Abstract
Qualitative image-based Goutallier grading system is popular to examine fatty degeneration of shoulder muscles, but may not provide consistent results to describe the true status of the muscles due to observer-dependent variabilities and limitations of using one cross-sectional image. We calculated occupation ratio (ratio between the supraspinatus muscle and the fossa), single-image and volumetric fat contents to quantitatively describe the degree of muscle atrophy and fatty infiltration in the supraspinatus muscle and compared them with conventional Goutallier grading system. We retrospectively examined the MR images of 33 symptomatic patients. Significant differences were found in the occupation ratio (p < 0.01, Kruskall-Wallis H test) and volumetric fat contents (p < 0.05) among different grading groups while no differences were found in single-image fat contents. Correlations of the occupation ratio with single-image and volumetric fat contents were found to be moderate suggesting that muscle atrophy and fatty infiltration might be independent factors. Quantitative measurements of occupation ratio and threshold-based volumetric fat contents may be useful to provide consistent information describing both atrophy and fatty infiltration of the supraspinatus muscle which are important predictors of degenerative muscles.
| Original language | English |
|---|---|
| Pages (from-to) | 1449-1454 |
| Number of pages | 6 |
| Journal | International Journal of Precision Engineering and Manufacturing |
| Volume | 18 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2017 Oct 1 |
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Keywords
- 3D modeling
- Biomechanics
- Image post-processing
- MRI
- Muscle degeneration
- Shoulder
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
Cite this
Quantitative measurements of muscle degeneration in volumetric shoulder muscle models. / Hong, Ki Taek; Lee, Dokwan; Shin, Choongsoo; Choi, Jung Ah; Song, Yongnam.
In: International Journal of Precision Engineering and Manufacturing, Vol. 18, No. 10, 01.10.2017, p. 1449-1454.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative measurements of muscle degeneration in volumetric shoulder muscle models
AU - Hong, Ki Taek
AU - Lee, Dokwan
AU - Shin, Choongsoo
AU - Choi, Jung Ah
AU - Song, Yongnam
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Qualitative image-based Goutallier grading system is popular to examine fatty degeneration of shoulder muscles, but may not provide consistent results to describe the true status of the muscles due to observer-dependent variabilities and limitations of using one cross-sectional image. We calculated occupation ratio (ratio between the supraspinatus muscle and the fossa), single-image and volumetric fat contents to quantitatively describe the degree of muscle atrophy and fatty infiltration in the supraspinatus muscle and compared them with conventional Goutallier grading system. We retrospectively examined the MR images of 33 symptomatic patients. Significant differences were found in the occupation ratio (p < 0.01, Kruskall-Wallis H test) and volumetric fat contents (p < 0.05) among different grading groups while no differences were found in single-image fat contents. Correlations of the occupation ratio with single-image and volumetric fat contents were found to be moderate suggesting that muscle atrophy and fatty infiltration might be independent factors. Quantitative measurements of occupation ratio and threshold-based volumetric fat contents may be useful to provide consistent information describing both atrophy and fatty infiltration of the supraspinatus muscle which are important predictors of degenerative muscles.
AB - Qualitative image-based Goutallier grading system is popular to examine fatty degeneration of shoulder muscles, but may not provide consistent results to describe the true status of the muscles due to observer-dependent variabilities and limitations of using one cross-sectional image. We calculated occupation ratio (ratio between the supraspinatus muscle and the fossa), single-image and volumetric fat contents to quantitatively describe the degree of muscle atrophy and fatty infiltration in the supraspinatus muscle and compared them with conventional Goutallier grading system. We retrospectively examined the MR images of 33 symptomatic patients. Significant differences were found in the occupation ratio (p < 0.01, Kruskall-Wallis H test) and volumetric fat contents (p < 0.05) among different grading groups while no differences were found in single-image fat contents. Correlations of the occupation ratio with single-image and volumetric fat contents were found to be moderate suggesting that muscle atrophy and fatty infiltration might be independent factors. Quantitative measurements of occupation ratio and threshold-based volumetric fat contents may be useful to provide consistent information describing both atrophy and fatty infiltration of the supraspinatus muscle which are important predictors of degenerative muscles.
KW - 3D modeling
KW - Biomechanics
KW - Image post-processing
KW - MRI
KW - Muscle degeneration
KW - Shoulder
UR - http://www.scopus.com/inward/record.url?scp=85030836810&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85030836810&partnerID=8YFLogxK
U2 - 10.1007/s12541-017-0172-7
DO - 10.1007/s12541-017-0172-7
M3 - Article
AN - SCOPUS:85030836810
VL - 18
SP - 1449
EP - 1454
JO - International Journal of Precision Engineering and Manufacturing
JF - International Journal of Precision Engineering and Manufacturing
SN - 1229-8557
IS - 10
ER -