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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 93 (1986), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. Twenty-five women with primary carcinoma of the cervix were examined with magnetic resonance imaging (MRI). A number of different pulse sequences with T1 and T2 weighting were employed to determine optimum tissue contrast, and the potential for staging cervical cancer was assessed and compared with the clinical findings. MRI is seen to give a unique view of cervical cancer in particular in stage I and II disease where other imaging techniques have known limitations. In addition, stages III and IV were well seen with demonstration of tumour comparable with that of computerized axial tomography (CT).
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 12 (1997), S. 276-279 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé. La fistule anale est une pathologie commune qui nécessite un diagnostic précis du trajet fistuleux car tout inadéquation de l'évaluation et du traitement chirurgical peut conduire à des interventions multiples inutiles et peut rendre un patient incontinent. Plusieurs études ont suggéré que la résonance magnétique (MRI) permet d'identifier avec précision un trajet fistuleux en relation avec le complexe sphinctérien. Le but de cette étude est d'investiguer l'utilité d'une MRI de routine pré-opératoire, examen totalement non invasif chez des patients suspects d'être atteints d'une fistule anale. Chaque scanner a étéévaluéà deux occasions par un consultant radiologue afin de déterminer si l'opinion du radiologue a été modifiée et/ou si elle devient plus précise par l'expérience acquise. L'évaluation chirurgicale a été réalisée sous anesthésie générale par un chirurgien sans qu'il ne connaisse le résultat de la MRI. Les résultats de l'évaluation chirurgicale et du scanner MRI ont été comparés et l'intervention chirurgicale complétée. Trente-trois patients avec un diagnostic clinique de fistule anale ont été traités et dans 27 cas la fistule anale a été confirmée par la suite. La MRI met en évidence le tractus fistuleux dans 42% des cas de manière correcte à l'évaluation initiale et dans 50% des cas à la fin de l'étude, l'ouverture interne dans 63 et 74% des cas, l'ouverture externe dans 33 et 46% des cas et les abcès dans 50 et 33% des cas. Ces données suggèrent l'existence d'une courbe d'apprentissage pour le radiologue qui investigue des fistules anales à l'aide de la MRI, ceci est probablement dû au fait que la pathologie des fistules anales et l'anatomie du complexe sphinctérien sont des données relativement nouvelles pour les radiologues. L'examen de routine à l'aide de la MRI de patients porteurs de fistule anale n'est pas nécessaire mais peut jouer un rôle pour l'évaluation de fistules complexes ou difficiles.
    Notes: Abstract. Fistula-in-ano is a common condition in which accurate diagnosis of the fistula track is essential as inadequate assessment and surgical treatment may lead to multiple unnecessary operations and may also render the patient incontinent. Several studies have suggested that Magnetic Resonance Imaging (MRI) can accurately identify the fistula track in relation to the sphincter complex. The aim of this study was to investigate the value of the routine use of completely non-invasive pre-operative MRI in patients with suspected fistula-in-ano. Each scan was reported by a consultant radiologist on two occasions to determine whether the radiologist's opinion had changed and/or become more accurate with further experience. Surgical assessment of the fistula was performed under general anaesthesia by one surgeon without knowledge of the result of the MRI scan. The results of the surgical assessment and the MRI scan were compared and the surgical procedure completed. Thirty three patients with a clinical diagnosis of fistula-in-ano were treated and 27 subsequently confirmed to have a fistula. MRI detected 42% of tracks, identified correctly on initial assessment which increased to 50% at the end of the study, 63% and 74% of internal openings, 33% and 46% of external openings and 50% and 33% of abscesses. These data suggest that there is a learning curve for radiologists undertaking MRI scanning for fistula in ano, this is probably because the pathology of fistula in ano and anatomy of the anal sphincter complex are relatively new to radiologists. Routine MRI scanning of patients with fistula-in-ano is not necessary but there may be a role for MRI in assessing complex or difficult fistulae.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1619-7089
    Keywords: Magnetic resonance imaging ; Immunoscintigraphy ; Ovarian carcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Eighteen patients with suspected primary or recurrent ovarian carcinoma have been investigated in each case by the assay of serum levels of the antigen CA125, immunoscintigraphy using131I-OC125 antibody and magnetic resonance imaging using a 0.15 Tesla-system. The final diagnosis was confirmed by laparotomy or laparoscopy. Serum levels of CA125 ranged between 5 and 780 units/ml (normal range 〈 35). Antibody images and MRI were truly positive in 11 patients, 2 of whom were subsequently found to have bowel tumours. MRI showed greater detail of smaller lesions whilst immunoscintigraphy was more suited to the detection of distant metastases. In 7 patients the antibody images were positive whilst the serum marker levels were normal. This pilot study provides a preliminary comparison of the more recent techniques currently being evaluated for the detection of ovarian carcinoma.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 7 (1982), S. 451-454 
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Before undertaking a femoro-popliteal bypass graft it is important to know whether the popliteal artery is patent to receive the distal end of the graft. Patency was assessed in 48 studies of 46 patients with peripheral vascular disease by radio-nuclide angiography. The procedure consists of imaging the popliteal arteries using a gamma camera after a bolus injection of 99mTc-sodium pertechnetate. The radio-nuclide angiograms were compared with the operative X-ray popliteal angiograms. Reliable information was obtained from the radio-nuclide images regarding the patency of the popliteal artery provided a femoral pulse was present. Quantitative data generated from the activity time curves were of no value in assessment of the patency of the popliteal arteries.
    Type of Medium: Electronic Resource
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