CT identification of bronchopulmonary segments: 50 Normal subjects

American Journal of Roentgenology (Impact Factor: 2.73). 02/1984; 142(1):47-52. DOI: 10.2214/ajr.142.1.47
Source: PubMed


A systematic evaluation of the fissures, segmental bronchi and arteries, bronchopulmonary segments, and peripheral pulmonary parenchyma was made from computed tomographic (CT) scans of 50 patients with normal chest radiographs. Seventy percent of the segmental bronchi and 76% of the segmental arteries were identified. Arteries could be traced to their sixth- and seventh-order branches; their orientation to the plane of the CT section allowed gross identification and localization of bronchopulmonary segments.

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    • "The hyperaeration score (range, 0-18) is the number of BP segments (15, 16) showing areas of reduced lung attenuation, mosaic attenuation pattern, or bulla/bleb (Table 1). A mosaic attenuation pattern was defined as a patchwork of regions of differing attenuation (17), including both hypoattenuated areas with small vessels (mosaic oligemia) and hypoattenuated areas with normal-caliber vessels (18). "
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    ABSTRACT: To develop an high resolution computed tomography (HRCT) scoring system for the assessment of bronchopulmonary dysplasia (BPD) and determine its usefulness as compared with the chest radiographic score. Forty-two very low-birth-weight preterm infants with BPD (25 male, 17 female) were prospectively evaluated with HRCT performed at the mean age of 39.1-week postmenstrual age. Clinical severity of BPD was categorized as mild, moderate or severe. The HRCT score (0-36) of each patient was the sum of the number of bronchopulmonary segments with 1) hyperaeration and 2) parenchymal lesions (linear lesions, segmental atelectasis, consolidation and architectural distortion), respectively. We compared the HRCT scores with the chest radiographic scores (the Toce system) in terms of correlation with clinical severity. The HRCT score had good interobserver (r = 0.969, p < 0.001) and intraobserver (r = 0.986, p < 0.001) reproducibility. The HRCT score showed better correlation (r = 0.646, p < 0.001) with the clinical severity of BPD than the chest radiographic score (r = 0.410, p = 0.007). The hyperaeration score showed better correlation (r = 0.738, p < 0.001) with the clinical severity of BPD than the parenchymal score (r = 0.523, p < 0.001). We have developed a new HRCT scoring system for BPD based on the quantitative evaluation of pulmonary abnormalities of BPD consisting of the hyperaeration score and the parenchymal score. The HRCT score shows better correlation with the clinical severity of BPD than the radiographic score.
    Full-text · Article · Feb 2013 · Korean journal of radiology: official journal of the Korean Radiological Society
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    • "Radiological assessment of the degree of anatomical change may reflect pulmonary functional limitation (10). Since the criteria used for the diagnosis of bronchiectasis on CT scanning were first established by Naidich et al. (2) in 1982, and it became possible to identify segmental bronchi and blood vessels using CT scans (22), a novel scoring system for bronchiectasis was developed by Bhalla et al. using thin section CT in 1991 (11). However, their study was limited by the use of different scales in one scoring system. "
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    ABSTRACT: To determine the relationship between high-resolution computed tomography (HRCT) findings, lung function, and bacteriology in bronchiectasis, we conducted a retrospective study of 49 Korean patients with stable bronchiectasis. To quantify the extent and severity of bronchiectasis, we used a CT scoring system consisting of bronchial dilatation, bronchial wall thickening, the number of bronchiectatic segments, the number of bulla, and the number of emphysema segments. The presence of air-fluid levels and lung consolidation were also evaluated. The results of CT scoring, spirometry and sputum culture were analyzed. Patients with cystic bronchiectasis had higher CT score, more dilated lumen and lower forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), and FEV1/FVC than patients with cylindrical bronchiectasis. Patients with mixed ventilatory impairment had larger number of bronchiectatic segments than patients with obstructive ventilatory impairment. CT score and the number of bronchiectatic segments were significantly associated with FVC and FEV1, while CT score and the number of emphysema segments were significantly associated with FEV1/FVC. Twenty-one patients of 49 patients showed a positive sputum culture including 15 cases of Pseudomonas aeruginosa. The CT score was the most important predictor of lung function. The presence of air-fluid levels predicted bacterial colonization.
    Full-text · Article · Mar 2004 · Journal of Korean Medical Science
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    • "Two Dimensional (2D) images require that the physician mentally determines 3D images from 2D slices, and this is difficult and error prone, particularly for more complex structures such as the lung (Naidich et al., 1993; Osborne et al., 1984). Three dimensional (3D) image-based displays of radiological data avoid this problem by explicit representing the data in 3D, literally improving the interpretation of the images (Sonka et al., 1994; Sonka et al., 1996; D'Souza, et al., 1996). "
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    ABSTRACT: Computed Tomography (CT) provides a large amount of data but the presentation of the data to a physician can be less than satisfactory. Ideally, the image data should be available to physicians in interactive 3D to allow for improved visualization, planning and diagnosis. A virtual reality representation that not only allows for the manipulation of the image but also allows for the user to, in effect, move inside the image remotely would be ideal. In this paper the research associated with virtual reality is discussed. A formalism is then presented to create, from the CT data, the virtual reality world in the Virtual Reality Modeling Language. An implementation is described of this formalism that uses the Internet to allow for users in remote locations to view and manipulate the virtual worlds.
    Full-text · Article · Nov 2003 · Computerized Medical Imaging and Graphics
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