Differentiation between pelvic abscesses and pelvic tumors with diffusion-weighted MR imaging: a preliminary study

被引:14
作者
Chou, Chen-Pin [1 ,2 ]
Chiou, Shih-Hwa [2 ,3 ]
Levenson, Robin B. [4 ,5 ]
Huang, Jer-Shyung [1 ,2 ]
Yang, Tsung-Lung [1 ,2 ]
Yu, Chia-Cheng [2 ,6 ]
Chiang, An-Jen [2 ,7 ]
Pan, Huay-Ben [1 ,2 ,8 ]
机构
[1] Kaohsiung Vet Gen Hosp, Dept Radiol, Kaohsiung 813, Taiwan
[2] Natl Yang Ming Univ, Sch Med, Taipei 112, Taiwan
[3] Taipei Vet Gen Hosp, Dept Med Res & Educ, Taipei, Taiwan
[4] Harvard Univ, Sch Med, Boston, MA 02215 USA
[5] Beth Israel Deaconess Med Ctr, Dept Radiol, Boston, MA 02215 USA
[6] Kaohsiung Vet Gen Hosp, Dept Urol, Kaohsiung 813, Taiwan
[7] Kaohsiung Vet Gen Hosp, Dept Obstet & Gynecol, Kaohsiung 813, Taiwan
[8] I Shou Univ, Dept Med Imaging & Radiol Sci, Kaohsiung, Taiwan
关键词
Pelvic abscess; Pelvic cystic malignancy; Apparent diffusion coefficient; MRI; Diffusion-weighted MRI; BRAIN-ABSCESS;
D O I
10.1016/j.clinimag.2011.11.018
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Purpose: Use diffusion-weighted magnetic resonance imaging (MRI) in differentiating pelvic abscess from pelvic cystic tumor. Materials and methods: Patients with pelvic abscess (n=23) or pelvic cystic tumor (n=15) who underwent diffusion-weighted MRI were reviewed. Results: Pelvic abscesses showed hyperintensity on diffusion-weighted MRI and hypointensity on apparent diffusion coefficient (ADC) map. The mean ADC values of fluid in pelvic abscess and pelvic tumors were 0.73 +/- 0.15x10(-3) and 2.27 +/- 0.45x10(-3) mm(2)/s, respectively. Pelvic abscesses had significantly lower ADC values than pelvic cystic tumors (P<.001). Conclusion: Diffusion-weighted MRI provides a noncontrast method for interpreting pelvic cystic lesions. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:532 / 538
页数:7
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