Archive for the ‘Tracheobronchial Malignancies’ Category

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

Although SHR-CT scanning and VB presently cannot be utilized for the identification of preneoplastic lesions, these imaging modalities have a tremendous potential for clinical application. SHR-CT scanning and VB are noninvasive. The radiation exposure associated with these scans is comparable if not less than that of conventional CT scans of the chest. SHR-CT scanning and […]

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

As with SHR-CT scans and VBs, additional obstructive lesions were appreciated by CT scans that were not visualized by FB. Three of six of these obstructive lesions (50%) were confirmed to be positive by histologic evaluation. The locations of these lesions were in the left lower lobe (two lesions) and the right lower lobe (one […]

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

On the other hand, SHR-CT scans revealed 10 additional lesions, and VB demonstrated 11 additional lesions that were not evaluable by FB (Fig 3, bottom left, D, and bottom middle, E) due to the size limitation of the bronchoscope (9 cases) or to the location distal to high-grade stenoses (2 cases). Because many patients went […]

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

Image Acquisition Image acquisition and anatomic simulation of the tracheobronchial tree were successful in all patients, No adverse events were noted in the study group, There were no respiratory or cardiac motion artifacts that precluded image reconstruction, SHR-CT and VB Of the 32 patients who underwent correlative FBs, 9 (28%) had normal examination findings. In […]

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

VB images were converted to 3-D endoscopic views using commercial software (Navigator; General Electric) on a workstation (Advantage Windows; General Electric). The VB was derived from the SHR-CT axial images of the thorax with no further radiation exposure necessary. The radiologist (RMS), who was blinded to the findings of the other modalities, first placed the […]

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

The mean (± SD) age of all patients was 52 ± 12.2 years (median, 53 years; range, 29 to 88 years). Thirty-two patients (73%) were men (mean age, 52 ± 11.3 years; median age, 54 years; age range, 29 to 73 years), 12 patients (27%) were women (mean age, 52 ± 14.8 years; median age, […]

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

VB (also known as CT bronchography) employs three-dimensional (3-D) reconstruction of high-resolution helical CT images of the tracheobronchial tree. The contrast between the airway lumen and wall enables the generation of a 3-D anatomic model of tracheobronchial anatomy that provides views similar to those obtained during FB. Furthermore, VB enables the visualization of the tracheobronchial […]

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

Neoplasms involving the respiratory system cause significant morbidity and mortality. Primary lung cancers account for approximately 160,000 deaths annually in the United States. In addition, nearly one third of all patients with neoplasms of nonpulmonary origin develop life-threatening pulmonary metastases. Frequently, patients with primary or metastatic cancers involving the respiratory tract have partial or complete […]

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