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  1. Article ; Online: Shoulder MRI: what do we miss?

    Polster, Joshua M / Schickendantz, Mark S

    AJR. American journal of roentgenology

    2010  Volume 195, Issue 3, Page(s) 577–584

    Abstract: ... accurately on shoulder MRI, describe the technical reasons that limit their detection, and suggest imaging ... protocol modifications that may improve radiologists' accuracy.: Conclusion: Although MRI is ... Objective: Our aim is to review several shoulder abnormalities that are difficult to detect ...

    Abstract Objective: Our aim is to review several shoulder abnormalities that are difficult to detect accurately on shoulder MRI, describe the technical reasons that limit their detection, and suggest imaging protocol modifications that may improve radiologists' accuracy.
    Conclusion: Although MRI is an excellent tool for detecting some abormalities, there are a number of subtler abnormalities of clinical significance that give radiologists greater difficulty. By understanding the reasons for limited detection and modifying protocols accordingly, radiologists may be able to improve identification, allowing more accurate clinical decision making.
    MeSH term(s) Arthroscopy ; Cartilage Diseases/diagnosis ; Cartilage Diseases/pathology ; Cartilage Diseases/physiopathology ; Contrast Media ; Diagnosis, Differential ; Humans ; Joint Diseases/diagnosis ; Joint Diseases/pathology ; Joint Diseases/physiopathology ; Magnetic Resonance Imaging/methods ; Muscle, Skeletal/injuries ; Shoulder Joint/injuries ; Shoulder Joint/pathology ; Shoulder Joint/physiopathology
    Chemical Substances Contrast Media
    Language English
    Publishing date 2010-09
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 82076-3
    ISSN 1546-3141 ; 0361-803X ; 0092-5381
    ISSN (online) 1546-3141
    ISSN 0361-803X ; 0092-5381
    DOI 10.2214/AJR.10.4683
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Do not forget the brachial plexus-prevalence of distal brachial plexus pathology on routine shoulder MRI.

    Antil, Neha / ElGuindy, Yehia / Lutz, Amelie M

    European radiology

    2020  Volume 31, Issue 6, Page(s) 3555–3563

    Abstract: Objectives: Most of the shoulder magnetic resonance imaging (MRI) examination focuses on internal ... and/or muscular denervation changes seen on routine shoulder MRI examinations and discuss common ... for shoulder MRI examinations.: Key points: • Normal T2 signal of the brachial plexus is iso- to slightly ...

    Abstract Objectives: Most of the shoulder magnetic resonance imaging (MRI) examination focuses on internal joint structures but disregarding other structures like the distal brachial plexus, which may miss important findings. Hereby, we attempt to evaluate the prevalence of distal brachial plexus abnormalities and/or muscular denervation changes seen on routine shoulder MRI examinations and discuss common pathologies affecting the distal brachial plexus.
    Material and methods: A total of 701 routine shoulder MRI studies were evaluated. The evaluation of each exam was focused on the visualized brachial plexus elements and musculature abnormalities in each case. If any abnormalities of plexus and/or musculature were found, potential underlying etiologies such as paralabral or spinoglenoid notch cysts, infiltrative/primary masses on imaging, history of prior viral illness, and radiation therapy were searched. It was then confirmed whether the abnormal findings were mentioned in the exam reports or not.
    Results: Thirty-four cases (4.85%) demonstrated abnormal findings of the visualized brachial plexus cords or branches and/or musculature. It was observed that in 35.3% of exam reports these findings were not mentioned, mainly missing subtle nerve abnormalities, but correctly reporting and interpreting the encountered muscle abnormalities.
    Conclusion: The distal brachial plexus and its branches should be included in the search pattern for shoulder MRI examinations.
    Key points: • Normal T2 signal of the brachial plexus is iso- to slightly hyperintense to muscle but less signal intense than fluid. • Diffuse, geographic muscle edema is an indirect sign of brachial plexus pathology. • Increased T2-weighted nerve signal with or without caliber or course change should be reported and followed up to find the underlying etiology.
    MeSH term(s) Brachial Plexus/diagnostic imaging ; Brachial Plexus Neuropathies/diagnostic imaging ; Brachial Plexus Neuropathies/epidemiology ; Humans ; Magnetic Resonance Imaging ; Prevalence ; Shoulder/diagnostic imaging
    Language English
    Publishing date 2020-11-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s00330-020-07476-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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