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  • 1
    Electronic Resource
    Electronic Resource
    Primary hydatid disease of the pancreas (1987)
    Springer
    Abdominal imaging 12 (1987), S. 37-38 
    Details
    ISSN: 1432-0509
    Keywords: Hydatid disease ; Pancreas, computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of primary hydatid disease of the pancreas is presented in a patient operated on for an adrenal mass. Computed tomographic findings, such as rounded cystic lesion with curvilinear calcification, may allow the diagnosis to be made in the appropriate clinical setting. The diagnosis was confirmed at surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01885099
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  • 2
    Electronic Resource
    Electronic Resource
    MRI of abdominal hydatid disease (1994)
    Springer
    Abdominal imaging 19 (1994), S. 489-494 
    Details
    ISSN: 1432-0509
    Keywords: Hydatid disease, hydatid cysts ; Hydatidosis ; Hydatid disease, MRI, US, CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Seventy hydatid cysts in 30 patients were studied with magnetic resonance imaging (MRI) and computed tomography (CT); all cases were confirmed surgically. MRI detected all cysts when confined to solid organs, whereas small-sized cysts (≤2 cm) may be missed when located in the peritoneal cavity. Hydatid cysts of less than 3 cm (noncomplicated) present no specific findings of hydatid disease. MRI findings suggesting hydatid disease demonstrate a relatively thick hydatid cyst wall, daughter cysts, and germinal membrane detachment. T2-weighted images proved to be superior to T1 or PD-weighted images in demonstrating hydatid cyst wall thickness, germinal membrane detachment, and daughter cysts. In all spin-echo sequences, the maternal cystic content presented much higher signal intensities than that of daughter cysts. This difference in signal intensity is more obvious in T2 weighted images, except in complicated, infected cases. CT proved to be superior to MRI in demonstrating wall calcifications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00198247
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative study between ultrasound, computed tomography, intra-arterial digital subtraction angiography, and magnetic resonance imaging in the differentiation of tumors of the liver (1990)
    Springer
    Abdominal imaging 15 (1990), S. 102-106 
    Details
    ISSN: 1432-0509
    Keywords: Liver tumors ; Ultrasound ; Magnetic resonance imaging ; Angiography ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Forty-one patients with liver tumor have been evaluated with ultrasound (US), computed tomography (CT), intra-arterial digital subtraction angiography (IA-DSA), and magnetic resonance imaging (MRI) in order to establish the accuracy of each technique. In group A (24 patients), in which all four imaging modalities were performed, our results show that MRI detected all hemangiomas (25/25) compared to 22/25, 21/25, and 20/25 with US, CT, and IA-DSA, respectively. No difference between the various methods was seen in the case of hepatoma. Finally, in the patients with metastases, all four techniques had the same sensitivity (100%) but the specificity of MRI was also 100%, compared to 33% for IA-DSA and 66% for US and CT.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01888749
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Extracapsular (satellite) hydatid cysts (1992)
    Springer
    Abdominal imaging 17 (1992), S. 353-356 
    Details
    ISSN: 1432-0509
    Keywords: Liver, hydatid cysts ; Hydatid cysts, extracapsular echinococcal cysts ; Hydatid cysts, endogenous daughter cysts ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Sixteen percent of hydatid cysts in the liver in 185 patients examined by computed tomography (CT) showed daughter cysts located exterior to the fibrinous membrane of the main hydatid cysts. We call these extracapsular or satellite cysts. Extracapsular cysts have the same appearance as endogenous daughter cysts. Preoperative demonstration of these cysts is useful for planning an appropriate surgical treatment and reduction of the recurrence rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01888586
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  • 5
    Electronic Resource
    Electronic Resource
    Gd-DTPA as an intestinal contrast agent for MR imaging of the lower abdomen: Phase III clinical trial (1992)
    Springer
    Abdominal imaging 17 (1992), S. 300-304 
    Details
    ISSN: 1432-0509
    Keywords: MR imaging ; Gd-DTPA ; MR contrast media ; Paramagnetic contrast media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Thirty-one patients were investigated with magnetic resonance (MR) imaging of the lower abdomen before and after the administration of gadopentetate dimeglumine (Gd-DTPA) solution per os or per rectum or from both routes for the opacification of the intestinal tract. The parameters evaluated were: (a) contrast medium distribution, (b) degree of filling of the bowel lumen, (c) contrast between the bowel lumen and the surrounding normal or pathological structures, and (d) whether the administration of the contrast agent improved the diagnostic ability of MR compared to computed tomography (CT) or plain MR of the same region. Gd-DTPA, at a concentration of 1 mmol/L, produced a positive signal irrespective of its dilution in the bowel and good contrast between the bowel lumen and the adjacent tissues or any possible pathological lesions. From the diagnostic point of view, after the administration of contrast medium, MR is comparable to CT and much superior to plain MR. It is concluded that opacification of the bowel with Gd-DTPA solution will improve the diagnostic yield of MR imaging of the lower abdomen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01888574
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Gd-DTPA: a bowel contrast agent for magnetic resonance imaging of the abdomen (1992)
    Springer
    European radiology 2 (1992), S. 282-286 
    Details
    ISSN: 1432-1084
    Keywords: Magnetic resonance ; Cotrast media ; Gastrointestinal tract ; Paramagnetic materials ; Gd-DTPA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Forty patients with suspected pathology in the abdomen and pelvis have been investigated with MRI before and after administration of Gd-DTPA as an oral or rectal resolution. The findings are analysed with respect to (a) filling of the GI tract; (b) contrast in the region of interest, surrounding fat and vessels; (c) diagnostic yield in comparison to non-enhanced MRI and contrast CT. At a concentration of 1 mmol/l Gd-DTPA provided consistent positive contrast in the stomach achieved complete filling of the GI tract. The opacification in the region of interest was good or satisfactory in 90% of cases. The diagnostic value of contrast MRI was better in 93% of cases than the non-enhanced MRI of the abdomen. In comparison with contrast CT, the contrast MRI was better or of the same value in 92% of cases. Despite the disadvantages of poor fat-to-bowel contrast (35% of cases were classified as poor), it is concluded that Gd-DTPA-enhanced MRI provides good delineation of organs adjacent to the bowels so this contrast agent has potential for a future role in abdominal MRI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00175427
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  • 7
    Electronic Resource
    Electronic Resource
    Quiz case of the month (1999)
    Springer
    European radiology 9 (1999), S. 755-756 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050753
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  • 8
    Electronic Resource
    Electronic Resource
    Abdominal retained surgical sponges: CT appearance (1999)
    Springer
    European radiology 9 (1999), S. 1407-1410 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Abdomen ; Foreign bodies ; Retained sponges ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Retention of surgical sponges is rare. They cause either an aseptic reaction without significant symptoms or an exudative reaction which results in early but nonspecific symptoms. Computed tomography is very useful for recognition of retained sponges. The appearance of retained sponges is widely variable. Air trapping into a surgical sponge results in the spongiform pattern which is characteristic but unfortunately uncommon. A low-density, high-density, or complex mass is found in the majority of cases, but these patterns are not specific. Sometimes, a thin high-density capsule may be seen. Rim or internal calcification is a rare finding. Finally, a radiopaque marker is not a reliable sign. Differentiation from abscess and hematoma is sometimes difficult.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050858
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  • 9
    Electronic Resource
    Electronic Resource
    Graft-dependent recurrence of hyperparathyroidism: imaging with frequency amplitude and encoded Doppler sonography (2000)
    Springer
    European radiology 10 (2000), S. 1493-1494 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Hyperparathyroidism – Autotransplantation – Ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A 48-year-old woman underwent total parathyroidectomy with autotransplantation into the left forearm due to secondary hyperparathyroidism. Recurrence of hyperparathyroidism was observed 5 years later. B-mode high-resolution ultrasonography of the left forearm demonstrated an ill-defined hypoechoic lesion. Frequency- and amplitude-encoded Doppler sonography revealed marked hypervascularity, which was diagnostic for graft hyperplasia in association with the history of the patient. These findings were confirmed by scintigraphy and histological examination of the excised graft.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300000366
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  • 10
    Electronic Resource
    Electronic Resource
    MRI of pituitary adenomas following treatment (1993)
    Springer
    European radiology 3 (1993), S. 403-407 
    Details
    ISSN: 1432-1084
    Keywords: Pituitary CT ; Pituitary MR ; Pituitary neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this study was to assess pituitary adenomas following surgical and/or medical treatment in 28 patients. All patients were evaluated with both computed tomography (CT) and magnetic resonance imaging (MRI). The results were correlated with the clinical findings. Apart from the visualization of the adenoma itself (either residual or recurrent) other findings and in particular, morphological changes of the optic chiasm, the pituitary stalk and the sellar floor were evaluated with both imaging modalities. By comparing the two imaging modalities it was found that MRI was superior to CT in demonstrating residual/recurrent adenoma as well as evaluating the morphological changes of the optic chiasm and optic nerves. CT was superior or equal to MR in demonstrating the sellar floor changes. The intra-operatively implanted fat was equally seen by CT and MR. In conclusion, the anatomical variations of the optic chiasm and pituitary stalk are better visualized by MRI and allow a more precise evaluation of changes attributed to surgical or medical treatment of pituitary adenomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221415
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