Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy

Raza Sayani; Asad Afridi; Saad Siddiqui; Jawaid Iqbal; Ali Abbas

doi:doi:10.11648/j.ijmi.20160406.11

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Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy

Raza Sayani, Asad Afridi, Saad Siddiqui, Jawaid Iqbal, Ali Abbas

Published in International Journal of Medical Imaging (Volume 4, Issue 6)

Received: 12 September 2016 Accepted: 7 October 2016 Published: 18 November 2016

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Abstract

The aim of this study was to compare the diagnostic accuracy of 3-D virtual bronchoscopy (VB) with that of Fiber-optic (FB) bronchoscopy in patients who had symptoms of respiratory disorders. Thirty patients underwent VB examination. Thin section helical computerized tomography (CT) image were obtained. The volumetric data was downloaded to a workstation equipped with software for surface shaded rendering technique to achieve interactive 3-D virtual “fly-through” examinations of the tracheobronchial tree. Comparison was made between the results of 3-D virtual bronchoscopy, along with multiplanar reconstruction examination with the findings of conventional FB. This information was correlated with the surgical and pathological outcome wherever possible. Virtual bronchoscopy was true positive in twenty-four lesions. Further analysis revealed six cases were with strictures due to tracheobronchial tuberculosis or infection, eight were strictures due to carcinoma, five were endoluminal growths or polyps, three cases had nodes compressing the bronchi, one case had carcinoma of esophagus with tracheal extension and one had a congenital stricture. Virtual bronchoscopy was found false positive in one case, in which a polyp was misdiagnosed. Two endoluminal growths/ polyps were not appreciated on virtual bronchoscopy due to their small size and mild mucosal irregularity. Sensitivity, specificity, positive and negative predictive values were 96%, 50%, 92% and 66% respectively. To conclude VB represents a noninvasive method for evaluating helical CT findings. Further trials with larger sample size are needed on patient populations with any respiratory tract pathology, who do not have any gross findings on conventional examinations and are thus indicated for conventional bronchoscopy.

Published in	International Journal of Medical Imaging (Volume 4, Issue 6)
DOI	10.11648/j.ijmi.20160406.11
Page(s)	48-51
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Virtual Bronchoscopy, 3-D CT Bronchoscopy, Strictures

References

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[3]	Naidich, DP Gruden JF, McGuiness GM, McCauley DI, Bhalla M. Volumetric (helical/spiral) CT (VCT) of the airways. J Thorac Imaging. 1997; 12: 11-28.
[4]	Kauczor HU, Woicke B, Fischer B, Mildenberger P, Lorenz J, Thelen M. Three-dimensional helical CT of the tracheobronchial tree: evaluation of imaging protocols and assessment of suspect stenoses with bronchoscopy correlation. AJR Am J Roentgenol 1996; 167: 419-24.
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[7]	Hoppe H, Walder B, Sonnenschein M, Vock P, Dinkel HP. Multidetector CT Virtual Bronchoscopy to Grade Tracheobronchial Stenoses. Am. J. Roentgenol 2002; 178(5): 1195-1200.
[8]	Bhatti AI, Virtual Endoscopy. A comparative study of virtual and conventional endoscopies of gastrointestinal tract. Thesis for MD in diagnostic radiology. July 2001.
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[10]	Kauczor HU, Woicke B, Fischer B, Mildenberger P, Lorenz J, Thelen M. Three-dimensional helical CT of the tracheobronchial tree: evaluation of imaging protocols and assessment of suspect stenoses with bronchoscopy correlation. AJR Am J Roentgenol 1996; 167: 419-24.
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[15]	Gilkeson RC, Ciancibello LM, Hejal RB, Rana BH, Hugo DM, Paul Lange. Tracheobronchomalacia: dynamic airway evaluation with multidetector CT. AJR Am J Roentgenol 2001; 176: 205-10.
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APA Style

Raza Sayani, Asad Afridi, Saad Siddiqui, Jawaid Iqbal, Ali Abbas. (2016). Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. International Journal of Medical Imaging, 4(6), 48-51. https://doi.org/10.11648/j.ijmi.20160406.11

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ACS Style

Raza Sayani; Asad Afridi; Saad Siddiqui; Jawaid Iqbal; Ali Abbas. Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. Int. J. Med. Imaging 2016, 4(6), 48-51. doi: 10.11648/j.ijmi.20160406.11

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AMA Style

Raza Sayani, Asad Afridi, Saad Siddiqui, Jawaid Iqbal, Ali Abbas. Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. Int J Med Imaging. 2016;4(6):48-51. doi: 10.11648/j.ijmi.20160406.11

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@article{10.11648/j.ijmi.20160406.11,
  author = {Raza Sayani and Asad Afridi and Saad Siddiqui and Jawaid Iqbal and Ali Abbas},
  title = {Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy},
  journal = {International Journal of Medical Imaging},
  volume = {4},
  number = {6},
  pages = {48-51},
  doi = {10.11648/j.ijmi.20160406.11},
  url = {https://doi.org/10.11648/j.ijmi.20160406.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmi.20160406.11},
  abstract = {The aim of this study was to compare the diagnostic accuracy of 3-D virtual bronchoscopy (VB) with that of Fiber-optic (FB) bronchoscopy in patients who had symptoms of respiratory disorders. Thirty patients underwent VB examination. Thin section helical computerized tomography (CT) image were obtained. The volumetric data was downloaded to a workstation equipped with software for surface shaded rendering technique to achieve interactive 3-D virtual “fly-through” examinations of the tracheobronchial tree. Comparison was made between the results of 3-D virtual bronchoscopy, along with multiplanar reconstruction examination with the findings of conventional FB. This information was correlated with the surgical and pathological outcome wherever possible. Virtual bronchoscopy was true positive in twenty-four lesions. Further analysis revealed six cases were with strictures due to tracheobronchial tuberculosis or infection, eight were strictures due to carcinoma, five were endoluminal growths or polyps, three cases had nodes compressing the bronchi, one case had carcinoma of esophagus with tracheal extension and one had a congenital stricture. Virtual bronchoscopy was found false positive in one case, in which a polyp was misdiagnosed. Two endoluminal growths/ polyps were not appreciated on virtual bronchoscopy due to their small size and mild mucosal irregularity. Sensitivity, specificity, positive and negative predictive values were 96%, 50%, 92% and 66% respectively. To conclude VB represents a noninvasive method for evaluating helical CT findings. Further trials with larger sample size are needed on patient populations with any respiratory tract pathology, who do not have any gross findings on conventional examinations and are thus indicated for conventional bronchoscopy.},
 year = {2016}
}

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TY - JOUR
T1 - Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy
AU - Raza Sayani
AU - Asad Afridi
AU - Saad Siddiqui
AU - Jawaid Iqbal
AU - Ali Abbas
Y1 - 2016/11/18
PY - 2016
N1 - https://doi.org/10.11648/j.ijmi.20160406.11
DO - 10.11648/j.ijmi.20160406.11
T2 - International Journal of Medical Imaging
JF - International Journal of Medical Imaging
JO - International Journal of Medical Imaging
SP - 48
EP - 51
PB - Science Publishing Group
SN - 2330-832X
UR - https://doi.org/10.11648/j.ijmi.20160406.11
AB - The aim of this study was to compare the diagnostic accuracy of 3-D virtual bronchoscopy (VB) with that of Fiber-optic (FB) bronchoscopy in patients who had symptoms of respiratory disorders. Thirty patients underwent VB examination. Thin section helical computerized tomography (CT) image were obtained. The volumetric data was downloaded to a workstation equipped with software for surface shaded rendering technique to achieve interactive 3-D virtual “fly-through” examinations of the tracheobronchial tree. Comparison was made between the results of 3-D virtual bronchoscopy, along with multiplanar reconstruction examination with the findings of conventional FB. This information was correlated with the surgical and pathological outcome wherever possible. Virtual bronchoscopy was true positive in twenty-four lesions. Further analysis revealed six cases were with strictures due to tracheobronchial tuberculosis or infection, eight were strictures due to carcinoma, five were endoluminal growths or polyps, three cases had nodes compressing the bronchi, one case had carcinoma of esophagus with tracheal extension and one had a congenital stricture. Virtual bronchoscopy was found false positive in one case, in which a polyp was misdiagnosed. Two endoluminal growths/ polyps were not appreciated on virtual bronchoscopy due to their small size and mild mucosal irregularity. Sensitivity, specificity, positive and negative predictive values were 96%, 50%, 92% and 66% respectively. To conclude VB represents a noninvasive method for evaluating helical CT findings. Further trials with larger sample size are needed on patient populations with any respiratory tract pathology, who do not have any gross findings on conventional examinations and are thus indicated for conventional bronchoscopy.
VL - 4
IS - 6
ER -

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Author Information

Raza Sayani

Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan
Asad Afridi

Department of Community Health Sciences, Aga Khan University Hospital, Karachi, Pakistan
Saad Siddiqui

Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan
Jawaid Iqbal

Department of Radiology, Liaquat National Hospital, Karachi, Pakistan
Ali Abbas

Department of Medicine, Jinnah Postgraduate Medical Center, Karachi, Pakistan

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APA Style

Raza Sayani, Asad Afridi, Saad Siddiqui, Jawaid Iqbal, Ali Abbas. (2016). Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. International Journal of Medical Imaging, 4(6), 48-51. https://doi.org/10.11648/j.ijmi.20160406.11

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ACS Style

Raza Sayani; Asad Afridi; Saad Siddiqui; Jawaid Iqbal; Ali Abbas. Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. Int. J. Med. Imaging 2016, 4(6), 48-51. doi: 10.11648/j.ijmi.20160406.11

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AMA Style

Raza Sayani, Asad Afridi, Saad Siddiqui, Jawaid Iqbal, Ali Abbas. Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy. Int J Med Imaging. 2016;4(6):48-51. doi: 10.11648/j.ijmi.20160406.11

Copy | Download

@article{10.11648/j.ijmi.20160406.11,
  author = {Raza Sayani and Asad Afridi and Saad Siddiqui and Jawaid Iqbal and Ali Abbas},
  title = {Evaluation of Tracheobronchial Lesions with Virtual Bronchoscopy; Correlation with Fiber Optic Bronchoscopy},
  journal = {International Journal of Medical Imaging},
  volume = {4},
  number = {6},
  pages = {48-51},
  doi = {10.11648/j.ijmi.20160406.11},
  url = {https://doi.org/10.11648/j.ijmi.20160406.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmi.20160406.11},
  abstract = {The aim of this study was to compare the diagnostic accuracy of 3-D virtual bronchoscopy (VB) with that of Fiber-optic (FB) bronchoscopy in patients who had symptoms of respiratory disorders. Thirty patients underwent VB examination. Thin section helical computerized tomography (CT) image were obtained. The volumetric data was downloaded to a workstation equipped with software for surface shaded rendering technique to achieve interactive 3-D virtual “fly-through” examinations of the tracheobronchial tree. Comparison was made between the results of 3-D virtual bronchoscopy, along with multiplanar reconstruction examination with the findings of conventional FB. This information was correlated with the surgical and pathological outcome wherever possible. Virtual bronchoscopy was true positive in twenty-four lesions. Further analysis revealed six cases were with strictures due to tracheobronchial tuberculosis or infection, eight were strictures due to carcinoma, five were endoluminal growths or polyps, three cases had nodes compressing the bronchi, one case had carcinoma of esophagus with tracheal extension and one had a congenital stricture. Virtual bronchoscopy was found false positive in one case, in which a polyp was misdiagnosed. Two endoluminal growths/ polyps were not appreciated on virtual bronchoscopy due to their small size and mild mucosal irregularity. Sensitivity, specificity, positive and negative predictive values were 96%, 50%, 92% and 66% respectively. To conclude VB represents a noninvasive method for evaluating helical CT findings. Further trials with larger sample size are needed on patient populations with any respiratory tract pathology, who do not have any gross findings on conventional examinations and are thus indicated for conventional bronchoscopy.},
 year = {2016}
}

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