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  1. Article: Subpleural lung tumors ultrasonography.

    Rednic, Nicolae / Orasan, Olga

    Medical ultrasonography

    2010  Volume 12, Issue 1, Page(s) 81–87

    Abstract: ... sonographic signs of subpleural lung tumors and the differentiation of benign and malignant lesions. ... of peripheral lung tumors, serving as an important aid in decision-making. It helps the investigator to decide ... problem in pulmonary diagnosis. A large number of lung nodules remains undetermined after bronchoscopy ...

    Abstract The assessment of patients with pulmonary focal abnormalities continues to represent an important problem in pulmonary diagnosis. A large number of lung nodules remains undetermined after bronchoscopy, radiological and CT imaging analysis. Ultrasound can contribute to the determination of the nature of peripheral lung tumors, serving as an important aid in decision-making. It helps the investigator to decide the appropriate subsequent step in order to establish the etiologic diagnosis: another imagistic investigation, ultrasonographic guided transthoracic needle biopsy or surgery. This pictorial essay summarizes the main sonographic signs of subpleural lung tumors and the differentiation of benign and malignant lesions.
    MeSH term(s) Biopsy, Needle ; Bronchoscopy ; Diagnosis, Differential ; Humans ; Lung Neoplasms/diagnostic imaging ; Pleural Neoplasms/diagnostic imaging ; Ultrasonography, Interventional
    Language English
    Publishing date 2010-03
    Publishing country Romania
    Document type Journal Article ; Review
    ZDB-ID 2529606-1
    ISSN 1844-4172
    ISSN 1844-4172
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Evaluation of parietal pleural adhesion and invasion in subpleural lung cancer: value of B-mode ultrasound and contrast-enhanced ultrasound.

    Zhang, Yuxin / Zhang, Zhanwei / Liao, Haixing / Li, Maohan / Xu, Cong / Liang, Zechun / He, Liantu / Zhang, Shiyu / Tang, Qing

    Quantitative imaging in medicine and surgery

    2024  Volume 14, Issue 5, Page(s) 3302–3311

    Abstract: ... white rabbits. A rabbit subpleural lung cancer model was constructed by injecting VX2 tumor tissue under ... adhesion/invasion of subpleural lung cancer.: Methods: The study animals included 40 male New Zealand ... interrater reliability in evaluating parietal pleural adhesion/invasion of subpleural lung ...

    Abstract Background: The parietal pleural adhesion/invasion of lung cancer can contribute substantially to poor prognosis and difficulty in surgery. The value of ultrasound in evaluating the parietal pleural adhesion or invasion (pleural adhesion/invasion) of lung cancer remains uncertain. This study investigated the value of B-mode ultrasound and contrast-enhanced ultrasound (CEUS) in diagnosing parietal pleural adhesion/invasion of subpleural lung cancer.
    Methods: The study animals included 40 male New Zealand white rabbits. A rabbit subpleural lung cancer model was constructed by injecting VX2 tumor tissue under ultrasound guidance. In the 1-3 weeks after subpleural lesion formation, parietal pleural adhesion/invasion of the largest subpleural lesion was evaluated with B-mode ultrasound and CEUS by two sonographers. The parietal pleural adhesion/invasion was also determined using the gold standard method of findings from anatomical and pathological examination.
    Results: Ultimately, 34 rabbits were subjected to complete ultrasonic evaluation. There were 20 and 14 cases with and without parietal pleural adhesion/invasion, respectively, as confirmed by anatomical and pathological evaluations. The diagnostic sensitivity, specificity, and accuracy of sonographer 1 using B-mode ultrasound were 50.0% [95% confidence interval (CI): 26.0-74.0%], 100%, and 70.6% (95% CI: 54.5-86.7%), respectively; for CEUS, they were 90.0% (95% CI: 75.6-100.0%), 100.0%, and 94.1% (95% CI: 85.8-100.0%), respectively. The diagnostic sensitivity, specificity, and accuracy of sonographer 2 using B-mode ultrasound were 45.0% (95% CI: 21.1-68.9%), 92.9% (95% CI: 77.5-100.0%), and 64.7% (95% CI: 47.8-81.6%), respectively; for CEUS, they were 85.0% (95% CI: 67.9-100.0%), 100.0%, and 91.2% (95% CI: 81.1-100.0%), respectively. The diagnostic accuracy of sonographer 1 was higher with CEUS than with B-mode ultrasound, but not significantly so (94.1%
    Conclusions: Based on an animal model, B-mode ultrasound and CEUS both exhibited good diagnostic efficacy and interrater reliability in evaluating parietal pleural adhesion/invasion of subpleural lung cancer although CEUS outperformed B-mode ultrasound for both measures.
    Language English
    Publishing date 2024-04-26
    Publishing country China
    Document type Journal Article
    ZDB-ID 2653586-5
    ISSN 2223-4306 ; 2223-4292
    ISSN (online) 2223-4306
    ISSN 2223-4292
    DOI 10.21037/qims-23-1542
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Lung transthoracic ultrasound elastography imaging and guided biopsies of subpleural cancer: a preliminary report.

    Sperandeo, Marco / Trovato, Francesca M / Dimitri, Lucia / Catalano, Daniela / Simeone, Anna / Martines, Giuseppe Fabio / Piscitelli, Angela Pamela / Trovato, Guglielmo M

    Acta radiologica (Stockholm, Sweden : 1987)

    2015  Volume 56, Issue 7, Page(s) 798–805

    Abstract: ... not yet applied in transthoracic ultrasound (TUS) scans to investigate lung nodules.: Purpose ... unnecessary) or if their lung lesions could not be visualized under standard US. Under FNAB, 34 consolidations ... squamous cell carcinoma (SCC) (12/61), large cell lung carcinoma (12/61), and lymphomas (4/61). Patients' age and mass ...

    Abstract Background: Despite the usefulness of elastography in assessing the stiffness/elasticity of tissues, and its proven diagnostic accuracy in thyroid, breast, and prostate cancers, among others, it is not yet applied in transthoracic ultrasound (TUS) scans to investigate lung nodules.
    Purpose: To investigate the potential clinical utility of TUS elastography in diagnosing lung cancer proven by fine-needle aspiration biopsy (FNAB).
    Material and methods: TUS elastography was performed in 95 consecutive patients (71 men, 24 women; age, 62.84 ± 7.37 years) with lesions suspected of involving the chest wall or the pleura detected on chest X-ray or computed tomography (CT). Patients with pleural effusions were not enrolled, but were further evaluated by pleural fluid cytology. Patients were excluded from the study if a diagnosis had already been made based on sputum cytology and/or bronchoscopic histology (making TUS biopsy unnecessary) or if their lung lesions could not be visualized under standard US. Under FNAB, 34 consolidations were ascribed to pneumonia and 65 to cancer. Under TUS, tissue stiffness, detected using a convex multifrequency 2-8-mHz probe and a MyLab™Twice - ElaXto, was scored from 1 (greatest elasticity) to 5 (no elasticity). Subpleural solid masses (2-5 cm) were initially detected by TUS and subsequently assessed by FNAB.
    Results: Histological diagnoses were: small cell lung cancer (4/61), adenocarcinoma (29/61), squamous cell carcinoma (SCC) (12/61), large cell lung carcinoma (12/61), and lymphomas (4/61). Patients' age and mass sizes (3.06 ± 0.88 cm) were not significantly associated with any histological type. A significant lower elasticity of SCC (4.67 ± 0.492) was observed versus other types of lung cancer (P < 0.005), and versus pneumonia (2.35 ± 0.48).
    Conclusion: Since only squamous cell lung carcinoma displays the feature of significantly reduced elasticity, and since no clear-cut diagnostic key is yet available, the clinical usefulness of TUS elastography is currently limited with a view to characterizing tumors. Nevertheless, it does enable good non-invasive imaging of lung nodules, providing information on their stiffness, and can improve the accuracy and yield of FNAB.
    MeSH term(s) Biopsy, Fine-Needle ; Carcinoma/diagnostic imaging ; Carcinoma/pathology ; Elasticity Imaging Techniques/methods ; Female ; Humans ; Lung/diagnostic imaging ; Lung/pathology ; Lung Neoplasms/diagnostic imaging ; Lung Neoplasms/pathology ; Lymphoma/diagnostic imaging ; Lymphoma/pathology ; Male ; Middle Aged ; Reproducibility of Results ; Small Cell Lung Carcinoma/diagnostic imaging ; Small Cell Lung Carcinoma/pathology ; Ultrasonography, Interventional
    Language English
    Publishing date 2015-07
    Publishing country England
    Document type Journal Article ; Observational Study
    ZDB-ID 105-3
    ISSN 1600-0455 ; 0284-1851 ; 0349-652X
    ISSN (online) 1600-0455
    ISSN 0284-1851 ; 0349-652X
    DOI 10.1177/0284185114538424
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: [Usefulness of three-dimensional color Doppler sonography for the differential diagnosis of subpleural lesions].

    Hamazaki, N / Kounoike, Y / Makinodan, K / Nakatani, M / Usuba, K / Ueda, K / Okada, T / Egawa, S / Takeshita, S / Ohishi, H / Narita, N

    Nihon Kokyuki Gakkai zasshi = the journal of the Japanese Respiratory Society

    2001  Volume 39, Issue 7, Page(s) 453–460

    Abstract: ... the inflamed region of the lung was appreciated more easily from three-dimensional images than from two ... lesions (11 pneumonias, 5 lung abscesses, 11 primary lung cancers, 3 metastatic lung cancers) were ... the lung cancers differed significantly. Our results suggest that the three-dimensional color Doppler power mode is ...

    Abstract The purpose of our investigation was to assess the usefulness of three-dimensional color Doppler sonography (velocity mode and power mode) for the differential diagnosis of subpleural lesions. Thirty lesions (11 pneumonias, 5 lung abscesses, 11 primary lung cancers, 3 metastatic lung cancers) were examined. Three-dimensional images were reconstructed by a maximum intensity projection method. Three-dimensional representations of intralesional blood flow became available for all lesions approximately 11 seconds after scanning. In every case, the entire vasculature of the tumor, the pneumonia, the abscess, or the inflamed region of the lung was appreciated more easily from three-dimensional images than from two-dimensional images. We classified the color flow pattern of subpleural lesions depicted by color flow imaging into seven groups. Color flow was depicted better by the three-dimensional color Doppler power mode than the velocity mode. Three-dimensional color flow patterns observed in power mode, patterns of the pneumonias and the lung cancers differed significantly. Our results suggest that the three-dimensional color Doppler power mode is useful for the differential diagnosis of subpleural lesions.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Diagnosis, Differential ; Humans ; Lung Abscess/diagnostic imaging ; Lung Neoplasms/diagnostic imaging ; Middle Aged ; Pneumonia/diagnostic imaging ; Ultrasonography, Doppler, Color/methods
    Language Japanese
    Publishing date 2001-07
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 1456536-5
    ISSN 1345-9538 ; 1343-3490
    ISSN (online) 1345-9538
    ISSN 1343-3490
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Repeated ultrasonically guided needle biopsy of small subpleural nodules.

    Obata, K / Ueki, J / Dambara, T / Fukuchi, Y

    Chest

    1999  Volume 116, Issue 5, Page(s) 1320–1324

    Abstract: ... to 77%. In these small tumors, no serious complications were caused by the procedure.: Conclusions ... UGNB should be performed twice for a definitive diagnosis of small subpleural nodules before deciding ... Study objective: To detect the significance of repeated ultrasonically guided needle biopsy (UGNB ...

    Abstract Study objective: To detect the significance of repeated ultrasonically guided needle biopsy (UGNB) for the diagnosis of nodular lesions </= 2 cm in diameter.<br />Design: Retrospective study to evaluate the diagnostic yield of UGNB.
    Setting: University hospital, outpatients, and inpatients of the respiratory department.
    Patients: One hundred seven cases with small nodular lesions </= 2 cm in diameter in contact with the pleura. Sixty-two of 107 cases were malignant, and the others were benign diseases.<br />Results: Initial UGNB identified 56% (35/62) of the malignant lesions and 16% (7/45) of the benign lesions, ie, 39% (42/107) of the total. In 35 of 65 cases that were not diagnosed by the initial UGNB, it was repeated. Diagnostic yields of the second UGNB were 68% (13/19) of the malignant cases, 25% (4/16) of the benign cases, yielding a total of 49% (17/35) in those reexamined. Furthermore, 51 of 65 patients with negative findings on the initial UGNB underwent fiberoptic bronchoscopy. The resulting diagnostic yields were 22% (5/23) from the malignant lesions and 18% (5/28) from the benign lesions, 20% (10/51) in total. Thus, among the malignant cases, the repetition of UGNB increased the definitive diagnostic yield from 56% (the initial UGNB) to 77%. In these small tumors, no serious complications were caused by the procedure.
    Conclusions: UGNB should be performed twice for a definitive diagnosis of small subpleural nodules before deciding on surgical biopsy or follow-up.
    MeSH term(s) Biopsy, Needle/methods ; Bronchoscopy ; Carcinoma, Small Cell/diagnostic imaging ; Carcinoma, Small Cell/pathology ; Diagnosis, Differential ; Fiber Optic Technology ; Follow-Up Studies ; Hospitals, University ; Humans ; Inpatients ; Lung Neoplasms/diagnostic imaging ; Lung Neoplasms/pathology ; Outpatients ; Radiography, Thoracic ; Retrospective Studies ; Ultrasonography
    Language English
    Publishing date 1999-11
    Publishing country United States
    Document type Comparative Study ; Journal Article
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1378/chest.116.5.1320
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  6. Article ; Conference proceedings: Elastografie subpleuraler Veränderungen – Möglichkeiten, Grenzen und Einflussfaktoren

    Kubale, R / Frenzel, F / Stroeder, J / Bücker, A / Minko, P / Wilkens, H

    Ultraschall in der Medizin - European Journal of Ultrasound

    2014  

    Abstract: ... der Verschieblichkeit von Geweben. : Ergebnisse: In den gesunden Lungen lies sich in der DiMap eine scharfe Trennung ... zur Diagnostik subpleuraler fibrosierender Lungenveränderungen. Insbesondere dorso-basal ist jedoch aufgrund ... zur Darstellung von Brusttumoren, die mit einer Sensitivität von 70,1% und Spezifität von 98,5% differenziert ...

    Event/congress Ultraschall 2014, Innsbruck, 2014
    Abstract Problemstellung: Neben der B-Bild-Sonografie ermöglichen elastographische Verfahren wie das Shear Wave Imaging (SVI), die Steifigkeit von Gewebe zu messen. Bereits etabliert ist die Anwendung zur Darstellung von Brusttumoren, die mit einer Sensitivität von 70,1% und Spezifität von 98,5% differenziert werden können sowie zur Ermittlung der Leberfibrose. Ziel unserer Studie war es, die Anwendbarkeit des SVI auf den subpleuralen Raum zu erarbeiten.
    Patienten und Methode: Anhand von 25 Probanden mit gesundem Lungenparenchym sowie 22 Patienten mit fibrosierenden Veränderungen (davon 6 einseitig transplantierte) wurden SVI-Technik (Siemens S3000) und HRCT verglichen. Angewandt wurden das quantitative SVI-Bild (Shear-wave Map), das die Gewebesteifigkeit in m/s darstellt sowie die Displacement Map (DiMap) zur farblich kodierten Abbildung der Verschieblichkeit von Geweben.
    Ergebnisse: In den gesunden Lungen lies sich in der DiMap eine scharfe Trennung zwischen dem gut verschieblichen Lungenparenchym und den Thoraxwandstrukturen ausmachen und bis in 5 cm Tiefe beurteilen. Falsch positive Fälle (n = 4) erklärten sich durch subpleurale Metastasen, ein Infiltrat und zu große Tiefe. In der Gruppe der Patienten mit fibrosierenden Veränderungen zeigte sich in 21/22 Fällen eine reduzierte Verschieblichkeit des Subpleuralraumes in der DiMap, welche mit den Veränderungen im HRCT korrelierte. Quantitative Messungen bei einseitig transplantierten Patienten zeigten zwar einen signifikanten Unterschied hinsichtlich der Scherwellengeschwindigkeit, im Gegensatz zur DiMap, die in über 90% der Fälle ableitbar war, waren diese Messungen jedoch nur in 71% möglich.
    Schlussfolgerungen: Die ersten Versuche, insbesondere an einseitig transplantierten Patienten, postulieren die Anwendbarkeit der SVI-Technik zur Diagnostik subpleuraler fibrosierender Lungenveränderungen. Insbesondere dorso-basal ist jedoch aufgrund der kräftigen Muskulatur auf falsch-positive Befunde zu achten.
    Language German
    Publishing date 2014-09-24
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 801064-x
    ISSN 1438-8782 ; 0172-4614 ; 1439-0914 ; 1431-4894
    ISSN (online) 1438-8782
    ISSN 0172-4614 ; 1439-0914 ; 1431-4894
    DOI 10.1055/s-0034-1389534
    Database Thieme publisher's database

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  7. Article ; Conference proceedings: Scherwellenelastografie des Subpleuralraumes bei fibrosierenden Lungenerkrankungen – Vorversuche und erste klinische Anwendungen

    Kubale, R / Ströder, J / Lensch, C / Buecker, A / Bals, R / Wilkens, H

    Pneumologie

    2014  

    Abstract: ... die Anwendbarkeit des SVI zur Diagnostik von subpleuralen Lungenveränderungen. Zur Zeit wird als Konsequenz ... der Leber. Ziel dieser Studie war es, die Anwendbarkeit des SVI auf die Lunge zu überprüfen und an ersten ... Normale Lungen zeigten in der DMap eine scharfe Trennung zwischen dem gut verschieblichen Lungenparenchym ...

    Event/congress 55. Kongress der Deutschen Gesellschaft für Pneumologie und Beatmungsmedizin e.V., Bremen, 2014
    Abstract Hintergrund: Neben der B-Bild Sonografie können elastographische Verfahren wie Strain Imaging oder das Shear-wave Imaging (SVI) die Steifigkeit von Gewebe messen. Etablierte Anwendungen sind Brust Tumoren, die mit einer Sensitivität und Spezifität von 70,1% bzw. 41,0 – 98,5% differenziert werden können sowie Messungen des Fibrosegrades der Leber. Ziel dieser Studie war es, die Anwendbarkeit des SVI auf die Lunge zu überprüfen und an ersten klinischen Fällen Machbarkeit und die Wertigkeit für den subpleuralen Raum zu erarbeiten.
    Methodik und Patienten: Bei 25 Patienten mit normalem Lungenparenchym sowie 22 Patienten mit fibrosierenden Veränderungen (davon 6 einseitig transplantierte) wurden SVI-Technik (Siemens S3000) und HRCT verglichen. Verwendet wurde das quantitative SVI Bild (Shear wave map), das die Steifigkeit im m/s sowie die Displacement Map (DMap), die farblich kodiert die Verschieblichkeit des Lungengewebes anzeigt.
    Ergebnisse: Normale Lungen zeigten in der DMap eine scharfe Trennung zwischen dem gut verschieblichen Lungenparenchym und Thoraxwandstrukturen. Eine Beurteilbarkeit war bis 5 cm Tiefe möglich. Falsch positive Fälle (n = 4) erklärten sich je durch subpleurale Metastasen, ein Infiltrat und zu große Tiefe. 21/22 Fälle mit Fibrosen zeigten eine deutlich reduzierte Verschieblichkeit des subleuralen Parenchyms, das mit den Veränderungen im HRCT korrelierte. Quantitative Messungen bei einseitig transplantierten Patienten zeigten zwar einen signifikanten Unterschied in der Scherwellengeschwindigkeit mit einem cut-off Wert und 2,3 m/s. Im Gegensatz zur DiMap, die in über 90% der Fälle ableitbar war, waren diese Messungen jedoch nur in 71% möglich.
    Diskussion: Die ersten Versuche insbesondere an einseitig transplantierten Patienten, zeigten die Anwendbarkeit des SVI zur Diagnostik von subpleuralen Lungenveränderungen. Zur Zeit wird als Konsequenz dieser Vorstudie, die ursprünglich für Schilddrüse und Mamma optimierte Technik angepasst, um auch die basalen Lungenpartien untersuchen zu können. Potentielle Indikationen sind neben der Früherfassung und Verlaufskontrolle von Fibrosen die Erfassung peripherer Veränderungen im Rahmen rheumatischer Erkrankungen und Kollagenosen, der RT sowie wahrscheinlich auch des peripheren Wassergehaltes der Lunge.
    Language German
    Publishing date 2014-02-24
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 607630-0
    ISSN 1438-8790 ; 0934-8387
    ISSN (online) 1438-8790
    ISSN 0934-8387
    DOI 10.1055/s-0034-1367941
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  8. Article: Ul'trazvukovaia diagnostika subplevral'nykh pristenochnykh obrazovaniĭ legkikh.

    Shakhov, B E / Safonov, D V / Belousov, Iu V

    Vestnik khirurgii imeni I. I. Grekova

    2000  Volume 159, Issue 5, Page(s) 85–90

    Abstract: ... with subpleural parietal formations of the lungs of inflammatory and tumorous etiology ... with those of the peripheral lung carcinoma. The echoscopic pictures typical of each disease were revealed. ... The article generalizes experiences with ultrasonic scanning of the chest in patients ...

    Title translation Ultrasonic diagnosis of subpleural parietal formations of the lung.
    Abstract The article generalizes experiences with ultrasonic scanning of the chest in patients with subpleural parietal formations of the lungs of inflammatory and tumorous etiology. The technique of the investigation and criteria of the assessment of the pathological focus are described. The normal echoscopic picture of the chest was determined. The ultrasonic images of the abscesses were compared with those of the peripheral lung carcinoma. The echoscopic pictures typical of each disease were revealed.
    MeSH term(s) Diagnosis, Differential ; Empyema, Pleural/diagnostic imaging ; Humans ; Lung Abscess/diagnostic imaging ; Lung Diseases/diagnostic imaging ; Lung Neoplasms/diagnostic imaging ; Pleurisy/diagnostic imaging ; Ultrasonography
    Language Russian
    Publishing date 2000
    Publishing country Russia (Federation)
    Document type Comparative Study ; Journal Article
    ZDB-ID 603433-0
    ISSN 0042-4625
    ISSN 0042-4625
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