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Yun, Kim, Kang, Cho, Kim, Koo, and Han: Current Practices in Breast Magnetic Resonance Imaging: a Survey Involving the Korean Society of Breast Imaging
Original Article

Investig Magn Reson Imaging 2017;21(4):233-241.

Published online: 31 December 2017

DOI: https://doi.org/10.13104/imri.2017.21.4.233

Current Practices in Breast Magnetic Resonance Imaging: a Survey Involving the Korean Society of Breast Imaging

Bo La Yun1, Sun Mi Kim1, Bong Joo Kang2, Nariya Cho3, Sung Hun Kim2, Hye Ryoung Koo4, Boo-Kyung Han6

1Department of Radiology, Seoul National University Bundang Hospital, Seongnam-si, Korea

2Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea

3Department of Radiology, Seoul National University College of Medicine, Seoul, Korea

4Department of Radiology, Hanyang University Hospital, Seoul, Korea

5Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea

6Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Correspondence to: Sun Mi Kim, M.D. Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Korea. Tel. +82-31-787-7617 Fax. +82-31-787-4070 E-mail: kimsmlms@daum.net

Received 7 August 2017       Accepted 11 September 2017

Copyright © 2017 Korean Society of Magnetic Resonance in Medicine

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To report on the current practices in breast magnetic resonance imaging (MRI) in Korea.

Materials and Methods

We invited the 68 members of the Korean Society of Breast Imaging who were working in hospitals with available breast MRI to participate in a survey on how they performed and interpreted breast MRI. We asked one member from each hospital to respond to the survey. A total of 22 surveys from 22 hospitals were analyzed.

Results

Out of 22 hospitals, 13 (59.1%) performed at least 300 breast MRI examinations per year, and 5 out of 22 (22.7%) performed > 1200 per year. Out of 31 machines, 14 (45.2%) machines were 1.5-T scanners and 17 (54.8%) were 3.0-T scanners. All hospitals did contrast-enhanced breast MRI. Full-time breast radiologists supervised the performance and interpreted breast MRI in 19 of 22 (86.4%) of hospitals. All hospitals used BI-RADS for MRI interpretation. For computer-aided detection (CAD), 13 (59.1%) hospitals sometimes or always use it and 9 (40.9%) hospitals did not use CAD. Two (9.1%) and twelve (54.5%) hospitals never and rarely interpreted breast MRI without correlating the mammography or ultrasound, respectively. The majority of respondents rarely (13/21, 61.9%) or never (5/21, 23.8%) interpreted breast MRI performed at an outside facility. Of the hospitals performing contrast-enhanced examinations, 15 of 22 (68.2%) did not perform MRI-guided interventional procedures.

Conclusion

Breast MRI is extensively performed in Korea. The indication and practical patterns are diverse. The information from this survey would provide the basis for the development of Korean breast MRI practice guidelines.

Keywords: Breast neoplasms, Diagnosis, Magnetic resonance imaging, Surveillance, South Korea

REFERENCES

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Fig. 1.
Graph shows responses to the question “What is the general indication for a diagnostic breast MRI in your institution?” (Check all that apply) (n = 83).
imri-2017-21-4-233f1.tif
Fig. 2.
Graph shows responses to the question “What is the general indication for a screening breast MRI in your institution?” (Check all that apply) (n = 64).
imri-2017-21-4-233f2.tif
Fig. 3.
Graph shows responses to the question “Your clinician's response to the MRI prescription”.
imri-2017-21-4-233f3.tif
Table 1.
Characteristics of Korean Breast MR Research Society survey responders and hospitals
Characteristics Number (%)
Gender
 Male 0 (0)
 Female 22 (100)
Age (years)
 30-39 1 (4.5)
 40-49 12 (54.5)
 >50 9 (40.9)
Practice type
 University hospital 21 (95.5)
 General hospital (secondary hospital) 1 (4.5)
 Private clinic
Breast MR exams per year
 >1200 5 (22.7)
 900-1200 1 (4.5)
 600-900 4 (18.2)
 300-600 4 (18.2)
 100-300 8 (36.4)
 <100 2 (9.1)
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