Computed Tomography‐Guided Bronchoscopy With an Ultrathin Fiberscope

Kobayashi, Toshiaki; Shimamura, Kayako; Hanai, Kohzoh; Kaneko, Masahiro

doi:10.1155/dte.2.229

Cited by 15 publications

(7 citation statements)

References 2 publications

(2 reference statements)

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“…The marking technique essentially entails the installation of a barium-sulfate suspension near lesions that are not detectable fluoroscopically or thorascopically. 9,10 A final issue covers the determination of standardized treatments for CT-detected lesions. Current practice dictates the performance of a lobectomy for patients with these lesions based on the unacceptably high rates of disease recurrence in patients with incompletely resected tumors.…”

Section: Ct Screening: Problems and Solutionsmentioning

confidence: 99%

Computed tomography screening for lung carcinoma in Japan

Kaneko¹,

Kusumoto²,

Kobayashi³

et al. 2000

Cancer

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Low dose spiral CT shows promise for lung carcinoma screening. The effectiveness of the technique for the detection of minute lung lesions remains to be established. Routine use of the technique will require resolution of several issues. These issues include the establishment of CT diagnostic criteria, the development of a diagnostic support system, the establishment of methods for definite diagnosis, and assessments of efficacy.

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Section: Ct Screening: Problems and Solutionsmentioning

confidence: 99%

Computed tomography screening for lung carcinoma in Japan

Kaneko¹,

Kusumoto²,

Kobayashi³

et al. 2000

Cancer

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“…To make use of this advantage, we have proposed a method in which a bronchoscope is navigated using virtual bronchoscopic images en route to the lesion (virtual bronchoscopic navigation: VBN) (11). For a method that combines measures addressing the two abovementioned problems stated, Kobayashi et al reported CTguided ultrathin bronchoscopy (12). Using the combination of ultrathin bronchoscopy and CT, the position of the biopsy apparatus at the lesion can be more accurately confirmed.…”

Section: Introductionmentioning

confidence: 99%

CT-guided Ultrathin Bronchoscopy: Bioptic Approach and Factors in Predicting Diagnosis

Matsuno¹,

Asano²,

Shindoh

et al. 2011

Intern. Med.

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Background The diagnostic sensitivity of current bronchoscopy for peripheral lung cancer is inadequate because the bronchoscope insertion range is limited and confirmation of the position of the biopsy apparatus at the lesion under X-ray fluoroscopy is inaccurate. The combination of ultrathin bronchoscopy and computed tomography (CT) is effective for solving these problems. Objective This study was a retrospective study analyzing prospectively collected data to identify factors contributing to the diagnosis and the appropriate biopsy method in CT-guided ultrathin bronchoscopy for peripheral lung cancer. Methods The subjects comprised 86 patients (88 lesions) who underwent CT-guided ultrathin bronchoscopy and were finally diagnosed with peripheral lung cancer. We evaluated the diagnostic yield according to specific factors and also according to the sample collection method. Results Sixty-nine lesions were diagnosed as lung cancer, and the diagnostic yield was 78.4% (80.3% in lesions !2 cm in diameter). Multivariate analysis showed that the factors contributing to the diagnosis were the observation range by ultrathin bronchoscopy and the presence/absence of the involved bronchus or pulmonary artery. Pathological evaluation facilitated histological diagnoses in 53 (65.4%) of 81 lesions. In 16 lesions, only the cytological diagnosis was positive. Conclusion CT-guided ultrathin bronchoscopy may be particularly useful for lesions for which the involved bronchus or pulmonary artery can be confirmed, and observation of bronchi of the 6th generation or more is possible. Since the specimen preparation rate is low, the combination of histopathological diagnosis with cytological diagnosis particularly that of the discharge attached to the forceps, is optimal.

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“…One of the reasons for this result is that small lesions cannot be confirmed by X-ray fluoroscopy alone, and it cannot be confirmed whether biopsy forceps or a brush accurately hit the lesion. To overcome this problem, CT fluoroscopy [11,12], endobronchial ultrasonography (EBUS) [13,14], and the electromagnetic method [15,16] have been used to confirm lesions diagnosed by TBB. EBUS is advantageous over the other methods because of the absence of X-ray exposure and because there is no need for expensive equipment other than an ultrasonography system.…”

Section: Introductionmentioning

confidence: 99%