Now showing 1 - 8 of 8
  • 2018Journal Article
    [["dc.bibliographiccitation.artnumber","20180051"],["dc.bibliographiccitation.journal","BJR|case reports"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Biggemann, Lorenz"],["dc.contributor.author","Kahl, Fritz"],["dc.contributor.author","Ahmed, Saheeb"],["dc.contributor.author","Markus, Duersch"],["dc.date.accessioned","2019-07-09T11:45:57Z"],["dc.date.available","2019-07-09T11:45:57Z"],["dc.date.issued","2018"],["dc.description.abstract","Splenic torsion is an uncommon condition becoming clinically apparent when the spleen twists or rotates around the organ’s vascular pedicle. In the case of a wandering spleen the organ is only attached to an elongated vascular pedicle while the peritoneal attachments are absent. However, splenic torsion could also occur in patients with abnormal laxity of the splenic peritoneal attachments. We report a case of a splenic torsion due to absence of splenic ligaments with pancreatic volvulus and partial involvement of descending colon in a 9-year-old boy."],["dc.identifier.doi","10.1259/bjrcr.20180051"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15356"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59347"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2055-7159"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","Splenic torsion with involvement of pancreas and descending colon in a 9-year-old boy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article
    [["dc.bibliographiccitation.firstpage","4691"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","European Radiology"],["dc.bibliographiccitation.lastpage","4698"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Voit, Dirk"],["dc.contributor.author","Uhlig, Annemarie"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Sprenger, Thilo"],["dc.contributor.author","Beham, Alexander Wilhelm"],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Frahm, Jens"],["dc.contributor.author","Lotz, Joachim"],["dc.contributor.author","Biggemann, Lorenz"],["dc.date.accessioned","2020-05-13T13:45:02Z"],["dc.date.available","2020-05-13T13:45:02Z"],["dc.date.issued","2019"],["dc.description.abstract","Purpose To assess the diagnostic potential of dynamic real-time MRI for fundoplication failure in patients with persistent or recurrent GERD-like (gastroesophageal reflux disease) complaints. Material and methods Twenty-two consecutive patients (male n = 11; female n = 11; median age 59 years) with recurrent or persistent GERD-like symptom after fundoplication were enrolled between 2015 and 2017. Median duration of GERD-like symptoms was 21 months. Real-time MRI (3 Tesla) was performed at 40 ms temporal resolution using undersampled radial fast low-angle shot acquisitions with nonlinear inverse image reconstruction. MRI movies dynamically visualized bolus transit of pineapple juice through the gastroesophageal junction, position of the fundoplication wrap and recurring hernia or reflux during Valsalva maneuver. MRI results were compared to endoscopic findings. Results Real-time MRI was successfully completed in all patients without adverse events (average examination time 15 min). Morphological correlates for GERD-like symptoms were evident in 20 patients (90.1%) with gastric reflux in 19 cases. Nine patients (40.1%) had wrap disruption and recurrent gastric hernia. Wrap migration or telescoping hernia was detected in nine patients (40.1%). One patient presented with continued reflux despite intact fundoplication wrap. Esophageal dysmotility with delayed bolus passage was observed in one case. On endoscopy, gastric hernia or wrap disruption was diagnosed in seven cases, and esophagitis or Barret’s metaplasia in nine cases."],["dc.identifier.doi","10.1007/s00330-019-06025-x"],["dc.identifier.pmid","30805702"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65369"],["dc.language.iso","en"],["dc.relation.eissn","1432-1084"],["dc.relation.issn","0938-7994"],["dc.title","Real-time MRI for the dynamic assessment of fundoplication failure in patients with gastroesophageal reflux disease"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2020-04Journal Article Research Paper
    [["dc.bibliographiccitation.artnumber","108856"],["dc.bibliographiccitation.journal","European Journal of Radiology"],["dc.bibliographiccitation.volume","125"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Gliem, Nina"],["dc.contributor.author","Wedi, Edris"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Ahmed, Saheeb"],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Frahm, Jens"],["dc.contributor.author","Lotz, Joachim"],["dc.contributor.author","Biggemann, Lorenz"],["dc.date.accessioned","2020-05-13T13:44:06Z"],["dc.date.available","2020-05-13T13:44:06Z"],["dc.date.issued","2020-04"],["dc.description.abstract","Purpose To evaluate the diagnostic potential of real-time MRI for dynamic assessment of gastroesophageal reflux in patients with GERD (gastroesophageal reflux disease)-like symptoms compared to pH-metry and impedance. Methods Patients who underwent real-time MRI and pH-metry between 2015–2018 were included in this retrospective study. Real-time MRI at 3 T was achieved by undersampled radial FLASH acquisitions with iterative image reconstruction by NLINV. Real-time MRI visualized transit of pineapple juice through the gastroesophageal junction and during Valsalva maneuver. MRI results were compared to 24 h pH-metry to assess acidic reflux (following Lyon Consensus guidelines) and to impedance to assess non-acidic reflux. A standard 2 × 2 table was chosen to calculate diagnostic performance. Results 91/93 eligible patients fulfilled inclusion criteria (male n = 49; female n = 42; median age 55 y). All MRI studies were successfully completed without adverse events at a mean examination time of 15 min. On real-time MRI, reflux was evident in 60 patients (66 %). pH-metry revealed reflux in 41 patients (45 %), and impedance in 54 patients (59 %). Compared to pH-metry and impedance, real-time MRI sensitivity was 0.78 (95 % CI: 0.66-0.87), specificity 0.67 (95 % CI: 0.45-0.84) and PPV 0.87 (95 % CI: 0.75-0.94). Conclusion Real-time MRI is an imaging method for assessment of gastroesophageal reflux in patients with GERD-like symptoms. Considering its high positive predictive value, real-time MRI can accurately identify patients in which further invasive testing with pH-metry and impedance might be considered."],["dc.identifier.doi","10.1016/j.ejrad.2020.108856"],["dc.identifier.pmid","32062571"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65362"],["dc.language.iso","en"],["dc.relation.eissn","1872-7727"],["dc.relation.issn","0720-048X"],["dc.title","Real-time MRI for dynamic assessment of gastroesophageal reflux disease: Comparison to pH-metry and impedance"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","728"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Clinical Imaging"],["dc.bibliographiccitation.lastpage","733"],["dc.bibliographiccitation.volume","37"],["dc.contributor.author","Sohns, Jan Martin"],["dc.contributor.author","Staab, Wieland"],["dc.contributor.author","Sohns, Christian"],["dc.contributor.author","Schwarz, Alexander"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Spiro, Judith Eva"],["dc.contributor.author","Kertesz, Andras"],["dc.contributor.author","Zwaka, Paul Anton"],["dc.contributor.author","Lotz, Joachim"],["dc.date.accessioned","2018-11-07T09:23:11Z"],["dc.date.available","2018-11-07T09:23:11Z"],["dc.date.issued","2013"],["dc.description.abstract","Purpose: The purpose of the study was to determine the prevalence of fractures and incidental findings (IF) with emphasis on clinical significance. Materials and methods: A total of 784 patients were evaluated by computed tomography. Fractures and IF were registered and classified as significant if they were recommended for additional diagnostics or therapy. Results: Four hundred seventy of 784 patients (60%) sustained a fracture. Significant fractures were found in 694/1213 fractures (57%); nonsignificant fractures were found in 519/1213 (43%) fractures. A total of 972 IF were observed in 464/784 (59%) patients. Significant findings were found in 358/972 findings (37%). There were 1.5 fractures and 1.2 IF per patient. Conclusion: There is a high prevalence of significant fractures (57%) and IF (37%). (c) 2013 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.clinimag.2012.11.002"],["dc.identifier.isi","000321029100019"],["dc.identifier.pmid","23312456"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29522"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0899-7071"],["dc.title","Current perspective of multidetector computed tomography (MDCT) in patients after midface and craniofacial trauma"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","14"],["dc.bibliographiccitation.journal","European Journal of Radiology"],["dc.bibliographiccitation.lastpage","19"],["dc.bibliographiccitation.volume","104"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Beham, Alexander Wilhelm"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Uhlig, Annemarie"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Joseph, Arun A."],["dc.contributor.author","Voit, Dirk"],["dc.contributor.author","Frahm, Jens"],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Lotz, Joachim"],["dc.contributor.author","Biggemann, Lorenz"],["dc.date.accessioned","2020-05-13T13:45:25Z"],["dc.date.available","2020-05-13T13:45:25Z"],["dc.date.issued","2018"],["dc.description.abstract","The purpose of this study was to assess the reproducibility of functional and anatomical parameters of swallowing events as determined by real-time MRI at 40 ms temporal resolution (25 frames per second). Twenty-three consecutive patients with gastroesophageal reflux disease (GERD) underwent real-time MRI of the gastroesophageal junction at 3.0 T. Real-time MRI was based on highly undersampled radial fast low angle shot (FLASH) acquisitions with iterative image reconstruction by regularized nonlinear inversion (NLINV). MRI movies visualized the esophageal transport of a pineapple juice bolus, its passage through the gastroesophageal junction and functional responses during a Valsalva maneuver. His-angle, sphincter position, sphincter length and sphincter transit time were assessed by two radiologists. Interobserver and intraobserver intraclass correlation coefficients (ICC) were evaluated and Bland-Altman plots were constructed to assess the observer agreement. Interobserver agreement was excellent for sphincter transit time (ICC = 0.92), His-angle (ICC = 0.93), His-angle during Valsalva maneuver (ICC = 0.91) and sphincter-to-diaphragm distance (ICC = 0.98). Sphincter length and oesophageal diameter showed good interobserver agreement (ICC = 0.62 and ICC = 0.70). Intraobserver agreement was good for sphincter length (ICC = 0.80) and excellent for sphincter transit time, His-angle and His-angle during Valsalva maneuver, sphincter-to-diaphragm distance, and esophageal diameter (ICC = 0.91; ICC = 0.97; ICC = 0.97; ICC = 0.998; ICC = 0.93). All functional parameters of the gastroesophageal junction had good to excellent reproducibility. Visual assessment of Bland Altman plots did not reveal any systematic interobserver bias. In conclusion, the visualization of swallowing events by real-time MRI has a high potential for clinical application in gastroesophageal reflux disease."],["dc.identifier.doi","10.1016/j.ejrad.2018.04.029"],["dc.identifier.pmid","29857860"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65371"],["dc.language.iso","en"],["dc.relation.eissn","1872-7727"],["dc.relation.issn","0720-048X"],["dc.title","Intra- and interobserver variability in the diagnosis of GERD by real-time MRI"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2019-12Journal Article
    [["dc.bibliographiccitation.firstpage","6653"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","European Radiology"],["dc.bibliographiccitation.lastpage","6661"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Uhlig, Annemarie"],["dc.contributor.author","Sprenger, Thilo"],["dc.contributor.author","Wedi, Edris"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Voit, Dirk"],["dc.contributor.author","Frahm, Jens"],["dc.contributor.author","Lotz, Joachim"],["dc.contributor.author","Biggemann, Lorenz"],["dc.date.accessioned","2020-05-13T13:44:49Z"],["dc.date.available","2020-05-13T13:44:49Z"],["dc.date.issued","2019-12"],["dc.description.abstract","Purpose To assess the diagnostic potential of real-time MRI for assessment of hiatal hernias in patients with GERD-like symptoms compared to endoscopy. Material and methods One hundred eight patients with GERD-like symptoms were included in this observational cohort study between 2015 and 2017. Real-time MRI was performed at 3.0 Tesla with temporal resolution of 40 ms, dynamically visualizing the esophageal transport of a pineapple juice bolus, its passage through the gastroesophageal junction, and functional responses during Valsalva maneuver. Hernia detection on MRI and endoscopy was calculated using contingency tables with diagnosis of hernia on either modality as reference. Results Of 108 patients, 107 underwent successful MRI without adverse events; 1 examination was aborted to inability to swallow pineapple juice in supine position. No perforation or acute bleeding occurred during endoscopy. Median examination time was 15 min. Eighty-five patients (79.4%) were diagnosed with hiatal hernia on either real-time MRI or endoscopy. Forty-six hernias were visible on both modalities. Seventeen hernias were evident exclusively on MRI, and 22 exclusively on endoscopy. Sixteen of the 63 MRI-detected hernias (25.4%) were detectable only during Valsalva maneuver, which were smaller compared to hernias at rest (median − 13.5 vs − 33.0 mm, p < 0.001). Diagnostic accuracy for hernia detection was comparable for MRI and endoscopy (sensitivity 74% vs 80%, p = 0.4223; specificity 100% vs 100%, p > 0.99)."],["dc.identifier.doi","10.1007/s00330-019-06284-8"],["dc.identifier.pmid","31187219"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65367"],["dc.language.iso","en"],["dc.relation.eissn","1432-1084"],["dc.relation.issn","0938-7994"],["dc.title","Hiatal hernias in patients with GERD-like symptoms: evaluation of dynamic real-time MRI vs endoscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.firstpage","267"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Archives of Orthopaedic and Trauma Surgery"],["dc.bibliographiccitation.lastpage","272"],["dc.bibliographiccitation.volume","138"],["dc.contributor.author","Balcarek, Peter"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Streit, Ulrike"],["dc.contributor.author","Brodkorb, Tobias Franz"],["dc.contributor.author","Walde, Tim Alexander"],["dc.date.accessioned","2020-12-10T14:10:28Z"],["dc.date.available","2020-12-10T14:10:28Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1007/s00402-017-2838-0"],["dc.identifier.eissn","1434-3916"],["dc.identifier.issn","0936-8051"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70769"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Sagittal magnetic resonance imaging-scan orientation significantly influences accuracy of femoral posterior condylar offset measurement"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2020-11Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","109265"],["dc.bibliographiccitation.journal","European Journal of Radiology"],["dc.bibliographiccitation.volume","132"],["dc.contributor.author","Biggemann, Lorenz"],["dc.contributor.author","Uhlig, Johannes"],["dc.contributor.author","Gliem, Nina"],["dc.contributor.author","Al-Bourini, Omar"],["dc.contributor.author","Wedi, Edris"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Frahm, Jens"],["dc.contributor.author","Lotz, Joachim"],["dc.contributor.author","Hosseini, Ali Seif Amir"],["dc.contributor.author","Streit, Ulrike"],["dc.date.accessioned","2021-03-08T07:14:06Z"],["dc.date.available","2021-03-08T07:14:06Z"],["dc.date.issued","2020-11"],["dc.description.abstract","To investigate imaging findings of esophageal motility disorders on dynamic real-time."],["dc.identifier.doi","10.1016/j.ejrad.2020.109265"],["dc.identifier.pmid","33010683"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80478"],["dc.language.iso","en"],["dc.relation.eissn","1872-7727"],["dc.relation.issn","0720-048X"],["dc.title","Assessment of esophageal motility disorders by real-time MRI"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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