The application of virtual bronchoscopy in the evaluation of hemoptysis: comparative evaluation with real fiberoptic bronchoscopy

Fiberoptic bronchoscopy (FOB) is one of the important modalities in helping to uphold the diagnosis and stadium of bronchogenic carcinoma. However, FOB has some limitations, namely invasive, time-consuming, requiring sedation, intolerable in patients who are critically ill, and difficult to evaluate distal airway side of severe stenosis. To identify the imaging capability of virtual bronchoscopy (VB) examinations in evaluating abnormalities in the tracheobronchial in bronchogenic carcinoma. Observational study with total sampling. Data was obtained from the histopathologic with diagnosis of bronchogenic carcinoma in 1 year. Retrospectively, the data were obtained from the archives of thoracic CT examinations in Radiology and FOB examination in Lung Operating Room. The variables assessed were the finding of mass of endobronchial based on its location, the main bronchi constriction, lobar bronchi constriction, segmental bronchi constriction, and compression/tracheal deformity. The results of VB were examined by three radiologists independently and were then compared with the results of FOB. The observation results of VB and FOB were used to analyse the degree of conformity. There is a low level of agreement on the finding of endobronchial mass, lobar bronchi and segmental bronchi constriction, sufficient level of agreement on the main bronchial constriction finding. VB has a limited capacity to evaluate abnormalities of the tracheobronchial compared with FOB, but VB has an advantage in evaluating the patency of the distal airway of severe obstruction.

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Ruptures of trachea and bronchi diagnosed by virtual bronchoscopy with multidetector computed tomography and fiberoptic bronchoscopy - advantages and shortcomings of methods

Srpski arhiv za celokupno lekarstvo ◽

10.2298/sarh190503033m ◽

2020 ◽

Vol 148 (5-6) ◽

pp. 286-291

Author(s):

Mitko Mitev ◽

Evelin Obretenov

Keyword(s):

Computed Tomography ◽

Multidetector Computed Tomography ◽

Fiberoptic Bronchoscopy ◽

Diagnostic Methods ◽

Virtual Bronchoscopy ◽

Lobar Bronchus ◽

Advanced Neoplasm ◽

Post Intubation ◽

Diagnostic Capabilities ◽

Trachea And Bronchi

Introduction/Objective. Fiberoptic bronchoscopy often is too aggressive, which requires the use of other noninvasive diagnostic methods. The study presents research results on the diagnostic capabilities of virtual bronchoscopy with multidetector computed tomography and fiberoptic bronchoscopy in traumatic abnormalities of trachea and main bronchi. Methods. A total of 21 patients (six males and 15 females) at the ages of 11?82 years (50.65 ? 19.8) were studied by the methods of virtual bronchoscopy with multidetector computed tomography and fiberoptic bronchoscopy. The diagnostic capabilities of virtual bronchoscopy as compared to fiberoptic bronchoscopy were assessed by established criteria. Results. Ruptures of the trachea and/or bronchi were proven by fiberoptic bronchoscopy in 21 patients and by virtual bronchoscopy in 19 patients. The greatest frequency was reported for the post-intubation ruptures (15 patients, 71.42% with virtual bronchoscopy; 16 patients, 76.19% with fiberoptic bronchoscopy), followed by post-traumatic ruptures (three patients, 14.29%); ruptures of trachea and the left lower lobar bronchus as a result of an advanced neoplasm of the esophagus (one patient, 4.76%), diagnosed by both methods; mucosal erosion after instrumental manipulations (4.76%, after fiberoptic bronchoscopy). Conclusion. Achieved diagnostic accuracy in ruptures of trachea and bronchi by virtual bronchoscopy is 90.47% and by fiberoptic bronchoscopy it is 100%. In terms of localization, shape and size, almost complete correspondence of changes with those of fiberoptic bronchoscopy was found. The presence of abundant secretion in virtual bronchoscopy may be interpreted incorrectly and efficiency of virtual bronchoscopy decreases.

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Comparative Evaluation of Super High-Resolution CT Scan and Virtual Bronchoscopy for the Detection of Tracheobronchial Malignancies *

CHEST Journal ◽

10.1378/chest.124.5.1834 ◽

2003 ◽

Vol 124 (5) ◽

pp. 1834-1840 ◽

Cited By ~ 59

Author(s):

Steven E. Finkelstein ◽

David S. Schrump ◽

Dao M. Nguyen ◽

Stephen M. Hewitt ◽

Tricia F. Kunst ◽

...

Keyword(s):

High Resolution ◽

Ct Scan ◽

Comparative Evaluation ◽

Virtual Bronchoscopy ◽

High Resolution Ct

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Computed Tomography Virtual Bronchoscopy: Normal Variants, Pitfalls, and Spectrum of Common and Rare Pathology

Canadian Association of Radiologists Journal ◽

10.1016/j.carj.2013.10.002 ◽

2015 ◽

Vol 66 (1) ◽

pp. 58-70 ◽

Cited By ~ 4

Author(s):

K.M. Das ◽

Hani Lababidi ◽

Sadeq Al Dandan ◽

Shanker Raja ◽

Hussam Sakkijha ◽

...

Keyword(s):

Computed Tomography ◽

Low Dose ◽

Fiberoptic Bronchoscopy ◽

Virtual Bronchoscopy ◽

Normal Variants ◽

Data Set ◽

Hybrid Iterative Reconstruction ◽

Therapeutic Landscape ◽

Characteristic Features ◽

Tomography Data

A broad spectrum of pathologies that involve the laryngotracheobronchial airway and imaging plays a crucial role in evaluating these abnormalities. Computed tomography with virtual bronchoscopy has been found to be very helpful in defining the location, extent, and nature of these lesions, and is increasingly being used even in patients with contraindications for fiberoptic bronchoscopy and laryngoscopy. Ionizing radiation, associated with virtual bronchoscopy, can be minimized by using low-dose multidetector computed tomography and hybrid iterative reconstruction techniques. Furthermore, retrospectively generated virtual bronchoscopy from a routinely acquired computed tomography data set eliminates additional cost and radiation. In the future, virtual bronchoscopy assisted with advanced navigational techniques will broaden the diagnostic and therapeutic landscape. This article presents the characteristic features of common and rare laryngotracheobronchial pathologies seen with virtual bronchoscopy.

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Virtual Bronchoscopy: Comparison of Different Surface Rendering Models

Technology in Cancer Research & Treatment ◽

10.1177/153303460300200310 ◽

2003 ◽

Vol 2 (3) ◽

pp. 273-279 ◽

Cited By ~ 4

Author(s):

Marcus D. Seemann ◽

Martin Heuschmid ◽

Joachim Vollmar ◽

Axel Küttner ◽

Wolfgang Schöber ◽

...

Keyword(s):

Computed Tomography ◽

Spatial Representation ◽

Spatial Relationship ◽

Fiberoptic Bronchoscopy ◽

Spiral Computed Tomography ◽

Virtual Bronchoscopy ◽

Surface Rendering ◽

Spiral Computed ◽

Primary Lung Tumors ◽

Tracheobronchial System

The aim of this study was to compare different representation models of surface-rendered virtual bronchoscopy. 10 consecutive patients with inoperable primary lung tumors underwent thin-section spiral computed tomography. The structures of interest, the tracheobronchial system and anatomical and pathological thoracic structures were segmented using an interactive threshold interval volume-growing segmentation algorithm and visualized with the aid of a color-coded surface rendering method. For virtual bronchoscopy, the tracheobronchial system was visualized using a triangle-surface rendering model, a shaded-surface rendering model and a transparent shaded-surface rendering model. The triangle-surface rendering model allowed optimum detailed spatial representation of the dimensions of extraluminal anatomical and pathological mediastinal structures. As the lumen of the tracheobronchial system was less well defined, the rendering model was of limited use for depiction of the airway surface. The shaded-surface rendering model facilitated an optimum assessment of the airway surface, but the mediastinal structures could not be depicted. The transparent shaded-surface rendering model provides simultaneous adequate to optimum visualization and assessment of the intraluminal airway surface and the extraluminal mediastinal structures as well as a quantitative assessment of the spatial relationship between these structures. Fast data acquisition with a multi-slice detector spiral computed tomography scanner and the use of virtual bronchoscopy with the transparent shaded-surface rendering model obviate the need for time consuming detailed analysis and presentation of axial source images by providing improved the diagnostic imaging of endotracheal and endobronchial diseases and offering a useful alternative to fiberoptic bronchoscopy.

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Study of Clinicoradiological Profile of Patients Undergoing Fiberoptic Bronchoscopy

MVP Journal of Medical Sciences ◽

10.18311/mvpjms/0/v0/i0/15609 ◽

2017 ◽

Vol 4 (1) ◽

pp. 70 ◽

Cited By ~ 1

Author(s):

Gauri Kulkarni ◽

Saurabh Ambadekar

Keyword(s):

Local Anesthesia ◽

Lung Biopsy ◽

Radiological Finding ◽

Fiberoptic Bronchoscopy ◽

Flexible Bronchoscopy ◽

Mass Lesion ◽

Common Finding ◽

Virtual Bronchoscopy ◽

Positive Correlation ◽

Visible Growth

Introduction: Bronchoscopy is a procedure to visualize the tracheobronchial tree. There are three types of Bronchoscopy, rigid, flexible, and virtual Bronchoscopy. Rigid bronchoscopy visualizes the proximal airways. Flexible bronchoscopy is the most common type of bronchoscopy. It visualizes the trachea, proximal airways, and segmental airways up to the third generation of branching and can be used to sample and treat lesions in those airways. Flexible bronchoscopy is generally performed in a procedure room with conscious sedation. Aims and Objectives: To study the bronchoscopic findings in patients undergoing fiberoptic bronchoscopy. To study clinical and radiological profile of patients undergoing fiberoptic bronchoscopy. To correlate the bronchoscopic findings with clinical and radiological profile of patients undergoing fiberoptic bronchoscopy. Methodology: Present study was conducted in the department of Respiratory Medicine of a Medical College and tertiary health centre. A total of 72 patients were included in this study after satisfying inclusion and exclusion criteria. The cases were recruited from the department of Respiratory and the referred cases from other department were also included. Written informed consent was taken from all the patients after explaining complications occurring during and after bronchoscopy. Procedure was done under local anesthesia. Information regarding clinical features and radiological findings were noted in predesigned proforma. Results: In this study 72 patients underwent fiberoptic bronchoscopy. Procedure was done under local anesthesia in all these patients. All these were diagnostic bronchoscopies. The bronchoscopy was done more in male (68.05%) as compared to females (31.94%). Consolidation (43.06%) was most common radiological finding followed by meditational mass lesion (26.39%). The most common finding on bronchoscopy was growth (25%) followed by secretions (22.22%). However in 27.78% patients no bronchoscopic finding was seen; these were patients with subcarinal lymph node, some cases of pneumonias, some cases of bronchiectasis. In those cases where no finding was seen bronchoalveolar lavage was taken. BAL (68 cases) was the most common procedure done, second most common was lung biopsy of the visible growth (21) However biopsy of the visible growth was more accurate with the accuracy rate of 76.91% followed by trans bronchial lung biopsy of the suspected lesion. Bronchoscopy was conclusive to give final diagnosis in 56 out of 72 cases. There was positive correlation between clinicoradiological diagnosis and bronchoscopic diagnosis. In 59.72% cases there was positive correlation between bronchoscopy and clinicoradiological findings.consolidation (43.06%) was most common radiological finding followed by meditational mass lesion (26.39%). Conclusions: Bronchoscopy is an excellent tool for the diagnosis of lung diseases, Radiological and clinical evaluation is very important prior to the bronchoscopy. There is a correlation between clinicoradiological and bronchoscopic diagnosis.A multimodality approach for the diagnosis is always helpful.

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