title: Evaluation of Parotid Glands With Real-time Ultrasound Elastography in Children.
abstract: OBJECTIVE
  The aim of this study was to determine the strain index for parotid glands in children by using ultrasound elastography.
  
  
  METHODS
  In this prospective study, apparently healthy children were referred from the ear-nose-throat clinic to the radiology clinic for elastographic examinations. Conventional sonographic and elastographic examinations of the parotid glands were performed. A linear 5-12-MHz transducer was used to obtain the images.
  
  
  RESULTS
  A total of 54 children were enrolled in this prospective study. The normal mean strain index value ± SD for the parotid glands was 1.24 ± 0.67 (range, 0.29-1.39) regardless of sex. The mean age of girls was 7.42 ± 2.94 years (range, 3-14 years), and the age of boys was 8.50 ± 3.46 years (range, 4-16 years). The strain index values for the parotid glands in boys was 1.25 ± 0.76, and in girls it was 1.22 ± 0.55. There was no statistically significant difference in the strain index values between girls and boys (P= .986). There was no correlation between the strain index and age (r = 0.026) or body mass index (r = 0.066).
  
  
  CONCLUSIONS
  This study determined the mean strain index values for apparently healthy children. Such information can serve as a baseline from which pathologic parotid diseases can be diagnosed with ultrasound elastography in combination with other sonographic criteria.
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Gulay
authors.initials: G
authors.lastname: Gungor
authors.forename: Nursel
authors.initials: N
authors.lastname: Yurttutan
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Nursel
authors.initials: N
authors.lastname: Yurttan
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Nagihan
authors.initials: N
authors.lastname: Bilal
authors.forename: Mehmet Sait
authors.initials: MS
authors.lastname: Menzilcioglu
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.). dr.m.sait@hotmail.com.
authors.forename: Mehmet Sait
authors.initials: MS
authors.lastname: Menzicioglu
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Mahmut
authors.initials: M
authors.lastname: Duymus
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Serhat
authors.initials: S
authors.lastname: Avcu
authors.affiliation: Clinics of Radiology (G.G., S.C.) and Ear-Nose-Throat (N.B.), Kahramanmaras Necip Fazıl City Hospital, Kahramanmaras, Turkey; Department of Radiology, Kahramanmaras University School of Medicine, Kahramanmaras, Turkey (N.Y.); and Department of Radiology, Gazi University School of Medicine, Ankara, Turkey (M.S.M., M.D., S.A.).
authors.forename: Serdal
authors.initials: S
authors.lastname: Citil
mesh_terms: D000293:Adolescent; D002648:Child; D003199:Computer Systems; D055119:Elastic Modulus / Q000502:physiology*; D054459:Elasticity Imaging Techniques / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D015588:Observer Variation; D010306:Parotid Gland / Q000000981:diagnostic imaging* / Q000502:physiology*; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical
keywords: children; parotid; pediatric ultrasound; strain index ratio; ultrasound elastography