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Fully automated deep learning system for detecting sarcopenia on brain MRI in glioblastoma

Radvile Mauricaite, Ella Mi, Jiarong Chen, Andrew Ho, Lillie Pakzad-Shahabi, Matthew Williams
2021 Neuro-Oncology  
However, it required manual selection of the temporalis muscle-containing MRI slice.  ...  The cross sectional area of eyeball segmentations were quantified and thresholded, to select the superior orbital MRI slice from each scan.  ...  Two neural networks (2D U-Nets) were trained, one to automatically segment the eyeball and the other to segment the temporalis muscle on 2D MRI images using Dice loss function.  ... 
doi:10.1093/neuonc/noab195.031 fatcat:xpytmftq2zcorpc6pihz25j4nq

Sex Differences in the Temporalis Tendon-Aponeurotic Complex: An in vivo MRI Macroscopic Analysis in Children and Adolescents

Rachelle Isidro, Iacopo Cioffi
2021 Cells Tissues Organs  
We provide, for the first time, volumetric data of the temporalis TAC in children and adolescents.  ...  We collected MRI studies from 90 healthy individuals, including equal numbers (15 M and 15 F) of young children (ages 5–7), children (9–11), and adolescents (13–15) and segmented the right temporalis and  ...  Statement of Ethics The research was conducted ethically in accordance with the World Medical Association Declaration of Helsinki.The research study was reviewed and approved by the University of Toronto  ... 
doi:10.1159/000516193 pmid:34091450 fatcat:h56j647kjzbepi7apjm4kpr2bi

Survival Outcomes following LINAC based Stereotactic Radiosurgery/Stereotactic Radiotherapy (SRST) treatment of brain metastases: The Wessex Experience

Mark Noble, Jeng Ching, Enrico Clarke
2021 Neuro-Oncology  
Further collection and analysis of the data might improve patient selection and their outcomes.  ...  Dates of death were obtained from the NHS Digital Spine and survival analysis using median overall survival was performed using the Kaplan Meier Method.  ...  Two neural networks (2D U-Nets) were trained, one to automatically segment the eyeball and the other to segment the temporalis muscle on 2D MRI images using Dice loss function.  ... 
doi:10.1093/neuonc/noab195.029 fatcat:ulfqsa5c7zgu5k4g7rmrqc3vpq

Prevalence of BRAF V600 in primary gliomas: a systematic review

Lily Andrews, Zak Thornton, Samir Saincher, Sarah Dawson, Vincent Cheng, Julian Higgins, Alexandra McAleenan, Kathreena Kurian
2021 Neuro-Oncology  
Method A systematic literature search was performed using Ovid MEDLINE and Embase from genesis to the 22nd October 2020. Studies were not restricted by language.  ...  Despite the potential benefit of BRAF inhibitors, the prevalence of BRAF V600 within primary gliomas is not fully discovered.  ...  Two neural networks (2D U-Nets) were trained, one to automatically segment the eyeball and the other to segment the temporalis muscle on 2D MRI images using Dice loss function.  ... 
doi:10.1093/neuonc/noab195.032 fatcat:4kwkn5vrgfan7cjgsh2tc2ou64

Painful Unilateral Temporalis Muscle Enlargement: Reactive Masticatory Muscle Hypertrophy

Christos D. Katsetos, Michael A. Bianchi, Fizza Jaffery, Sirma Koutzaki, Mark Zarella, Robert Slater
2013 Head and Neck Pathology  
Muscle biopsy is key in the diagnosis of reactive masticatory muscle hypertrophy and its distinction from masticatory muscle myopathy (hypertrophic branchial myopathy) and other non-reactive causes of  ...  The patient presented with bruxism and a painful swelling of the temple.  ...  Conflict of interest None.  ... 
doi:10.1007/s12105-013-0480-x pmid:23900775 pmcid:PMC4022940 fatcat:bvfzhbotpjgvdijbzgqxfam53u

Mechanobehavioral Scores in Women with and without TMJ Disc Displacement

L.R. Iwasaki, Y.M. Gonzalez, Y. Liu, H. Liu, M. Markova, L.M. Gallo, J.C. Nickel
2017 Journal of Dental Research  
Dynamic stereometry (MR images combined with jaw-tracking data) characterized individual-specific data of TMJ stress-field mechanics to determine ED (ED = W/Q mJ/mm 3 , where W = work done, Q = volume  ...  Cartilage fatigue may be a factor in the precocious development of degenerative changes in the temporomandibular joint (TMJ).  ...  Stefan Erni, Alessandro Gallo, Vera Colombo, and Eveline Studer contributed to computer programing and data analysis at the University of Zurich.  ... 
doi:10.1177/0022034517704375 pmid:28414608 pmcid:PMC5502957 fatcat:yngrrmvgs5bhhc642kuozirpnm

MRI and Image Quantitation for Drug Assessment - Growth Effects of Anabolic Steroids and Precursors

Haiying Tang, E.X. Wu, J.R. Vasselli
2005 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference  
In the study, MR image acquisition and analysis protocol were established and validated for investigating the effects of anabolic steroids and precursors on muscle growth and body composition in a guinea  ...  Semi-automatic and interactive segmentation methods were developed to accurately label the tissue of interest for tissue volume estimation.  ...  ACKNOWLEDGEMENT This study was in part supported by US Dept. of Interior.  ... 
doi:10.1109/iembs.2005.1616128 pmid:17281897 fatcat:scj5mcxg6jcgzfwts5bko6qoy4

In vivo MRI quantification of individual muscle and organ volumes for assessment of anabolic steroid growth effects

Ed X. Wu, Haiying Tang, Christopher Tong, Steve B. Heymsfield, Joseph R. Vasselli
2008 Steroids  
High correlations between the in vivo MRI and postmortem dissection measurements were observed for shoulder muscle complex (R = 0.86), masseter (R=0.79), temporalis (R=0.95), neck muscle complex (R=0.58  ...  This study aimed to develop a quantitative and in vivo magnetic resonance imaging (MRI) approach to investigate the muscle growth effects of anabolic steroids.  ...  This work was supported in part by US Dept. of Interior (NBCHC010064).  ... 
doi:10.1016/j.steroids.2007.12.011 pmid:18241900 pmcid:PMC4393993 fatcat:yppmhycounf4rbh3d3w2ro4juq

A 3D analysis of growth trajectory and integration during early human prenatal facial growth

Motoki Katsube, Shigehito Yamada, Natsuko Utsunomiya, Yutaka Yamaguchi, Tetsuya Takakuwa, Akira Yamamoto, Hirohiko Imai, Atsushi Saito, Siddharth R. Vora, Naoki Morimoto
2021 Scientific Reports  
Furthermore, during this time, the development of the zygoma and the mandibular ramus is closely integrated with the masseter muscle.  ...  Our results show that the growth trajectory of the human face in the early prenatal period follows a curved line with three flexion points.  ...  ., and N.M. contributed to the conception and design of the study; Y.Y., N.U., T.T., A.Y., and H.I. prepared the MRI data; M.K., and A.S. analyzed the data.  ... 
doi:10.1038/s41598-021-85543-5 pmid:33767268 fatcat:mbw7f3ie7nckpkd3f6kx4p4sri

The morphology of the mouse masticatory musculature

Hester Baverstock, Nathan S. Jeffery, Samuel N. Cobb
2013 Journal of Anatomy  
Currently, there are no detailed published data of the mouse masticatory musculature available.  ...  Here, using a combination of micro-dissection and non-invasive segmentation of iodine-enhanced micro-computed tomography, we document the anatomy, architecture and proportions of the mouse masticatory  ...  Acknowledgements The authors thank both Laura Fitton and Philip Cox in the Centre for Anatomical and Human Sciences, HYMS, for their help, comments and support.  ... 
doi:10.1111/joa.12059 pmid:23692055 fatcat:l7k5k2kmqnabpmuzrtaes2ac44

Short-term transcutaneous electrical nerve stimulation reduces pain and improves the masticatory muscle activity in temporomandibular disorder patients: a randomized controlled trial

Ana Paula de Lima FERREIRA, Dayse Regina Alves da COSTA, Ana Izabela Sobral de OLIVEIRA, Elyson Adam Nunes CARVALHO, Paulo César Rodrigues CONTI, Yuri Martins COSTA, Leonardo Rigoldi BONJARDIM
2017 Journal of Applied Oral Science  
The anterior temporalis and sternocleidomastoid (SCM) and T2 for the masseter and anterior temporalis was presented in the active TENS during MR at T1 assessment when compared with T0 (p<0.050).  ...  the effects of therapies on pain and masticatory muscle function are scarce.  ...  Acknowledgments The authors would like to thank CAPES -Coordination for the Improvement of Higher Education Personnel and São Paulo Research Foundation (FAPESP), grant # 2015/09913-4.  ... 
doi:10.1590/1678-77572016-0173 pmid:28403351 pmcid:PMC5393531 fatcat:j52qv3ocejgyfdmsg7b3xx43ku

Diagnostic Criteria of T1-Weighted Imaging for Detecting Intraplaque Hemorrhage of Vertebrobasilar Artery Based on Simultaneous Non-Contrast Angiography and Intraplaque Hemorrhage Imaging

Sukjoon Lim, Nam Hyeok Kim, Hyo Sung Kwak, Seung Bae Hwang, Gyung Ho Chung
2021 Investigative Magnetic Resonance Imaging  
Conclusion: Compared with SNAP, cutoff levels of the SI ratio between VBA plaque and temporalis muscle on T1W and TOF imaging for detecting IPH were approximately 1.35 times.  ...  The SI ratio between VBA IPH and temporalis muscle on T1W was significantly higher than that in the no-IPH group (235.9 ± 16.8 vs. 120.0 ± 5.1, P < 0.001).  ...  Acknowledgments Competing interests: The authors declare that they have no conflicts of interest.  ... 
doi:10.13104/imri.2021.25.4.323 fatcat:h32ms5rpdbcytodla7hldgo72e

A pilot study of nocturnal temporalis muscle activity in TMD diagnostic groups of women

F. Wei, M. H. Van Horn, M. C. Coombs, X. She, T. S. Gonzales, Y. M. Gonzalez, J. M. Scott, L. R. Iwasaki, J. C. Nickel, H. Yao
2017 Journal of Oral Rehabilitation  
The data were used to characterize muscle activity per N of bite-force (μV/N) for each subject, develop the clench-detection algorithm and test its accuracy.  ...  Ambulatory surface temporalis electromyography was self-recorded by each subject over three nights and analyzed using the algorithm and bite-force (N) vs muscle activity μV/N calibrations.  ...  Acknowledgments Mr. Kim Theesen helped in the production of the figures.  ... 
doi:10.1111/joor.12517 pmid:28449265 pmcid:PMC5499232 fatcat:ohljspbl5vh2jgpcp6hkhieley

Dynamic smile reanimation in facial nerve palsy

Krishnakumar Krishnan Santha, Subin Joseph, Sameer Latheef, Saju Narayanan, Santhy Mohanachandran Nair, Bibilash Babu, Anand Sivadasan, Srivatsa Manjunath Shet, Rajesh Vardhan Pydi, Ajit Pati, Srikant Aruna Samantaray
2020 Journal of the Korean Association of Oral and Maxillofacial Surgeons  
Long-term facial paralysis results in degeneration of the distal nerve segment and atrophy of the supplied muscles.  ...  Though free muscle transfer is considered gold standard procedure, temporalis myoplasty also gives satisfactory results.  ...  Acknowledgements The authors would like to thank Mrs. Shamna, the Department Secretary, and Mr. Vinod the operating room technician for their technical help and illustration of figures.  ... 
doi:10.5125/jkaoms.2020.46.2.143 pmid:32364354 pmcid:PMC7222615 fatcat:tw7zqgoo35dfbiaxhujmzbrwsm

EMG contamination of EEG: spectral and topographical characteristics

I.I Goncharova, D.J McFarland, T.M Vaughan, J.R Wolpaw
2003 Clinical Neurophysiology  
Conclusions: Frontalis or temporalis muscle EMG recorded from the scalp has spectral and topographical features that vary substantially across individuals.  ...  Methods: In 25 healthy adults, signals from 64 scalp and 4 facial locations were recorded during relaxation and during defined (15, 30, or 70% of maximum) contractions of frontalis or temporalis muscles  ...  This work was supported by grants from the National Center for Medical Rehabilitation Research, NICHD, NIH (HD30146); from NIBIB and NINDS, NIH (EB00856); and from the ALS Hope Foundation.  ... 
doi:10.1016/s1388-2457(03)00093-2 pmid:12948787 fatcat:egiivglapzdqzbm2r3yzdlucue
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