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Amelie M. Lutz - One of the best experts on this subject based on the ideXlab platform.

  • Do not forget the Brachial Plexus—prevalence of distal Brachial Plexus pathology on routine shoulder MRI
    European Radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    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.

  • Do not forget the Brachial Plexus-prevalence of distal Brachial Plexus pathology on routine shoulder MRI.
    European radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    Abstract:

    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. 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. 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. The distal Brachial Plexus and its branches should be included in the search pattern for shoulder MRI examinations. • 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.

  • MR Imaging of the Brachial Plexus
    Neuroimaging Clinics of North America, 2013
    Co-Authors: Amelie M. Lutz, Garry E. Gold, Christopher F. Beaulieu
    Abstract:

    Continuous improvements in magnetic resonance (MR) scanner, coil, and pulse sequence technology have resulted in the ability to perform routine, high-quality imaging of the Brachial Plexus. Reliable fat suppression on T2-weighted images is an absolute essential for successful Brachial Plexus MR imaging. MRI of the Brachial Plexus is a valuable diagnostic tool for detection and preoperative staging of mass lesions involving the Brachial Plexus, in evaluating inflammatory and traumatic Brachial Plexus changes.

  • MR Imaging of the Brachial Plexus
    Neuroimaging clinics of North America, 2013
    Co-Authors: Amelie M. Lutz, Garry E. Gold, Christopher F. Beaulieu
    Abstract:

    Continuous improvements in magnetic resonance scanner, coil, and pulse sequence technology have resulted in the ability to perform routine, high-quality imaging of the Brachial Plexus. With knowledge of the anatomy of the Plexus, and a familiarity with common pathologic conditions affecting this area, radiologists can provide valuable imaging evaluation of patients with Brachial Plexus pathologies.

Neha Antil - One of the best experts on this subject based on the ideXlab platform.

  • Do not forget the Brachial Plexus-prevalence of distal Brachial Plexus pathology on routine shoulder MRI.
    European radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    Abstract:

    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. 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. 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. The distal Brachial Plexus and its branches should be included in the search pattern for shoulder MRI examinations. • 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.

  • Do not forget the Brachial Plexus—prevalence of distal Brachial Plexus pathology on routine shoulder MRI
    European Radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    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.

Michelle A. James - One of the best experts on this subject based on the ideXlab platform.

  • Long-Term Outcomes of Brachial Plexus Reconstruction with Sural Nerve Autograft for Brachial Plexus Birth Injury.
    Plastic and reconstructive surgery, 2019
    Co-Authors: M. Claire Manske, Andrea S. Bauer, Vincent R. Hentz, Michelle A. James
    Abstract:

    Infants with Brachial Plexus birth injury who do not recover motor function spontaneously in a timely manner are candidates for Brachial Plexus reconstruction with nerve autograft. Outcomes of this intervention are incompletely understood. The authors present the long-term outcomes of Brachial Plexus reconstruction with sural nerve autograft in infants with Brachial Plexus birth injury. The authors retrospectively reviewed all infants with Brachial Plexus birth injury who underwent Brachial Plexus reconstruction with sural nerve autograft between 1992 and 2014 with a minimum 2-year follow-up. The authors used Active Movement Scale scores to determine the presence and timing of shoulder, elbow, and wrist recovery. They assessed recovery of hand function in infants with global Brachial Plexus birth injury with the Raimondi scale. The number and type of secondary reconstructive procedures were identified. Forty-three infants who underwent Brachial Plexus reconstruction at age 7 ± 2 months old were followed for 7 ± 5 years. Most infants recovered antigravity elbow flexion (91 percent) and shoulder abduction (67 percent), but fewer recovered antigravity shoulder external rotation (19 percent) and wrist extension (37 percent). Mean postoperative times until observed antigravity motor strength (Active Movement Scale score >5) at the shoulder, elbow, and wrist were all greater than 12 months; evidence of initial motor recovery (Active Movement Scale score >2) was observed earlier. The mean Raimondi score in infants with global Brachial Plexus birth injury was 2.2 (range, 0 to 5) at final follow-up. Thirty-three children underwent 2 ± 1.2 secondary reconstructive procedures. Brachial Plexus reconstruction with sural nerve autograft reliably results in recovery of shoulder abduction and elbow flexion, but recovery of shoulder external rotation and wrist extension is less predictable, and recovery often takes more than 1 year. Secondary procedures are often performed to optimize function. Therapeutic, IV.

Yehia Elguindy - One of the best experts on this subject based on the ideXlab platform.

  • Do not forget the Brachial Plexus-prevalence of distal Brachial Plexus pathology on routine shoulder MRI.
    European radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    Abstract:

    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. 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. 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. The distal Brachial Plexus and its branches should be included in the search pattern for shoulder MRI examinations. • 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.

  • Do not forget the Brachial Plexus—prevalence of distal Brachial Plexus pathology on routine shoulder MRI
    European Radiology, 2020
    Co-Authors: Neha Antil, Yehia Elguindy, Amelie M. Lutz
    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.

Hoang C. Nguyen - One of the best experts on this subject based on the ideXlab platform.

  • Transscalene Brachial Plexus Block: A New Posterolateral Approach for Brachial Plexus Block
    Anesthesia & Analgesia, 2007
    Co-Authors: Hoang C. Nguyen, Erwin Fath, Sebastian Wirtz
    Abstract:

    Depending on the approach to the upper Brachial Plexus, severe complications have been reported. We describe a novel posterolateral approach for Brachial Plexus block which, from an anatomical and theoretical point of view, seems to offer advantages. Twenty-seven patients were scheduled to undergo e

  • Transscalene Brachial Plexus block: a new posterolateral approach for Brachial Plexus block.
    Anesthesia and analgesia, 2007
    Co-Authors: Hoang C. Nguyen, Erwin Fath, Sebastian Wirtz, Tareg Bey
    Abstract:

    Depending on the approach to the upper Brachial Plexus, severe complications have been reported. We describe a novel posterolateral approach for Brachial Plexus block which, from an anatomical and theoretical point of view, seems to offer advantages. Twenty-seven patients were scheduled to undergo elective major surgery of the upper arm or shoulder using this new transscalene Brachial Plexus block. The success rate was 85.2% for surgery. Two patients required additional analgesia with IV sufentanil. In two others, regional anesthesia was inadequate. The side effects of this technique included reversible recurrent laryngeal nerve blockade in two patients and a reversible Horner syndrome in one patient. Further studies are needed to compare the transscalene Brachial Plexus block with other approaches to the Brachial Plexus.