Hui-Chu Chiu1,2, Chun-Jung Juan3,
Hing-Chiu Chang4,5, Hsiao-Wen Chung3,5, Cheng-Chieh
Cheng3,5, Su-Chin Chiu3,5, Cheng-Yi Cheng1,
Cheng-Yu Chen3, Guo-Shu Huang3
1Department of Nuclear Medicine,
Tri-Service General Hospital, Taipei, Taiwan; 2EMBA in Global
Chinese Management, Department of Business Administration, College of
Management, Tamkang University, Taipei, Taiwan; 3Department of
Radiology, Tri-Service General Hospital, Taipei, Taiwan; 4Applied
Science Laboratory, GE Healthcare Taiwan, Taipei, Taiwan; 5Institute
of Biomedical Electronics and Bioinformatics, National Taiwan University,
Taipei, Taiwan
The
effects of age, gender and body mass index (BMI) on parotid fat content and
parotid ADC measurements have never been investigated yet. In this study, we
measured parotid ADC values using non-fat-saturated and fat-saturated DWI
pulse sequences including fast spin-echo PROPELLER and echoplanar
acquisitions. Our results highlight the parotid fat content is influenced by
gender and is significantly positively associated with age and BMI. The
parotid fat content has a significantly negative effect on parotid ADC values
that is most apparent in non-fat-saturated DWI pulse sequence and the effect
could not be remedied by any fat-saturated DWI pulse sequence.