Meralgia paresthetica: 3-Tesla magnetic resonance neurography

Avneesh Chhabra; Filippo Del Grande; Theodoros Soldatos; Majid Chalian; Allan J. Belzberg; Eric H. Williams; Farahani S. Jalali; Gaurav K. Thawait; John Eng; John A. Carrino

doi:10.1007/s00256-012-1557-4

Meralgia paresthetica: 3-Tesla magnetic resonance neurography

Avneesh Chhabra, Filippo Del Grande, Theodoros Soldatos, Majid Chalian, Allan J. Belzberg, Eric H. Williams, Farahani S. Jalali, Gaurav K. Thawait, John Eng, John A. Carrino

School of Medicine

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Objective: To assess the diagnostic accuracy and observer performance of 3-Tesla magnetic resonance neurography (MRN) in the evaluation of meralgia paresthetica (MP). Materials and methods: Two independent readers were blinded to the clinical diagnosis and evaluated the MRN studies of the pelvis of 11 patients with MP and 28 control participants. In each study, the lateral femoral cutaneous nerves were assessed for signal alteration and/or neuroma formation, indicating lateral femoral cutaneous neuropathy, at various levels along their course. Intra- and inter-observer reliability was evaluated. Results: Both readers exhibited substantial intraobserver agreement in detecting signal alterations and neuroma formation of the lateral femoral cutaneous nerve (LFCN). The readers demonstrated moderate interobserver agreement in detecting signal alteration of the LFCN and poor interobserver agreement in diagnosing neuroma formation. Sensitivity, specificity, positive predictive value, and negative predictive value of LFCN neuropathy diagnosis were ≥71 % and ≥94 % for both readers respectively. The diagnostic test accuracy was ≥90 % for both readers. Conclusion: 3-Tesla MRN provides reliable and accurate diagnostic evaluation of meralgia paresthetica.

Original language	English (US)
Pages (from-to)	803-808
Number of pages	6
Journal	Skeletal Radiology
Volume	42
Issue number	6
DOIs	https://doi.org/10.1007/s00256-012-1557-4
State	Published - Jun 2013

Keywords

3-Tesla
Magnetic resonance neurography
Meralgia paresthetica

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1007/s00256-012-1557-4

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title = "Meralgia paresthetica: 3-Tesla magnetic resonance neurography",

abstract = "Objective: To assess the diagnostic accuracy and observer performance of 3-Tesla magnetic resonance neurography (MRN) in the evaluation of meralgia paresthetica (MP). Materials and methods: Two independent readers were blinded to the clinical diagnosis and evaluated the MRN studies of the pelvis of 11 patients with MP and 28 control participants. In each study, the lateral femoral cutaneous nerves were assessed for signal alteration and/or neuroma formation, indicating lateral femoral cutaneous neuropathy, at various levels along their course. Intra- and inter-observer reliability was evaluated. Results: Both readers exhibited substantial intraobserver agreement in detecting signal alterations and neuroma formation of the lateral femoral cutaneous nerve (LFCN). The readers demonstrated moderate interobserver agreement in detecting signal alteration of the LFCN and poor interobserver agreement in diagnosing neuroma formation. Sensitivity, specificity, positive predictive value, and negative predictive value of LFCN neuropathy diagnosis were ≥71 % and ≥94 % for both readers respectively. The diagnostic test accuracy was ≥90 % for both readers. Conclusion: 3-Tesla MRN provides reliable and accurate diagnostic evaluation of meralgia paresthetica.",

keywords = "3-Tesla, Magnetic resonance neurography, Meralgia paresthetica",

author = "Avneesh Chhabra and {Del Grande}, Filippo and Theodoros Soldatos and Majid Chalian and Belzberg, {Allan J.} and Williams, {Eric H.} and Jalali, {Farahani S.} and Thawait, {Gaurav K.} and John Eng and Carrino, {John A.}",

year = "2013",

month = jun,

doi = "10.1007/s00256-012-1557-4",

language = "English (US)",

volume = "42",

pages = "803--808",

journal = "Skeletal Radiology",

issn = "0364-2348",

publisher = "Springer Verlag",

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TY - JOUR

T1 - Meralgia paresthetica

T2 - 3-Tesla magnetic resonance neurography

AU - Chhabra, Avneesh

AU - Del Grande, Filippo

AU - Soldatos, Theodoros

AU - Chalian, Majid

AU - Belzberg, Allan J.

AU - Williams, Eric H.

AU - Jalali, Farahani S.

AU - Thawait, Gaurav K.

AU - Eng, John

AU - Carrino, John A.

PY - 2013/6

Y1 - 2013/6

N2 - Objective: To assess the diagnostic accuracy and observer performance of 3-Tesla magnetic resonance neurography (MRN) in the evaluation of meralgia paresthetica (MP). Materials and methods: Two independent readers were blinded to the clinical diagnosis and evaluated the MRN studies of the pelvis of 11 patients with MP and 28 control participants. In each study, the lateral femoral cutaneous nerves were assessed for signal alteration and/or neuroma formation, indicating lateral femoral cutaneous neuropathy, at various levels along their course. Intra- and inter-observer reliability was evaluated. Results: Both readers exhibited substantial intraobserver agreement in detecting signal alterations and neuroma formation of the lateral femoral cutaneous nerve (LFCN). The readers demonstrated moderate interobserver agreement in detecting signal alteration of the LFCN and poor interobserver agreement in diagnosing neuroma formation. Sensitivity, specificity, positive predictive value, and negative predictive value of LFCN neuropathy diagnosis were ≥71 % and ≥94 % for both readers respectively. The diagnostic test accuracy was ≥90 % for both readers. Conclusion: 3-Tesla MRN provides reliable and accurate diagnostic evaluation of meralgia paresthetica.

AB - Objective: To assess the diagnostic accuracy and observer performance of 3-Tesla magnetic resonance neurography (MRN) in the evaluation of meralgia paresthetica (MP). Materials and methods: Two independent readers were blinded to the clinical diagnosis and evaluated the MRN studies of the pelvis of 11 patients with MP and 28 control participants. In each study, the lateral femoral cutaneous nerves were assessed for signal alteration and/or neuroma formation, indicating lateral femoral cutaneous neuropathy, at various levels along their course. Intra- and inter-observer reliability was evaluated. Results: Both readers exhibited substantial intraobserver agreement in detecting signal alterations and neuroma formation of the lateral femoral cutaneous nerve (LFCN). The readers demonstrated moderate interobserver agreement in detecting signal alteration of the LFCN and poor interobserver agreement in diagnosing neuroma formation. Sensitivity, specificity, positive predictive value, and negative predictive value of LFCN neuropathy diagnosis were ≥71 % and ≥94 % for both readers respectively. The diagnostic test accuracy was ≥90 % for both readers. Conclusion: 3-Tesla MRN provides reliable and accurate diagnostic evaluation of meralgia paresthetica.

KW - 3-Tesla

KW - Magnetic resonance neurography

KW - Meralgia paresthetica

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Meralgia paresthetica: 3-Tesla magnetic resonance neurography

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Keywords

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