66 156

Cited 26 times in

Usefulness of dynamic contrast-enhanced MRI in differentiating between septic arthritis and transient synovitis in the hip joint

Authors
Kim, EY; Kwack, KS; Cho, JH; Lee, DH; Yoon, SH
Citation
AJR. American journal of roentgenology, 198(2):428-433, 2012
Journal Title
AJR. American journal of roentgenology
ISSN
0361-803X1546-3141
Abstract
OBJECTIVE: The purpose of this study was to show the usefulness of dynamic contrast-enhanced MRI (DCE-MRI) and to determine the optimal time window in MRI for differentiating between septic arthritis and transient synovitis in painful hip joints.



MATERIALS AND METHODS: Eighteen patients who underwent DCE-MRI were enrolled, and the final diagnoses were septic arthritis (n = 7) and transient synovitis (n = 11). The enhancement patterns of DCE-MRI were dichotomized according to the shape of the time-signal intensity curves. The time at the maximal difference in the signal intensity between two time-signal intensity curves of both femoral heads was recorded. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were calculated. Receiver operating characteristic curves were calculated.



RESULTS: Six of seven patients with septic arthritis in the hip joint had decreased enhancement during the early phase of DCE-MRI. The enhancement difference between the two patient groups was statistically significant (p = 0.0498). The time at the maximal difference in the signal intensity between two time-signal intensity curves of both femoral heads was approximately 3.5 minutes. The area under the receiver operating characteristic curve for predicting septic arthritis was 0.792.



CONCLUSION: DCE-MRI is useful in differentiating between septic hip arthritis and transient synovitis. If static contrast-enhanced coronal MRI is used, the optimal time for the acquisition of contrast-enhanced coronal MRI is approximately 3.5 minutes.
MeSH terms
AdolescentAdultAgedArthritis, Infectious/*diagnosisChildChild, PreschoolContrast Media/diagnostic useDiagnosis, DifferentialFemaleGadolinium DTPA/diagnostic useHip Joint/*pathologyHumansImage Interpretation, Computer-AssistedInfantInfant, NewbornMagnetic Resonance Imaging/*methodsMaleMiddle AgedPredictive Value of TestsROC CurveRetrospective StudiesSensitivity and SpecificityStatistics, NonparametricSynovitis/*diagnosis
DOI
10.2214/AJR.11.6937
PMID
22268189
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
Journal Papers > School of Medicine / Graduate School of Medicine > Orthopedic Surgery
Journal Papers > School of Medicine / Graduate School of Medicine > Physical Medicine & Rehabilitation
AJOU Authors
곽, 규성조, 재호이, 두형윤, 승현
Full Text Link
Files in This Item:
fulltext not available.txtDownload
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse