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  • 1
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    Prediction of Subacute Infarct Size in Acute Middle Cerebral Artery Stroke: Comparison of Perfusion-weighted Imaging and Apparent Diffusion Coefficient Maps [Neuroradiology] (2012)
    The Radiological Society of North America (RSNA)
    In: Radiology
    Details
    Publication Date: 2012-10-24
    Description: Purpose: To compare perfusion-weighted (PW) imaging and apparent diffusion coefficient (ADC) maps in prediction of infarct size and growth in patients with acute middle cerebral artery infarct. Materials and Methods: This study was approved by the local institutional review board. Written informed consent was obtained from all 80 patients. Subsequent infarct volume and growth on follow-up magnetic resonance (MR) images obtained within 6 days were compared with the predictions based on PW images by using a time-to-peak threshold greater than 4 seconds and ADC maps obtained less than 12 hours after middle cerebral artery infarct. ADC- and PW imaging–predicted infarct growth areas and infarct volumes were correlated with subsequent infarct growth and follow-up diffusion-weighted (DW) imaging volumes. The impact of MR imaging time delay on the correlation coefficient between the predicted and subsequent infarct volumes and individual predictions of infarct growth by using receiver operating characteristic curves were assessed. Results: The infarct volume measurements were highly reproducible (concordance correlation coefficient [CCC] of 0.965 and 95% confidence interval [CI]: 0.949, 0.976 for acute DW imaging; CCC of 0.995 and 95% CI: 0.993, 0.997 for subacute DW imaging). The subsequent infarct volume correlated ( P 〈 .0001) with ADC- ( = 0.853) and PW imaging- ( = 0.669) predicted volumes. The correlation was higher for ADC-predicted volume than for PW imaging-predicted volume ( P 〈 .005), but not when the analysis was restricted to patients without recanalization ( P = .07). The infarct growth correlated ( P 〈 .0001) with PW imaging-DW imaging mismatch ( = 0.470) and ADC-DW imaging mismatch ( = 0.438), without significant differences between both methods ( P = .71). The correlations were similar among time delays with ADC-predicted volumes but decreased with PW imaging-based volumes beyond the therapeutic window. Accuracies of ADC- and PW imaging–based predictions of infarct growth in an individual prediction were similar (area under the receiver operating characteristic curve [AUC] of 0.698 and 95% CI: 0.585, 0.796 vs AUC of 0.749 and 95% CI: 0.640, 0.839; P = .48). Conclusion: The ADC-based method was as accurate as the PW imaging–based method for evaluating infarct growth and size in the subacute phase. © RSNA, 2012 Supplemental material: http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.12112430/-/DC1
    Keywords: Neuroradiology
    Print ISSN: 0033-8419
    Electronic ISSN: 1527-1315
    Topics: Medicine
    Published by The Radiological Society of North America (RSNA)
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  • 2
    Electronic Resource
    Electronic Resource
    Vascularisation du rachis dorsal et lombaire (1982)
    Springer
    Surgical and radiologic anatomy 4 (1982), S. 8-10 
    Details
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion Si les rameaux assurant la vascularisation sont souvent trop grêles pour être individualisés à l'état normal, il nous a semblé utile de préciser les différents pédicules nourriciers du rachis, leurs anastomoses et leurs connexions avec les artères spinales, car leur connaissance nous semble importante et justifiée par les possibilités récentes de traitement endovasculaire des lésions vertébrales hypervascularisées.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01811198
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Blood supply to the thoracic (dorsal) and lumbar spine (1982)
    Springer
    Surgical and radiologic anatomy 4 (1982), S. 23-31 
    Details
    ISSN: 1279-8517
    Keywords: Normal angiography ; Intercostal and lumbar arteries ; Vertebral column ; Blood supply ; Radio anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé En se basant sur des corrélations anatomiques et angiographiques, les auteurs décrivent l'aspect angiographique de la vascularisation du rachis dorsal et lombaire et les moyens de repérage des différentes branches assurant la vascularisation des axes antérieur et postérieur sur les artériographies sélectives des artères intercostales et lombaires.
    Notes: Summary Basing their study on comparisons between anatomical and angiographical observations, the authors describe the angiographic appearances of the blood supply to the thoracic and lumbar vertebral column. They point out the means of identification of the different branches assuring the blood supply of the anterior and posterior axes on selective angiograms of the intercostal and lumbar arteries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01811186
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    High-intensity lesion on T1-weighted MR images in neurofibromatosis type 1: a case of premalignant lesion (1997)
    Springer
    Acta neurochirurgica 139 (1997), S. 1085-1087 
    Details
    ISSN: 0942-0940
    Keywords: Neurofibromatosis type 1 ; brain ; glioblastoma ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report a patient with NF1, who was followed up because of an optic glioma and one enhancing lesion presumed to be a pilocytic astrocytoma. T1- and T2-weighted MR images showed also a hyperintense periventricular lesion with no enhancement and no mass effect, of an unsuspected nature. Three years later a glioblastoma multiforme developed at the site of this preceding lesion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411565
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Arteriovenous fistulae complicating central venous catheterization: Value of endovascular treatment based on a series of seven cases (1995)
    Springer
    Intensive care medicine 21 (1995), S. 1043-1047 
    Details
    ISSN: 1432-1238
    Keywords: Complication ; Central venous catheterization ; Arteriovenous fistulae ; Endovascular treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objectives To point out the usefulness and effication of endovascular treatment of arteriovenous fistulae complicating the insertion of central venous catheter. Material and method Retrospective study of 7 cases treated between 1983 and 1993. The central venous catheterization had involved the right internal jugular vein in 5 cases and the right subclavian vein in 2 cases. Results Isolated endovascular therapy was performed in 5 cases. Surgery was necessary in 1 case to remove an hematoma. In another case, occlusion of a large AVF was performed during intraoperative endovascular temporary occulusion of the AVF. The choice of the occluding agent was primarily dictated by the hemodynamic and anatomical conditions (releasable balloons, coils). Vertebro-vertebral fistulae (3 cases) could be treated with patency of this vessel. No complications were encountered. Conclusion Endovascular approach is a reliable and safe method to perform occlusion of post catheter AVF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01700671
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Posttraumatic spinal subarachnoid cyst (1996)
    Springer
    European radiology 6 (1996), S. 523-525 
    Details
    ISSN: 1432-1084
    Keywords: Myelographic CT ; MRI ; Spinal injury ; Subarachnoid cyst ; Spinal cord compression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of posttraumatic compressive subarachnoid cyst of the thoracic spine studied by MR, myelography, and myelo-CT is reported. This cyst was surgically confirmed and treated by shunting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00182487
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    CT scan of dural arteriovenous fistulas (1982)
    Springer
    Neuroradiology 23 (1982), S. 185-194 
    Details
    ISSN: 1432-1920
    Keywords: Arteriovenous malformation ; Computed tomography ; Brain ; Dura mater ; Hematoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary CT was performed on ten cases of dural intracranial arteriovenous fistulas. There were 3 fistulas of the transverse sinus draining directly into the homolateral jugular vein; 2 fistulas of the sinus with distal occlusion of the sinus and back flow into the cortical veins (one was on the transverse sinus, the other on the sagittal sinus); 2 fistulas of the middle fossa; 3 fistulas with direct venous drainage into the cortical veins, one of these forming a tumor process in the posterior fossa. Osseous abnormalities were seen in only one case. Cerebral CT abnormalities, such as patchy or vermicular enhancement, were seen in all the cases with fistulas draining into the cerebral veins. Cerebral CT was normal in cases of fistulas of the sinus without back flow into the cerebral veins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00342538
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    CT in cerebral thrombophlebitis (1985)
    Springer
    Neuroradiology 27 (1985), S. 145-154 
    Details
    ISSN: 1432-1920
    Keywords: CT ; cerebral angiography ; cerebral thrombophlebitis ; venous infarct ; ICH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors report their experience based upon 56 cases of CT in cerebral thrombophlebitis. Direct signs of occlusion of the veins are infrequent and interest lies in the abnormalities due to brain edema or venous infarct. It is fundamental to recognize these infarcts as their evolution is favorable under treatment. Angiography is necessary to confirm the diagnosis of thrombophlebitis which can be only suspected on CT findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343786
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  • 9
    Electronic Resource
    Electronic Resource
    Cerebral angiography in ischemic strokes (1985)
    Springer
    Neuroradiology 27 (1985), S. 521-538 
    Details
    ISSN: 1432-1920
    Keywords: Cerebral angiography ; Cerebral infarcts ; Cerebral ischaemia ; Transient monocular blindless ; Transient ischemic attacks ; Stroke ; Atherosclerosis ; Dolichomegavessels ; Aneurysms ; Dissecting aneurysms ; Arteritis ; Fibromuscular hyperplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Angiography remains a very important means of evaluation of ischemic strokes: it confirms the diagnosis showing the occluded artery. It eventually shows the anastomotic pathways for cerebral circulation and it often finds the causes of stroke, among which the most frequent are atherosclerosis (70%) and fibromuscular hyperplasia (10%). The safer way to perform angiography is the retrograde route. Indications for angiography must be discussed according to the type of stroke, its onset, and the arterial territory involved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00340848
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Isolated dorsospinal artery supplying anterior spinal artery (1987)
    Springer
    Neuroradiology 29 (1987), S. 213-213 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327555
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