The Usefulness of STIR Image in Breast MRI.
10.3348/jkrs.2003.49.5.427
- Author:
Hyon Joo KWAG
1
;
Shin Ho KOOK
;
Young Rae LEE
;
Min Hee LEE
;
Hae Won PARK
;
Won Jin MOON
;
Seung Kwon KIM
;
Eun Chul CHUNG
Author Information
1. Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine. kook3@samsung.co.kr
- Publication Type:Original Article ; Comparative Study
- Keywords:
Breast, magnetic resonance (MR);
Magnetic resonance (MR), pulse sequences;
Magnetic resonance (MR), comparative studies
- MeSH:
Breast*;
Humans;
Magnetic Resonance Imaging*;
Retrospective Studies
- From:Journal of the Korean Radiological Society
2003;49(5):427-432
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To assess the usefulness of STIR (short tau inversion recovery) imaging in breast MRI (magnetic resonance imaging). MATERIALS AND METHODS: We retrospectively reviewed T1- and T2-weighted (T1WI, T2WI), STIR, and dynamically enhanced images of 44 pathologically confirmed breast lesions (benign, 13; malignant, 31) in 36 patients. We selected the dynamically image which best depicted a particular lesion, and then made hard copy of the corresponding T1WI, T2WI, and STIR images. Using the dynamically enhanced image as a standard, we analysed these in terms of parenchymal pattern, lesion detectability, differentiation between benign and malignant lesions, extent, multifocality, and the ductal system. The results were statistically analyzed. RESULTS: In 33 of 44 cases (75%), detectability was greater at STIR imaging than at T1- and T2WI, especially in fibrofatty or fatty breast (14/14 cases, p<0.05). STIR images did not always differentiate between benign and malignant lesions, and extent (50%) and multifocality (46%) were commonly exaggerated compared with T1- and T2WI. In 18 of 44 cases (41%), STIR images suggested the presence of ductal structures. CONCLUSION: For the detection of lesions, STIR imaging was more useful than T1- and T2WI, though STIR did not differentiate between benign and malignant lesions. The extent and multifocality of a lesion were exaggerated on STIR images, compared with T1- and T2WI.
