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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 257-263 
    ISSN: 1279-8517
    Keywords: Thorax, anatomy ; Computed radiography (thorax) ; Pleura, anatomy ; Lung, anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this work was to describe the radiologic anatomy of the inferior lung margins (ILMs). The method was to enhance the low frequencies of 50 normal chest computed radiographs. On each side, the anterior and posterior ILMs were divided into two halves. The frequency of visibility of each half of each ILM was calculated as their shape, lateral and medial continuities, depth, and vertebral level. The differences were compared by a paired Student t-test. The right posterior ILM was always visible and usually concave upward (94%). Its height was 8.7 ± 1.6 cm. Its most inferior part faced L1 or L2 in 92% of cases. It was continuous medially inside with the azygo-esophageal recess in 96% of cases. The left posterior ILM was not visible laterally in 34% of cases and medially in 60% of cases. It was most often concave upward (82% of cases). Its height was 6.9 ± 1.5 cm. Its most inferior part was at the level of L1 or L2. It was continuous medially with either the left paraspinal line or the paraaortic line. The right anterior ILM was visible in 76% of cases. It was most often oblique upward and medially (46%) or concave upward (33%) and often notched (38%). The left anterior ILM was visible in 64% of cases and more often oblique inward and upward (58%). It was continuous medially with the left inferior precardiac recess. The anterior ILMs were more variable than the posterior. The posterior ILMs were very similar in shape and inferior level and differed in depth only by the difference of height of the diaphragmatic cupolas.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 257-263 
    ISSN: 1279-8517
    Keywords: Thorax, anatomy ; Computed radiography (thorax) ; Pleura, anatomy ; Lung, anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le but de ce travail était de décrire l'anatomie radiologique des recessus pulmonaires inférieurs (RPI). Le matériel et la méthode ont consisté à amplifier très fortement les basses fréquences de 50 radiographies numérisées normales du thorax. De chaque côté les RPI antérieurs et postérieurs ont été divisés en deux moitiés (interne et externe). La fréquence de la visibilité de chaque moitié de chaque RPI a été calculée ainsi que leur forme et leur continuité interne et externe, leur profondeur, leur niveau le plus bas en se repérant par rapport aux vertèbres. Les différences ont été comparées avec le test-t de Student apparié au niveau p=0,05. Le RPI postérieur droit était toujours visible et le plus souvent concave en haut (94 %). Sa hauteur était de 8,7 ± 1,6 cm. Son niveau le plus bas se situait en regard de L1 ou L2 dans 92% des cas. Il se poursuivait en dedans avec le recessus azygo-oeosophagien dans 96% des cas. Le RPI postérieur gauche n'était pas visible en dehors dans 34 % des cas et en dedans dans 60 % des cas. Il était le plus souvent concave en haut (82 %). Sa hauteur était de 6,9 ± 1,5 cm. Son niveau le plus bas se situait à la hauteur de L1 ou L2. Il se continuait en dedans soit avec la ligne paravertébrale gauche soit la ligne paraaortique. Le RPI antérieur droit était visible dans 76 % des cas. Il était le plus souvent oblique en haut et en dedans (46 %) ou concave en haut (33 %) et fréquemment encoché (38 %). Le RPI antérieur gauche était visible dans 64 % des cas et il était plus souvent oblique en haut et en dedans (58 %). Il se poursuivait en dedans avec le recessus précardiaque inférieur gauche. En conclusion, le RPI antérieurs sont plus variables que les postérieurs. Les RPI postérieurs sont très voisins dans leur forme, leur niveau inférieur et ils ne diffèrent dans leur profondeur que par la différence de hauteur des coupoles diaphragmatiques.
    Notes: Summary The aim of this work was to describe the radiologic anatomy of the inferior lung margins (ILMs). The method was to enhance the low frequencies of 50 normal chest computed radiographs. On each side, the anterior and posterior ILMs were divided into two halves. The frequency of visibility of each half of each ILM was calculated as their shape, lateral and medial continuities, depth, and vertebral level. The differences were compared by a paired Studentt-test. The right posterior ILM was always visible and usually concave upward (94%). Its height was 8.7 ± 1.6 cm. Its most inferior part faced L1 or L2 in 92% of cases. It was continuous medially inside with the azygo-esophageal recess in 96% of cases. The left posterior ILM was not visible laterally in 34% of cases and medially in 60% of cases. It was most often concave upward (82% of cases). Its height was 6.9 ± 1.5 cm. Its most inferior part was at the level of L1 or L2. It was continuous medially with either the left paraspinal line or the paraaortic line. The right anterior ILM was visible in 76% of cases. It was most often oblique upward and medially (46%) or concave upward (33%) and often notched (38%). The left anterior ILM was visible in 64% of cases and more often oblique inward and upward (58%). It was continuous medially with the left inferior precardiac recess. The anterior ILMs were more variable than the posterior. The posterior ILMs were very similar in shape and inferior level and differed in depth only by the difference of height of the diaphragmatic cupolas.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1084
    Keywords: Haemochromatosis ; Hypogonadism ; Liver, MRI ; Pituitary, MRI ; Testis, MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Haemochromatosis is a disease characterised by iron deposition in the liver and other organs. Hypogonadism is a commonly associated condition and may be either primary due to testicular lesions or secondary due to pituitary dysfunction. Hypogonadism secondary to pituitary dysfunction is more frequent and is thought to be related to iron deposition in the anterior pituitary. Increased iron content decreases signal intensity of spin-echo MRI images because T2 values are significantly shortened. Our purpose in this study was to evaluate by MRI iron deposition in the liver, testis and pituitary of 6 patients with haemochromatosis and severe hypogonadotrophic hypogonadism. Six subjects sereved as controls. There was a significant T2 shortening of the liver and pituitary i in patients with haemochromatosis compared with control patients. Therefore MRI detected iron overload in the pituitary and no iron in the testis, supporting the hypothesis of hypogonadotrophic pituitary insufficiency due to cellular damage induced by iron overload in the anterior pituitary gland.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1084
    Keywords: AIDS ; Rhodococcus equi ; Mediastinal lymphadenopathy ; CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Rhodococcus equi (R. equi) infections have been incidentally reported as a cause of pulmonary infection in severely immunocompromised hosts, including AIDS patients. Our purpose is to describe the radiological findings in nine AIDS patients with R. equi pneumonia assessed by bronchoalveolar lavage (BAL), biopsies, cultures of sputum, and hemocultures. All patients were examined by chest radiographs and contrast-medium-enhanced chest CT. Dense pulmonary consolidations with or without cavitations accounted for the most striking radiological patterns. Chest CT also revealed six mediastinal involvements, strongly mimicking a lymphoma. Two of them had multiple bilateral pulmonary nodular opacities. Pleural effusion was not identified. Although intensive therapies were administered, seven among nine patients died within few months. In an AIDS patient living in a rural area or exposed to horses and presenting these radiological patterns, the possibility of R. equi pneumonia should be considered in the differential diagnosis along with other infectious diseases or lymphomas.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1084
    Keywords: Arthroscopy ; Thrombophlebitis ; Arteries ; Color Doppler sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Arthroscopic knee surgery is a widely performed and relatively safe technique with few complications. We report a case of a young girl with a previously undescribed complication of arthroscopy consisting of the association of deep venous thrombosis and concomitant pseudoaneurysm of the popliteal artery.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1084
    Keywords: Haemochromatosis ; Hypogonadism ; Liver, MRI ; Pituitary, MRI ; Testis, MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Haemochromatosis is a disease characterised by iron deposition in the liver and other organs. Hypogonadism is a commonly associated condition and may be either primary due to testicular lesions or secondary due to pituitary dysfunction. Hypogonadism secondary to pituitary dysfunction is more frequent and is thought to be related to iron deposition in the anterior pituitary. Increased iron content decreases signal intensity of spin-echo MRI images because T2 values are significantly shortened. Our purpose in this study was to evaluate by MRI iron deposition in the liver, testis and pituitary of 6 patients with haemochromatosis and severe hypogonadotrophic hypogonadism. Six subjects sereved as controls. There was a significant T2 shortening of the liver and pituitary i in patients with haemochromatosis compared with control patients. Therefore MRI detected iron overload in the pituitary and no iron in the testis, supporting the hypothesis of hypogonadotrophic pituitary insufficiency due to cellular damage induced by iron overload in the anterior pituitary gland.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 6 (1996), S. 451-453 
    ISSN: 1432-1084
    Keywords: Varices ; Portal hypertension ; Computed tomography ; Mediastinal mass ; Color Doppler sonogram ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of variceal changes of the azygos vein, hemiazygos vein, and paraesophageal collaterals presenting as bilateral posterior mediastinal masses in a patient with long-standing portal hypertension due to hepatosplenic schistosomiasis. The case is unusual because the varices were considerably larger than those usually encountered in portal hypertension. Dynamic CT allowed the diagnosis in demonstrating the vascular nature of these masses, which enhanced to the same degree as the other vessels. Noninvasive techniques, such as color Doppler sonography and MRI, may also be useful due to their multiplanar capabilities.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 9 (1999), S. 1366-1375 
    ISSN: 1432-1084
    Keywords: Key words: Myelofibrosis ; Plain film ; Ultrasound ; CT ; MR imaging ; Extramedullary hematopoiesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The purpose of this review is to illustrate the wide range of radiological abnormalities in myelofibrosis. Myelofibrosis, also called myeloid metaplasia, is a myeloproliferative disorder of unknown etiology. The common imaging findings in patients with myelofibrosis are osteosclerosis, hepatosplenomegaly, and lymphadenopathies. In addition, extramedullary hematopoiesis may develop in multiple sites such as chest, abdomen, pelvis, and central nervous system, simulating malignant disease. Selected plain-film, CT, and MR images in patients with myelofibrosis are shown as pictorial essay to allow ready recognition of the most common imaging abnormalities of the disease.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1084
    Keywords: Gadolinium ; Gastrointestinal tract ; MRI ; MRI contrast enhancement ; Paramagnetic contrast agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To evaluate the safety and efficacy of a gadoterate meglumine formulation as an oral contrast agent, MRI (0.5 T) was performed on 29 patients with abdominal disease before and after administration of contrast material. The patients ingested 16 ml/kg of a gadoterate meglumine solution (10 g/l glucose, 2 mmol/l gadoterate meglumine) over 1 h. Fourteen per cent of patients had mild side effects related to the contrast agent. Significant hyperintense contrast enhancement was achieved for the stomach and duodenum allowing better delineation of gastric and duodenal walls, entire pancreas and spleen on T1- and T2-weighted spin echo sequences. In 5 patients more diagnostic information was available from post-contrast images compared with precontrast images. This study shows that gadoterate meglumine is a safe and well-tolerated contrast agent that improves MRI of the proximal gastrointestinal tract and upper abdomen.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Breast hemangioma in female infants is a rare benign lesion, prone to spontaneous regression. But when the lesion regresses there is a risk of breast atrophy if the breast bud is included in or very close to the hemangioma. A trial of corticosteroid therapy could be proposed to prevent this risk, but one must be sure that the breast bud is included in or very close to the hemangioma before treatment. We studied 4 children with breast hemangioma to evaluate the ability of MR Imaging in the diagnosis of breast bud inclusion. 0.5 Tesla axial Spin Echo T2-weighted images (TR=2000 ms; TE=120 ms) clearly depicted interface between high signal appearance of hemangioma and hypo-intensity of the breast bud: in our four patients we were able to determine whether or not the hemangioma involved the breast bud. Our preliminary study seems to demonstrate that MR imaging is a valuable imaging technique to determine which patients could be eligible for a trial of corticosteroid therapy.
    Type of Medium: Electronic Resource
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