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  • 1
    ISSN: 1432-1084
    Keywords: Aorta, abnormalities ; Aorta, MR ; Veins, innominate ; Veins, abnormalities
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of a right cervical aortic arch associated with a subaortic left brachiocephalic vein is reported. CT and MRI findings were correlated to the angiogram. The mechanism responsible for the coexistence of these two abnormalities is discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1084
    Keywords: Malformations ; Congenital anomalies ; Aortic arch
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this article is to simplify the description of congenital anomalies of the aortic arch by developing a new classification system. Nine selected cases were retrospectively analyzed with the current classification and the new classification. We found that single anomalies of position or caliber were easy to classify. When complex anomalies were present classification was difficult, because only one aspect of the anomaly gives undue emphasis to that feature. We conclude that a system that details each anomaly on the basis of its abnormality of position and caliber, with reference to the normal situation, is an improvement. This new classification includes all of the potential aortic anomalies and facilitates their analysis. It appears to be a logical system that recognizes that congenital aortic malformations are a continuous spectrum from those anomalies purely of position to those purely of caliber.
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  • 3
    ISSN: 1432-1084
    Keywords: Key words: Computed tomography (CT) ; helical ; Lung ; abnormalities ; CT ; Trachea ; abnormalities ; Bronchi ; CT ; abnormalities
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Congenital abnormalities of the bronchi have been classically described with chest X-rays, conventional tomography, bronchography, CT and MR imaging. Recently, the capacity of spiral CT to explore a complete volume with no gap and excellent multiplanar reformations has been emphasized. The contribution of this technique to the analysis of congenital anomalies of tracheobronchial branching patterns encountered in adult patients is illustrated. Agenesis, aplasia, and hypoplasia are discussed, followed by bronchial atresia and abnormalities of bronchial divisions. In most cases spiral CT permits a full and correct evaluation of the malformation as well as its associated anomalies. It appears therefore to be the preferable technique for studying such anomalies of the tracheobronchial tree. Moreover, knowledge of CT aspects of the main congenital bronchial abnormalities along with complete visualization of the tracheobronchial tree will probably lead to detection of more incidental anomalies.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1084
    Keywords: Key words: Bronchiolitis ; Smoking ; Ground-glass opacity ; High-resolution CT ; Lung diseases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A small number of cases of cigarette-smoking-associated respiratory bronchiolitis (RB) with positive findings on the chest radiograph have been reported in the literature. High-resolution computed tomography (HRCT) findings are available in even fewer cases. We describe the case of an asymptomatic female smoker presenting with a reticulomicronodular infiltrate on a routine chest radiograph. High-resolution CT was characterized by ground-glass opacities and centrilobular micronodules with an upper lobe predominance. Surgical biopsy revealed peribronchiolar lesions, with accumulation of brown pigmented macrophages in the lumen of alveolar and bronchiolar lumen, consistent with the pathologic diagnosis of RB.
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  • 5
    ISSN: 1432-1084
    Keywords: Key words: Hip – MRI – MR arthrography – Acetabular labrum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. This pictorial review illustrates the anatomical features of normal intra-articular components of the hip and their common disorders on MR arthrography. On T1-weighted MR arthrograms, the normal contrast-filled joint cavity shows a homogeneous high signal intensity. Normal acetabular labrum appears as a well-delineated triangle showing a low signal intensity, surrounded by contrast material in the perilabral recess. Intra-articular paramagnetic contrast outlines labral tears, loose bodies, communicating labral cysts and cartilage lesions (traumatic tears, focal defects, degenerative fissures and thinning), and improves their detection. Overall, MR arthrography enables accurate detection and staging of hip intra-articular structure abnormalities.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1084
    Keywords: Heart ; Lung ; Nodule ; Lymphoma ; CT ; Transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Posttransplant lymphoproliferative disorders (PTLD), developing after immunosuppressive therapy in human organ-graft recipients, are, for the most part, Epstein-Barr virus-induced. The earlier the diagnosis is made, the greater the potential for reversibility. The chest radiographs and CT scans of 10 patients with thoracic locations of PTLD were reviewed. Mediastinal (n = 3) and hilar adenopathy (n = 2), pulmonary nodules (n = 8), and pleural thickening or effusion (n = 4) were encountered. The incidence of partial resolution with clinical remission (n = 4) appears to be noteworthy, and in all likelihood is related to the extensive necrosis (n = 5) that is frequently seen. Slow regression, transitory deterioration in one case, and localization only on the graft side in two cases, were observed. These morphological and evolutionary peculiarities must be known in order to optimize the diagnosis, and thus the prognosis, of these very original disorders.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 7 (1997), S. 1430-1435 
    ISSN: 1432-1084
    Keywords: Key words: MRI ; Superficial plantar fascia ; Musculoaponeurositis ; Enthesopathy ; Traumatology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. At present, MRI is the only imaging method that can precisely visualize lesions of the superficial plantar aponeurosis, whether they be musculoaponeurositides, enthesopathies or tears, and whether they be acute or chronic, with or without complications. By its direct visualization of the lesion, MRI enables an accurate assessment of the injury to be made and thereby better orients the therapeutic strategy.
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  • 8
    ISSN: 1432-1084
    Keywords: Bronchiectasis ; Bronchi, CT ; Diagnostic radiology, observer performance ; Lung, diseases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of the study was to evaluate the CT abnormalities of airways and lung parenchyma in asthmatic patients and to assess inter- and intraobserver variability for these abnormalities. The CT scans of 50 asthmatic patients and 10 healthy volunteers were assessed independently by four independent chest radiologist who were masked with respect to the clinical information. Bronchiectasis involving mostly subsegmental and distal bronchi was noted in 28.5% of the asthmatic subjects and none of the non-asthmatics. Bronchial wall thickening, small centrilobular opacities and decreased lung attenuation were observed in 82%, 21% and 31% of asthmatic patients respectively, compared with 7%, 5% and 7% of healthy subjects. The intra- and inter-observer agreements for these four CT abnormalities were measured by the kappa statistic and ranged from 0.60 to 0.79 and from 0.40 to 0.60, respectively. It os concluded that asthmatic patients may exhibit bronchial wall thickening, bronchiectasis and morphological abnormalities suggestive of distal airways disease that can be assessed on CT scans with a clinically acceptable observer variability.
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  • 9
    ISSN: 1432-1084
    Keywords: Key words: Foreign bodies ; Textiloma ; Surgery complications ; Medicolegal problems ; CT ; MR imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We describe changes in imaging features of a textiloma (retained surgical sponge or retained foreign body) left in the renal fossa after exploratory renal surgery. One year after the initial surgery, the MR aspect of the textiloma was not specific, with a homogeneous low signal intensity on T1-weighted images. Serial CT examinations over 4 years demonstrated progressive growth and calcification of the mass which appeared pseudocystic with a peripheral inflammatory wall. Granulomas caused by a retained surgical sponge should be considered as a cause of retroperitoneal mass in patients with a history of prior surgery.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 6 (1996), S. 513-513 
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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