Der prognostische Wert der dynamischen, kontrastmittelverstärkten Region-of-interest-MRT in der Akutphase der idiopathischen Fazialisparese

Kress, Bodo; Griesbeck, F.; Efinger, K.; Gottschalk, A.; Goriup, A; Solbach, Thomas; Kornhuber, A.; Bähren, W

doi:10.1055/s-2002-25112

Fortschr Röntgenstr

2002

DOI: 10.1055/s-2002-25112

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Der prognostische Wert der dynamischen, kontrastmittelverstärkten Region-of-interest-MRT in der Akutphase der idiopathischen Fazialisparese

Bodo Kress

F. Griesbeck²,

K. Efinger³

et al.

Abstract: MRI has a prognostic value at an early stage of the illness. In the clinical setting this measurement is easy to perform, so that it is possible to obtain prognostic information at a stage when causal treatment is still possible.

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Quantitative Analyse der MR-Signal-Intensität des N. petrosus major bei Patienten mit idiopathischer Fazialisparese

Kress

Griesbeck²,

Stippich

et al. 2004

Nervenarzt

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The objective of this study was to evaluate signal intensity increases in the greater petrosal nerve after contrast agent administration to gather information on the etiology of idiopathic peripheral facial paralysis. Magnetic resonance images were obtained from 18 patients who received inpatient medical treatment for acute peripheral facial nerve palsy. Images of intratemporal segments of the facial nerve were taken with a slice thickness of 0.75 mm. After multiplanar reconstruction, regions of interest (ROI) were defined in the proximal segment of the greater petrosal nerve. After multiplanar reconstruction, it was possible to visualize the greater petrosal nerves of all 18 patients. The nerve's average diameter was found to be 0.68 mm (range 0.5-0.9). Signal intensity increased by an average of 50.3% (range -10-146%) after contrast agent administration. Whereas this intensity was slightly reduced in two patients, it was increased in 16. No correlation could be established between greater signal intensity and medical history, clinical condition, laboratory findings, or electrophysiological data. In contrast to quantitative measurements in the facial nerve, ROI measurements in the greater petrosal nerve do not correlate with medical history, clinical condition, or laboratory findings. For this reason, MRI of this nerve does not enable us to draw conclusions on the etiology of idiopathic peripheral facial paralysis.

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Quantitative Analyse der MR-Signal-Intensität des N. petrosus major bei Patienten mit idiopathischer Fazialisparese

Kress

Griesbeck²,

Stippich

et al. 2004

Nervenarzt

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ACR Appropriateness Criteria ® Cranial Neuropathy

Imaging

2017

Journal of the American College of Radiology

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Evaluation of cranial neuropathy can be complex given the different pathway of each cranial nerve as well as the associated anatomic landmarks. Radiological evaluation requires imaging of the entire course of the nerve from its nucleus to the end organ. MRI is the modality of choice with CT playing a complementary role, particularly in the evaluation of the bone anatomy. Since neoplastic and inflammatory lesions are prevalent on the differential diagnosis, contrast enhanced studies are preferred when possible. The American College of Radiology Appropriateness Criteria are evidencebased guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

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ACR Appropriateness Criteria® Cranial Neuropathy: 2022 Update

Rath¹,

Policeni²,

Juliano³

et al. 2022

Journal of the American College of Radiology

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Der prognostische Wert der dynamischen, kontrastmittelverstärkten Region-of-interest-MRT in der Akutphase der idiopathischen Fazialisparese

Abstract: MRI has a prognostic value at an early stage of the illness. In the clinical setting this measurement is easy to perform, so that it is possible to obtain prognostic information at a stage when causal treatment is still possible.

Cited by 4 publications

References 0 publications

Quantitative Analyse der MR-Signal-Intensität des N. petrosus major bei Patienten mit idiopathischer Fazialisparese

Quantitative Analyse der MR-Signal-Intensität des N. petrosus major bei Patienten mit idiopathischer Fazialisparese

ACR Appropriateness Criteria ® Cranial Neuropathy

ACR Appropriateness Criteria® Cranial Neuropathy: 2022 Update

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