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Korean J Intern Med. 2018 May 4. doi: 10.3904/kjim.2016.397. [Epub ahead of print]

Standardized, musculoskeletal ultrasonographic reference values for healthy Korean adults.

Author information

1
Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea.
2
Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea.
3
Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
4
Department of Internal Medicine, Chosun University College of Medicine, Gwangju, Korea.
5
Department of Internal Medicine, Jung's Rheumatism Clinic, Seoul, Korea.
6
Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
7
Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.
8
Department of Internal Medicine, National Police Hospital, Seoul, Korea.
9
Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, Korea.
10
Department of Internal Medicine, Ajou University Hospital, Suwon, Korea.
11
Department of Internal Medicine, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea.
12
Department of Internal Medicine, Bundang Jesaeng Hospital, Seongnam, Korea.
13
Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea.
14
Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

Background/Aims:

To define standard reference values for musculoskeletal ultrasonography (MSUS) in Korea.

Methods:

A total of 251 healthy adults were recruited for this study. Ultrasonography was performed by experienced rheumatologists who had undergone four appropriate training programs in Korea. A General Electric LOGIQ electronic ultrasound device fitted with a 12 MHz linear transducer was employed. Mean values ± standard deviations (SDs) were defined as standard reference values. Intraclass correlation coefficients was employed to evaluate the extent of inter- and intraobserver agreement when MSUS measurements were made.

Results:

The 251 study participants included 122 males. Mean subject age was 28.6 years. The average bone-to-capsule distance of the right-side second and third metacarpophalangeal (MCP) joints were 0.68 and 0.72 mm respectively, and those of the left-side joints 0.62 and 0.68 mm. The cartilage thicknesses of the rightside second and third MCP joints were 0.55 and 0.55 mm, and those of the leftside joints were 0.55 and 0.56 mm, respectively. The bone-to-capsule distances of the right and left wrists were 0.80 and 0.82 mm. In 12.4% of participants (31/251), the erosion score of the humeral head was 1.71. In the right-side knee joint, mean cartilage thicknesses of the medial and lateral condyles were 1.86 and 2.03 mm in longitudinal scans. High overall interobserver agreement was evident after appropriate training that included instruction on standard MSUS methodology.

Conclusions:

We defined standard reference values for MSUS in healthy Korean adults. The reliabilities of interobserver agreements were high after appropriate training program.

KEYWORDS:

Education; Musculoskeletal; Reference standards; Ultrasonography

PMID:
29722248
DOI:
10.3904/kjim.2016.397
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