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  • 1
    Electronic Resource
    Electronic Resource
    Radial Scars of the Breast: Contrast-enhanced Magnetic Resonance Mammography Appearance (2005)
    Oxford, UK : Blackwell Science Inc
    The @breast journal 11 (2005), S. 0 
    Details
    ISSN: 1524-4741
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract:  The purpose of this study was to evaluate the appearance of contrast-enhanced magnetic resonance mammography (CE-MRM) in patients with suspected radial scar on mammography. Thirty women with radial opacities or black star findings at mammography, preoperatively underwent CE-MRM. Examinations were performed with a 1.5 T magnet with a bilateral surface coil using a FS T2-weighted turbo spin echo (TSE) and three-dimensional (3D) dynamic T1-weighted fast low-angle shot (FLASH) sequences. Criteria for lesion evaluation included morphologic patterns and signal intensity curves. Mammography and CE-MRM findings were compared with pathologic findings. CE-MRM suggested the presence of radial scar in 18 of 30 cases and the presence of malignancy in 11 of 30 cases; 1 lesion was classified as borderline. At surgery 22 radial scars (including 4 with associated ductal carcinoma in situ) and 8 carcinomas were detected. CE-MRM provided a specificity of 89%, sensitivity of 83%, and accuracy of 87%. Differently from breast cancer, radial scars are nonenhancing at CE-MRM. Nevertheless, the possibility of nonenhancing carcinomatous foci existing within radial scars implies that surgical excision should be performed in all cases. 
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1075-122X.2005.21530.x
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  • 2
    Electronic Resource
    Electronic Resource
    X-ray mammography with synchrotron radiation : Proceedings of the 4th international conference on synchrotron radiation instrumentation (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 638-640 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: For the first time in the literature, radiographs of breast phantoms were obtained using several monochromatic synchrotron radiation x-ray beams of selected energy in the range from 14 to 26 keV. In addition, after optimization of the photon energy as a function of the phantom thickness, several mammographs were obtained on surgically removed human breast specimens containing cancer nodules. Comparison between radiographs using a conventional x-ray unit and those obtained of the same specimens utilizing synchrotron monochromatic beams clearly shows that higher contrast and better resolution can be achieved with synchrotron radiation. These results demonstrate the possibility of obtaining radiographs of excised human breast tissue containing a greater amount of radiological information using synchrotron radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142676
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  • 3
    Electronic Resource
    Electronic Resource
    Angiographic diagnosis of jugular venous system dilatation in children (1979)
    Springer
    Pediatric radiology 8 (1979), S. 247-250 
    Details
    ISSN: 1432-1998
    Keywords: Venous ectasia ; Jugular ; Arteriography ; Venography ; Neck mass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report five children with a soft mass in the neck due to congenital jugular venous ectasia. Three had fusiform dilatation of the internal jugular vein, which in one case was associated with dilatation of the ipselateral external jugular vein. Two children had aneurysmal dilatation of the superficial cervical communicating vein. The first four cases required angiographic studies for final diagnosis. Venography via the femoral vein was most valuable for visualization of the dilated segments of internal jugular veins but failed to show the vascular mass communicating with the superficial vein of the neck. These were best visualized by direct injection of the contrast medium into the vessel. In the fifth case a correct diagnosis was obtained with xeroradiography alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00974043
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  • 4
    Electronic Resource
    Electronic Resource
    Standardized magnetic resonance image intensity study in Schizophrenia
    Amsterdam : Elsevier
    Psychiatry Research 25 (1988), S. 223-231 
    Details
    ISSN: 0165-1781
    Keywords: Magnetic resonance imaging ; asymmetry ; image intensity ; schizophrenia
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-1781(88)90054-6
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  • 5
    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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  • 6
    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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  • 7
    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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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    Computed tomography of the small bowel in adult celiac disease: the jejunoileal fold pattern reversal (2000)
    Springer
    European radiology 10 (2000), S. 119-122 
    Details
    ISSN: 1432-1084
    Keywords: Key words: CT – Intestines – Celiac disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this retrospective study was to establish whether the distinctive intestinal fold pattern of celiac disease (CD), known by barium studies as jejunoileal fold pattern reversal (JFPR) may be recognized at CT. The number of intestinal folds per 2.5 cm, seen at CT, were counted in the jejunum and in the ileum of 22 adult patients with CD and compared with the folds of 30 consecutive subjects in whom an intestinal disease had been excluded. The results were submitted to statistical analysis by Student's t-test. In the control group the number of folds per 2.5 cm were 4.88 (SD ± 0.78) in the jejunum and 2.84 ( ± 0.62) in the ileum; in the CD group the number of folds were 2.42 ( ± 1.61) in the jejunum and 5.11 ( ± 1.24) in the ileum. There was a statistically significant difference in the number of jejunal and ileal folds between the CD patients and the control group (in both cases p 〈 0.001). The JFPR was seen in 15 patients with CD (68.2 %) but in none of the controls. Our study shows that JFPR is not a normal finding and can be demonstrated by CT in the majority of patients with CD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050016
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  • 10
    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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