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  1. Book ; Online ; E-Book: Sonographic peripheral nerve topography

    Gruber, Hannes / Loizides, Alexander / Moriggl, Bernhard

    a landmark-based algorithm

    2019  

    Author's details Hannes Gruber, Alexander Loizides, Bernhard Moriggl editors
    Keywords Neurology ; Neurosurgery ; Anesthesiology ; Radiology, Medical ; Pain Medicine ; Orthopedics
    Language English
    Size 1 Online-Ressource (xiii, 228 Seiten), Illustrationen
    Publisher Springer
    Publishing place Cham
    Publishing country Switzerland
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT020077405
    ISBN 978-3-030-11033-8 ; 9783030110321 ; 3-030-11033-8 ; 303011032X
    DOI 10.1007/978-3-030-11033-8
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online ; E-Book: Nervensonographie kompakt

    Gruber, Hannes / Loizides, Alexander / Moriggl, Bernhard

    Anatomie der peripheren Nerven mit Landmarks

    2018  

    Author's details Hannes Gruber, Alexander Loizides, Bernhard Moriggl (Hrsg.)
    Keywords Medicine ; Anesthesiology ; Radiology ; Neurology ; Neurosurgery ; Orthopedics ; Pain medicine
    Subject code 616.8
    Language German
    Size 1 Online-Ressource (XI, 231 Seiten), Illustrationen
    Publisher Springer
    Publishing place Berlin
    Publishing country Germany
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT019745338
    ISBN 978-3-662-56754-8 ; 9783662567531 ; 3-662-56754-7 ; 3662567539
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Book: Atlas of peripheral nerve ultrasound

    Peer, Siegfried / Gruber, Hannes

    with anatomic and MRI correlation

    2013  

    Author's details Siegfried Peer ; Hannes Gruber ed
    Keywords Nerves, Peripheral--Ultrasonic imaging ; Peripheres Nervensystem ; Ultraschalldiagnostik
    Subject Sonographie ; Sonografie ; Ultrasonographie ; Ultrasonografie ; PNS
    Language English
    Size XI, 127 S. : zahlr. Ill.,
    Publisher Springer
    Publishing place Heidelberg u.a.
    Publishing country Germany
    Document type Book
    HBZ-ID HT017589593
    ISBN 978-3-642-25593-9 ; 9783642255946 ; 3-642-25593-0 ; 3642255949
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2013 A 173 available for loan (reading room) Lesesaal EG

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  4. Article ; Online: Evaluation of a Condition Monitoring Algorithm for Early Bearing Fault Detection.

    Gruber, Hannes / Fuchs, Anna / Bader, Michael

    Sensors (Basel, Switzerland)

    2024  Volume 24, Issue 7

    Abstract: Roller bearings are critical components in various mechanical systems, and the timely detection of potential failures is essential for preventing costly downtimes and avoiding substantial machinery breakdown. This research focuses on finding and ... ...

    Abstract Roller bearings are critical components in various mechanical systems, and the timely detection of potential failures is essential for preventing costly downtimes and avoiding substantial machinery breakdown. This research focuses on finding and verifying a robust method that can detect failures early, without creating false positive failure states. Therefore, this paper introduces a novel algorithm for the early detection of roller bearing failures, particularly tailored to high-precision bearings and automotive test bed systems. The featured method (AFI-Advanced Failure Indicator) utilizes the Fast Fourier Transform (FFT) of wideband accelerometers to calculate the spectral content of vibration signals emitted by roller bearings. By calculating the frequency bands and tracking the movement of these bands within the spectra, the method provides an indicator of the machinery's health, mainly focusing on the early stages of bearing failure. The calculated channel can be used as a trend indicator, enabling the method to identify subtle deviations associated with impending failures. The AFI algorithm incorporates a non-static limit through moving average calculations and volatility analysis methods to determine critical changes in the signal. This thresholding mechanism ensures the algorithm's responsiveness to variations in operating conditions and environmental factors, contributing to its robustness in diverse industrial settings. Further refinement was achieved through an outlier detection filter, which reduces false positives and enhances the algorithm's accuracy in identifying genuine deviations from the normal operational state. To benchmark the developed algorithm, it was compared with three industry-standard algorithms: VRMS calculations per ISO 10813-3, Mean Absolute Value of Extremums (MAVE), and Envelope Frequency Band (EFB). This comparative analysis aimed to evaluate the efficacy of the novel algorithm against the established methods in the field, providing valuable insights into its potential advantages and limitations. In summary, this paper presents an innovative algorithm for the early detection of roller bearing failures, leveraging FFT-based spectral analysis, trend monitoring, adaptive thresholding, and outlier detection. Its ability to confirm the first failure state underscores the algorithm's effectiveness.
    Language English
    Publishing date 2024-03-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s24072138
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Commentary on: Percutaneous Ultrasound-Guided Release of the Lacertus Fibrosus for Median Nerve Entrapment at the Elbow.

    Gruber, Hannes / Loizides, Alexander

    Cardiovascular and interventional radiology

    2022  Volume 45, Issue 8, Page(s) 1203–1204

    MeSH term(s) Carpal Tunnel Syndrome ; Elbow ; Elbow Joint/diagnostic imaging ; Humans ; Median Nerve ; Median Neuropathy ; Nerve Compression Syndromes ; Ultrasonography, Interventional
    Language English
    Publishing date 2022-05-18
    Publishing country United States
    Document type Editorial
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0342-7196 ; 0174-1551
    ISSN (online) 1432-086X
    ISSN 0342-7196 ; 0174-1551
    DOI 10.1007/s00270-022-03163-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1378: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  6. Article ; Online: Contrast-Enhanced Ultrasound after Endovascular Aortic Repair: Supplement and Potential Substitute for CT in Early- and Long-Term Follow-Up.

    Morell-Hofert, Dagmar / Gruber, Leonhard / Gruber, Hannes / Glodny, Bernhard / Gruber, Ingrid / Loizides, Alexander

    Annals of vascular surgery

    2024  Volume 102, Page(s) 9–16

    Abstract: Background: Endoleaks are the most common complication after endovascular aneurysm repair (EVAR). Computed tomography angiography (CTA) is presently the golden standard for lifelong surveillance after EVAR. Several studies and meta-analyses have shown ... ...

    Abstract Background: Endoleaks are the most common complication after endovascular aneurysm repair (EVAR). Computed tomography angiography (CTA) is presently the golden standard for lifelong surveillance after EVAR. Several studies and meta-analyses have shown contrast-enhanced ultrasound (CEUS) to be a good alternative. The main goal of our study was to further validate the inclusion of CEUS in follow-up examination protocols for the systematic surveillance after EVAR.
    Methods: A retrospective analysis of patients who had received CEUS as part of their routine surveillance after EVAR at our center was conducted. Detection rate and classification of endoleak types were compared between available postinterventional CTA/magnetic resonance angiography and follow-up CEUS examinations. Last preinterventional CTAs before EVAR served as baselines with focus on potential cofactors such as age, body mass index, maximum aortic aneurysm diameters, endoleak orientation, and distance-to-surface influencing detection rates and classification.
    Results: In total, 101 patients were included in the analysis. Forty-four endoleaks (43.5% of cases) were detected by either initial CEUS or CTA, mostly type II (37.6% of the included patients). Initial CEUS showed an endoleak sensitivity of 91.2%, a specificity of 100%, a positive predictive value of 100%, and a negative predictive value of 84.6%. No covariate with an influence on the correct classification could be identified either for CEUS or CT.
    Conclusions: CEUS should be considered a valid complementary method to CTA in the lifelong surveillance after EVAR. As type II endoleaks seem to be a common early-term, sometimes spontaneously resolving complication that can potentially be missed by CTA, we suggest combined follow-up protocols including CEUS in the early on postinterventional assessment.
    MeSH term(s) Humans ; Contrast Media ; Endovascular Aneurysm Repair ; Endoleak/diagnostic imaging ; Endoleak/etiology ; Follow-Up Studies ; Aortic Aneurysm, Abdominal/diagnostic imaging ; Aortic Aneurysm, Abdominal/surgery ; Aortic Aneurysm, Abdominal/complications ; Aortography/methods ; Retrospective Studies ; Blood Vessel Prosthesis Implantation/adverse effects ; Treatment Outcome ; Endovascular Procedures/adverse effects ; Tomography, X-Ray Computed
    Chemical Substances Contrast Media
    Language English
    Publishing date 2024-01-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1027366-9
    ISSN 1615-5947 ; 0890-5096
    ISSN (online) 1615-5947
    ISSN 0890-5096
    DOI 10.1016/j.avsg.2023.11.040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2882: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: Intraneural vascularity of the median, ulnar and common peroneal nerve: Microvascular ultrasound and pathophysiological implications.

    Deeg, Johannes / Mündel, Felix / Loizides, Alexander / Gruber, Leonhard / Gruber, Hannes

    Australasian journal of ultrasound in medicine

    2023  Volume 26, Issue 3, Page(s) 175–183

    Abstract: Objectives: Changes in the microvascular environment are considered crucial in the pathogenesis of compression neuropathies. Several studies have demonstrated elevated intraneural vascularity in severe neuropathy compared with healthy subjects, where ... ...

    Abstract Objectives: Changes in the microvascular environment are considered crucial in the pathogenesis of compression neuropathies. Several studies have demonstrated elevated intraneural vascularity in severe neuropathy compared with healthy subjects, where intraneural vascularity is considered predominantly undetectable. The aim of this study was to assess and quantify intraneural vasculature by superb microvascular imaging (SMI) in healthy volunteers in the median, ulnar and common peroneal nerve.
    Methods: Intraneural vascularity was quantified in 26 healthy volunteers (312 segments overall) by SMI sonography using a 22-MHz linear transducer. Individual nerve segment vascularity was compared with the mean vascularity using one-way ANOVA and Kruskal-Wallis tests, respectively. Vendor-provided quantification and manual vessel count were compared by linear regression analysis.
    Results: Intraneural vascularity was detectable in all nerve segments (100.0%). Vessel density was highest in the median nerve at the wrist (1.54 ± 0.44/mm
    Conclusion: Superb microvascular imaging can facilitate the visualisation of nerve vascularity and even detect local variations in vessel density. The pathophysiological implications for peripheral neuropathies, especially compression neuropathies, warrant further investigation, but the absence of visible intraneural vasculature as a negative finding in the diagnostic of compression neuropathies should be interpreted with caution, as the intraneural vascularity may lie beyond the 18 MHz resolution power of a transducer.
    Language English
    Publishing date 2023-02-17
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2843953-3
    ISSN 2205-0140 ; 1836-6864
    ISSN (online) 2205-0140
    ISSN 1836-6864
    DOI 10.1002/ajum.12334
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Acute Ulnar Neuropathy Caused by a Hemorrhagic Intraneural Ganglion Cyst: Ultrasound as First-Line Imaging?

    Josip, Ena / Gruber, Hannes / Bauer, Thomas / Loizides, Alexander

    Ultraschall in der Medizin (Stuttgart, Germany : 1980)

    2021  Volume 44, Issue 3, Page(s) e136–e138

    Title translation Akute Ulnarisneuropathie verursacht durch ein hämorrhagisches intraneurales Ganglion: Ultraschall als Bildgebung der ersten Wahl?
    MeSH term(s) Humans ; Ganglion Cysts/complications ; Ganglion Cysts/diagnostic imaging ; Ganglion Cysts/surgery ; Ulnar Neuropathies ; Ultrasonography ; Hemorrhage/diagnostic imaging ; Hemorrhage/etiology ; Magnetic Resonance Imaging
    Language English
    Publishing date 2021-03-16
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 801064-x
    ISSN 1438-8782 ; 1439-0914 ; 1431-4894 ; 0172-4614
    ISSN (online) 1438-8782
    ISSN 1439-0914 ; 1431-4894 ; 0172-4614
    DOI 10.1055/a-1375-0467
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1572: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  9. Article ; Online: Ultrasound Versus CT for the Diagnosis of Acute Cholecystitis.

    Gruber, Hannes / Loizides, Alexander

    AJR. American journal of roentgenology

    2019  Volume 212, Issue 2, Page(s) W43

    MeSH term(s) Cholecystitis, Acute ; Humans ; Tomography, X-Ray Computed ; Ultrasonography
    Language English
    Publishing date 2019-01-21
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 82076-3
    ISSN 1546-3141 ; 0361-803X ; 0092-5381
    ISSN (online) 1546-3141
    ISSN 0361-803X ; 0092-5381
    DOI 10.2214/AJR.18.20440
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ue I Zs.57: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  10. Article ; Online: Imaging of Anatomical Variants of the Lower Limb Nerves: Clinical and Preoperative Relevance.

    Honold, Sarah / Honis, Hanne-Rose / Gruber, Hannes / Konschake, Marko / Moriggl, Bernhard / Loizides, Alexander

    Seminars in musculoskeletal radiology

    2023  Volume 27, Issue 2, Page(s) 136–152

    Abstract: Anatomical variants of peripheral nerves of the lower limb are relatively frequent and vulnerable to injury if not considered by the surgeon. Surgical procedures or percutaneous injections are often performed without knowing the anatomical situation. In ... ...

    Abstract Anatomical variants of peripheral nerves of the lower limb are relatively frequent and vulnerable to injury if not considered by the surgeon. Surgical procedures or percutaneous injections are often performed without knowing the anatomical situation. In a patient with normal anatomy, these procedures are mostly performed smoothly without major nerve complications. But in the case of anatomical variants, surgery may be challenging as "new" anatomical prerequisites complicate the procedure. In this context, high-resolution ultrasonography as the first-line imaging modality to depict peripheral nerves, has become a helpful adjunct in the preoperative setting. It is crucial, on the one hand, to gain knowledge of anatomical nerve variants and, on the other hand, to depict the anatomical situation preoperatively, to minimize the risk of surgical trauma to a nerve and make surgeries safer.
    MeSH term(s) Humans ; Peripheral Nerves/diagnostic imaging ; Peripheral Nerves/surgery ; Ultrasonography ; Upper Extremity
    Language English
    Publishing date 2023-04-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1360919-1
    ISSN 1098-898X ; 1089-7860
    ISSN (online) 1098-898X
    ISSN 1089-7860
    DOI 10.1055/s-0043-1761956
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4887: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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