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  • 1
    Electronic Resource
    Electronic Resource
    Theoretical and Experimental Study of the Lattice-Dynamical Properties of Cubic GaN (1998)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 264-268 (Feb. 1998), p. 307-310 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/03/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.264-268.307.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Caroli's disease: evaluation with MR cholangiopancreatography (MRCP) (1996)
    Springer
    Abdominal imaging 21 (1996), S. 117-119 
    Details
    ISSN: 1432-0509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900026
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  • 3
    Electronic Resource
    Electronic Resource
    Restorative proctocolectomy: morphological and functional study with coronal CT (1996)
    Springer
    Abdominal imaging 21 (1996), S. 261-265 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Proctocolectomy, ileal pouch〈+〉—〈+〉Functional and morphologic study〈+〉—〈+〉Defecography, CT study.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Restorative proctocolectomy with ileal pouch has become the surgical treatment of choice for patients with ulcerative colitis (UC) and familial polyposis of the colon. Defecography is the radiological technique commonly employed to obtain detailed information on function and morphology of the ileal pouch; it allows the direct visualization of the ileal pouch and the anal canal, but it does not provide the visualization of the pelvis. Methods: In all patients, computed tomography (CT) on coronal planes was performed to determine its possibilities as an alternative to defecography; 10 patients with UC submitted to restorative proctocolectomy and were examined. Results: Coronal CT images provided a panoramic vision of the pelvis and demonstrated the morphology of the ileal pouch, the thickness of its walls, and its correlation with the surrounding tissues. Coronal CT also allowed the evaluation of the continence of ileo-anal and ileo-ileal anastomosis and the functional changes of the perineal muscles at rest and during squeezing. Conclusion: CT images acquired on coronal planes allows an easy and clear detection of the major postoperative complications, such as stenosis or dehiscences of the anastomosis, pelvic phlogosis, and fistulae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900060
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  • 4
    Electronic Resource
    Electronic Resource
    CT of Nissen's fundoplication (1997)
    Springer
    Abdominal imaging 22 (1997), S. 457 -460 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Nissen's fundoplication—CT—Hiatal hernia.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this work is to describe the computed tomographic (CT) anatomy in patients who underwent Nissen's fundoplication. Forty patients (mean age = 61 years) with peptic esophagitis (nine cases), refractory gastroesophageal reflux (11 cases), and hiatal hernia (20 cases) were studied. Examinations were performed by third-generation CT equipment, with patients in the prone position after the ingestion of gastrovison and barium paste. In 34 patients, the examination demonstrated anatomical variations related to surgery, that is, the presence of a soft tissue mass at the level of the distal third of the esophagus. In four patients, a functional incompetence of the fundoplication (three cases) and a recurrent hiatal hernia (one case) were demonstrated. Our results suggest a possible application for CT study in postoperative follow up of patients who undergo Nissen's fundoplication, complementary to endoscopy and functional exams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900236
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  • 5
    Electronic Resource
    Electronic Resource
    An integrated approach to senology education: combination of a hypermedia program with a multimedia archive (1996)
    Springer
    European radiology 6 (1996), S. 532-535 
    Details
    ISSN: 1432-1084
    Keywords: Computer-assisted instruction (CAI) ; Senology education ; Multimedia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this work was to demonstrate the computerized system on senology, which combines a hypermedia application to a multimedia didactical archive, integrated with a radiological information system. These applications have been developed on Macintosch computers using the softwares Supercard and 4th Dimension. The hypermedia application deals with basic principles of anatomy as well as the radiologic semeiology and pathology through different imaging techniques in order to illustrate basic principles. Thus, students can modify their learning pathways and the timing as they wish. Limitations are related to time consumption in preparing the programs and technical difficulties in expanding them. Multimedia archive allows to classify a large number of difficult and uncommon clinical cases, creating an easily updatable teaching file in digital format which considerably improves access to stored image data, also reducing loss of films and film degredation. From initial experiences we conclude that these systems are valid devices in information and up to date for physicians dedicated to the study of breast pathology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00182489
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  • 6
    Electronic Resource
    Electronic Resource
    MR cholangiography: techniques and clinical applications (1998)
    Springer
    European radiology 8 (1998), S. 901-910 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Bile ducts ; Biliary stones ; Biliary strictures ; Neoplasms ; Obstruction ; Pancreatic duct ; Pancreas ; Chronic pancreatitis ; MR imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Magnetic resonance cholangiography (MRCP) is a new non-invasive imaging technique for the evaluation of bilio-pancreatic disorders. Different sequences, using both breathhold and non-breathhold techniques, have been employed in order to obtain MRCP images. The authors discuss the technical aspects, particularly focusing their attention on a non-breathhold, three-dimensional, fat-suppressed turbo-spin-echo sequence, optimized on a 0.5-T magnet with 15 mT/m gradients. Clinical applications of MRCP are evaluated, presenting data from both the literature and personal experience. The main indication for MRCP study is represented by the evaluation of common bile duct obstruction, with the aim of assessing the presence of the obstruction (accuracy 85–100 %) and, subsequently, its level (accuracy 91–100 %) and its cause. The utility of associating conventional MR images to MRCP in malignant strictures in order to characterize and stage the malignant lesions is also discussed. Finally, data are presented regarding the indications and utility of MR pancreatography in the evaluation of patients with chronic pancreatitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050486
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  • 7
    Electronic Resource
    Electronic Resource
    MRI of the biliary and pancreatic ducts (1999)
    Springer
    European radiology 9 (1999), S. 1513-1522 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Bile ducts ; Biliary stones ; Biliary strictures ; Bile ducts ; Neoplasms ; Obstruction ; Pancreatic duct ; Pancreas ; Chronic pancreatitis ; MR imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Magnetic resonance Cholangiopancreatography (MRCP) is a non-invasive imaging technique able to provide projectional images of the bile ducts. Different sequences, using both breath-hold and non-breath-hold acquisition techniques, have been employed in order to obtain MRCP images. The authors discuss technical aspects, considering both three-dimensional non-breath-hold techniques and two-dimensional breath-hold, multi-slice and thick slab sequences. Clinical applications of MRCP are evaluated, presenting data from both the literature and personal experience. The main indication for MRCP study is represented by the evaluation of common bile duct obstruction, with the aim of assessing the presence of the obstruction (accuracy 85–100 %) and, subsequently, its level (accuracy 91–100 %) and its cause. The utility of associating conventional MR images to MRCP in malignant strictures, in order to characterize and stage the malignant lesion, is also discussed. Finally, data are presented regarding the indications and the utility of MR-pancreatography in the evaluation of patients with pancreatic duct anomalies and chronic pancreatitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050877
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    The Junior Radiologists Forum of the European Association of Radiology (1996)
    Springer
    European radiology 6 (1996), S. S1 
    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/BF00181165
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  • 9
    Electronic Resource
    Electronic Resource
    MR cholangiopancreatography (MRCP) at 0.5 T: technique optimisation and preliminary results (1996)
    Springer
    European radiology 6 (1996), S. 147-152 
    Details
    ISSN: 1432-1084
    Keywords: Bile ducts ; MR - Bile ducts ; neoplasms - Bile ducts ; stenosis or obstruction - Magnetic resonance ; rapid imaging - Pancreatic duct ; MR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of our study was to evaluate the feasibility of MR cholangiopancreatography (MRCP) at 0.5 T. To our knowledge no previous studies of MRCP have been performed at mid-field strength. Thirty-one patients with dilated biliary systems were examined with three-dimensional MRCP. All patients were studied with a 0.5 T superconducting magnet. A three-dimensional turbo spin-echo (TSE) sequence was acquired (TR = 3000 ms, TE = 700 ms, echo train length = 45; acquisition time = 14 min 10 s). Coronal images were post-processed with the MIP algorithm. Recently, the parameters have been optimised (TR = 3000 ms, TE = 700 ms, echo train length =128), reducing the acquisition time to 3 min. Endoscopic retrograde cholangiopancreatography (ERCP) was performed in 26 cases; 5 patients underwent percutaneous transhepatic cholangiography PTC. MRCP and ERCP images were evaluated by an experienced radiologist and an endoscopist. MRCP of diagnostic quality was acquired in all patients. Choledocholithiasis was correctly evaluated by MRCP in 12 of 12 patients, compared with 11 correct diagnoses by ERCP. The presence and the level of the stricture were accurately shown in 16 of 16 patients with MRCP and in 13 of 16 patients with ERCP. The peripheral biliary tree above the obstruction and pancreatic duct were better evaluated by MRCP in all cases. In 3 of 3 patients who had undergone bilio-enteric surgery, a correct evaluation of the site of the anastomosis was possible with MRCP. It is concluded that MRCP performed at mid-field strength allows good visualisation of the dilated biliary system. Excellent results have been obtained on comparison with ERCP. MRCP performed at mid-field strength could have the same clinical value as high field strength MRCP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00181131
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  • 10
    Electronic Resource
    Electronic Resource
    Pancreatic adenocarcinoma: combination of MR imaging, MR angiography and MR cholangiopancreatography for the diagnosis and assessment of resectability (1998)
    Springer
    European radiology 8 (1998), S. 428-434 
    Details
    ISSN: 1432-1084
    Keywords: Key words: MR imaging ; MR angiography ; MR cholangiopancreatography ; Pancreatic adenocarcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The purpose of this study was to determine the possibility of integrating MR cholangiopancreatography (MRCP) and MR angiography (MRA) to conventional MR images in the diagnosis and assessment of resectability of pancreatic adenocarcinoma. Twenty-three patients with pancreatic adenocarcinoma were prospectively examined with MR. Conventional MR images were acquired in all patients. Three-dimensional MRCP and MRA images were acquired in all patients with suspected biliary and vascular involvement. Acquisition time was less than 45 min in all cases. Images were independently evaluated by two radiologists, with final reading decided by consensus among readers. Diagnosis was confirmed with surgery in 16 patients and with percutaneous biopsy in 7. Concordance among readers was high with a kappa value of 0.83. Pancreatic adenocarcinoma was observed in all patients. Correct assessment of unresectability due to vascular involvement was found in 22 of 23 patients. Biliary obstruction was evident in 13 patients, involving the biliary and pancreatic ducts in 9 and the biliary ducts only in 4. Technical advances permit extensive use of MRI in the evaluation of abdominal pathologies. The combination of MR imaging, MRCP, and MRA can provide sufficient information for the diagnosis and assessment of resectability of pancreatic adenocarcinoma, which otherwise would require three different exams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050407
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