and emphysema in smokers. Correlation with lung function.
Am J Respir Crit Care Med
2000;162:1102–8 [PubMed] [Google Scholar]

18. Coxson HO.
Quantitative computed tomography assessment of airway wall dimensions: current status and potential applications for phenotyping chronic obstructive pulmonary disease.
Proc Am Thorac Soc
2008;15:940–5 [PMC free article] [PubMed] [Google Scholar]

19. DiMango EA, Lubetsky H, Austin JH.
Assessment of bronchial wall thickening on posteroanterior chest radiographs in acute asthma.
J Asthma
2002;39:255–61 [PubMed] [Google Scholar]

20. Matsuoka S, Yamashiro T, Washko GR, Kurihara Y, Nakajima Y, Hatabu H.
Quantitative CT assessment of chronic obstructive pulmonary disease.
Radiographics
2010;30:55–66 [PubMed] [Google Scholar]

21. Orlandi I, Moroni C, Camiciottoli G, Bartolucci M, Pistolesi M, Villari N, et al.
Chronic obstructive pulmonary disease: thin-section CT measurement of airway wall thickness and lung attenuation.
Radiology
2005;234:604–10 [PubMed] [Google Scholar]

22. Moon J, du Bois RM, Colby TV, Hansell DM, Nicholson AG.
Clinical significance of respiratory bronchiolitis on open lung biopsy and its relationship to smoking related interstitial lung disease.
Thorax
1999;54:1009–14 [PMC free article] [PubMed] [Google Scholar]

23. Yousem SA, Colby TV, Gaensler EA.
Respiratory bronchiolitis-associated interstitial lung disease and its relationship to desquamative interstitial pneumonia.
Mayo Clin Proc
1989;64:1373–80 [PubMed] [Google Scholar]

24. Remy-Jardin M, Remy J, Boulenguez C, Sobaszek A, Edme JL, Furon D.
Morphologic effects of cigarette smoking on airways and pulmonary parenchyma in healthy adult volunteers: CT evaluation and correlation with pulmonary function tests.
Radiology
1993;186:107–15 [PubMed] [Google Scholar]

25. Remy-Jardin M, Edme JL, Boulenguez C, Remy J, Mastora I, Sobaszek A.
Longitudinal follow-up study of smoker’s lung with thin-section CT in correlation with pulmonary function tests.
Radiology
2002;222:261–70 [PubMed] [Google Scholar]

26. Holt RM, Schmidt RA, Godwin JD, Raghu G.
High resolution CT in respiratory bronchiolitis-associated interstitial lung disease.
J Comput Assist Tomogr
1993;17:46–50 [PubMed] [Google Scholar]

27. Park JS, Brown KK, Tuder RM, Hale VA, King TE, Jr, Lynch DA.
Respiratory bronchiolitis-associated interstitial lung disease: radiologic features with clinical and pathologic correlation.
J Comput Assist Tomogr
2002;26:13–20 [PubMed] [Google Scholar]

28. Müller-Leisse C, Otto A, Berger F, Schmitz E, Günther RW.
The recording of parenchymal lung changes in smokers by high-resolution computed tomography.
Röfo
1997;166:108–14 [PubMed] [Google Scholar]

29. Gruden JF, Webb WR.
CT findings in a proved case of respiratory bronchiolitis.
AJR Am J Roentgenol
1993;161:44–6 [PubMed] [Google Scholar]

30. Sashidhar K, Gulati M, Gupta D, Monga S, Suri S.
Emphysema in heavy smokers with normal chest radiography. Detection and quantification by HCRT.
Acta Radiol
2002;43:60–5 [PubMed] [Google Scholar]

31. Spaggiari E, Zompatori M, Verduri A, Chetta A, Bnà C, Ormitti F, et al.
Early smoking-induced lung lesions in asymptomatic subjects. Correlations between high resolution dynamic CT and pulmonary function testing.
Radiol Med
2005;109:27–39 [PubMed] [Google Scholar]

32. Miniati M, Monti S, Stolk J, Mirarchi G, Falaschi F, Rabinovich R, et al.
Value of chest radiography in phenotyping chronic obstructive pulmonary disease.
Eur Respir J
2008;31:509–15 [PubMed] [Google Scholar]

33. Miniati M, Filippi E, Falaschi F, Carrozzi L, Milne EN, Sostman HD, et al.
Radiologic evaluation of emphysema in patients with chronic obstructive pulmonary disease. Chest radiography versus high resolution computed tomography.
Am J Respir Crit Care Med
1995;151:1359–67 [PubMed] [Google Scholar]

90,000 CT or X-ray of the lungs: which is better?

For pneumonia, tuberculosis, and even as part of preventive screening, patients are prescribed a CT scan or x-ray of the lungs.

What is the difference between these examination methods? When is the best time to do a CT scan of the lungs, and when is it better to do an x-ray? Let’s take a closer look in this article.

How is a CT scan different from a lung x-ray?

Computed tomography is a modern method of radiation diagnostics of various diseases, which is based on radiography. . The method was developed and proposed by scientists, Nobel Prize winners G. Hounsfield and A. Cormak in 1972 year. Classical radiography was invented in 1896, most often it was used in dentistry and for examining the lungs, since at the turn of the 19th-20th centuries. mortality from pneumonia, tuberculosis and asthma was extremely high.

The key difference between digital x-rays and computed tomography of the lungs is the x-ray trajectory and imaging technique. In conventional x-rays, X-rays pass perpendicular to the area of ​​interest only once, so the x-ray is a two-dimensional, single-layer image. X-ray of the lungs is the most affordable study, which is often prescribed in the first place, if the patient has signs of pneumonia, tuberculosis, obstructive pulmonary disease, tumors. The problem of this type of diagnosis lies in the fact that, for example, with pneumonia on an x-ray, only lung damage of III and IV degrees can be reliably determined, and shadows from large organs can obscure other tissues.

CT scans are more clear and informative. During computed tomography, the x-ray tube, together with sensitive sensors, makes several revolutions along a spiral path, scanning the area under study. The CT machine makes many scans up to 1 mm thick, on the basis of which a high-resolution three-dimensional model of the lungs, vessels, organs and bones of the chest is recreated. Thus, after computer processing of images, tissues and organs can be examined in three projections, the effect of overlaying shadows from organs in the case of computed tomography is absent.

The high definition of the image in computed tomography is associated with the diagnostic technique and the physical properties of the radiation. X-ray has a 20% attenuation coefficient, while tomography has a coefficient of 0.5%, and therefore a higher resolution.

Both X-rays and CT scans can be done with contrast. X-ray or CT of the lungs with contrast will help visualize vessels and tumors. However, the primary differentiation of neoplasms into benign and oncogenic is possible only within the framework of CT, which is also associated with image quality.

Since a chest x-ray is essentially 1 image, and many CT scans are taken, the radiation on lung CT is higher due to multiple exposures. On average, a patient receives 0.1 mSv of radiation during one X-ray procedure of the lungs, and 2.5 mSv during a CT scan of the lungs. However, this dose of ionizing radiation is safe for the patient. It is permissible to do CT scans of 5 zones per year. Referring to one or another radiographic method of examination, doctors are always guided by the criterion of expediency and patient safety.

In the specialized CT center “Ami”, the procedure is performed on a new generation device Siemens Somatom go. Now with reduced radiation exposure.

Which is better: CT or X-ray of the lungs?

CT scan of the lungs and radiography are prescribed for pneumonia, tuberculosis, bronchial asthma. Both studies show the condition of the lungs, bronchi, trachea, and mediastinum. Both CT and X-ray reveal tumors, foreign objects in the lung cavity and airways. Like computed tomography, x-rays show fluid accumulation in the alveoli or fibrosis (lung damage due to pneumonia), the presence of emphysema (chronic smoker’s bronchitis), pulmonary edema and sarcoidosis (granulomas and nodular neoplasms of the lungs).

However, most doctors are inclined to believe that if it is possible to do a CT scan of the lungs instead of an X-ray, then it is better to examine the chest organs in this way. Firstly, the doctor will definitely not miss the disease or tumor in the initial stage. Secondly, after a CT scan of the lungs, there is no need for an additional clarifying examination (except for laboratory diagnostics, since infectious, viral and bacterial pathogens are determined by analyzing biological material). Thirdly, small calcifications, destructions and tumors are visible only on CT scans.

According to the World Health Organization, lung cancer continues to pose a threat to the life and health of millions of people. Therefore, patients older than 40 years, especially those at risk, are recommended annual preventive screening. Fluorography and X-rays are considered the traditional method of prevention, but low-dose computed tomography of the lungs is best suited for this purpose.

Advantages of lung X-ray

  • Low cost of examination.
  • Irradiation approx. 0.1 mSv.
  • Many medical institutions are equipped with X-ray machines.

Cons of lung X-ray

  • Low information content.
  • Low specificity.
  • 2D images, suspicious areas may be obscured by organ shadows.
  • Does not show pneumonia, tumors and other lung pathologies in the early stages. Also, CT is more informative for examining the lymph nodes.
  • It is impossible to give a primary assessment of neoplasms, to differentiate them into benign and oncogenic.
  • There is a possibility of getting an incomplete picture.

Advantages of lung CT

  • Three-dimensional (spatial) image of the lungs, comprehensive information content.
  • Shows diseases and pathologies of the lungs in the early stages.
  • Early detection of lung cancer.
  • The physician can initially differentiate neoplasms.
  • It is prescribed for atypical course of diseases, as a clarifying method of examination after X-ray.

Lung CT cons

  • Higher price.
  • Higher dose of ionizing radiation.
  • Relatively low prevalence of medical centers equipped with tomographs.

What is more informative: CT of the lungs or X-ray?

Computed tomography is the most modern and informative X-ray examination method. On scans in three projections, soft tissues, internal organs, bones and blood vessels are visualized. 2D x-rays give a more general picture of the lung condition, but sometimes it is enough for the subsequent successful treatment of the patient.

Is it dangerous to do a CT scan of the lungs after an x-ray?

Ionizing (X-ray) radiation is not useful for humans, but in excess causes radiation syndrome and can become a “trigger” for the development of cancer in patients predisposed to them. According to the current “Radiation Safety Standards”, up to 30-50 mV of radiation is permissible per year, but one should not forget about the natural radiation background. CT of the lungs (about 2.5 mSv) after X-ray (about 0.1 mSv) is safe, and such a precise diagnosis can save the patient’s life.

However, in order to avoid additional radiation exposure, it is most advisable to immediately perform a CT scan of the lungs, without resorting to x-rays.

What is better to do with pneumonia: CT or X-ray?

Only a doctor can prescribe a CT or X-ray of the lungs for pneumonia after examining the symptoms, laboratory tests, and the individual clinical picture of the patient. The presence of fluid or pus in the alveoli, as well as fibrosis, is visualized on both radiographs and CT scans. However, conventional x-rays may not be sufficient for grade I-II pneumonia, while on CT it is seen more clearly as ground glass. For SARS and coronavirus, it is recommended to do a CT scan of the lungs.

Is it possible to do a CT scan of the lungs instead of an x-ray?

Yes, lung CT can replace x-rays. However, the doctor who prescribes this or that study always takes into account the individual characteristics of the patient, for example, how many X-ray studies have already been carried out during the year, whether there are any contraindications to CT. Also, ionizing radiation is harmful to pregnant women and the fetus, so in this case, pneumonia is preferable to MRI of the lungs.

Text prepared by

Maksim Anatolievich Kotov, Chief Physician of the Ami CT Center, Candidate of Medical Sciences, Associate Professor. Experience 21 years

  1. The American Cancer Society medical and editorial content team. Key Statistics for Lung Cancer, 2020.
  2. Eva-Christina Schliewert, Kara M Lascola, Robert T O’Brien, Stuart C Clark-Price, Pamela A Wilkins, Jonathan H Foreman, Mark A Mitchell, Susan K Hartman, Kevin H Kline. Comparison of radiographic and computed tomographic images of the lungs in healthy neonatal foals, 2015.
  3. Eva-Christina Schliewert, Kara M Lascola, Robert T O’Brien, Stuart C Clark-Price, Pamela A Wilkins, Jonathan H Foreman, Mark A Mitchell, Susan K Hartman, Kevin H Kline. Comparison of radiographic and computed tomographic images of the lungs in healthy neonatal foals, 2015.
  4. Sokolov V.A., V.M. Kartashov, A.I. Piven’, S.Iu. Krasnoborova, L.V. Blinova, A.V. Savel’ev. X-ray longitudinal and computed tomography in the diagnosis of peripheral tumor-like formations of the lungs, 1997.
  5. Strutynsky A.V., Yudin A.L., Semenov D.V., Afanas’eva N.I., Semenov V.A. Experience in the use of high-resolution computed tomography of the lungs in the diagnosis and evaluation of the results of treatment of community-acquired pneumonia, 2011.
  6. Kotov M.A. Experience in the use of computed tomography in the diagnosis of respiratory diseases in children / Proceedings of the X Nevsky Radiological Forum (NRF-2018). – St. Petersburg, 2018, Radiation diagnostics and therapy. 2018. No. 1 (9). — S. 149.
  7. Ministry of Health of the Russian Federation. Temporary guidelines. Prevention, diagnosis and treatment of novel coronavirus infection COVID-19, version 8, 2020.
  8. British Royal College of Radiology, Federal State Budgetary Healthcare Institution “Clinical Hospital No. 122 named after. L. G. Sokolova FMBA of Russia. Information for patients who are scheduled to undergo computed tomography.
  9. World Health Organization / Fact Sheets: Cancer, 2018.

What to do if the chest hurts after smoking, how to remove this pain?

Smoking is a habit that doctors constantly talk about the dangers of. Sometimes the resulting diseases do not manifest themselves immediately, but only many years after a person has started smoking, sometimes problems arise almost instantly, often right in the process of smoking or immediately after it. So, many smokers have a question: can smoking hurt in the chest and what could it be connected with? With such symptoms, a doctor is often treated, and it can appear for a variety of reasons. Chest pain may be related to pre-existing health problems that have been exacerbated by a bad habit, or may appear after you start smoking.

Chest pain after smoking: causes

To identify the exact cause, you need to see a doctor. Only the medical history collected by the doctor and the examinations passed will make it possible to make a diagnosis and begin the treatment process. If your chest hurts after smoking, then this is a very alarming sign that should not be ignored. What causes pain syndrome? These can be pulmonary (eg, bronchitis) or extrapulmonary (eg, heart or gastrointestinal disease) factors.

Thoracic sciatica

With thoracic sciatica, pain comes in attacks, the pain is acute and quite strong. The main source of pain is the spine, but it radiates to the sides or anterior chest.

Intercostal neuralgia

The cause of this pathology is herpes, and the disease is accompanied by various symptoms. If after smoking your chest not only hurts, but also a burning sensation appears, and the pain only intensifies from any touch, it is likely that this is intercostal neuralgia.

Inflammatory processes in the bronchi and lungs

Inflammation in the bronchi and lungs are signs of diseases such as bronchitis or bronchial asthma, tuberculosis, pneumonia, etc. Such pain is usually acute and appears periodically (that is, attacks) on the right or left. In addition, inflammation may be indicated by the presence of a severe cough and shortness of breath.

Breast cancer

Chest pain after smoking, accompanied by coughing and shortness of breath, is likely to be an oncological symptom that indicates the appearance of tumors in the chest (in men and women). As a rule, in the initial stages of the disease, a person does not experience any discomfort, so he does not think about going to the doctor. Lung cancer can be diagnosed during a chest x-ray or during treatment for pneumonia.

Diseases of the spine

As a rule, smokers have pain both in the chest and in the back (during or after) due to the curvature of the spine and the violation of its normal position. In this case, pain occurs in different areas (neck, lower back, etc.) when a person takes a particular position.

Gastrointestinal diseases

If you have such a bad habit as smoking, chest pain may indicate (including after giving up cigarettes) gastritis or stomach ulcers. With gastritis, aching discomfort often appears after eating, and with an ulcer, the pain is acute and is accompanied by severe spasms.

Heart disease

Pain syndrome can appear both with previously diagnosed cardiac ischemia and angina pectoris, and serve as an initial sign of these pathologies. If chest pain is associated with the heart, then it can be constant and intensify with excitement and the slightest physical exertion, or it can occur periodically. With angina pectoris, there may be a feeling of pressure and burning in the chest, as well as shortness of breath and arrhythmia.

Chest pain after quitting smoking

When a person quits smoking, certain changes begin to occur in his body, through which the former smoker must go through. As a rule, getting used to a new way of life is accompanied by a number of unpleasant, and sometimes very uncomfortable sensations. All this is connected with the process of detoxification. After quitting smoking, the chest hurts because the lungs and bronchi begin to be cleared of accumulated tar and nicotine, as well as due to exacerbated gastrointestinal diseases or due to heart failure, which appeared due to oxygen starvation.

How to relieve pain?

Much depends on the cause of the pain, which can only be established by a doctor. Accordingly, if painful discomfort occurs, you should immediately contact a neurologist , because the problem can be serious (for example, a stomach ulcer or breast cancer). What to do before consulting a specialist? Eliminate the source of pain – stop smoking. If you have already quit, but the pain remains, you need, again, to see a doctor to find out why this is happening, whether the discomfort is associated with detoxification of the body or with any disease. It is not recommended to take painkillers as they will provide temporary relief, and without a doctor’s prescription, they can cause even more harm and prevent an accurate diagnosis.

Diagnosis

If you do not know which doctor to contact, then first you can visit the therapist , who will give the first recommendations and referrals to other specialists. Patients with such problems are often recommended to undergo a complete examination of all body systems, that is, to make a diagnosis of the cardiovascular system, as well as the gastrointestinal tract and respiratory organs. Which complex of tests and examinations the doctor will prescribe depends on the causes and symptoms.