Rehabilitative Ultrasound Imaging or diagnostic ultrasound is used to measure geometric properties of the lumbar multifidus muscle to infer muscle strength or degeneration for back pain therapy. For this purpose, a novel semi-automatic approach (FTS: Fisher-Tippett Segmentation) based upon the Decoupled Active Contour is proposed to reliably and quickly segment the lumbar multifidus muscle in diagnostic ultrasound. To overcome speckle or hardly visible region boundaries in ultrasound images, we first propose a novel external energy functional to explicitly consider the underlying Fisher-Tippett distribution of ultrasound data. We then introduce a user-guided Hidden Markov Model trellis formation for improved segmentation of weakly-defined regions. Extensive experiments have shown that our approach not only improves the segmentation performance when compared to existing methods, but also does not rely on sub-specialized knowledge for segmentation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1109/EMBC.2014.6944879 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Contraction ratio of multifidus and erector spinae muscles in unilateral sacroiliac joint pain: A cross-sectional trial.
Sci Rep
January 2025
Department of Physical Therapy for Women's Health, Faculty of Physical Therapy, Deraya University, Minia, Egypt.
Sacroiliac joint (SIJ) pain is one of the most prevalent reasons for disability, it affects the contraction ratio of the muscles of the back. Imaging is critical for diagnosing back muscles. The purpose of this study was to look at changes in the muscle contraction ratio of the lumbar multifidus (LM) and erector spinae (ES) in unilateral SIJ pain.
View Article and Find Full Text PDFResearch Progress on the Posterior Midline Lumbar Spinous Process-Splitting Approach.
Orthop Surg
January 2025
Health Science Center, Ningbo University, Ningbo, China.
The traditional posterior median approach laminectomy is widely used for lumbar decompression. However, the bilateral dissection of paraspinal muscles during this procedure often leads to postoperative muscle atrophy, chronic low back pain, and other complications. The posterior midline spinous process-splitting approach (SPSA) offers a significant advantage over the traditional approach by minimizing damage to the paraspinal muscles.
View Article and Find Full Text PDFStrength and endurance of the lumbar extensor muscles and their predictors: A cross-sectional study in healthy subjects.
J Electromyogr Kinesiol
December 2024
Department of Neurology, Center for Neuromuscular Diseases (Associated National Center in the European Reference Network ERN EURO-NMD), University Hospital Brno, Brno, Czechia; Faculty of Medicine, Masaryk University, Brno, Czechia; Department of Rehabilitation, University Hospital Brno, Brno, Czechia; Department of Public Health, Faculty of Medicine, Masaryk University, Brno, Czechia.
The purpose of this cross-sectional study was to present the values of maximal isometric lumbar extensor muscle strength (MILEMS) and lumbar extensor muscle endurance (LEME) in healthy subjects and to study the influence of physiological factors on these parameters. MILEMS using a hand-held dynamometer in three positions (prone, sitting, standing) and LEME using the Biering-Sørensen test were assessed in 115 healthy volunteers. The MILEMS measurements for the specific positions were correlated with each other (Pearson correlation coefficients 0.
View Article and Find Full Text PDFParavertebral muscle degeneration affects coronal balance in patients with degenerative lumbar scoliosis.
World Neurosurg
January 2025
School of Medicine, Zhejiang University, 866 Yuhangtang Rd, Hangzhou 310058, P.R. China; Orthopaedics Center, the Second Affiliated Hospital Zhejiang University School of Medicine, 1511 Jianghong Rd, Hangzho 310014, P.R. China. Electronic address:
Purpose: This study aimed to investigate the impact of paraspinal muscle (PSM) degeneration on coronal balance in patients with degenerative lumbar scoliosis (DLS) METHODS: In this retrospective cross-sectional study, 127 DLS patients who underwent spinal fusion surgery were reviewed. Preoperative X-rays and MRIs were used to assess PSM degeneration, measured by the cross-sectional area (CSA) and fat infiltration rate (FIR) of the multifidus (MF) and erector spinae (ES) muscles. The ratios of the convex to concave sides, namely RCSA and RFIR, were calculated.
View Article and Find Full Text PDFSpinopelvic malalignment correlates to lumbar instability and lumbar musculature in chronic low back pain-an exploratory study.
Sci Rep
December 2024
Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA.
As PI-LL mismatch is an effective index for spinal surgery and PI-LL less than 10 probably indicates better quality of life, this study aimed to assess spinopelvic parameters, lumbar instability, and lumbar muscle morphology in patients with chronic low back pain (CLBP) with different PI-LL mismatches. This cross-sectional study included 158 CLBP patients. The association between lumbar extensor muscle morphology (measured from magnetic resonance imaging) and spinopelvic parameters (measured from standing lateral radiographs) and lumbar instability (measured from lumbar flexion/extension radiographs) was compared between two groups of patients with different PI-LL mismatch.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!